Download - 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: EarthO/C trip Io
BO: Unitready
TripContactRelay
BO: PhaseO/C trip Ip
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: EarthO/C trip Io
BO: Unitready
TripContactRelay
BO: PhaseO/C trip Ip
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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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
T r i p C o u n t e r
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
T r i p C o u n t e r
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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-09Product 3D model : REF 601
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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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-09Overall Dimensions
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-09REF601: Mechanical assemblying
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-09Terminal Arrangement
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-09REF601 Circuit Breaker Mounting
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-09Mounting Arrangement: Panel mounting
Panel cut-out
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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 ..)
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