ashida numerical single pole type: oc/ef protection relay...

Note: Due to our policy to upgrade our products constantly, we reserve the right to supply products which may varyslightly from that indicated above.

ASHIDA ELECTRONICS PVT LTD.Plot No. A-308, Road No. 21,

Wagle Industrial Estate,Thane (W)-400 604. INDIA.

E-mail: [email protected]: www.ashidaelectronics.com

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Type:ADR211A

(ADITYA Series)(Preliminary)

Features:• Single Element EF IDMT with instant trip.

• Back - lit LCD display for settings.

• Display of fault current / Load current.

• Selection of Curve: Six selectable curves(Normal Inverse 1 (C1), Normal Inverse 2(C2), Very Inverse (C3), Extremely Inverse(C4), Long Time Inverse (C5) & DefiniteTime (C6).

• Design using DSP technology.

• Latching of fault current up-to last 5 fault.

• Password protection for setting.

• Site selectable CT secondary (For ModelAM00x02/x03)

• Relay can be made either IDMT orDefine time.

• Programmable operating time ininstantaneous element

• Breaker Fail Function (For Model AM00x02/x03)

• Suitable For REF Protection (AM002xx)

• SCADA Compatibility (RS232 and RS485 Communication For model ADR211A)

General:The ADR211A is member of Ashida Numerical Communicable Relay family (Aditya Series) designto meet demand of low and medium switchgear control. The ADR211A is single pole OC/EF relaywith Instantaneous high set and programmable output to simplify feeder protection wiring. TheADR211A continuously monitors earth current, through CT connections. The high-speed micro-controller samples this current through a 12-bit A/D converter. The micro-controller performspowerful Digital Algorithms to find out Amplitude of current signal, and then this value is use forprotection and metering function. All measurement is tuned to fundamental frequency. Each inputcurrent is also displayed on 16 x 2 LCD display for metering. The Relay is having main threefunctions 1) Protection 2) Self-Supervision 3) MeasurementThe Relay can be supplied with different model. It can be either Definite Time or IDMT.1. Protection Functions:

The ADR211A give maximum benefit/cost ratio. The ADR211A give all the advantage of numericalrelay at affordable cost. Following is summery of different protection functions provided by relay.

ANSI IEC Protection Functions

∗ 50/50N IP / IE>> Instantaneous Earth Fault Protection (OC/ EF-Inst.)

∗ 51/51N IP >t / IE>t, IEP Time Over current Protection (OC/ EF-IDMT.)

∗ OC of EF Function to be specified

ASHIDA Numerical Single PoleOC/EF Protection Relay

ASHIDA

ADR211A





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Type:ADR211A


1.1. Protection Function:

The ADR211A has single element (OC/ EF). The tripping current can be set from 5% to80% (for EF) or 50% to 200% (OC) in steps of 1% by Keys switch provided on front panel.The unit has selection of IDMT characteristic of International IEC standard, Very inverse /Extremely Inverse / Long Inverse and Standard Inverse (3.0 sec, 1.3sec, 1.5 Sec, 0.8 sec& 13.3 sec at 10 times). The unit also has Time Multiplier Setting (TMS) from x0.01 tox1.0 for IDMT delay multiplication. The instantaneous tripping function is having range of100% - 1200% for EF or 200% 3000% for OC and can be set in steps of 100%. The highspeed CPU continuously monitors the current input and compares with IDMT as well asinstantaneous setting. If current is above instantaneous setting the relay providesimmediate trip command bypassing IDMT delay. If is input current is less thaninstantaneous setting but more than IDMT setting, CPU calculate IDMT delay as perselected IDMT characteristic multiply it with TMS setting and provide trip command if faultis persist even after this time delay.

All the settings are password protected to prevent unauthorised change.The relay is available in verity of model for different applicationAM001xx are OC relay for time graded feeder protectionAM002xx are EF relay for time graded feeder protection

The xx specify the back terminal lay out.

1.2 Breaker Fail Contact:After the tripping operation of relay, if the current does not become Zero within the set BFdelay then breaker failure contact will get operated.For Model: AM 00x03 Breaker Fail contact is provided.

2.0 Supervision Function: -2.1 Self-supervision: -

The continuously keeping track on its internal hardware and the movement it detect any failureof any component, it give message on LCD display, This feature is very useful to give preinformation to avoid any mall - operation. In such situation it uses some default setting andremains in protection mode.

3.0 Measurement Function:In normal condition this display shows all settings. Via keyboard the display can be program toshow the actual current flowing through the relay. If current excesses set value the relay givestrip command. The type of fault is displayed on LCD display.During the fault condition the relay measure the fault current and store in non-volatilememory. The fault current can be read via keyboard on LCD display Last 5 fault valuesalong with tripping counter can be view via key-board. All settings are save in Electricallyerasable read only memory and remain.





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Type:ADR211A


4.0 Ordering Information:While Ordering Specify the fol lowing Information for ADR211A Relay

PT Secondary0

Auxiliary Supply01 = 18 – 52 V dc02 = 77 – 250 V dc03 = 110 VAC04 = 230 VAC05 = 60 VDC

Reserved for Future Use

CT Secondary1 = 1 Amp.2 = 5 Amp.3 = 1 Amp. / 5 Amp. Selectable

D e f i n i t i o n o f M o d e l N o o f A d i t y a S e r i e s o f R e l a y s

A M X X X – X X – X – X – X X – X

AM XXX XX Description X

OC Relays

001 01 Relay with Fix CT.Setting – 50% - 200%

Inst - 200% - 3000% or bypass

CSA – 150 1 / 2

02 Relay with Breaker Fail Contact & with Siteselectable CTSetting – 50% - 200%

Inst - 200% - 3000% or bypass,

CSA – 150 3

03 Relay with Breaker Fail Contact, D15 Connector forTesting Facility, RS485 Connector for SCADA &Site Selectable CT.

CSA – 150 3

04 Relay without extra contacts, Fix CT. CSA – 150D Drawout 1 / 2

05 Instantaneous OC with Fix CT ( designed forRailway) Ref. Other catalog.

CSA – 150D Drawout 1/3

EF Relays

002 01 Relay with Fix CT. CSA – 150 1 / 2

02 Relay with Breaker Fail Contact & with Siteselectable CT,

CSA – 150 3

03 Relay with Breaker Fail Contact, D15 Connector forTesting Facility, RS485 Connector for SCADA &Site Selectable CT.

CSA – 150 3

04 Relay without extra contacts, Fix CT. CSA – 150D Drawout 1 / 2

05 Site selectable CT. CSA – 150D Drawout 3





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Type:ADR211A


Ordering information:

A D R 2 1 1 A - A M - X X X - X X - X - X - X X - X

ExampleADR211A – AM-001-01-1-0-02-0Type : ADR211ABack Terminal Layout : Relay with Fix CT.Cabinet Type : CSA-150 non DrawoutAuxi l iary Supply : 77-250Vdc CT sec : 1 Amp.

5.0 Technical Specifications:

Sr.No.

Specification Particulars

I. For Model AM001-01-xxxxx: ModelAM00101xxxxx

Fix CT 1A or 5A specify wihile orderingInputs

: ModelAM00102xxxxx &AM00103xxxxx

Suitable for CT secondary 1.0 Amp or 5.0 Amp.(Selectable)

: Setting For OC 50% - 200%: Operating Time Normal Inverse 1 (C1)

Normal Inverse 2 (C2)Very Inverse (C3)Extremely Inverse (C4)Long Time Inverse (C5)Definite Tme (C6) 00(Inst) – 99.9Sec

: Inst. Setting 200% - 3000% or bypass

Protection RelaySetting Range

: Inst Operating Time 0.05 – 1.00SecOutput contacts : Model AM00101 2 NO Trip duty contact for Alarm and Trip

: Model AM00102 &AM00103

2 NO Trip duty contact for Alarm & Trip and 1 NOcontact for Breaker Fail.

II. For Model AM002xxxxxxx: ModelAM00201xxxxx

Fix CT 1A or 5A specify wihile orderingInputs

: ModelAM00202xxxxx ,AM00203xxxxx &AM00205xxxxx

Suitable for CT secondary 1.0 Amp or 5.0 Amp.(Selectable)

: Setting For EF 5% - 80%: Operating Time Normal Inverse 1 (C1)

Normal Inverse 2 (C2)Very Inverse (C3)Extremely Inverse (C4)

Protection RelaySetting Range

Long Time Inverse (C5)





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Type:ADR211A


Definite Tme (C6) 00(Inst) – 99.9Sec: Inst. Setting For EF 100% - 1200% or bypass: Inst Operating Time 0.05 – 1.00Sec

III. Pickup Current : Within 1.1 times of set current value.

IV. Resetting Current : Within 90% of set value.

V. Time Accuracy : Within class 2.5 As per IS: 3231.

VI. Burden on CTs : Less than 0.2VA.

VII. Aux. Supply : 18 - 52VDC or 77 - 250VDC. To be specified while ordering.

VIII. Burden on Aux.Supply

: Less than 10VA on any supply.

IX. Contact Rating TripDuty

: Make and carry for 3sec. – 7500VA with max. 30A & 660VAC/DC: Make and carry for continuous - 1250VA with max. 5A & 660VAC/DC: Break AC - 1250 VA DC - 100 W resistive 50W inductive.

X. Operational Indicators (Flags)ON : Green LED indicates Relay OK

: In case of following condition led become OFF1. Problems in relay Hardware.2. Auxiliary supply is not sufficient for relay operation.

FAULT : Red LED’s indicates the relay trip, Hand Reset (HR) Type.PKP : Red LED indicates relay Pickup.TRIP : Indicates that Trip pulse is being executed. When BYPASS P.B. is

pressed, actual trip is not executed.

XI. Thermal WithstandCapacity

: 40 times the normal current for 3sec.

: 2 times Continuous

XII. High Voltage Test : IEC 60255-5: Except DC Voltage – 2.0 kV (RMS), 50Hz: Only DC voltage – 2.8 kV DC: Between Open contact of TRIP / CLOSE 1.5kV (RSM) 50Hz: Between Open contact of ALARM – 1kV (RSM) 50Hz

XIII. Impulse VoltageTest (all circuit class– III)

: IEC60255-5: 5kV (peak) 1.2 / 50us, 0.5 J, 3 positive and 3 negative impulse atinterval of 5 sec

XIV. High Frequency test : IEC 60255-22-1, Class III: 2.5 kV (peak) 1MHz , τ = 15µs 400 surges / s duration 2 s

XV. Electro staticDischarge

: IEC 60255-22-2 Class III and IEC 61000-4-2 class III: 4kV/6kV contact discharge, 8kV air discharge, both polarities 150pF, Ri330 Ω

XVI. Irradiation with radiofrequency field,pulse-modulated,

: IEC 60255-22-3 and IEC 61000-4-2 class III: 10V/m; 80 to 1000MHz; 80%; 1kHz AM

ashida numerical single pole type: oc/ef protection relay...

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