HMS Medium Voltage Air-Insulated

Metal-Clad SwitchgearInternalArc-Resistant

ANSI/IEEEC37.20.2andC37.20.7

HMS series, HYUNDAI Medium Voltage Air-Insulated Metal-Clad Switchgear, provides various

benefits with its safe, reliable features, and compact design.ANSI/IEEE C37.20.2 and C37.20.7

4 / HYUNDAI ELECTRIC

HMS series, Built by Hyundai Electric & Energy Systems Co.,Ltd ISO90001 facilities.Designed in accordance with ANSI/IEEE C37.20.2.

Metal-Clad Switchgear

Characteristics

ApplicationUtility and Power Plants• Transforming stations• Switching stations • Power generation stations• Main and auxiliary switchgear

Industry• Chemical industry • Petroleum industry• Iron and steel works• Automobile industry• Oil and gas pipelines• Textile, paper and food industries• Rolling mills

Marine• Drilling rigs• Offshore flatforms and FPSO• Container ships• Passenger ships• Tanker ships• Bulk ships

Services and Transport• Shopping malls• Hospitals• Large infrastructure and civil works• Airports, ports

Features• Functional compartments separated by metal grounded partitions• Draw-out circuit breaker construction• Integral breaker racking mechanism with self-aligning and self-coupling primary and secondary disconnecting device • MOC (Mechanism operated cell) and TOC (Truck operated cell)• All parts easily accessible, minimum of maintenance• Simple and flexible design • Easy installation• Breakers interlocked to prevent sliding into service position from test position, and vice versa while in the closed position• Low voltage compartment to accommodate instruments, meters, and relays• Main busbar system, fully insulated, housed in isolated compartment• Dedicate voltage transformer section mounted on withdrawable truck

HYUNDAI ELECTRIC / 5

Construction

VT or CPT

Low VoltagePanel

1,200 ACircuit

Breaker

VT or CPT

Low VoltagePanel

2,000 ACircuit

BreakerVT or CPT

VT or CPT

Low VoltagePanel

VT or CPT

Low VoltagePanel

3,000 A (4,000 A)Circuit

BreakerVT or CPT

Low VoltagePanel

3,000 A (4,000 A)Circuit

Breaker

Low VoltagePanel

1,200 ACircuit

Breaker

2,000 ACircuit

Breaker

Low VoltagePanel

1,200 ACircuit

Breaker

2,000 ACircuit

Breaker

VT or CPT

Low VoltagePanel

2,000 ACircuit

Breaker

Low VoltagePanel

1,200 ACircuit

Breaker

1,200 ACircuit

Breaker

VT or CPT

Low VoltagePanel

1,200 ACircuit

Breaker

Low VoltagePanel

1,200 ACircuit

Breaker

2,000 ACircuit

Breaker

101" (Extended)

91" (Standard)

101" (Extended)

91" (Standard)

1,200 A or2,000 A

1,200 A or2,000 A

Arc Relief Ducts (Option)

3,000 A

Arc Relief Ducts (Option)

Typical Section Views

Typical Compartment Arrangements

6 / HYUNDAI ELECTRIC

Construction

Metal-Clad Switchgear

Voltage(kV)

Power frequencywithstand, 1 min.

(kV rms)

Impulse withstand (kV peak)

Rated current(A)

Short-timewithstand current

3 sec. (kA rms)

Momentarywithstand current

(kA peak)

Internal arcwithstand

current

4.76 19 601,200, 2,000

3,000, 4,000 (FC)50 130 50 kA/0.5 sec.

15 36 951,200, 2,000

3,00040 104 40 kA/0.5 sec.

38 80 1501,200, 2,000

3,00040 104 40 kA/0.5 sec.

Special ToolsSpecial tools are supplied• Hand crank for breaker trucks• Manual charging handle for circuit breakers• Trolley for breaker truck removal

Operating ConditionsSwitchgear is intended for use under normal indoor conditions:• Ambient temperature 40 ˚C max.• Altitude 3,000 ft above sea level max.• Relative humidity 95 % max.

Switchgear for special operating conditions is available - Please consult with factory

Accessories and OptionsAll switchgear can be customized for specific applications and requirements. Some of the available options are:• Voltage transformers• Current transformers• Zero sequence current transformers• Protective relaying• Space heaters• Meters• Controls and control indicators• Remote control and mimic panels• Surge absorber

※ The (FC) means that the fan cooling is used in the switchgear and 4,000 A fan cooled rating is achieved using a 3,000 A circuit breaker.

Electrical Characteristics

Rated voltage (kV)

Width (inches)

Depth (inches)

Height (inches)

Approximate weight (lbs.)

4.76, 15 36 91 95 4,000

38 42 129 95 5,000

Cubicle Dimensions

HYUNDAI ELECTRIC / 7

Vacuum Circuit Breakers

Vacuum circuit breaker Breaker cradle and shutters in switchgear breaker cell

ANSI/IEEE C37.06 and C37.09

Voltage(kV rms)

MVAthreephase

Continuouscurrent

(A)

Max.voltage

(kV rms)

Lowfrequencywithstand(kV rms)

Impulsewithstand(kV peak)

Interruptingsymmetrical

(kA)

Short-timewithstand

current3 sec.

Close andlatch

(kA rms)

Interruptingtime

(Cycles)

4.16 350

1,200,2,000,

3,000, 4,000A (FC)

4.76 19 60 50 50 78 3

13.8 1,0001,200,2,000,3,000

15.0 36 95 40 40 62 3

33 2,0001,200,2,000,3,000

38.0 80 150 40 40 62 5

Electrical Characteristics

Nominal control voltage

Spring charge motor

Closing coil

Tripping coil

48 V DC 36-56 36-56 28-56

125 V DC 100-140 100-140 70-140

250 V DC 200-280 200-280 140-280

120 V AC 104-127 104-127 104-127

240 V AC 208-254 208-254 208-254

Operating Voltage Range

Bundang Office 5F,55,Bundang-ro,Bundang-gu,Seongnam-si,Gyeonggi-do,Korea

(Sales&Marketing) Tel:82-31-8006-6640 Fax:82-31-8006-6897

Ulsan 700Bangeojinsunhwan-doro,Dong-gu,Ulsan,Korea

(Factory) Tel:82-52-202-8114 Fax:82-52-202-8100

Atlanta 6100AtlanticBoulevard,Norcross,GA30071,USA

Tel:1-678-823-7839 Fax:1-678-823-7553

Frankfurt MendelssohnStrabe55-59Frankfurt60325,Germany

Tel:49-69-4699-4988

Moscow WorldTradeCenter,Ent.3#703,KrasnopresnenskayaNab.12,Moscow,123610,Russia

Tel:7-495-258-1381 Fax:7-495-258-1382

Osaka I-Room5thFloorNagahoriPlazaBldg.2-4-8MinamiSenba,Chuo-ku,Osaka,542-0081,Japan

Tel:81-6-6261-5766~7 Fax:81-6-6261-5818

Bangkok 19thFloor,Unit1908,SathornSquareOfficeTower,98NorthSathornRoad,Silom,Bangrak,Bangkok,10500Thailand

Tel:66-2-115-7920

Riyadh OfficeNo.230,2ndFloor,4thAkariyaPlaza,OlayaStreet,POBox8072,Riyadh11485,SaudiArabia

Tel:966-11-464-4696 Fax:966-11-462-2352

Al Khobar 7thFloor,AlKhobarBusinessGateBuildingPOBox20753,AlKhobar-31952,KingdomofSaudiArabia

Tel:966-013-849-3876~7

Dubai Unit205,Building4,EmaarSquare,SheikhZayedRoad,Pobox252458,Dubai,UAE

Tel:971-4-425-7995 Fax:971-4-425-7996

Sofia 1271Sofia41,RojenBlvd.,Bulgaria

Tel:359-2-803-3200,3220 Fax:359-2-803-3203

Alabama 215FolmarParkway,Montgomery,AL36105,USA

Tel:1-334-481-2000 Fax:1-334-481-2098

Yangzhong No.9XiandaiRoad,XinbaScientificandTechnologicZone,Yangzhong,Jiangsu,P.R.C.Zip:212212,China

Tel:86-511-8842-0666,0500 Fax:86-511-8842-0668,0231

www.hyundai-electric.com

HEES-SE-B42-01,2018.1Designedbydesignwat