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ABB REU 610 Technical Reference Manual
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ABB REU 610 Technical Reference Manual

ABB REU 610 Technical Reference Manual

Voltage relay
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Voltage Relay
REU 610
T ec h n i c al Ref er en c e M an u al

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Summary of Contents for ABB REU 610

  • Page 1 Voltage Relay REU 610 T ec h n i c al Ref er en c e M an u al...

  • Page 3: Table Of Contents

    1M RS 7 5 5 7 69 Voltage Relay REU 610 Issued: 31.01.2006 Technical Reference Manual V ersion: A / 07.02.2006 C on ten ts I n tr od u c ti on ............... . . 7 1.1.
  • Page 4 Voltage Relay REU 610 1MRS755769 Technical Reference Manual 5.1.8. Indicator L E Ds and operation indication messages.............. 50 5.1.9. Demand values............. 51 5.1.10. Commissioning tests..........51 5.1.11. Disturbance recorder..........51 5.1.11.1. Function..........51 5.1.11.2.
  • Page 5 C op yr i gh ts The information in this document is subject to change without notice and should not be construed as a commitment by ABB Oy. ABB Oy assumes no responsibility for any errors that may appear in this document.

  • Page 7: I N Tr Od U C Ti On

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual I n tr od u c ti on 1. 1. T h i s m an u al This manual provides thorough information on the voltage relay R E U 610 and its applications, focusing on giving a technical description of the relay.

  • Page 8: Intended Audience

    1MRS081662 Installation Manual 1MRS752265-MUM Operator’s Manual 1MRS755770 Table 1.4.-2 Other reference documentation for REU 610 N am e D oc u m en t I D Modicon Modbus Protocol Reference G uide, Rev. E PI-MBUS-300 1. 5 . D oc u m en t c on v en ti on s...

  • Page 9: S Af Ety I N F Or M Ati On

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual S af ety i n f or m ati on D angerous voltages can occur on the connectors, even though the aux iliary voltage has been disconnected. N on- observance can result in death, personal injury or substantial property damage.

  • Page 11: P R Od U C T Ov Er V I Ew

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual P r od u c t ov er v i ew 3 . 1. Us e of th e r elay The voltage relay R E U 610 is a versatile multifunction protection relay mainly designed for overvoltage and undervoltage protection and for supervision of medium voltage distribution networks.
  • Page 12 Voltage Relay REU 610 1MRS755769 Technical Reference Manual Three normally open power output contacts Two change- over signal output contacts and three additional change- over signal output contacts on the optional I/ O module Output contact functions freely configurable for wanted operation...

  • Page 13: A P P Li C Ati On

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual A p p li c ati on R E U 610 is a versatile multifunction voltage relay which is used in general voltage supervision applications. It complements the range of feeder protection relay R E F 610 and motor protection relay R E M 610 in industrial outgoing feeder and motor feeder applications.
  • Page 14 8 DX[ 2S W L R QDO 6HO I V XSHU Y L V L RQ 2S W L R QDO : DU QL QJ 6W DU W %O R F N L QJ 7U L S 8!! 8 ! 6W DU W 7U L S %O R F N L QJ...

  • Page 15: T Ec H N I C Al D Es C R I P Ti On

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual T ec h n i c al d es c r i p ti on 5 . 1. F u n c ti on al d es c r i p ti on 5 .

  • Page 16: Outputs

    Voltage Relay REU 610 1MRS755769 Technical Reference Manual 5 . 1. 1. 3 . O u tp u ts The relay is provided with: Three power output contacts PO1, PO2 and PO3 Two signal output contacts S O1 and S O2 Three optional signal output contacts S O3 , S O4 and S O5 S witchgroups S GR 1...8 are used for routing internal signals from the...

  • Page 17: Non-Volatile Memory

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual 5 . 1. 1. 6. N on - v olati le m em or y The relay can be configured to store various data in a non- volatile memory, which retains its data also in case of loss of aux iliary voltage ( provided that the battery has been inserted and is charged) .

  • Page 18: Time Synchronization

    Voltage Relay REU 610 1MRS755769 Technical Reference Manual W ARNING B ATTERY LOW A 040279 Fig. 5 .1.1.7 .-2 W arning w ith tex t mes s age W ARNING FAULT CODE: A 040280 Fig. 5 .1.1.7 .-3 W arning w ith nu meric code F or fault codes, refer to 5 .1.18 .

  • Page 19: Measurements

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual If the synchronization pulse differs more than ± 0.05 seconds for second- pulse or ± 2 seconds for minute- pulse synchronization from the relay’s real- time clock, the synchronization pulse is rejected.

  • Page 20: Configuration

    Voltage Relay REU 610 1MRS755769 Technical Reference Manual Table 5 .1.2.-1 M eas ured v alues ( C ontinued) I n d i c ator D es c r i p ti on Positive phase-sequence voltage Negative phase-sequence voltage Ū 1_ min...
  • Page 21 S O 5 S O 2 S O 1 P O 3 P O 2 P O 1 S O 4 S O 3 X 3.1 X 3.1 X 4.1 21 22 23 24 3 4 5 6 7 8 9 10 11 12 13 14 15...

  • Page 22: Protection

    Voltage Relay REU 610 1MRS755769 Technical Reference Manual The functions of the relay are selected with the switches of switchgroups S GF , S GB, S GR and S GL . The checksums of the switchgroups are found under SETTINGS in the H M I menu. The functions of the switches are ex plained in detail in the corresponding S G_ tables.
  • Page 23 1MRS755769 Voltage Relay REU 610 Technical Reference Manual The high- set overvoltage stage U>> can be set to be based on either Conventional voltage measurement ( U>> mode selected) , or Calculated negative phase- sequence voltage ( U > mode selected) .

  • Page 24: Undervoltage Protection

    Voltage Relay REU 610 1MRS755769 Technical Reference Manual at definite- time characteristic or the calculated operate time at ID M T characteristic elapses, the stage generates a trip signal. The stage is reset in 7 0 ms after the phase- to- phase voltages have fallen below the set start value of the stage.
  • Page 25 1MRS755769 Voltage Relay REU 610 Technical Reference Manual The low- set undervoltage stage U< is based on conventional voltage measurement. The low- set stage can also be used for alarm purposes. The high- set undervoltage stage U<< can be set to be based on either: Conventional voltage measurement ( U<<...
  • Page 26 Voltage Relay REU 610 1MRS755769 Technical Reference Manual Consequently, the set resetting time ensures that when the stage starts because of voltage drops, it is not immediately reset. If stage U< has already tripped, the stage is reset in 7 0 ms after the phase- to- phase voltages have fallen below 0.15 ×...

  • Page 27: Residual Overvoltage Protection

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual The benefit of this function is that the voltage value measured during or after a network fault is a good measure of how critical the fault is for a smaller power plant. W hen the positive phase- sequence voltage value falls below the critical limit, the power plant has to be disconnected from the network.

  • Page 28: Circuit-Breaker Failure Protection

    Voltage Relay REU 610 1MRS755769 Technical Reference Manual for the set resetting time. If the residual voltage ex ceeds the set start value again while the timer is running, the timer is cleared and the start of the stage remains active.

  • Page 29: Inverse Definite Minimum Time Characteristcs

    1MRS755769 Voltage Relay REU 610 Technical Reference Manual The CBF P can also be selected to be triggered ex ternally by applying a digital input signal to the relay, if the max imum of all three phase- to- phase voltages is above 0.15 ×...
  • Page 30 Voltage Relay REU 610 1MRS755769 Technical Reference Manual C h ar ac ter i s ti c s of th e ov er v oltage s tages The ID M T characteristic curve groups A and B are designed for overvoltage stages U>...

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