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ORION ITALIA IPR-A2 Instruction Manual

Current protection relay
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O R I O N I T A L I A
I N S T R U C T I O N M A N U A L
I P R - A 2
Current protection relay
Software rev.: IPR-A2 S2.01
Manual P/N: IPR-A2 GBM 30/06/2019
Via G. Orsi 35, 29122 Piacenza [PC] – Italia
Phone: + 39 0523 591161, Fax: + 39 0523 593898, Internet:
www.orionitalia.com

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  • Page 1 I N S T R U C T I O N M A N U A L I P R - A 2 Current protection relay Software rev.: IPR-A2 S2.01 Manual P/N: IPR-A2 GBM 30/06/2019 Via G. Orsi 35, 29122 Piacenza [PC] – Italia Phone: + 39 0523 591161, Fax: + 39 0523 593898, Internet: www.orionitalia.com...
  • Page 3 It indicates INFORMATION or REMARKS that must be read with particular attention. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 5 4.9 Setpoints page 9: EVENT RECORDER 4.13 ....................4.10 Setpoints page 10: DATE & TIME 4.14 ......................4.11 Setpoints page 11: COMMUNICATIONS 4.15 .................... 4.12 Setpoints page 12: CALIBRATION MODE 4.15 ..................CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 6 Definition of “event” and storing ........................Events format ..............................TROUBLESHOOTING ......................9. WARRANTY ..........................APPENDIX A – Tables and time-current curves ............. ANSI curves ..................................IAC curves .................................... IEC curves .................................... Diagrams ....................................CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 7 3. separate managing of the phase and ground overcurrent setpoints; 4. phase and ground overcurrent alarm and trip delay according to time-current curve set and to the entity of current. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 8 REMARK: when selecting the curve for the circuit breaker trip, make sure the max. input current to IPR-A does not exceed 100 A for more than 1 second  the wrong combination of time and current could damage the unit and consequently provoke the loss of protection. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 9 7W, 12 VA (max) 24÷240 Vac, –15%, +10%, 50/60Hz TEMPERATURE RANGES RELATIVE HUMIDITY Operational: from 0 °C to +50 °C Max.: 90% (non condensing) from –20 °C to + 70 °C Storage: CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 10 Saturation: 18 times the CT rated current. Accuracy: ± 3% of the setting. Delay: included in ± 3% or in ±20 ms, per >150% of pickup level. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 11 EN 61000-4-4; Port: AC mains and signal lines. 5. Surge Reference norms: EN 61000-4-5; Port: AC mains. 6. Voltage dips and short interruptions Reference norms: EN 61000-4-11; Port: AC mains. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 12 MODEL 1: Standard version 2: Standard version + ANSI 79, 46 functions PHASE SECONDARY CT 1: 1 Ampere 5: 5 Ampere GROUND SECONDARY CT 1: 1 Ampere 5: 5 Ampere CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 13 - this instruction manual - the fixing elements - the Test certificate (if required) As soon as you receive the unit, inspect it and inform ORION ITALIA of any damage. If reshipment is required, the original container and packing should be used. MOUNTING The mounting should be carried out as follows: 1.
  • Page 14 Digital outputs should be isolated from each other for correct operation. The maximum input impedance to these digital outputs is 2 k. The power supply must be connected to terminals 32 and 34. For further information: → § 1.7 – "Specification" CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 15 DRY CONTACT SWITCH INPUTS 24 - 240 Vac/Vdc 2>tx ALIMENTAZIONE SBARRE DI TERRA 3>rx MODELLO UNIVERSALE QUADRO ELETTRICO 5>Gnd CONTROL POWER SWITCHGEAR UNIVERSAL TYPE GROUND BUS Figure 2.3 – Wiring diagram CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 16 The connections are cascade-type and end on the converter. Avoid star or loop connections. A maximum of 32 relays can be daisy-chained together in parallel mode on a communication channel for a MAXIMUM DISTANCE OF 1000 METERS. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 17 Chapter 2: Installing For increasing the number of relays on a single channel to more than 32 refer to ORION ITALIA. Figure 2.5 – Communications diagram CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 18 If hipot testing is to be performed on an installed relay for insulation verification, all remaining terminals except for: • Safety ground terminal + external shield ........................• Surge suppression components ground terminal (grounded to separate filter ground) ........should be connected in parallel. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 19 SETPOINTS or ACTUAL VALUES menu (range: YES/NO) without entering the access code. Press PROG key instead of: ENTER ACCESS CODE + STORE Key CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 20 In the SETPOINT Pages (except for PAGE 1), the value indicated in this manual in the 2 line of the display has been set by the Manufacturer of the relay. This symbol indicates the key that must be pressed. ✓ CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 21 This menu allows displaying or clearing some of the parameters monitored or calculated by the relay. Before reading the map, study carefully the information in the previous paragraphs: 3.1; 3.2; 3.3; 3.4; 3.5 and 3.6. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...

  • Page 22: Table Of Contents

    ▼ ▲ PAGE SETPOINT PAGE 10 DATE & TIME ▼ ▲ PAGE SETPOINT PAGE 11 COMMUNICATIONS ▼ ▲ PAGE SETPOINT PAGE 12 CALIBRATION MODE ▼ ▲ PAGE END OF SETPOINTS CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...

  • Page 23: Setpoint

    (*) If YES has been selected, by pressing STORE key, all the nine keys on the front panelboard modify their functions and allow to enter the digits from 1 to 9, according to the correspondence represented in the diagram. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...

  • Page 25: Setpoint

    It indicates the IPR-A firmware version. IPR-A - FIRMWARE END OF PAGE Last LINE of PAGE 1. Press LINE or ▲PAGE, to pass to the first line of PAGE 2. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 26 Press LINE: the selection: T – 2 – has been completed and you pass to the following Line of PHASE TIMED O/C the active Setpoint. RELAY: T – 2 – CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...

  • Page 27: System Setup

    This value is used for enabling the opening of the disconnector only if:  current rating in the phases < set value. WARNING: The fuses current must be inferior to the disconnector opening rated current. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 28  • Accumulated Amp Relay "– – – –" Last LINE of PAGE 2. END OF PAGE Press LINE or ▲PAGE, to pass to the first line of PAGE 3. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...

  • Page 29: Ph. Protections

    50% of the value entered in PHASE CT RATING PRIMARY of SETPOINT PAGE 2: SYSTEM SETUP. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 30 Example: if entering 50% as percentage value, the relay starts counting the intervention delay of the selected relay when the inverse current arrives at 50% of the value entered in PHASE CT RATING PRIMARY of SETPOINT PAGE 2: SYSTEM SETUP. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...

  • Page 31: Gnd. Protections

    “GROUND TIMED O/C PICKUP” for a longer time than the set one. This line is displayed only if: • Ground Timed O/C Relay  “ – – – –“ and Ground O/C Curve = DEFINITE TIME CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...

  • Page 32: Setpoint

    This PAGE is not available. SETPOINT PAGE 5 NOT AVAILABLE END OF PAGE Last LINE of PAGE 5. Press LINE or ▲PAGE, to pass to the first line of PAGE 6. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...

  • Page 33: Setpoint

    AMP. UNBALANCE RANGE: ......................RECLOSE ? By selecting YES in this setpoint, whenever an Amper Unbalance trip occurs, the 2 autoreclose is performed. "1 AUTORECLOSE RELAY"  – – – – CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 34 RANGE: ......................RECLOSE ? By selecting YES in this setpoint, whenever an Amper Unbalance trip occurs, the 2 autoreclose is performed. "2 AUTORECLOSE RELAY"  – – – – CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019 4.10...

  • Page 35: Output Relays

    RESET. • AUTORESET operation: In order to perform the autoreclosure, use this configuration for the output connected to the close coil. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019 4.11...
  • Page 36 For AUX3 display the information at page 4.4 “OUT OF SERVICE ON AUX 3”. END OF PAGE Last LINE of PAGE 7. Press LINE or ▲PAGE, to pass to the first line of PAGE 8. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019 4.12...

  • Page 37: Digital Inputs

    It enables/disables phase current protection events recording. Gnd. PROTECTIONS RANGE: ON; OFF ......................EVENTS: ON It enables/disables ground current protection events recording. SYSTEM RANGE: ON; OFF ......................It enables/disables alarms events recording. EVENTS: ON CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019 4.13...
  • Page 38 ....................16:54:02.10 0  23 Jun 9, 2001 RANGE: ....................... 16:54:02.10 0  59 Jun 9, 2001 RANGE: ....................... 16:54:02.10 0  59 Jun 9, 2001 RANGE: ....................... 16:54:02.10 CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019 4.14...
  • Page 39 Chapter 4: "SETPOINTS" Menu END OF PAGE Last LINE of PAGE 10. Press LINE or ▲PAGE, to pass to the first line of PAGE 11. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019 4.15...
  • Page 40 DIGITAL INPUT 3 RANGE: DEACTIVATED; ACTIVATED ................. DEACTIVATED This message allows controlling the status (DEACTIVATED or ACTIVATED) of external contact DIGITAL INPUT 3. Last LINE of PAGE 12. END OF PAGE CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019 4.16...
  • Page 41 It displays the negative sequence current value when the last trip occurred. 0.00 Amp Last LINE of PAGE 2. Press LINE or ▲PAGE, to pass to the first line of PAGE 3. END OF PAGE CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 42 The total measuring resulting from the addition of the value detected when the trip has Ph. C 0 KA occurred to the previous total value gives an indication about the wear of the opening device. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 43 1) The 1 and 2 autorecloses have already been performed. 2) Incoherence relevant to Circuit Breaker or Disconnector. RECLOSE The 1 reclose has been performed. RECLOSE The 2 reclose has been performed. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 45 The two leds do not refer to an active trip contact but signal that the device has switched off due to a trip caused by a fault. Press RESET to stop the signalling. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 47 Each event is characterized by the line parameters values when the event is occurring. The stored parameters are the following: • description of the event, • each of the 3 phase currents, • ground current, • event date and time. CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 49 Wiring diagram Setpoint 2 and the ground CT connections. Check the CTs right connection according to "Residual" entering, if Page 2 of Setpoint RESIDUAL has been set in Setpoint Wiring diagram CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 51 Chapter 9: Warranty 9. Warranty ORION ITALIA warrants that the materials and the labouring of every relay have no faults with normal use and working conditions for a period of 12 months starting from the date of shipping from the manufacturer.
  • Page 53 IAC Short time IAC Normally inverse IAC Very inverse IAC Extremely inverse IEC/BS 142 CURVES IEC Short time IEC A Normally inverse IEC B Very inverse IEC C Extremely inverse CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 54 Appendix A ANSI CURVES ANSI CURVE CONSTANTS Moderately Inverse TRIP TIME (SEC) 0.1735 0.6791 -0.08 0.1271 Normally Inverse CURVE MULTIPLIER SETPOINT 0.0274 2.2614 -4.19 9.1272 Very Inverse INPUT CURRENT 0.0615 0.7989 0.34 -0.284 4.0505 Extremely Inverse PICKUP CURRENT SETPOINT 0.0399 0.2294 3.0094 0.7222 MULT.
  • Page 55 1.060 0.926 0.571 0.417 278.12 50.964 22.474 9.087 5.333 3.686 2.789 2.233 1.858 1.590 1.389 0.856 0.626 370.83 67.952 29.966 12.116 7.111 4.915 3.718 2.977 2.477 2.120 1.853 1.142 0.834 CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 56 Appendix A IEC CURVES IEC CURVE CONSTANTS Short Time TRIP TIME (SEC) 0.05 0.04 Curve A CURVE MULTIPLIER SETPOINT 0.14 0.02 Curve B INPUT CURRENT 13.5 Curve C PICKUP CURRENT SETPOINT MULT. I/Ipu IEC SHORT TIME 0.655 0.153 0.089 0.056 0.044 0.038 0.034...
  • Page 57 Appendix A CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 58 Appendix A...
  • Page 59 Appendix A CURRENT PROTECTION RELAY - IPR-A Manual P/N: IPR-A2 GBM 30/06/2019...
  • Page 60 ORION ITALIA srl Via G. Orsi 35, 29122 Piacenza [PC] – Italia Phone: + 39 0523 591161, Fax: + 39 0523 593898, Internet: www.orionitalia.com...

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