ABB REA 105 Operator's Manual
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ABB REA 105 Operator's Manual

ABB REA 105 Operator's Manual

Arc protection module
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REA 105
Arc Protection Module
Operator's Manual

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Summary of Contents for ABB REA 105

  • Page 1 REA 105 Arc Protection Module Operator’s Manual...

  • Page 3: Table Of Contents

    1MRS 751005-MUM Arc Protection Module REA 105 Issued: 20.04.1998 Operator’s Manual Version: C/01.07.2002 Checked: Approved: RH We reserve the right to change data without prior notice. Contents: 1. General ....................4 1.1. Features ..................4 2. Safety ....................5 3. Block diagram ..................6 4.

  • Page 4: General

    Operator’s Manual General REA 105 is an extension unit designed to be used together with the arc protection relay REA 101. The function of the unit is to detect light and to carry out tripping, if the REA 101 unit provides an overcurrent signal at the same time, or delivers a trip command.

  • Page 5: Safety

    Arc Protection Module REA 105 1MRS 751005-MUM Operator’s Manual Safety National and local electrical safety regulations must always be followed. Dangerous voltages can occur on the connectors, even though the auxiliary voltage is disconnected. The frame of the device has to be carefully earthed.

  • Page 6: Block Diagram

    REA 105 Arc Protection Module 1MRS 751005-MUM Operator’s Manual Block diagram HSO2 HSO2 HSO2 HSO1 HSO1 HSO1 X4 1 2 3 X4 1 2 3 9 10 9 10 X4 1 2 3 9 10 SG1/ 7 SG1/ 7 SG1/ 4...

  • Page 7: Description Of Operation

    When the switch SG1/5 is in the ON position, the light signal is transmitted to the central unit REA 101. Both the REA 105 and the REA 101 unit trip if the overcurrent signal is active.

  • Page 8: Operation Of In1 And Out1 Ports

    The desired delay time, 100 ms or 150 ms, is selected with the switch SG1/7 (Delay ON = 150 ms, OFF = 100 ms). Once the REA 105 unit trips, the delay time starts running. If the overcurrent signal is active when the delay time runs out, the REA 105 extension unit transfers a light signal to the port IN1 and delayed tripping will be carried out by the REA 101 unit.

  • Page 9: Self-Supervision Unit (Irf)

    When the LED indicator “IRF” of the REA 105 unit is lit, the LED “Port A/B Fault” of the REA 101 relay starts flashing, the LED indicator “IRF” is activated and the IRF relay resets.

  • Page 10: Functions Of Leds And Switches

    REA 105 Arc Protection Module 1MRS 751005-MUM Operator’s Manual 4.8. Functions of LEDs and switches LEDs activated: Power supply is connected Light The sensor fibre has detected light TRIP The unit has tripped The self-supervision system has detected a fault...
  • Page 11 Switch in ON position: The sensor fibre is used for arc detection 5. Switch 5 (Light to port IN1 ON/OFF) Switch in ON position: A light signal detected by the REA 105 is transmitted to the REA 101 unit linked to the port IN1. (When the REA 101 unit trips, the REA 105 extension units connected to it trip as well.)

  • Page 12: Connections

    REA 105 Arc Protection Module 1MRS 751005-MUM Operator’s Manual Connections Connection ports: Port IN1 Port OUT1 Port IN2 Connector X4: Light common Signal relay of sensor Light /NC Signal relay of sensor Light /NO Signal relay of sensor Not in use...

  • Page 13: Commissioning

    Arc Protection Module REA 105 1MRS 751005-MUM Operator’s Manual Commissioning 6.1. Instructions for commissioning: The following procedure should be followed when the unit is commissioned: All switch settings have to be made before the auxiliary voltage of the unit is connected.

  • Page 14: Light Reference Setting

    REA 105 Arc Protection Module 1MRS 751005-MUM Operator’s Manual 6.3. Light reference setting 1. Set the lighting level as close to normal work conditions as possible. 2. Turn the “ Light Ref. Level Adj.” potentiometer until the “ Light” LED is lit or goes out.

  • Page 15: Dimensions And Fixing

    Arc Protection Module REA 105 1MRS 751005-MUM Operator’s Manual Dimensions and fixing ø 5.0 160.5 182.6 49.6 dim105 )LJ  'LPHQVLRQV 160.5 ass103 )LJ  )L[LQJ PHWKRGV The fixing method recommended: Method 1: M4 threaded hole, fixing with M4 machine screw.

  • Page 16: Technical Data

    REA 105 Arc Protection Module 1MRS 751005-MUM Operator’s Manual Technical data Signal contacts (Light) Maximum system voltage 250 V dc/ac Continuous carry Make and carry for 0.5 s 10 A Make and carry for 3 s Breaking capacity for dc, when the control circuit time constant L/R 1 A/0.25 A/0.15 A...
  • Page 17 Arc Protection Module REA 105 1MRS 751005-MUM Operator’s Manual Seismic test IEC 60255-21-3, class 2 Electromagnetic compatibility tests The EMC immunity test level fulfills the requirements listed below 1 MHz burst disturbance test, common mode class III, IEC 255-22-1 differential mode...

  • Page 18: Order Information

    Mounting kit for connecting cases together 1MRS 050241 Mounting kit for 19” rack 1MRS 050258 Extension unit REA 103 1MRS 090417-AA Extension unit REA 105 1MRS 090418-AA Extension unit REA 107 REA 107-AA *) Includes mounting kit 1MRS 050209 for flush mounting 3UHPDQXIDFWXUHG ILEUH VHQVRUV...
  • Page 19 Arc Protection Module REA 105 1MRS 751005-MUM Operator’s Manual 3UHPDQXIDFWXUHG OHQV VHQVRUV IRU 5($  1,5 m ±3% 1MRS 120534-1.5 3 m ±3% 1MRS 120534-3.0 5 m ±3% 1MRS 120534-5.0 7 m ±3% 1MRS 120534-7.0 10 m ±3% 1MRS 120534-10 15 m ±3%...

  • Page 20: References

    REA 105 Arc Protection Module 1MRS 751005-MUM Operator’s Manual References REA10_ Technical Overview Brochure 1MRS 750929-MBG REA101 Operator’s Manual 1MRS 751003-MUM REA103 Operator’s Manual 1MRS 751004-MUM REA107 Operator’s Manual 1MRS 752135-MUM...
  • Page 24 ABB Oy Substation Automation P.O. Box 699 FIN-65101 VAASA Finland Tel. +358 10 22 11 Fax. +358 10 224 1080 www.abb.com/substationautomation...

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