ref 601 technical presentation rev4_2

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Technical Presentation:REF 601

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-09Product Organisation

� Production & Sales: INABB

� Quality� Local: Distribution Automation (Italy) S. Vitali

� Global: Distribution Automation (India)I. Jadhav

� Customer care (level support 2)� Local: Distribution Automation (Italy) Green Number

� Level support 3� Global: Distribution Automation (India) I. Jadhav

� Level Support 4� Global: Research Center (India) V. Shah

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-09Reference Literature

� Menù Navigation Document:

� User Manual

� Product Guide

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-09Introduction

� Key aspects� Rogowsky sensor based Phase

current measurements

� Product variants suitable for� CEI application ( IDMT and

DMT)

� Other : IEC application (IDMT with Belgium curves,DMT)

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-09Applications

Protection function IEC symbol

ANSI code

Three Phase, Low set over current with definite minimum time or Inverse definite minimum time (IDMT) characteristic

I> 51

Three Phase, High set over current protection with definite minimum time characteristic

I>> 50

Three Phase, Very high set short circuit protection with instantaneous trip

I>>> 50

Low set Earth fault protection with definite minimum time or Inverse definite minimum time (IDMT) characteristic

Io> 51N

High set earth fault protection with definite minimum time characteristic

Io>> 50N

� Fundamental usage of REF601 is in Rogowsky Sensor integrated switchgear

� Protection functions as listed below

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-09Product Features� Over current and earth fault protection with IDMT and DMT curves

� Rogowsky input for phase current

� Wide phase current input range (0 - 25000A)

� Nominal system current selectable as 40A, 80A, 250A and 1250A (for CEI version it is 250A only)

� 2% Accuracy for display current (0.2In to 1.2In)

� Earth current measurement : Internal or External (for IEC version only)

� HMI with keyboard and display (2 x 16 LCD)

� Product configuration through� CoT interface: Proket test system

(Only for production support and for Service purposes)

� Manual by HMI (Display and keyboard)

� Wide operaing temperature range: -25ºC to 70ºC

� Event recorder with recorded period -100mS to 200mS

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-09Product Features

� Four Binary input with wide input range (24V- 240V AC/DC)

� Three potential free Binary outputs with two extra for breaker control

� Universal power supply (24V- 240V AC/DC)

� Trip circuit: � Trip duty relay (Close Contact opens at trip)

� Optional communication feature with MODBUS- RTU

� Non repairable product

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-09Product overviewTypical Interface for REF601 : NO contact based trip ckt

IRF

Io> Io>> I> I>>I>>>

1

1

BI: BreakerCloase

BO: PhaseO/C trip Ip

BO: Unitready

TripOutput

REF 601

Aux. Supply24 - 240V AC/DC

BI: BreakerOpen

BI: RemotecontrolBI: Reset

BO: EarthO/C trip Io

Breaker control I/Os

BO: BreakerOpen

1

BO: BreakerClose

1

CoTinterface

TX

RXG

COT

1

XK9 1234-VEN/C +VEE

XK2

XK2

XK2

1

2

3

4

5

6

XK101

2

XK2XK278910

XK112

XK134

XK412

XK434

N

SensorSensor

SensorSensor

SensorSensor

I1

I2

I3

CT

Io

Rogowskysensor

XK6

XK7

XK5

XK8

1

2

4

54

54

5

Com. interface

OptionalCommunication(MODBUS/RTU)

XK3 12345

A+ A- IG B+ B-

Note:Contact status shown for Normalenergized condition

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-09Product overviewSignaling diagram : REF601

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-09Product overview

Functional block diagram : Cougar 1 (REF 601)

I1

I2

I3

Digital section

LEDdriver

EMI filterand

Internal CT

Push-buttoninput

sensingLCDdriver

Communicationblock (Optional)

Phase current

Current signalprocessing

BO: Phaseovercurrent

tripped

Trip relay Trip output

Digital output(Unit ready/ IRF)

Digital output(Io> or Io>> trip)

Display

COT

LEDs

Trip Io

StartReady

Push buttons

Breakerclose

BO: Earthovercurrent

tripped

BO:Breakerclose

Earthcurrent

Io

Breakeropen

Trip Ip

Aux.supply

Aux. supplygeneration

BI:RemoteOpeningcontrol

BI:Resetinput

Digital output(I>, I>> ori>>>trip)

Digital output(Breaker close)

Digital output(Breaker open)

BO: Breakeropen

BO: Contactunit ready

Binary inputs(Remote control)

Binary inputs(Reset)

Binary inputs(breaker Open)

Binary inputs(breaker closed)

Trip

BI: BreakerOpen

BI:BreakerClose

I1' I2' I3'

SensorSensor

SensorSensor

SensorSensor

Optional Comm. interface

Earth

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-09Product Variants

W/o Com.Com. Communication

PS (Normal)Power supply

Trip (NO contact, On trip opens)Trip circuit

REF 601Basic relay type

21Product Variants

� Hardware variants based on

� Optional Communication feature

� No variant based on software but following parameter to be configure through menu for IEC

� Nominal system current

� Earth measurement Internal / External

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-09Component Variants� Hardware variants based on

� Optional Communication feature

� No variant based on software but following parameter to be configure through menu for IEC

� Nominal system current

� Earth measurement Internal / External

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-09Protection setting range (IEC version)

Protection function

Setting range

I> (IDMT/DMT) 0.2 to 1 In in step of 0.025 with excludable option K 0.1 to 1.6 in step of 0.1

0.1 to 1.6 in step of 0.1 (for curve DT ) t> 0.5 to 8.0 in step of 0.5 (for curve DT B=5)

I>> (DMT) 1 to 2.75 In instep of 0.25 with excludable option t>> 0.1 to 0.45 sec in step of 0.05 I>>> (Inst.) 2 to 15 In instep of 1 with excludable option Io>* (IDMT/DMT) 0.05 to 1In in step of 0.05 with excludable option Ko 0.1 to 1.6 in step of 0.1

0.1 to 1.6 in step of 0.1 (for curve DT) to> 0.5 to 8.0 in step of 0.5 (for curve DT B=5)

Io>> (DMT) 0.5 to 4 In instep of 0.25 with excludable option to>> 0 to 0.75 sec in step of 0.05 sec

* Io> : 0.05 to 1 In in-step-of 0.05 when External Earth is selected. * Io> : 0.2 to 1 In in-step-of 0.05 when Internal Earth is selected.

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-09Protection setting range (CEI version)

Protection function

Setting range

I> (IDMT: VI) 0.2 to 1.2 In instep of 0.05 with excludable option k 0.1 to 1.6 in steps of 0.1 I>> (DMT) 0.2 to 5 In instep of 0.1 with excludable option t>> 0.05 to 1 sec in step of 0.05 I>>> (DMT) 0.8 to 15In in step of 0.2 with excludable option t>>> 0.05 to 0.2 in step of 0.05 Io> (DMT) 0.025 to 0.5In in step of 0.0125 with excludable option to> 0.05 to 1in step of 0.05 Io>> (DMT) 0.25 to 12.5In in step of 0.25 with excludable option to>> 0.05 to 0.2 in step of 0.05

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-09Over all Hardware

� Power supply Wide range 24 - 240 V DC / AC

� Analogue inputs� 3 Sensor inputs for phase

� 1 CT input for E/F

� Binary input / output� 4 binary inputs

� 6 binary outputs

� Communication (optional)� MODBUS RTU on RS485

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-09Analog inputs

-VEN/C

Aux. Supply+VEE

N

SensorSensor

SensorSensor

SensorSensor

I1

I2

I3

CT

Io

Rogowskysensor

� 4 Analog current inputs ( I1, I2, I3, Io)

� Three phase current signals from Rogowsky sensor� Rogowsky type:

� 150mV/250A @50Hz

� Nominal system currents: 40A, 80A, 250A and 1250A (for CEI 250A only)

� Measurement range: 0 to 20In

� Earth current input from CT� Nominal input current 1A

� Measurement range: 0 to 5In (IEC)

� Low burden(<0.1VA @1In) on external Earth CT

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-VEN/C

Aux. Supply+VEE

N

SensorSensor

SensorSensor

SensorSensor

I1

I2

I3

CT

Io

Rogowskysensor

Power supply

� Self adjusting switching mode supply with wide input range

� Universal supply : � Range: 24 – 240V AC/DC

AC : -15% / +10%

DC: -30% / +20%

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-09Binary input

� Universal input � 24 – 240V AC/DC

AC : -15% / +10%

DC : -30% / +20%

� Electrical insulation� 5kV pulse

� 2kVrms

� Binary inputs :� Reset

� Remote Opening control

� Breaker close

� Breaker open

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IRF

I> I>> Io> Io>>

I>>>

1

1

1

BI: Breaker


BO: Unitready

TripContactRelay


Only in REF 601: Breaker control I/Os

BO: BreakerClose

YC

1

BO: BreakerOpen

YO1

1

Binary output

� Three signaling outputs with two extra for breaker control � Remote operating control

� Trip signaling: Phase over current trip Ip

� Trip signaling: Earth over current trip Io

� Breaker control outputs

� Contact specification� Rated voltage: 240V AC/DC

� Max switching: 1500VA (AC resistive load)

� Current: 6A @ 250V AC

� DC Breaking (L/R=40mS):� 0.15A@220VDC

� 4A @30VDC

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IRF

I> I>> Io> Io>>

I>>>

1

1

1

BI: Breaker


BO: Unitready

TripContactRelay


Only in REF 601: Breaker control I/Os

BO: BreakerClose

YC

1

BO: BreakerOpen

YO1

1

Trip output

� Trip duty outputs

� Contact specification� Rated voltage: 240V AC/DC

� Max switching: 2000VA (AC resistive load)

� Current: 8A@24VDC

� DC Breaking (L/R=40mS):� 0.2A@220VDC

� 5A @30VDC

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SensorSensor

SensorSensor

SensorSensor

EMI Protection: Galvanic Isolation >2kV

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-09REF601 : HMI

Navigation buttons

ESC button

CB Control buttons

2 x 16 characterLCD Display

Phase fault and Earth Fault Indications

Three dedicated LEDs: Ready, Start,Trip

Enter button

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-09Breaker Control Function

� Breaker Open command� Command inputs

� PB or BI BO or comm. bard

� Trip out put & Binary output (trip 2) activation: 200mS

� Breaker close command� Command inputs

� PB or BI BO or comm. Bard

� Binary output (BC) activation: 200mS

� Remote Open command� Command inputs

� Binary input : Remote Opening control

� Trip out put & Binary output (trip 2) activation: 200mS

Breaker control PB

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-09Protection function: IEC version

1). Reset protectioncounters.2). Start protection ifcurrent > threshold.3). Continue with latchcondition as set by Trip1.

1). Generate TripCmd output pulse.

2). Generate BreakerOpen output pulse.

1). Eventlog/DatalogCapture NOT required.2). LCD, LED, signaling

contacts (Ip,Io) to be keptas set with previous Trip1

image.

ProtectionStart

1). Eventlog/DatalogCapture.

2). LCD, LED,signaling contacts

(Ip,Io) enabled.

Trip1 occurshere

50 200 70 50 200 70

Trip2 occurshere

1). Generate TripCmd output pulse.

2). Generate BreakerOpen output pulse.

Save Relay status(Phase tripped orEarth Tripped] to

EEPROM

DO NOT save Relaystatus (Phase or Earthtripped] to EEPROM.Keep status as set by

Trip1.

t (mS)

1). Reset protectioncounters.2). Start protection ifcurrent > threshold.3). Continue with latchcondition as set by Trip1.

Note: Set trip time 50mS

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-09Protection function: CEI version

1). Generate Trip Cmd output pulse.

2). Generate Breaker Open output pulse.

Protection Start

1). Eventlog/Datalog Capture.

2). LCD, LED, signaling contacts

(Ip,Io) enabled.

Trip1 occurs here

Minimum 200ms Trip Time

50 200

Save Relay status (Phase tripped or Earth Tripped] to

EEPROM

t (mS)

1). Reset protection counters.2). Start protection if current > threshold.3). Continue with latch condition as set by Trip1.

70

Relay retains trip till fault Lasts

Note: Set trip time 50mS

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-09Trip output managment

TripManagment

Remote Control(BI)

Breaker Open(Contact Closes)

(contact opens )Trip Circuit with

"NO" relayProtection Stage

Breaker Open

� Inputs:� Remote opening command

� Protection trip

� Breaker Open command

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-09REF601 Measurements

� RMS value of fundamental component

� Default displayMost loaded Phase - Amps

Earth current - % nominal

� Incorporates sensor correction factors in phase measurement

P h a s e : X X X X X A m p

E a r t h : X X . X X X I n

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T r i p C o u n t e r

P h a s e T r i p : x x x x


0 0 0 0

9 9 9 9 T r i p C o u n t e r

E a r t h T r i p : x x x x

REF601 Recorded data

� Current values for I1, I2, I3and I0 are recorded for two trip events

� Record length of 15 samples @ one sample/cycle

� 5 samples pre-trip and 10 samples post-trip

� Trip counter� Phase trip and Earth trip

counters – cannot be reset

R e c o r d e d D a t a R e c o r d e d C u r r e n t


B l o c k 1

B l o c k 2

R e c o r d e d C u r r e n t

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-09REF601 Events

� Last five events

� Events triggered by protection trip, Relay fault, 4xBI

� Event log containsAnalog values of I1, I2, I3 and I04xBI status , 4xBO status, Unit

Ready status and fault code

E v e n t s E v e n t 1

E v e n t 3

E v e n t 4

E v e n t 5

E v e n t 2

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-09REF601 Test functions

� Hardware test� LCD test

� Keyboard test

� LED test

� BI test

� BO test

� Serial EEPROM

� Trip output test

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-09Menu Nevigation

� User friendly menus with clear description

COUGAR MENU

REF 601

CONFIGURATION

SETTINGS

TEST

MEASUREMENT

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-09REF601 Mechanical Dimensions

� Compact dimensions for new and retrofit installations� Height : 160 mm

� Width : 130 mm

� Depth : 101 mm

� Weight : 1,2 Kg

� Ingress protection� IP 42 on front when panel mounted

� IP 20 on Top, Side, Bottom, Rear

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-09Menu structure (1°level)

M a i n M e n u

M e a s u r e m e n t

R e c o r d e d D a t a

E v e n t s

S e t t i n g s

C o n f i g u r a t i o n

T e s t

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-09Log-in & Password

Any button: Up, Down, Back, Next, Esc and Enter for 3-4

second (display Show “Password”)+ Enter

Up + Next(3-4 seconds)

Back + Down(3-4 seconds)

Password key combination6

YesYesYesMenu viewing5

NoYesYesProtection settings editing4

NoYesYesCOM Board parameter editing3

NoNoYesRelay Configuration editing2

NoNoYesPassword editing1

Operator LevelUser

Setting Level UserAdmin Level UserFeatureSr. No

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-09Measurement Menù

N.b.: for real time measures it isnecessary to log-in in operator view

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-09Default view

� Most loaded phase current

� Earth current

P h a s e : X X X X X A m p

E a r t h : X X . X X X I n

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-09Customer benefits

� Single Rogowsky coil interface eliminates need for current sensors with different nominal value

� Integrated IDMT curves ( IEC and Special ) in a single product solution

� Four Nominal system current selection (for IEC version) without hardware (PCBA) level versions

� Ultra wide range power supply providing compatibility to different installation supply voltage conditions

� low cost solution for breaker protection

� ROHS compliant design

� Compliant design against Harmonic distortion and inrush current

� Customer friendly user interface providing all the information at the PB clicks ( settings, event log, line current ..)

ref 601 technical presentation rev4_2

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