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DIGITAL TRACTION

PROTECTION

AN ISO 9001 COMPANY

ADDR/1MICROPROCESSOR based NUMERICAL INTEGRATED FEEDER PROTECTION MODULE

Features:

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Specially designed for 25KVAC Feeder Protection.

DPR Operation Blocking by Second Harmonic Restrain.

Extremely low burden on CTs & PTs.

Online display of R & X Values.

Continuous, on-line self-diagnostics & report.

RS232 / 485 communication port for remote setting & monitoring.

SIX DIFFERENT PROTECTIONS IN ONE MODULE

Two Zone Digital Distance Protection with Parallelogram Characteristics.

Wrong Phase Coupling.

Instantaneous Over-Current.

Fault Locator Disturbance Recorder.

PT Fuse Monitoring.

Auto Recloser Relay.

-R

RB

+R

RF

XB -X

XF2Zone-2

Zone-1

RXm

O

RCA

WPC Operation

WPC Max. Impedance Limit

WPC Min. Impedance Limit 150

Operation :

A. Digital Distance Relay, Wrong Phase Coupling & PT

Fuse Monitoring.

The high-speed ontroller of the ADDR/1

simultaneously samples the current & voltage signals

through a 12-bit A/D convertor and performs powerful

Digital Algorithms to find out the real & imaginary parts NDof the complex impedance (R & X) and the 2 harmonics

of the current. These R & X values are displayed on the

front panel.

The -c then compares the R & X values with

parallelogram characteristics. In case the impedance

values lie within zone-1 then immediately a trip

command is executed. If the values lie above Zone-1 but

below Zone-2 setting then the trip command is executed

after the time delay.

All parameters are programmable via the front panel

MMI & can be also set from remote location through the

module's RS232 / 485 connectivity.

If the impedance value is within the specified limits & ND 0 0within 2 quadrant and the angle is between 90 to 150 ,

then WPC signal is generated & trip command is

executed.

If the PT voltage is less than 2V for more than 500ms &

CB is in close condition then PT failure Alarm is

generated. If the current signal is above 1.5A then

immediately a trip command is given to the CB.

B. Fault Locator Disturbance Recorder Section.

This independent section of the ADDR/1 has an optically

isolated input, which can be connected to one of the

m

m

-c

contacts of the Master Trip Relay (the same input is also

used for TRIP input to the ARR). This section has a

circular battery backed-up memory, which stores the

voltage & current samples and other relay statuses. As

soon as the opto-input changes the state, this section

latches 10 cycles each of voltage & current samples of

pre-fault & post-fault conditions & also records relay

status & real-time. All this data stored in the non-volatile

memory can be utilised for analysing the fault location,

through a software, loaded on a computer, specially

developed by ASHIDA.

C. Instantaneous Over Current Protection.

This section, having a setting range from 100 to 2000%,

is digitally tuned to the fundamental frequency & is thus

immune to harmonics & spikes generated by

locomotives.

D. Two-Shot Intelligent Auto Recloser Relay.

This section monitors MTR contacts and controls closing

operation of CB. As soon as the C.B. trips on transient

fault, the recloser starts dead time. After dead time,

recloser provides closing command to C.B. The relay

controls the closing command width by monitoring

breaker operation. After dead time the relay starts the

reclaim timer. If another fault occurs with in the reclaim

time then relay goes to lockout position. The relay can be

programmed to perform single shot or two shot

operations. The relay can be reset from lockout condition

either by local key-board or remotely through RC. Relay

intelligently blocks recloser in case fault level is too high

(programmable) or DPR operates in Zone 2(Extended

zone).

CT secondary : 5A AC.

PT secondary : 110V AC.

Auxiliary Supply : 77 – 110 – 135 VDC.

VA burden on CT : < 0.5VA.

VA burden on PT : < 5VA.

VA burden on Aux. : < 20 W.0Operating Temp. : 0 C to +65 C.

Continuous current rating. : 10A.

CT Thermal withstand : 100A for 3 secs.

Continuous voltage rating. : 165VAC.

PT Thermal withstand : 220VAC for 1.0 sec.

Insulation : 2.5KV for 3 minutes between (as per IS3231) all terminals & body.

IR Resistance : > 100MW, as per IS3231.

Control Contacts. : 3NO, for trip & Annunciation & Telemetering.

Control Contacts rating : Make & Carry for 3 secs : 30A & 250V max. Break : 5A @ 250VAC, 50 Hz & coso 0.4, 0.5A @ I220VDC. L/R = 45 ms.

HF disturbance Test : 1.2KV, as per IS8686.

Impulse Test : 5KV peak as per IS8686.

Cabinet : Cutout - 138V X 282H mmDepth - 150 mm

Digital Distance Relay Section

Setting Available : Forward & Backward Resistance Rf & Rb. Forward & Backward Reactance RXm, XF2 and Xb. Tb & RCA.

Operating Time : = 60 ms, for zone1

0

Resistance setting : 0.04 to 60.0

Reactance setting : 0.04 to 60.0W

Range of RCA : 50 to 85

Range for Tb : 0.05 to 0.150 secs.

Min. operating Current : 20% of rated.0Setting Accuracy. : +/- 5% or +/- 1 .

Oprtg Frequency : 47 – 50 – 52 Hz.0 0WPC Operation : For Ð90 <>150 &

impedance 2-6W (LL) & 20-60W (HL) settable

ND2 Harmonics restrain : For more than 15%.

PT Fuse Alarm : For voltage < set limit, formore than 500ms & CB is in close condition.

Reset Time : Less than 60 ms.

Intelligent Auto Recloser Relay

Dead Time 1 : 0.1 to 1.0 secs.

Reclaim Time : 6.0 to 60 secs.

Dead Time 2 : 10 to 60 secs.

Instantaneous OCR

Range : 100 to 2000%, in course & fine.

Operating Time : Within 25ms at 1.5 times of setting.

Characteristics : Tuned to 50 Hz, immune to surges & harmonics.

The Relay conforms to following RDSO specifications.

a) TI/SPC/PSI/PROTCT/3003. (ADDR/1B for Mumbai Area).b) ETI/PSI/141(10/90).

WTechnical Data ADDR/1:

Xm x= Tr + Tb,Rxm ( ( for zone2.

AIDI/1MICROPROCESSOR based NUMERICAL INTEGRATED VECTORIAL DELTA-I MODULE

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Specially designed for 25KVAC Feeder Protection for High Resistive Fault.

Operating / Non-Operating zones are user defined, by means of Reactance (X) Blinder.

OHE Protection against abnormal rate of rise of current, on fault.

Independent contacts for Trip, Annunciation & Tele-Signaling.

nd 2 harmonics restrain for harmonics exceeding 15%.

Special Relay sensitivity adjustment from 0% to 100% for rd3 harmonics restrain above 15%.

Programmable D-I from 1.0A to 6.0A with minimum trip time of 85ms. Additional programmable Time Delay from 0 to 300ms in steps of 10ms.

User Parameters set via front panel push buttons & LCD display.

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Dynamic Display of on-line current, calculated values of impedance (Z), Resistance (R) & Reactance (X), latched value of base current vector, fault current vector & -I vector.

Latching of actual voltage (V) & current (I) waveforms upto 20 cycles. 10 pre-fault & 10 post fault.

Local as well as Remote resetting facility.

Front panel RS232 port for local diagnostics.

Rear panel RS422 / 485 serial port for multi-drop networking for remote monitoring and SCADA operations.

Extremely low burdens on CTs & PTs & Aux. Supply.

Self-diagnostic & self-monitoring with RELAY-OK indication.

Wide range of Auxiliary supply tolerance 77 to 135VDC for 110VDC rated.

The Delta-I relay continuously monitors the OHE current &

voltage through CT & PT inputs. The high speed -controller

of the unit simultaneously samples these current & voltage

signals using two separate A/D convertors for zero phase

difference error. Digital algorithms are performed on the

digitised current & voltage samples to find (a) line impedance nd rd(Z, R,X ), (b) the fundamental and the 2 & 3 harmonics of the

current, & (c) vectorial values of current & voltage, as required

for the operation of the relay.

The tuned band-pass characteristics provide stable and

excellent filter response, rejecting the noise signal.

The range of measured / computed parameters as well as

internal digital flags status are dynamically displayed on a front

panel back-lit dot-matrix 16 character X 2 lines LCD display.

The relay continuously monitors the vectorial D-I. The moment

D-I current crosses the set value, the trip timer starts. During

the execution of the trip time if the X components of complex

impedance remains within the set blinder limit, the relay

executes a trip command.

The Relay allows power transformer charging and also

prevents unwanted tripping when multiple EMUs start at the nd rdsame time in a section. For this, the 2 & 3 harmonic

components of the load current are monitored & the relay is ndappropriately restrained. If the 2 harmonic component goes

more than 15% then the relay blocks the tripping operation. If rdthe 3 harmonics increase beyond 15% of the fundamental,

then the relay internally de-sensitizes the D-I setting by a

factor of 0% to 100% (programmable). The de-sensitised VD-I

can be calculated by following formula.

De-sensitised VD-I setting = V setting * De-sensitivity +

VD-I setting

m

D-I

Operation :

CT secondary : 5A AC.

PT secondary : 110V AC.

Auxiliary Supply : 77 – 110 – 135 VDC.

VA burden on CT : < 0.5VA.

VA burden on PT : < 1VA.

VA burden on Aux. : < 15 W.0 0Operating Temp. : 0 C to +55 C.

Continuous current rating. : 2 times of rated.

CT Thermal withstand : 20 times of rated for 1 sec.

Continuous voltage rating. : 1.5 times of rated.

PT Thermal withstand : 2 times of rated for 1 sec.

Insulation : Between all terminals & body, (as per IS3231) 2.5KV for 3 minutes

IR Resistance : > 200MW, as per IS3231.

Control Contacts. : 2NO, for trip & Annunciation.

Control Contacts rating : Make & Carry for 3 secs : 30A & 250V max. Break : 5A @ 250VAC, 50 Hz & coso 0.4, 0.5A @ 220VDC. IL/R = 45 ms.

Alarm Contacts : 1NO for each Protection.

Tele-Signaling Contacts : 1NO for each Protection.

HF disturbance Test : 1.2KV, as per IS8686.

Impulse Test : 5KV peak as per IS8686.

Reactance Setting : 00.50 to 60.00W in steps (Blinder) of 00.10W.

D-I Vectorial : 1.00 to 6.00A.

De-sensitivity in case of : 0% to 100%.rd3 harmonics detectionnd2 harmonic threshold : 15%rd3 harmonic threshold : 15%

Min. Operating Time : 85 ms.

Additional Delay Time : 00ms to 300ms.

Cabinet : Cutout: 138V X 282H mmDepth: 150 mm

Technical Data :

The Relay conforms to following RDSO specifications.

a) TI/SPC/PSI/PROTCT/3003. (For Mumbai Area).

b) TI/SPC/PSI/PROTCT/1981.

The ARTUVF/S unit is specially designed to suit relay-testing

requirements of power station testing engineers. The ARTUVF/S is

designed to give maximum numbers of functional units in single

cabinet. It has all necessary functions for relay testing viz. auxiliary

power supply, variable current source up to 200A, Variable voltage

source, Time Interval Meter up to 1ms resolution etc. After adding

optional phase shifter and phase angle meter, the ARTUVF/S

become a complete relay-testing unit for testing of all available static/

Electromechanical TSS relays, like IDMT Over Current (OCR-

1/2/3),/ REF/ Under- Over Voltage / Power - Directional /Distance

Protection (DPR,WPC)/ Delta-I Protection / Auxiliary relays etc.

ASHIDA RELAY TESTING KIT ARTUVF/S

Features:

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Specially designed for traction OHE protection.

Logic as per Latest RDSO specs TI/ SPC/PSI/ PROTCT / 2983 &3003.

Programmable logic.

Can Detect Feed extension condition and get bypassed automatically.

Advance micro-controller based design.

Continuous monitoring of module's internal hardware and alarm generation in case of failure of any critical components.

RS-232 and RS485 digital serial interface for remote monitoring and SCADA operation.

When ever one of the section of insulating over-lap (IOL)

is tripped on fault, and an electric train enters from live to

dead section of the FP IOL, there may be a heavy flash

over, particularly when the Panto leaves the IOL. This

leads to damage of the Panto. The extent of damage

Operation:

ASHIDA PANTO FLASH OVER PROTECTION RELAY FOR RAILWAY TRACTION

Features:

APFO/1depends upon the intensity of current drawn by the

locomotive. The Ashida Panto Flash Over Relay (APFO/1) is

designed to identify such situation and trip the feeder circuit

breaker connected to the live side of the overlap.

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Variable AC current: - 0-200 AMP with 250VA.

Variable AC voltage: - 0-300VAC.

Variable DC voltage: - 0-360VDC.

Variable Phase angle - 0 - 360Deg.

In- built auxiliary power supply: - 30 / 110 / 220 V DC.

Fix AC voltage for direction / power relay testing: - 63.5V AC / 110V AC.

Micro- controller based time measuring unit with 1ms resolution.

Special provision for relay's ON Delay / OFF Delay time measurement.

A-308. Road No.21, Wagle Industrial Estate, Thane-400604. INDIATel: 91-22-6599 1076 / 77 / 78, 2582 7524 / 25 / 26

Fax: 91-22-2580 4262 Email: sales@ashidaelectronics.comwww.ashidaelectronics.com

DATA CAPTURE AND ANALYSIS SOFTWARE FOR ADDR/1 RELAY ADDRFL

Impedance Analysis

Harmonics Analysis

View and change the setting remotely (Through TPC)

Analyzed fault—Peak Current, Drop in voltage

Viewing actual wave form at the time of fault.

Ashida Numerical Relays (ADDR/1, AIDI/1 etc) are

equipped with a special relay monitoring hardware. Which

continuously monitors voltage and current samples, and

latched waveforms whenever master trip relay contacts give

command to CB. This section latches total 20 cycle date (10

pre-fault and 10 post fault). Total 10 such records can be kept

in to memory. The Analysis Software, ADDRFL can be used

to do diagnostic anaylsis of any tripping operation. Further,

this data can be exported to fault locator software to locate

the actual fault location, considering dynamic conditions, like

positions of different BMs, at SSPs & SPs. The relay is

capable to be connected to the SCADA system through

RS485 or RS232 communication link and all the relay

operation can be monitor at remote TPC.

RDSO approved ASHIDA Static Protection Relays.

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Single Pole High Speed Biased Differential Relay.

IDMT O/C Relay with Inst. Tripping (OCR1-HV side).

IDMT O/C Relay (OCR2 LV side).

Restricted E/F Relay (HV & LV side).

Inst. High Speed O/C Relay (OCR3).

High Speed Auto Recloser Relay (ARR).

IDMT Single Pole OCR for Shunt Capacitor.

Unbalance current protection (NCT).

Static Inverse Time U/V Relay.

Static Inverse Time O/V Relay.

Definite Time Delay Relay.

Auxiliary Relays for Transformer / Feeder / Capacitor

Bank Protection.

AN ISO 9001 COMPANY