vol. 12-high & low voltage switch

7/30/2019 Vol. 12-High & Low Voltage Switch

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contents

02 ovrviw

03 Prdu cagry

03 LW41-126/T4000-40 High Voltage SF6 Circuit Breaker12 High Voltage Disconnector

14 GW4-27.5DW Single Grounding Once-through Operation Disconnector

15 GW4-110DW Three-phase Coupled Remodeling Disconnector

16 GW5-110D (W)/630/ 1250 Outdoor Triple Pole Mounted Disconnector

17 Medium Voltage Switch

23 VBP Indoor Solid-sealed Pole Vacuum Circuit Breaker

32 VK Vacuum Circuit Breaker (Designated Sales Region)

44 VY Vacuum Circuit Breaker (Designated Sales Region)

53 ZN85-40.5 Indoor AC High Voltage Vacuum Circuit Breaker

60 VS1-BYE Indoor High Voltage Vacuum Circuit Breaker

66 VW Single-phase Vacuum Circuit Breaker (Designated Sales Region)

67 UVA Vacuum Contactor - Fuse Combination

70 BYEW1 Series Air Circuit Breaker

71 BYEM1 Series Molded Case Circuit Breaker

75 BYEM1LE Series MCCB with Residual Current Protection

79 BYEM2Z Molded Case Circuit Breaker

81 BYEM6, BYEM6LE Series Miniature Circuit Breaker

83 BYQ2 Series Dual Power Supply Automatic Transfer Switch

86 BYES9 Series Dual Power Supply Automatic Transfer Switch

88 Vacuum interrupter


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2 High & Lw Vlag swih

Overview

Engage in the manufacturing, distribution, design and

installation of various high, medium and low voltage switch

assemblies of complete specifications and varieties.

Products include vacuum circuit breaker and contactor, vacuum

interrupter, SF6 MV gas insulated switchgear, high voltagedisconnector, various low voltage circuit breakers and switches.

Toshiba Baiyun Vacuum Interrupters (Jinzhou) Co., Ltd. is a joint

venture engaged in the manufacturing of vacuum interrupters

established jointly by Japan Toshiba K.K., Guangzhou Baiyun

Electric Group Co., Ltd. and Toshiba (China) Co., Ltd. with its

controlling shares held by Toshiba Group. It's the manufacturing

base of vacuum switch tubes. It sticks to the strategy of dual

brands, namely, Toshiba vacuum interrupter and Liaoju vacuum

interrupter. Its Liaoju vacuum interrupter is one of the top

four famous brands in China.

Nanjing Electric (Group) Co., Ltd. (the former name: Nanjing

Electro-Ceramic Factory) was established in 1936. Through

merger and acquisition, now it's the wholly owned subsidiary

of Baiyun Electric Group; it's the manufacturing base of high

voltage disconnectors; and its Thunderbrand registered in

1937 is famous at home and abroad.

Descriptive trademark is Guangzhou Famous Brand and

Guangdong Province Famous Brand. High, medium and low

voltage switchgear assembly is Guangdong Famous Brand.

Besides its proprietary brands, it also manufactures many

products with joint venture brands.

It successively established three j oint ventures with Toshiba

and Mitsubishi, and cooperated with Germany Si emens, France

Schneider and Switzerland ABB for more than 20 technologies,

and introduced the world advanced critical technologies

including 8PT, VK and OKKEN products.

For a number of years, the company has invested for more

than 100 million yuan. It respectively introduced more than 50

(sets) world advanced NC presses, NC shearers, NC benders,

mechanical machining centers, bus bar machining centers,

multi-purpose welding equipment and automatic spraying

production lines etc. from Japan, Switzerland, U.S., Britain, Italy,

Germany etc., and formed multi-functional metal plate and

mechanical processing and production lines; its production

technology and production capacity can represent the highest

achievement in the fellow sector at home; its annual production

capacity of high and medium voltage switchgear assemblies is

6000.

Its products are mainly used by the key customers in eight

industries including power grid, rail transportation, power

plant, petroleum and petrochemical and its market share

in the construction of Southern Power Grid is 50%. So far,

the company has participated in 15 provincial level power

grid construction projects, the construction of more than 80

power plants, as well as Beijing Metro and Guangzhou Metro,

becoming one of the 13 qualified suppliers of PetroChina and

Sinopec.

It introduces and sets up various management methods and

systems, including ISO9001, ISO14001, OHSAS18001, 6S, ERP,

CRM, PLM, JIT, MBO, CEMS etc., which provide high-quality

guarantee for its products.

The company has Corporate Technical Center approved by

Guangdong Province and state approved corporate technical

center high and low voltage switchgear assemblies research

sub-center, sets up eight multi-functional research labs in the

area of switchgear assemblies, has top high and low voltage

electrical products development and test techniques, and

possesses more than 80 test and detection equipment with the

highest level of the industry, and its metering center has been

approved as State Intermediate Metering enterprise.

Product Category

ovrviw

LW41-126/T4000-40 SF6 Circuit Breaker is outdoor live tank

circuit breaker, 3 phase, 50Hz, used in 126kV power system for

cutting off load current, fault current and switching circuit. It is

capable of 3 phase O/C and auto-reclosing, used to operate,

control ans protect power system.

This type of SF6 circuit breaker is self-developed product by our

company, using SF6 as insulation and arc extinction medium.

It adopts the latest self-energy arc extinguishing technology in

the word, with the technical performance reaching international

advanced level and leading position in China.

It is featured with reasonable design, compact structure and low

operating power. Spring mechanism is superior to hydraulic one

for no leakage of oil and nitrogen. This kind of SF6 circuit breaker

is the replacement product of SF6 puffer circuit breaker, having

the advantage of low noise, reliable operation, fast installation

and easy maintenance.

Wrkig dii

n. Im Ui Daa

1 Ambient temperature0C -30 ~ 50

2 Wind pressure Pa 700

3 Altitude m 1000

4 Seismic intensity Degree 9

5 Pollution degree of external insulation Class II, III, IV

6 Static tensile force of horizontal longitudinal terminal N 1250

7 Static tensile force of transverse horizontal terminal N 750

8 Static tensile force of vertical terminal N 1000

LW41-126/T4000-40 High Voltage SF6 Circuit Breaker


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thial daa irui brakr

Mhaial prpry

sF6 maagm

sruurCircuit breaker is composed of three poles, cross-beam, column

and spring operating mechanism (outline and dimension

shown in drawing 1). Three poles are on top of the cross-

beam, and the spring operating mechanism is right below

the cross-beam. The three poles are mechanical connection,

with each pole filled with SF6 as insulation and arc-extinction

medium, connected by pipeline to form a gas circuit system,

and monitored by pressure pointer type density relay. Electrical

control system is placed in the spring mechanism box.

Ar-quhig priipl

During the opening operation, when the static main contact

(3) and moving contact (4) separates, the current will transfer

to static arcing contact (10) and moving arc contact (11) for

continued flow, and the moving contact will keep up the

opening operation.

When breaking high current: during breaking operation,

SF6 turns into high temperature and pressure gas by the arc

generated by the separation action of moving arcing contact

and static arcing contact (10). Before spout (9) laryngeal departs

with static arcing contact, the gas flows into thermal expansion

n. Im Ui Daa

1 Rated voltage kV 126

2 Rated frequency Hz 50

3 Insulation

Rated short time power frequencywithstand voltage (wet, dry)

Phase to phase, phase to earthkV

230

Across the isolating distance 265

Rated lightning impulse withstandvoltage (positive, negative)

Phase to phase, phase to earthkV

550

Across the isolating distance 630

4 Rated current A 4000

5 Rated short-circuit breaking current kA 40

6 First-pole-to-clear factor 1.5

7 Rated short time withstand current kA 40

8 Rated duration of short-circuit s 4

9 Rated peak withstand current kA 100

10 Rated short-circuit making current kA 100

11 Rated operating sequence 0-0.3s-CO-180s-CO

12 Short-line fault breaking current kA 36; 30

13 Rated out-of-phase breaking current kA 10

14 Rated line-charging breaking current A 31.5

15 Electrical interruptive life of rated short-circuit current time(s) 16

16 Mechanical life time(s) 3000

17 Annual leakage ratio (SF6) % 1

18 Water content in SF6 ppm 150

n. Im Ui thial daa

1 Opening time ms 322

2 Closing time ms 605

3 Open-close time ms 300

4 Close-open time ms 805

5 Opening simultaneity ms 2

6 Closing simultaneity ms 3

7 Switch off time ms 60

sprig mhaim

n. Im Ui thial daa

1 Tripping and closing coil voltage/current V/A DC 220/2

2 Control circuit voltage V DC 220

3 Rated voltage / power of energy storage motor V/kW AC, DC 220/0.8

4 Energy storage time at 85-110% rated voltage s


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Fr udai, wigh ad dimi

1. Pole 2 . Cross-arm 3 . Column 4 . Spring operating mechanism

5. ON-OFF indicator and density relay 6. Terminal block 7. Mechanism chamber

Drawing 1 LW-126/T4000-40 AC SF6 Circuit Breaker

a. ON position b. Break high current c. Break small current d. OFF position

1. Porcelain sleeve 2. Static main contact pedestal 3. Static main contact 4. Moving main contact 5. Thermal expansion chamber

6. Pressure chamber 7. Intake valve 8. Moving main contact pedestal 9. Spout 10. Static arcing contact

11. Moving arcing contact 12. One way valve 13. Piston 14. Pressure relief valve

Drawing 2 Principle of self-energized arc-extinguishing

Drawing 3 Circuit breaker installation foundation

n. Im Ui Daa

1 Opening force (downward) N 21000

2 Closing force (upward) N 15000

3 Total weight including mechanism and gas kg 1400

4 Dimension (L*W*H) mm 3900*710*4884

Distancefromthelivepartstoground3230

Terminalblock

8-M36-4embeddedanchorbolts

(Providedby Baiyun)

150cablehole


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seondaryon

rolhemaiforLW-126/t4000-40AchighvolagesF6iruibreaker


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ordr irui

Please clearly state the ollowing items when ordering:

1. Type, name, quality of circuit breaker;

2. Rated voltage, rated current, rated short circuit breaking current and rated insulation level;

3. External insulation pollution degree (or specific creepage distance);

4. Primary wiring diagram;

5. Voltage of control circuit, now only DC 220V available;

6. Voltage of energy storage motor, AC/DC 220V motor available;

7. If gas processing equipment, SF6 leakage detector, micro-moisture meter required;

8. Spare parts list: name and quantity.


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High Voltage Disconnector

ovrviw

Nanjing Electric (Group) Co., Ltd. was restructured and became

the wholly owned subsidiary of Baiyun Electric Group and now

is the manufacture base of high voltage disconnectors.

Nanjing Electric (Group) Co., Ltd. (Nanjing Electro-Ceramic

Factory) has been producing high voltage disconnectors for

more than 40 years; it's one of the important manufacturers

of high voltage disconnector in our country. Products used forelectrification railway network system and si gnal indication

include GW4, GW5 and FWZ series of outdoor high voltage

disconnector, isolation load switch and equipped electric

mechanism and manual mechanism.

Rated voltages of products range from 10kV to 220kV, rated

current includes 630A, 1250A, 1600A, 2000A, 2500A, and

3150A, specific creepage distance has 16mm/kV, 20mm/kV,

25mm/kV, and 31mm/kV, which is of complete range of types

and specifications. The high voltage disconnector has high

performance and has passed the test by state or provincial test

center. Now it has tens of thousands machine units running

in the state power system, among which GW4 series are well

recognized by users to have reliable structure, flexible machine

driven system, convenient operation, stable contact resistance

etc. At present, its products have been sold to all Railway Bureaus

of the Ministry of Railways. In recent years, its metal accessories

including rod insulator cap, pedestal switch base frame etc. all

employ hot galvanizing technology, which greatly improves

the metalwork's ability to resist tarnishing. The company's

disconnector and load switches have been successfully used in

the railway projects including Beijing Kowloon Railway, Beijing

Shenyang Passenger Railway, Guanghan High-speed Rail,

Shanghai-Nanjing Intercity High-speed Rail, Guangdong-Hainan

Cross-sea Railway, Datong-Qinhuangdao Railway, Kowloon-

Canton Railway etc.

The product obtains ISO9001 Quality System Authentication.

Wrkig dii

1. 2000m or less than 3000m (3000m inclusive) above sea level

2. Surrounding ambient temperature is not higher than +40C

or lower than -30C, and not lower than -40C in severe cold

districts.

3. Seismic intensity does not exceed grade 8.

4. Wind pressure for outdoor products shall not exceed 700Pa

(equivalent to 31m/s).

5. Ice coating thickness shall not exceed 1mm in general districts

and not exceed 10mm and 20mm in heavy ice coating districts.

6. Indoor product temperature: relative temperature: daily

average value shall not be greater than 95% and monthly

mean shall not be greater than 90%. Saturated vapor pressure:

daily average value shall not be greater than 2.210-1MPa, and

monthly mean value shall not be greater than 1.810-1MPa;

when temperature drops sharply in the periods with high

humidity, it may condense.

7. The product is not applicable in the following places:

Places with fire or explosion;

Places with sharp swings, shakes or i mpacts

Places filled with chemical gases that can easily corrode

metals and insulation materials

8. Air pollution classes: no obvious pollution for the use of indoor

products; pollution classes for operating ambient of outdoor

products include class 0 (clear area), class I, class II, class III, and

class IV, which shall be specified by the technical requirements.

Note:

Accordingto theregulationsof GB5582-85ExternalInsulationPollution

Classof HighVoltageElectricPowerEquipment,the minimumnominal

specific creepage distance is 14.8mm/kV, 16mm/kV for class I, 20mm/

kV for class II, 25mm/kV for class III and 31mm/kV for class IV. Specific

creepage distance is the ratio of external insulation creepage distance

andequipmentmaximumvoltage.

If the uses requirements are beyond the above standard service

conditions, please contact with relevant departments of the company

(factory).

U

It can be used for the switch of HV electrification railway

contact network system without carrying current and

electrical isolation between the electrical equipment under

maintenance such as primary busbar and breaker and the

energized high voltage line.

Load switch can open the rated current and cut off short-

circuit current, and has obvious break distance.

sadard

1. GB1985 Alternating Current High-voltage Disconnectors

and Earthing Switches

2. GB11022 Common Technical Requirements for High Voltage

Switchgear

3. Equivalent IEC-129 (1984) publication Alternate Current

Disconnectors and Earthing Switches by equivalent

4. Equivalent IEC-694 (1980) General Specifications for High

Voltage Switchgear and Control Standards

5. GB311.1 Insulation Coordination for High Voltage Power

Transmission and Distribution Equipment

6. GB311.2-311.6 High-voltage Test Techniques

7. GB3309 Mechanical Test at Ambient Temperature for High

Voltage Switchgear

8. GB5582 External Insulation Pollution Class of High VoltageElectric Power Equipment

9. GB5273 Terminals for Transformers, High Voltage

Apparatuses and Bushings

10. GB3804-3.6kV-40.5kV High-voltage Alternating Current

Switch for Rated Voltage range from 3.6kV to 40.5kV

11. TB/T3150 High Voltage AC Disconnectors and Earthing

Switch for Electrification Railway

12. TB/T3151 High Voltage AC Load Switches for Electrification

Railway

ordr irui

1. Product model, name, rated voltage and rated current

2. Thermal stable current of the disconnector and grounding disconnector

3. Grounding disconnector: ungrounded, grounded on the right, grounded on the left, grounded on both sides

4. Creepage distance

5. Model and name of operating mechanism, working voltage of power, number of contactors for auxiliary switches, with

electromagnetic lock or not

6. Operation mode: triple-pole interlock or single-pole operation, single-pole, double-pole interlocking or triple-pole

7. Special inclination installation shall be indicated in an order (GW5).


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GW4-27.5DW Single Grounding Once-through Operation Disconnector

ovrviw

GW4-27.5DW outdoor AC high voltage disconnector for electrification railway is 50HZ outdoor HV electrical equipment. It can be

used for the switch of alternate current 27.5kV contact network with voltage and without load as well as the electrical isolation

between the electrical equipment under maintenance such as HV busbar and circuit breaker and the energized high voltage line. It

can also be used for breaking and making of low capacitance current and inductive current.

ovrall Dimi Drawig

GW4-27.5DW Single Pole Multipack Figure of Single Pole Grounded Once-through Operation Disconnector (matched with CJ11A-G electric mechanism)

1. GW4- 27.5DW single pole disconnector 2. Upper hoop joint 3. 32 water gas pipelines (prepared by users) 4. Lower hoop joint

5. CJ11A-G electric-operated mechanism

Mai hial paramr

Im Ui GW4-27.5DWRated voltage kV 27.5

Rated current A 1250~3150Rated withstand current kA 31.5~40

Rated peak withstand current kA 80~100

Rated short-circuit period s 4

Short-time power frequency withstand voltageGrounded

kV80

Fracture 90

Rated lightning impulse withstand voltageGrounded

kV185

Fracture 215

Static tension of terminal

Horizontal

N

750

Transverse 750Vertical 500

Creepage distance 1200

Mechanical life time(s) 10000

Fitted device Disconnector CJ11Earthing switch CS14

GW4-110DW Three-phase Coupled Remodeling Disconnector

ovrviw

GW4- 110DW three-phase interlock remodeling structure

Im Ui GW4-40.5DW GW4-126DWRated voltage kV 40.5 126

Rated current A 1250~3150 1250~3150Rated short time withstand current kA 31.5~40 31.5~50

Rated peak withstand current kA 80~100 80~100

Rated short-circuit period s 4 4

Short-duration power-frequency withstand voltageGrounded distance

kV80 230

Fracture 90 300

Rated lightning impulse withstand voltageGrounded distance

kV185 550

Fracture 215 650


Horizontal

N

750 1250

Lateral 750 750Vertical 500 1000

Creepage distance mm 1020~1260 3150~3910

Mechanical endurance time(s) 10000 10000

S up pl em en ta ry de vi ce D is co nn ec to r C J1 1 C J1 1Earthing switch CS14 CS14

GW4 series high voltage disconnector is single-phase dual

column horizontal open circuit structure; it's mainly composed

of base frame, rod support insulator, current-carrying part

and electric Operating device. Each phase has two support

insulators, which are respectively fixed to the bearing chock

on both sides of the base frame; they are connected by cross

member and can rotate horizontally; their intersection angle is

90. The conduction knife switch is split into halves, which are

fixed to the support insulator respectively; contact point of the

contactor is in between two support insulators. The terminal

employs flexible connection, with simple structure, reliable

contact and is convenient for repair.

GW4-126 high voltage disconnector can also be used for high-

profile layout (namely, operated with the control mechanism

drawn out). Parts and components for the intermediate driving

section will be provided along with the disconnector.

GW4-126 series can be furnished with CS14G manual control

mechanism or CJ11 electric control mechanism; the earthing

switch is furnished with CS14G manual control mechanism;

the manual control mechanism can also be used with DSW4electromagnetic lock.

It uses slot aluminum as the main conductor; it has large area of

dissipation, high intensity and is safe and reliable; the earthing

switch uses flexible configuration and can turn right and left

conveniently.

ovrall dimi drawig

Mai hial paramr

about

about

about


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GW5-110D (W)/630/1250 Outdoor Triple Pole Mounted Disconnector

ovrviw

GW5-126II(DW) series disconnector is mainly composed of

three single poles; each pole is composed of base frame,

support insulator, right and left contactors, grounded knife

switch, electric Operating device etc. Two support insulators

are respectively fixed to the rotary bearings of the pedestal, in V

type. Intersection angle of axial lines is 50; bevel gear joggle is

under two bearing chocks; the right and left contactors are fixed

to the top of support insulator; rotation of the bearing chock will

drive the synchronous rotation of the support insulator, thereby

to open and close two contactors; three single poles can be

interlocked by the interlocking drawbar.

This series of disconnector can be grounded on one side,

on both sides or ungrounded. CS17F and CS17D manual

control mechanism with the angle of rotation being 90are

used respectively for it. There is mechanical interlocking and

electromagnetic lock on the control mechanism to make sure

the operating sequence is right.

In order to meet user needs, this series of products can beinstalled in five different ways, namely, horizontal installation,

inclined for 25, inclined for 50, side installation (inclined for 90

and upside down installation.

ovrall dimi drawig

1. Single pole assembly; 2. Universal joint; 3. Pin with hole; 4. water gas pipe (prepared by user);

5. Locking ring; 8. Joint; 9. Link rod assembly; 10. Water gas pipe (prepared by user);

11. Supporting rack (prepared by user); 12. Oscillating arm; 13. Bushing; 14.M6 fastening screw;

15. Grounded knife switch; 16. Split pin; 17.CS17 manual control mechanism;

GW5-110IID (W)/630,1250 (90transmission) Triple Pole Multipack Figure of Outdoor Disconnector

Im Ui GW5-40.5DW GW5-126DWRated voltage kV 40.5 126Rated current A 1250~3150 1250~3150

Rated short time withstand current kA 31.5~40 31.5~50

Rated peak withstand current kA 80~100 80~100

Rated short-circuit period S 4 4

Short-duration power-frequency withstand voltageGrounded distance

kV80 230

Fracture 90 300

Rated lightning impulse withstand voltageGrounded distance

kV185 550

Fracture 215 650


Horizontal

N

750 1250

Lateral 750 750

Vertical 500 1000

Creepage distance mm 1020~1260 3150~3910Mechanical endurance time(s) 10000 10000

Su pplem ent ar y de vice Dis con nect or CJ11 CJ11

Earthing switch CS14 CS14

Mai hial paramr

Medium Voltage Switch

VB Vacuum Circuit Breaker

ovrviw

Application environmental conditions

Ambient temperature: upper limit +40C, lower limit - 10C;

Elevation: not exceeding 1000m;

Relative humidity: daily average value shall not be greater

than 95%; monthly average value shall not be greater than 90%;

Structural feature vacuum: with VEZA: with KYNB: special

25: 25kA32: 31.5kA40: 40kA50: 50kA

06: 630A12: 1250A16: 1600A20: 2000A25: 2500A32: 3150A40: 4000A

12kV

Rated breaking current

Type series

Rated current

Rated voltage

Product line VB vacuum circuit breaker

n. nam (ui) thial paramr

1 Rated voltage (kV ) 12

2 Rated cur ren t (A) 630, 1 250, 160 0 2000, 2500, 3150, 4 000

3 Fr eq ue nc y ( Hz ) 5 0

4 Rated short-circuit breaking current (kA) 25, 31 .5. 40 40. 50

5 Rated short-circuit making current (kA) 63, 80, 100 100, 125

6 4s rated short time withstand current (kA) 25. 31 .5. 40 40. 50

7 Rated peak withstand current (kA) 63, 80. 100 100. 1258Rated O/C current

Single capacitor bank current (A) 630 800

9 Back to back capacitor bank current (A) 400

10 1min power frequency withstand voltage (kV) 42 (Fracture: 48)

11 Impulse withstand voltage (kV) 75 (Fracture: 85)

12 Rated operating procedure O-0, 3s-CO-180s-CO (40, 50kA is O-180s-CO-180s-CO)

13 Rated short-circuit current operation time(s) 50

14 Mechanical endurance (times) 30000 20000

15 Rated breaking time (ms) 60

16 Trip time (ms) 30

17 Making time (ms) 45

18 Rated operating voltage (V) AC/DC 220V/110V

19 Rated operating current (A ) 2.0/4.0

20 Single-phase major loop resistance (without primary plug)1N=630A 1N=1250A 1600a1N2000A 1N2500A

R65 R40 R30 R25

Places without fire, inflammables, explosion hazards, chemical

corrosion and sharp vibration;

Seismic intensity: not exceeding grade 8;

For special operating ambient, please contact with the

manufacturer.

Type specication

thial paramr

Electric parameters

notlessthan1m

notlessthan2m

Earthingknife

Earthingswitchshalf

(Installatin hole)

DirectionA


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srial n. nam (ui)chararii paramr

Brakig urr 40KA Brakig urr = 50kA

1 Contactor torque (mm) 8.01 9.01

2 Contacting travel (mm) 30.5

3 Average closing speed (m/s) 0.4-0.8

4 Average trip speed (m/s) 0.8-2.0

5 Jump time of contactor closing (ms) 2

6 Three-phase asynchronization (ms) 2

Mechanical parameters ovrall dimi

Lw urr

sruur

Main elements of VB vacuum circuit breaker include the operating device, driven gear, insulating boot, vacuum interrupter

Closing

spring

Hoisting hookFluctuation

conductor

Vacuum

interrupter

Flexible

connection

Insulation

drawbar

Contactor

spring

Tripspring

Lever

Chassis

Figure 3.1 Sectional View of Disconnector

Insulatingboot

Housing

Vacuum

interrupter

Operating

device Insulation

cover

Primary

plug

Valvepress

plateDrivengear

Chassis

Trippaddle

Tripfanningstrip

Closingspring

Tripknob

Closing button

Closingreleasingslab

Closingcoil

Closingwedge Contactorspring

Tripspring

Charging

motorand

gearbox

Vacuum

interrupter

Tripcoil

Figure 3.2 Device Module View Figure 3.3 Device Module View

1.Primaryplug;

2. Vacuuminterrupter;

3. Handle;

4. Counter;

5. Closingandtrip indication;

6. Insertingholeof charginghandle;

7. Secondaryplug;

8. Springchargingindication;

9. Closingbutton;

10. Tripknob

Figure 4.1.1 Outline Drawing of Low Current Breaker

chai

Figure 4.1.2 Chassis Mechanism

Tripfanningstrip

Rachet

Manualcharging

gearClosinghalf

shaft

Counter

Chargingmotor

andgearbox

Triphalfshaft

Excitationsw itch

Chargingcamshaft

Mainshaft

Contactorspring


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Havy urr

Figure 4.1.3 Outline Drawing of Heavy Current Breaker

1.Primaryplug;

2.Vacuuminterrupter;

3. Handle;

4.Counter;

5.Closingandtripindication;

6.Insertingholeofcharginghandle

7.Secondaryplug;

8.Springchargingindication;

9.Closingbutton;

10.Tripknob

Secondary schematic diagram

Note:theanti-tripcircuitcanbecancelledaccordingtocustomerrequirements

TC:(tripcoil)

CC:(closingcoil)

M:(chargingmotor)

LS1~LS5,s

8,s:(limitswitch)

a1~a8:(Auxilisrycontact)

b1~b8:(Auxiliarycontact)

Y:(auxiliaryrelay)

X:(Controlrelay)

F:(Fuse)

C:(capacitor)

R1~R4:(resistor)

D1~D6:(Diode)

Test position Work position


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Product lectotype

n.

VB-12 -------------------------------------

Maimdl sri

Widh

auxiliary

abi

opraig

vlag

MaidimiAi-

rip

trippig

lur

Rk-

i

oupu

a

ovr-

urr

rla

earhig

mdA B c1 c2 D e F G H J K L M n P W X Y

1 V B- 1206B25

A

W650

AC/DC110

220

528502494 494598

(608)

648

(658)

436

(443)637275280

76

(81)

78

(71)322

294

(304)150

35

20189

0:No1:

Yes

0:No

1:Yes

0:No

1:Yes

3:3a3b5:5a5b

8:8a8b

0:No

1:Yes

0:bothsides

1:

bottom

2 VB-1212B25 49

3 V B- 1206B25

W800 685 652 638 638598

(608)

648

(658)

436

(443)637275280

76

(81)

78

(71)322

294

(304)210

35

28261

4 V B- 1212B25

5 V B- 1206B32

6 V B- 1212B32

497 V B- 1216B32

8 V B- 1220B32

9 V B- 1212B40

7010 VB-1216B40

11 VB-1220B40

12 VB-1225B40

W1000 880 852 836 840 5 87 637 350

700

3 10 2 96 8 5 8 6 3 43 2 62 2 75

109

25262

13 VB-1232B40

14 VB-1240B4070

15 VB-1212B50

74616 VB-1232B50109

17 VB-1240B50

e.g. VB-1212B32A/W800DC220V100500

VBP Indoor Solid-sealed Pole Vacuum Circuit Breaker

Note: 1. Number in the brackets means special models

2. Please contact with the manufacturer for other special models needed

Prdu Lyp Irmai sh

Procurement

company

CompanyAdd.

Proposing Dept. Promoter Tel:

Endcustomer

Model required Quantity

ModelRated

voltage

Rated

current

Type

series

Ratedbreaking

current

Structural

feature

Auxiliary

cabinetwidth

Operational

powersupply

Anti-

trip

Closing

closure

Rocking-in

closure

Output

contact

Over-current

release

Earthing

form

Reference

value VB - 1 2: 12 kV

06:630A

12:1250A

20:2000A

25:2500A

32:3150A

40:4000A

B

25:25kA

32:31.5kA

40:40kA

50:50kA

Vacuum:

withVEZ

A:withKYN

B:special

/

W650

W800W1000

AC220V

AC110V

DC220V

DC110V

0:No

1:Yes

0:No

1:Yes

0:No

1:Yes

3:3A3B

5:5A5B8:8A8B

0:No

1:Yes

0:both

sides1:bottom

VB - 12 B /

Note:

1.Standardconfiguration:rockinghandle,charginghandle(1 setforevery3 switches)

2.Pleasefill inthefollowingcolumnforotherconfigurationorspecialrequirements.

Otherspecialrequirements

ovrviw

VBP indoor solid-sealed pole vacuum circuit breaker is 12kV-

24kV three-phase alternating current 50Hz indoor high voltage

switchgear; it's applicable to the control and protective cable,

overhead line, transformer, current motor, current generator and

capacitor bank in power transformation and distribution station,

and can be widely used in power plant, power grid, metallurgy,

petrochemical, and urban infrastructure construction projects

such as airports, buildings, metros etc.

chararii

High reliability

Compared with traditional integral type breaker, the number

of solid-sealed polar pole breaker's parts and components,

conductor faying surface, and connecting fasteners is greatly

reduced, which simplifies the assembling of major loop, reduces

the loop resistance, and greatly improves the reliability of

connection of major galvanic circle.

Stable insulating property

Surface of vacuum interrupter is poured with epoxy, so the

impact of polar pole's external environment on vacuum

interrupter is reduced to the minimum; its insulating ability

can protect the breaker from being affected by dust, moisture,

beasties, dews and pollution, so it can fully meet the creeping

distance requirements of class 2 polluted districts specified in

GB/DL.

Firmer structure

Epoxy medium can protect the vacuum interrupter better,

and protect it from accident mechanical damages during

assembling and transportation.

Miniaturization

The use of epoxy as insulating medium can greatly shorten the

phase spacing, and reduce the volume of the vacuum breaker

and its auxiliary switch cabinet.

Free o maintenance

The entire polar pole is poured to an integral unit, so the

vacuum interrupter can be better protected; the maintenance

free feature of vacuum interrupter enables the breaker to be

maintenance free.

1. Dynamicconductingrod

2. Guidesleeve

3. Corrugatedtube

4. Dynamiccoverboard

5. Shieldcoverofcorrugatedtube

6. Ceramicpackage

7. Shieldtube

8. Contactorsystem

9. Staticconductingrod

10. Staticcoverboard


14/49

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More environment riendly

Solid-sealed polar pole breaker can to a certain degree replace

SF6 gas as protective insulation, so it's more environment

friendly.

Satisaction o diferent standards

VBP indoor solid-sealed pole vacuum breaker can satisfy

different GB, DL standards.

Working condition

Ambient temperature: upper limit +40C, lower limit -15C;

Elevation: not exceeding 3000m

Relative humidity: daily average value shall not be greater than

95%; monthly average value shall not be greater than 90%

Places: indoor, without fire, inflammables, explosion hazards,

chemical corrosion and sharp vibration


thial paramr

Rated short-circuit

breaking current 25:

25kA;32:31.5kA; 40:40kA

Product series

Rated current

06: 63A; 12:1250A;

Rated voltage:

12:12KV; 24:24KV;

Solid-sealed polar pole

Design serial number

Vacuum circuit breaker

tabl 1 elri Paramr

n Im Ui thial paramr

1 Rated voltage kV 12, 24

2Rated

insulation level

Lightning impulse withstandvoltage

kV

To ground 75 (fracture 85), to ground 125 (fracture 145)

1min power frequency withstandvoltage

To ground 42 (fracture 48), to ground 65 (fracture 79)


4 Rated current A 630, 1250, 1600 2000, 3150, 4000

5 R ated short-circuit break ing current

kA

25, 31.5, 40 40

6 Rated short-circuit making current (peak value) 63, 80, 100 100

7 Rated peak withstand current 63, 80, 100 100

8 Rated short time withstand current/ duration kA/s 25/4, 31.5/4, 40/4 40/4

9 Rated O/Ccurrent

Single capacitor bank currentA

630 800

10 Back t o back capaci to r bank cu rren t 400

11 Trip time ms 30

12 Making time 45

13 Mechanical endurance time(s) 20000

14 Rated breaking time ms 60

15 Rated operating voltage V AC/DC 220V/110V

16 Rated operating current A 2.0/4.0

17 R ated operating sequence O-0 .3s - C O - 180s-CO

18 M ajo r loo p resi st an ce ( 20C) M 0 ln =630A60 ln=1250A 40 1600=Sln=s2000A30 3150A=Sln=S4000A25

For other special requirements beyond the above stated

application ambient conditions, please contact with the

manufacturer.

Mdl dripi

tabl 2 Mhaial Paramr

n. Im Uichararii paramr

Rad vlag 12kV Rad vlag 24kV1 Contactor torque mm 91 131

2 Contactor overtravel 3.5 0.5 3 0.5

3 Average closing speed m/s 0.4~0.8 0.6~1.0

4 Average trip speed 1.0~1.8 1.3~1.7

5 Closing bounce time ms 2

6 Asy nchronization of c losing and trip 2

cirui brakr uid viw

Heavy current breaker o rated voltage 12kVLow current breaker o rated voltage 12kV

Low current breaker o rated voltage 24kV Heavy current breaker o rated voltage 24kV

Secondaryplug

Trippingbutton

Closingandtrip

indicationSpecification

Counter

Uppercontactarm

Solid-sealedpolarpole

PrimaryplugLowercontactarmInsertingholeofcharginghandleClosingbutton

Springcharging

indication

Insertingholeof

crankhandle

Secondaryplug

Trippingbutton

Closingandtripindication

Specification

Insertingholeof

crankhandle

Coolinggrid

PrimaryplugUppercontactarm


CounterLowercontactarmInsertingholeofcharginghandleClosingbutton

Springchargingindication

Secondaryplug

Counter

Trippingbutton

Closingandtrip indication

Specification

PrimaryplugUppercontactarm


Lowercontactarm

Insertingholeof charginghandle

Closingbutton

Springchargingindication

Insertinghole ofcrankhandle

Secondaryplug

Tripbutton

Closingandtripindication

Specification

Coolinggrid

Primaryplug

Uppercontactarm


LowercontactarmCounter

Insertingholeof charginghandleClosingbutton

Springcharging

indication

Insertingholeof crank

handle


15/49

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High & Lw Vlag swih

Iral ruur irui brakr

Circuitboard

Tripcoil

Tripspring

Mainshaft

Closingcoil

Rocking-inclosure

Closingspring

Auxiliaryswitch

Springdevice

Draftgear

Insertingmouthofcrankhandle

ovrall dimi irui brak

Overall dimension low current breaker o rated

voltage 12kV

1.Primaryplug; 2.Upperconductingrod; 3.Solid-sealedpolarpole;

4.Lowerconductingrod; 5.Secondaryplug; 6.Counter; 7.Tripbutton;

8.Closingandtripindication; 9.Handle; 10.Insertingholeofcharginghandle;

11.Closingbutton; 12.Springchargingindication

Overall dimension o rated voltage 24kV heavy current breaker

1.Tripbutton; 2. Closingbutton; 3. Closingandtripindication; 4. Secondaryplug;

5. Counter; 6. Insertingholeofcharginghandle; 7. Springchargingindication;

8.Handle; 9.Primaryplug; 10.Uppercontactarm; 11.Solid-sealedpolarpole;

12.Lowercontactarm

1. Tripbutton;

2. Closingbutton;

3. Closingandtripindication;

4. Secondaryplug;

5. Counter;

6. Insertingholeofcharginghandle;


8.Handle;

9. Primaryplug;

10. Uppercontactarm;

11. Solid-sealedpolarpole;

12. Lowercontactarm

Overall dimension o rated voltage 24kV low current breaker

1. Tripbutton;

2. Closingbutton;

3. Closingandtripindication;

4. Secondaryplug;

5. Counter;

6. Insertingholeofcharginghandle;


8.Handle;

9. Primaryplug;

10. Uppercontactarm;

11. Solid-sealedpolarpole;

12. Lowercontactarm

Prdu li h

n.

Mai dimi

Mai mdl

Widh

auxiliary

abi

opraig

vlag

Ai-

rip

clig

lur

Rk-i

lur

oupu

a

ovr-

urr

rla

earhig

mdA B c D e F G H J K L M n

1 VBP-1206B25

W800

DC/AC110220

685 652 638 6 08 4 36 641 280 2 75 76 78 210 304

0: No1:

Yes

0: No1: Yes

0: No1: Yes

3:3a3b5:5a5b8:8a8b

0: No1: Yes

0: bothsides

1:bottom

2 VBP-1212B25

3 VBP-1212B32

4 VBP-1212B40

5 VBP-1216B32

6 VBP-1216B40

7 VBP-1220B32

8 VBP-1220B40

9 VBP-1232B40

W1000 885 842

840 5 87 350 700 296 3 10 85 86 275 29410 VBP-1240B40

11 VBP-2406B25

838 747 447 775 326 310 71 126 275 336 454

12 VBP-2412B25

13 VBP-2412B32

14 VBP-2416B32

15 VBP-2420B32

16 VBP-2432B32 373 447 775 346 310 71 126 275 336 443

e.g. VBP-2432B32/W1000 DC220V 100500

Overall dimension heavy current breaker o

rated voltage 12kV


16/49

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High & Lw Vlag swih

shmai diagram rl lp Iallai ad mmiiig

Inspection beore installation

After unpacking the circuit breaker, check whether the

assemblies are complete according to the packing list; confirm

there are no damages in its appearance, no water log or

impurities; make sure the screws are tightened, the major loop

is firmly fastened and the product can run normally. After the

inspection, clean the dust on the surface. Check the degree

of vacuum of the vacuum interrupter using power frequency

withstand voltage method (trip the breaker and impose power-

frequency voltage to the fracture).Install the machine after it's

qualified in inspection.

Commissioning

Products which are in good condition after unpacking

inspection need no commissioning; only the breakers

which do not meet the technical requirements or whose

parts and components are changed need commissioning.

(Commissioning shall be conducted with the help of the

company's technicians; if detailed product information is

required, please contact with our company directly)

First of all, adjust the adjusting nut at the lower end of the

dynamic conducting rod of vacuum interrupter, so that the

vacuum interrupter's contactor torque and contactor overtravel

can reach the specified value of the specification; Then check

whether all parts of the shaft are correctly connected and

whether the oil bumper is normal; Finally, adjust the device so

that it can operate normally; there is be no clamping stagnation

in manual operation, electro control, charging, closing and

tripping. After commissioning of the entire breaker, it shall meet

the requirements of parameters list in table 2.

oprai ad maia

Operational readiness inspection

Check whether the installed base of breaker is level and whether

the fundamental plane can bear the weight of switch and

relevant electrical force;

M:chargingmotor

CC:closingelectromagnet

TC:tripelectromagnet

1WK1-5:limitswitch

FK:auxiliaryswitch

Kj:controlrelay

C1-C2:capacitor

Rd:fuse

R1-R4:resistor

S8-S9:auxiliaryswitch(containedbythechassis)

D1-D6:diode

Fj:auxiliaryrelay

Check whether the connecting line is broken;

Check whether the breaker is damaged mechanically;

Conduct power frequency withstand voltage test to the breaker

to check its insulation level.

Manual closing and trip

Manual charging: insert the charging handle from the inserting

hole of charging handle on the panel to store energy; when the

device ticktocks, and the charging sign points to the charging

position, it shows the spring device has finished charging.

Manual closing: press the closing button on the panel, the

closing-trip sign will show the closedposition, meaning that it's

closed.

Manual trip: press the trip knob on the panel, the closing-trip

sign will show the tripping position, meaning that it's tripping.

Electric closing and trip

Charging operation: connect the control loop of the breaker,

power on and after the charging signal is sent out, the breaker's

control wiring is powered on; the motor will be powered on

through the control loop and then it rotates and drives the

closing spring to store energy. After the closing spring finishes

charging, the limit switch will cut off the motor power and the

charging sign will point to the charging position.

Closing operation: after the closing instruction is given out,

the closing coil excites and the iron core moves to hit the

closing interlocking; the closing spring releases energy and the

breaker will be switched on; after the closing operation, the

closing-trip sign will show the closed position, and under suchcircumstances the charging device is in free state.

Tripping operation: after the tripping instruction is given out, the

trip coil excites and the iron core moves to separate the tripping

interlocking; the tripping spring releases energy and the breaker

will be switched off; after the tripping operation, the closing-trip

sign will show the switch-off state.

Test position Working condition


17/49

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Maintenance and repair

The maintenance intervals and contents are changing along

with the service conditions, on/off times and the level of

breaking current.

Normally running breaker shall be maintained regularly; clean

the dust on the insulation surface, and all moving parts shall be

poured with lubricating oil regularly;

Check whether the screws are loosened after operating for

2000 times; if screws are l oosened, tighten them timely;

Check immediately when there are closing or tripping faults;

During maintenance, the vacuum interrupter shall not be hit

with hard objects (such as tools);

Mechanical features testing and adjustment of the breaker

shall only be conducted by professionals.

srag

The breaker shall be placed in the room that is dry, ventilated,

damp proof and has no noxious gas; pay attention to the

following notes and remember to fi x the dust-proof cover.

The storage place shall be dry and kept out of the sun;

Avoid corrosive gas and dust;

Avoid places with sharp variation in temperature (sharp

variation in temperature may cause frosting, which may reduce

the performance or cause defects).

Aahm papr

Quality certificate

Factory inspection report

Checklist of attachment spares, parts and accessories

Packing list

Installation and instruction manual

Other relevant documents

ordrig irui

Type and name of breaker

Rated voltage (kv)

Rated current (A)

Rated short-circuit breaking current ( kA)

Quantity

Operating device voltage (AC/DC)

Accessories

If users have other special requirements (such as elevation,

temperature etc.), please make notes before placing orders.

n. nam U

1 Manual charg ing handl e For manual charg ing of breaker

2 R ocking handl e of breaker R ocking in and out of breaker

3 58-core a ir socket Plug match between secondary socket and vacuum c ircuit breaker

Li ari

Prdu Lyp Irmai sh

Procurement companyCompany Add.

Proposing Dept. Tel:

End customer

Model required

ModelRated

voltageRated

currentTypeseries

Ratedbreakingcurrent

Structuralfeature

Auxiliarycabinetwidth

Operatio-nal power

supply

Anti-trip

Closingclosure

Rock-inclosure

Outputcontact

Over-currentrelease

Earthingmode

Referencevalue

VBP - 12:12kV

06:630A12:1250A16:1600A20:2000A25:2500A32:3150A40:4000A

B25:25kA

32:31.5kA40:40kA

Vacuum: withVEZ

A: with KYNB: special

W650W800

W1000

AC220VAC110VDC220VDC110V

0: No1: Yes

0: No1: Yes

0: No1: Yes

0: No1: Yes

0: both sides1: bottom

VBP - 12 B

Note:Standard configuration: rocking handle, charging handle (1 set for every 3 switches)Please fill in the following column for other configuration or special requirements.

Other special requirements


18/49

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VK Vacuum Circuit Breaker (Designated Sales Region)

Miiaurizai dig

It adopts three-phase insulating boot which can be used

for inter-phase and phase-ground insulation and support of

interrupter; it's delicate in appearance, compact in structure,

small in size and light in weight. Rear part of the insulating boot

has insulation cap which can realize the omniseal of breaker; it

can be furnished with a 650 mm wide cabinet.

Larg rpig dia vauum irrupr

Surface creeping distance of the corrugated pipe interrupter

produced by Toshiba Corporation exceeds 240mm, making it

safer and more reliable in use.

cld prai

Bottom of the breaker has a chassis and the use of cabinet can

realize closed operation, making it safer and more convenient.

High rliabiliy

From design to production, VK type vacuum circuit breaker is

under strict quality control system.

L maia

VK vacuum circuit breaker needs no special maintenance;

besides, with special structural design, it's easy to operate and

repair.

Lg rvi li

Mechanical endurance of Vk vacuum circuit breaker is >20000

times, and rated short-circuit current opening is >50 times.

n pllui virm

Vacuum circuit breaker has no decomposed product and will

generate no pollution to environment; there is little noise during

its operation.

Reliable vacuum circuit breaker

With the technical support of Toshiba which is most

experienced in the manufacturing of vacuum equipment

and the introduction of Toshiba's advanced manufacture and

monitoring equipment, Guangzhou Toshiba Baiyun Electric

Equipment Co., Ltd. will provide good quality and highly reliable

vacuum circuit breakers to the vast customers.

Toshiba world leading vacuum technique

Toshiba has been dedicated to improving and developing

vacuum technique since 1962.

Now its annual output exceeds 300 million, which is leading

in the world

The p roduct has l arge surfac e cre eping distance and

strong pollution resistance ability, which can meet the market

demands in China

Patented technology of longitudinal magnetic field, strong

ability in opening circuit

More than 40 years' experience in manufacturing and

operation, high reliability

ovrviw

Product overview

VK vacuum circuit breaker is produced by Guangzhou Toshiba

Baiyun Electric Equipment Co., Ltd. through introducing the

improved technology of Toshiba. The product is of omniseal

handcart type; its general layout is suspension type; it adopts

the three-phase integral insulating boot and is used for inter-

phase and phase-ground insulation and fixed interrupter; It

uses the charging spring device, has the functions of manual

charging and electric charging, and has anti-bouncer. The

operating device has mechanical and electric interlock which

can prevent maloperation. At its bottom there is chassis for

closed operation.

VK type vacuum circuit breaker is 3.6 ~ 12kV three-phase

alternating current 50Hz indoor high voltage switchgear; it can

be used for the control or protection of power transmission and

distribution system in power plants, substations and industrial

and mining companies, especially for opening circuit in places

with vital power load and frequent operations.

Characteristics

Rliabl brakig prrma

VK type vacuum circuit breaker adopts the high-performance

vacuum interrupter produced by Toshiba Corporation; during

breaking, the electric arc in the vacuum can diffuse at a high

speed, which can realize arc quenching when the current

reaches zero for the first time.

sa ad rliabl

Vacuum circuit breaker takes vacuum as the arc-extinguishing

medium which will generate no explosion and fire during

breaking.

saiai dir adard

VK vacuum circuit breaker can meet GB, DL, IEC, and JEC

standards.

Working condition




95%; monthly average value shall not be greater than 90%;

Places without fire, inflammables, explosion hazards, chemical

corrosion and sharp vibration;


For special operating ambient, please contact with the

manufacturer.

Model description

Structural

feature

Vacuum:withVEZ

A:withKYN B:special

25:25kA; 32:31.5kA

40:40kA; 50:50kA

06:630A

12:1250A

16:1600A

20:2500A

32:3150A

40:4000A

12kV

Ratedbreakingcurrent

Type series

Rated current

Rated voltage

Product series VKvacuumcircuitbreaker


19/49

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Mechanical parameters

sial viwthial paramr

Electric parameters

n. nam (ui) thial paramr

1 Rated voltage(kv) 12

2 Rated current(A) 630, 1250, 1600 2000, 2500, 3150, 4000

3 Frequency (Hz) 50

4 Rated short-circuit breaking current( kA) 25, 31 .5. 40 40. 50

5 Rated short-circuit making current ( kA) 63, 80, 100 100, 125

6 4s rated short time withstand current ( kA) 25. 31 .5. 40 40. 50

7 Rated peak withstand current ( kA) 63, 80. 100 100. 125

8 Rated O/Ccurrent

Single capacitor bank current (A) 630 8009 Back to back capacitor bank current (A) 400

10 1min power frequency withstand voltage(kV) 42 (fracture: 48)

1 1 I mp ul se w it hs ta nd v ol ta ge ( k V) 7 5 ( fr ac tu re : 8 5)

12 R ated operating procedure O-0 .3s-CO-180s-CO (40 , 50kA jO-180s-CO-180s-CO)

13 R ated short-c ircuit current operation t imes 50

14 Mechanical endurance (times) 30000 20000

15 Rated open circuit time (ms) 60

16 Trip time(ms) 30

17 Making time(ms) 45

18 R ated opera ti ng volt age( V) AC/DC 220V/110V

19 Rated operating current(A) 2.0/4.0

20 Single-phase major loop resistance (without primary plug)I n=630A In=1250A 1600AI n2000A I n2500A

R60na R40na R30nD

n. nam (ui)chararii paramr

Brakig urr40KA Brakig urr = 50kA

1 Open contact clearance (mm) 8.01 9.01

2 Contacting travel (mm) 30.5

3 Average closing speed (m/s) 0.4-0.8

4 Average trip speed (m/s) 0.8-2.0

5 Ju mp ti me of co nt act or clos ing (ms )


20/49

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Structure o the operating device

opraig dvi

The operating device adopts four-bar structure. During

closing, the closing spring drives the closing camshaft

to rotate, and rotation of cam will press the four bars to

drive the main shaft to close. During tripping, the tripping

fanning strip rotates and drives the connecting rod to

activate the four bars, so that the four bars lose balance;

the quick moving of four bars will drive the rotation of the

main shaft to open.

On the device there is a line indicating the abrasion state of

contactor and the abrasion of contactor can be observed

from its front side. For details, please refer to the validation

of contactor abrasion in the maintenance and repair part.

Lad hararii

During closing of vacuum circuit breaker, the closing spring

release energy and draw and press the trip and contractor

spring respectively; the trip and contactor spring store energy.

Figure 3.3 Outline drawing of heavy current breaker(2500-4000A)

Secondaryplugofcontrolloop


Closing/tripi ndication

(closing:red;trip:green)

Counter

Insertingholeof crankhandle

Tripbutton

Closingbutton (underneaththe interlocking

coverboard;thecoverboardis optional)

Chargingindication

(white:discharged;yellow:charged)

Specification

Primaryplug

Insulationcover

Vacuuminterrupter

Insulatingboot

Figure 3.4 View of device on the breaker

Closingspri ng

Circuitboard

Auxiliaryswitch

Closingcoil

Deviceinterlock

Contactorabrasion mark

Electric chassis operationmotor(optional)

Rockingin interlockelectromagnet

Rocking-incl osure

Tripcoil

Tripspring

Mainshaft

Contactorspring

Draftgear

Trippingfanningstrip

Rachet

Manualcharging gear

Closinghalfshaft

Counter

Chargingmotorandgearbox

Triphalfshaft

Limitswitch

Chargingcamshaft

Mainshaft

Contactorspring

Figure 3.5 Device Module View

Trippaddle

Trippingfanningstrip

Closingspring

Tripbutton

Closingbutton

Closingreleasingslab

Closingcoil

Tripcoil

Vacuuminterrupter

Chargingmotorandgearbox

Tripspring

Closingwedge Contactorspring

Figure 3.6 Device Module View

Comparison between VK device and like products :

The most proper load characteristics Higher calorie running

Low fusion welding rate of vacuum interru pter contactor

Figure 3.7 Load characteristics of the device

During tripping, the trip and contactor spring release energy

and act together to separate the dynamic & static contactors of

the vacuum interrupter quickly.


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B Internal structure C Conditions at the arc

Figure 3.8 Structure of vacuum interrupter and drawing of arc extinction principle

Staticcontactor

Ceramicpackage

Metalbellows

Shieldcover

Dynamicc ontactor

Structure and principle o vacuum interrupter

The interrupter adopts the longitudinal magnetic field electrode

technology and controls the electric arc through the magnetic

field to realize fast arc extinction.

With the action of the current flowing through the electrode,

there is longitudinal magnetic field generated between the

contactors. With the action of the longitudinal magnetic field,

the electric arc rotates on the electrode surface and diffuse to

the electrode surface fast, so arc voltage is low and stable and

there is little contact loss, so that the contactor of interruptercan work for a longer time.

trippig prai

Press the trip button and the breaker opens. Then, the closing

and trip indication shows "open".

opraial mhd ad ai pifai

Manual operation

chargig prai

See figure 4.1-4.2: insert the charging handle, and shake it

several times (about 7 times) and it will click. Then the closingspring charging indication changes from white (discharged) to

yellow (charged), showing that it has entered to the charged

state.

clig prai

Press the closing button and the breaker closes. Then, the

closing and trip indication shows "closed"; closing charging

indication shows "white" (discharged).

A Currentandmagneticfield

Inserting hole of

charging handle

Figure 4.1 Manual operation drawing

Trip button

Closing button

Closing and

trip indication

Charging

indication

Figure 4.2 Manual operation indication

Warning

The following operations may cause breaker defects:

Press the closing button under closed position.

Press the closing button while pressing the trip

button.

Electric operation

chargig prai

Connect the control loop of the breaker and power on,

the current motor will rotate and the closing spring begins

charging. When the charging indication changes from "white"

(discharged) to "yellow" (charged), it means the closing spring

has finished charging.

clig prai

After the closing instruction is given out, the closing coil excites

and breaker is closed. After it's closed, the current motor

continues rotating, till the closing spring finishes charging.

The closing and trip indication will show "closed". The closing

spring's charging indication shows "yellow" (charged).

trippig prai

After the tripping instruction is given out, the trip coil excites

and breaker is open. Then, the closing and trip indication shows

"open".

Action specication

Ai rl lp

Note

Do not operate the breaker when the panel

is discharged, in case there are damages and

accidents.

circumstances, if the closing instruction is given out (impose

pressure on +HM-N1 point), the breaker will close when the

closing coil CC excites (about 40ms). When the breaker closes,

the auxiliary switches b5 and b6 switch and closing coil CC

terminates excitation. Then the stabilizer Y excites and forms the

protective circuit of closing and tripping circuit.

Charging action

When the breaker closes, the limit switch closes at the same

time; the control relay X excites and starts the charging function.

After the control relay excites, the charging circuit is switched

on; the current motor M rotates and drives the spring to charge;

after the spring finishes charging (about 4s), the li mit switch LS1-

LS2 breaks, and control relay X terminates excitation.

Tripping action

Only a1, a2 and TC are related to breaker tripping; when

conditions allow, if the tripping instruction is given out (impose

pressure on +FM-N2 point), the breaker will open when the

trip coil excites (about 25ms). When the breaker opens, auxiliary

switches a1 and a2 switch and trip coil TC terminates excitation.

Note: refer to section 5.3 Secondary Schematic Diagram for all

contact points.

DangerousPlease keep off, for fear of casualties due to

electric shock.

Closing action

After the closing spring finishes charging, if the breaker is in

open status and meet the requirements for closing of the

breaker, its control loop is shown in figure 4.3. Under such

1.Whenthelimit switchLScloses,the closingspringbeginscharging

2.Whenthelimit switchLSopens,theclosingspringfinishescharging

3.Closinginstruction; 4.Theclosingactionbegins(thetripspringbeginscharging)

5.Trippinginstruction; 6.Trippingactionbegins; 7.Breakercloses; 8.Breakeropens

Figure 4.3 Control Loop Operation


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High & Lw Vlag swih

Dvi ai

NoteKeep your hands or any part of your body from

the device, for fear of jammed injuries.

Closing action

Figure 4.4 (A) is the illustrative drawing showing the open status

of the breaker, when the closing spring is charging (waiting for

closing). Under such circumstances, press the closing button

or drive the closing wedge through the closing coil, so that the

cam can rotate fast as shown in figure 4.4 (B), that's the closed

position.

Charging action

The breaker is kept at the closed postion as shown in figure 4.4

(B); drive the charging crank handle electrically or manually to

rotate the closing cam and start the charging function. When

the roller on the closing cam touches the closing wedge, it

finishes charging.

Tripping action

Press the trip button or drive the trip axis through the trip coil

and the device will return to the open status as shown in figure

4.4 (A).

ovrall dimi

Low current

1Primaryplug

2Vacuum interrupter

3 Handle

4Counter

5Closingandtripindication

6Insertingholeofcharginghandle

7Secondaryplug

8Springchargingindication9Closingbutton

10Tripbutton

Figure 5.1 Outline Drawing of Low Circuit Breaker

Figure 4.4 Operation of Device

A B


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High & Lw Vlag swih

Product selection sheet

n.

------------------------------------- R-

markMaimdl

sriW. aux.

abiU

Mai dimi Ai-rip

cliglur

Rak-ilur

oupua

oc.rip

earhigmd

elrihaiA B c1 c2 D e F G H J K L M n P W X Y

1VK-

1206B25W650

AC/DC110220

528502494494608 658 44363729828981 71322 304165

35

20189

0: No1:

Yes

0: No1: Yes

0: No1: Yes

0:No1:

Yes

0: bothsides

1:bottom

0: No1: Yes

WithToshibaVENcabinet

2VK-

1212B2549

3VK-

1206B25

W 800 685652638638608 658 44363729828981 71322304200

35

38261

4VK-

1212B25

495VK-

1212B32

6 VK-1212B40

7VK-

1216B4070

8VK-

1220B40

9VK-

1225B40

W1000 880 852836840712 762 472746375284 83 86343387275

109

25362

10VK-

1232B40

11VK-

1240B40

12VK-

1212B5070

13VK-

1232B50109

14VK-

1240B50

15VK-

1206B25

A

W 65 0 5 28 50 24 94 49 4598

(608)648

(658)436

(443)637275280

76(81)

78(71)

322294

(304)150

35

20189

withKYN28/KYN

44cabinet

16VK-

1212B2549

17VK-

1206B25

W 800 685652638638598

(608)648

(658)436(443)

63727528076

(81)78

(71)322

294(304)

210

35

28261

18VK-

1212B25

4919VK-

1212B32

20VK-

1212B40

21VK-

1216B4070

22

VK-

1220B40

23VK-

1225B40

W 1000 880852836840587 637 350

700

310296 85 86343262275

109

25362

24VK-

1232B40

25VK-

1240B40

26VK-

1212B50

746

70

27VK-

1232B50109

28VK-

1240B50

e.g.

Note: 1. Number in the brackets means special models

2. For other models, please contact with the manufacturer

Heavy current

Chassis

Note1:Chooseonefromthetwo groundingmodes

Figure 5.2 Chassis Mechanism

1 Primaryplug

2 Vacuuminterrupter

3 Handle

4 Counter

5 Closingandtripindication

6 Insertingholeofcharginghandle

7 Secondaryplug

8 Springchargingindication

9 Closingbutton

10 Tripbutton

Figure 5.3 Outline Drawing of Heavy Current Breaker

Groundingbusbar

Groundingclamps

attwosides

interlockpl ate


24/49

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High & Lw Vlag swih

VY Vacuum Circuit Breaker (Designated Sales Region)

ovrviw

VY-40 indoor AC high voltage vacuum circuit breaker is mainly

used in three-phase alternating current 50Hz, 40.5kV power

system for opening and closing load current, overload and

short-circuit current; it can be used in the places with frequent

operation, and is suitable for the control and protection in

power plants, transformer substations, power equipment and

power lines.

The breaker adopts spring charging control mechanism and

the operational power supply can be DC or AC, which is very

convenient; the product is characterized by good performance,

high reliability, convenience in repair and maintenance, and

long maintenance interval.

chararii

The breaker adopts the integral ar rangement structure

with the vacuum interrupter on the top and the device at the

bottom, which is convenient for commissioning;

It adopts the compound insulation structure with air and

epoxy material, which is compact in design and li ght in weight;

The inter rupter a dopts l ongitudinal magnetic f ield a rc

extinction, which is of low closure property and fine asymmetric

breaking performance;

Simple spring control mechanism; 10000 times of

maintenance free operation;

It adopts the lead screw propelling device, making it labor

saving, stable, and have good self-locking performance.

Wrkig dii




95%; monthly average value shall not be greater than 90%;

Places: indoor, without fire, inflammables, explosion hazards,

chemical corrosion and sharp vibration


Special requirements can be made in orders.

Mdl dripi

Irdui ruural ui

Structure

VY - 40 indoor AC high voltage vacuum circuit breaker (breaker

for short hereinafter) adopts the vertical arrangement structure,

which effectively reduces the depth of breaker. The breaker

adopts compound insulation structure; the three-phase

interrupter and conductors are separated by three independent

epoxy insulating cylinders. Compound insulation reduces the

size of breaker. With the use of compound insulation structure,

the breaker can meet the requirements of air i nsulation distance

and creeping distance in normal operation. The main galvanic

circle's vacuum interrupter and conductor are installed in the

insulating cylinder, so the inter-phase distance is only 300mm.

Electrical connection of the major loop adopts fixed type

Designseriesnumber

Ratedshort-circuitbreakingcurrent(kA):25, 31.5

Ratedcurrent(A):J:63 0,M:1250,N:1600 ,P: 2000

Ratedvoltage: 40.5kV

Productseries

Vacuumcircuit breaker

connection, which has high reliability.

The loop resistance of vacuum interrupter under rated contact

pressure is less than 50u. :

The control device adopts the spring control mechanism

especially designed for such new style breaker and is fixed inside

the framework. Its design characteristics are more suitable for

such vertical arrangement of the breaker, making it become

an inseparable part of the entire structure of the breaker. The

device is simply designed and its output curve can well meet

the requirements of the interrupter. Its performance can better

fit the characteristics and requirements of 40.5kV vacuum circuit

breaker.

The breaker is generally reasonable in overall arrangement,

delicate in appearance and simple and flexible in operation;

it's characterized by reliable electric property, long service life,

convenient repair and the maintenance free feature. It's suitable

for various places and can be used in the places with harsh

operating conditions.

Circuit breaker outside view

Figure 1 Panel Appearance

Counter

Closingbutton

Tripbutton

Chargingindication

Trippingindication


Specification

Secondaryplugof

controlloop

Handle

Insertingholeof

handle

Operatinginstructi on

forpropellingdevice

Emergencytrip button

Earthinginterlock handle

Primaryplug

Contactarm

Openingpart

Screwrod

Figure 2 Circuit Breaker Appearance


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opraig priipl

Arc extinction principle

The vacuum interrupter for the breaker has high degree of

vacuum. When the dynamic and static contactors are charged

and open when driven by the operating device, vacuum arc

will be produced between the two contactors. Besides, due

to the special structure of contactor, there may be proper

longitudinal magnetic field generated between two contactors.

As a result, the vacuum arc will be diffused and spread uniformly

on the surface of the contactor to be combusted, thereby to

maintain very low arc voltage. When the current reaches zero

naturally, residual ions, electronics and metallic vapor will be

compounded or condensed on the contactor surface and

shield cover within microseconds to extinct the arc; insulation

strength of the medium at the interrupter fracture will be

restored fast to realize breaking. The vacuum circuit breaker uses

longitudinal magnetic field to control the vacuum arc, so it has

powerful and strong ability for breaking current.

Staticc ontactor

Ceramicpackage

Metalbell ows

Shieldcover

Dynamiccontactor

A Current and magnetic field B Internal structure C Conditions at the arc

Action

a) Mr hargig prai

Connect the control loop of the breaker; power on and the

motor will start running. When the discharged and charged

indicationchanges from "discharged" to "charged", the motor

stops. Then the closing spring is charged.

b) Maual hargig praiTake the baffle of the handle inserting hole and insert the

manual charging handle (about 280mm, accessory) to the

inserting hole; shake the charging handle several times (about

seven times) and it will snap and become charged. Note) Times

of action of the operating handle will change along with the

change of action angles.

After the device is charged, the breaker will close as long as it

receives the closing instruction at any time.

Insertingholeof

charginghandle

Figure 3 Manual Operation Drawing

) clig prai

After the device closing spring is charged, such state will be kept

due to the pressure of the wedge. Gusset of the wedge tends

to move in the direction of tripping under the driving force of

the cam roller. Now rotate the closing half shaft clockwise to the

release position (about 20) and the gusset of wedge that keeps

the charging state will run fast clockwise; the charging state will

terminate, and closing spring releases energy fast and drives

the cam to rotate anticlockwise. Meanwhile, the linkage gear

will run to the closing position as driven by the cam to close the

device. Then the travel switch will reset; the motor powers on

and drives the closing spring to charge again, so that the device

is closed and charged.

d) trippig prai

The closed state of device is kept by the gusset and half shaft

of linkage gear. The gusset tends to move along the release

direction under the load of breaker; at such time if the tripping

half shaft is rotated to the release position anticlockwise

(about 20), the gusset will run fast anticlockwise, and thus the

balanced state of linkage gear will be terminated. It will move to

the tripping positin under load and the device is open.

) Ai pifai

Ai rl lp

Closing actionAfter the closing spring finishes charging, if the breaker is in

open status and meets the requirements for closing of the

breaker, its control loop is shown in figure 4.3. Under such

circumstances, if the closing instruction is given out (impose

pressure on +HM-N1 point), the breaker will close when the

closing coil CC excites (about 40ms). When the breaker closes,

the auxiliary switches b5 and b6 switch and closing coil CC

terminates excitation. Then the stabilizer Y excites and forms the

protective circuit of closing and tripping circuit.

Warning

Do not operate the breaker when the panel

is discharged, in case there are damages and

accidents.

DangerousPlease keep off, for fear of casualties due to

electric shock.

Charging action

When the breaker closes, the limit switch LS1 -LS2 closes at the

same time; the control relay X excites and starts the charging

function. After the control relay excites, the charging circuit is

switched on; the current motor M rotates and drives the spring

to charge; after the spring finishes charging (about 4s), the limit

switch LS1-LS2 breaks, and control relay X terminates excitation.

Tripping action

Only a1, a2 and TC are related to breaker tripping; when

conditions allow, if the tripping instruction is given out (impose

pressure on +FM-N2 point), the breaker will open when the

trip coil excites (about 25ms). When the breaker opens, auxiliary

switches a1 and a2 switch and trip coil TC terminates excitation.

Note: refer to the device wiring diagram for the contact points

Action o control loop

1. When the limi t switch LS closes, the closing spring begins charging

2. When the limi t switch LS opens, the closing spring finishes charging

3. Closing instruction

4. The closing action begins (the trip spring begins charging)

5. Tripping instruction

6. Tripping action begins

7. Breaker closes

8. Breaker opens


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thial paramr

1. Primary plug ; 2. Vacuum interrupter ; 3. Handle ; 4. Counter, charging, closing and tripping indication ; 5. Earthing interlock handle

6. Inserting hole of charging handle ; 7. Emergent trip button ; 8. Inserting mouth of crank handle ; 9. Closing and trip button ; 10. Specification

n. Im Ui Paramr valu

1 Rated voltage

kV

40.5

2 R at ed i ns ul at io n le ve l1min power frequency withstand voltage (effective value) 95

Lightning impulse withstand voltage (peak value) 185


4 Rated current A 630 1250 1600 2000

5 4s rated short time withstand current

kA

25, 31.5

6 Rated peak withstand current 63, 80

7 Rated short-circuit breaking current 25, 31.5

8 Rated short-circuit making current 63, 80

9 Rated operating sequence O-0.3s-CO-180s-CO

10 Breaking time ms 60

11 Breaking times of rated short-circuit breaking current time(s) 20

12 Breaking current of single capacitor bank A

630

13 Breaking current of back to back capacitor bank 400

14 Rated operating voltage V AC110/220, DC 110/220

15 Mechanical endurance time(s) 10000

Mhaial aur paramr

thial paramr r hargig mr rl mhaim

n. Im Ui Paramr valu

1 Contactor torque mm 21 1

2 Contactor overtravelmm

4 0.5

3 All owable abrasion thickness of overtrave l contactor 3

4 Average closing speedm/s

0.8~1.2

5 Average trip speed 1.2~17

6 Making time

ms

35-65

7 Trip time 15~22

8 Contactor closing bounce time ^5

9 C lo si ng a sy nc hr on iz at io n o f t hr ee -p ha se c on ta ct or 2

1 0 T ri p a sy nch ro ni za ti on o f t hr ee -p ha se c on ta ct or 2

11 Cushion stroke of buffer mm 71

12 Loop resistance of a ll phases (excl ud ing contact arm) 40

Rad vlag (V) Rad upu pwr (W) nrmal wrkig vlag

DC110/AC110 DC220/AC220 70 85%~110% Rated voltage

thial paramr r lig ad rip il

Rad wrkig vlag (V) DC110 DC220

cil hmi valu a 20c () 27.7 10% 126 10%

cil ur 1700 3880

Rad praig urr (A) 4 2

nrmal wrkig vlag rag Reliable tripping at 65%-120% rated working voltage; no tripping lower than 30% rated working voltage

Li ari

n. nam U

1 Manual charging handle For manual charging of breaker

2 Rocking handle of breaker Rocking in and out of breaker

3 Air socket Connection of the secondary loop of breaker

Prdu vrall dimi


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Wiringdiagramofhedevie

Pakig, rapr, apa hk ad

rag

Packing and transport

VY-40 indoor vacuum circuit breaker is independently packed.

It's fixed to a wooden stand and covered with plastic paper to

prevent penetration of water. During packing and transporting,

the breaker shall be open and the product can't be turned over

or rolled.

Acceptance check upon reception

Check whether the packing is in good condition;

Consult the packing list and check whether the documents,

accessories, and spare parts are complete;

Check whether the technical parameters on the nameplate

of breaker and quality certificate meet the requirements of

ordering.

Storage

The breaker shall be placed in the room that is dry, ventilated,

damp proof, shock-resistant and noxious gas proof. If it's placed

for a long time, spread lubricating oil to the transmission parts

and check whether the environment meets the requirements

regularly.

Weldingpanelof

printedcircuit

1 LX Limit switch LXW18-11 1

2 R4 Resistor RJ-2W-24KQ/6.8KQ 2

3 R3 Resistor RJ-2W-3KD.750Q 1

4 R2 Resistor RJ-2W-12KQ/3KQ 2

5 R1 Resistor R - 2W -1 2

6 RD Fuse BGXP 250V 2A/4A 1

7 C2 Capacitor CL11-600V0.1 m F/400V0.1 [iF 1

8 C1 Capacitor CL11-400V 0.1 M F/200V 0.22 u F 1

9 D1~D5 Diode 1N5407 800V 3A 5

10 FJ Auxiliary relay JQX-13F2 DC110V/48V 1

11 KJ Control relay JQX-13F4DC110V/48V 1

12 FK Auxiliary switch F10-10II/W2 10a10b 113 1WK1~3 Limit switch LXW16-11 DC220V 16A 3

14 HQ, FQClosing and tripelectromagnet

MFH-10 DC220V/110V 2

15 D Charging motor ZYJ55-1A DC220V/110V rev 10r/min torque 24.5NM 1

Iallai ad mmiiig

Inspection beore installation

Afther unpacking, check whether the parts and components

of breaker are complete according to the packing list; check

whether the breaker is wetted and damaged and whether it can

run normally. After the inspection, clean the dust on the surface.

Check the degree of vacuum of the vacuum interrupter using

power frequency withstand voltage method (trip the breaker

and impose power-frequency voltage to the fracture at 95kV/

min). Install the machine after it's qualified in inspection.

Commissioning

Products which are in good condition after unpacking

inspection need no commissioning; only the breakers which

do not meet the technical requirements or whose parts andcomponents are changed need commissioning

First of all, adjust the height of knuckle bearing and oil bumper

at the lower end of the dynamic conducting rod of vacuum

interrupter, so that the vacuum interrupter's contactor torque

can reach the specified value of the specification; Adjust the

nuts on the contactor spring properly so that the contactor

over travel can reach the value specified in the technical

specification; Then check whether all parts of the shaft are


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correctly connected and whether the oil bumper is normal. Finally, adjust the device so that it can operate normally; make sure there

is be no clamping stagnation in manual operation, electro control, energy storage, closing and tripping. After commissioning of the

entire breaker, it shall comply with the parameters listed in table 2.

ZN85-40.5 Indoor AC High Voltage Vacuum Circuit Breaker

Aahm papr

Quality certificate

Factory inspection report

Checklist of attachment spares, parts and accessories

Packing list

Installation and instruction manual

Other relevant documents

ordrig irui

Type of breaker

Quantity

Rated voltage (kv)

Operating voltage (AC / DC)

Rated current (A)

Accessories

Rated short-circuit breaking current ( kA)

ovrviw

ZN85-40.5 indoor AC high voltage vacuum circuit breaker

is mainly used in three-phase alternating current 50Hz,

40.5kV power system for opening and closing load current,

overload and short-circuit current; it can be used in the places

with frequent operations, and is suitable for the control and

protection in power plants, transformer substations, power

equipment and power lines.

The breaker adopts spring charging control mechanism and

the operational power supply can be DC or AC, which is very

convenient; the product is characterized by good performance,

high reliability, convenience in repair and maintenance, and

long maint

vol. 12-high & low voltage switch

Documents