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ABB REJ 527 Product Manual

Directional or non-directional earth-fault relay
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REJ 527
Directional or Non-Directional
Earth-Fault Relay
Product Guide

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Summary of Contents for ABB REJ 527

  • Page 1 REJ 527 Directional or Non-Directional Earth-Fault Relay Product Guide...
  • Page 3 • Multi-language support Application The directional or non-directional earth-fault stages can be replaced by two additional volt- relay REJ 527 is a secondary relay which is age stages, low-set stage U > and high-set connected to the voltage and current trans- stage U >>.

  • Page 4: Directional Or Non-Directional Earth-Fault Current Unit

    Directional or Non-Directional Earth-Fault REJ 527 Relay 1MRS751132-MBG Directional or non-directional voltage and the current. The sinus or cosinus value of the phase angle is calculated and earth-fault current unit multiplied by the earth-fault current to get the The high-set and the low-set stage the direc- .

  • Page 5: Zero-Sequence Voltage Unit

    60 ms. The start situation ends when the Disturbance recorder current falls below 125% x I >. he REJ 527 includes an internal disturbance recorder which records the momentary mea- sured values, or the RMS curves of the mea- Zero-sequence voltage unit...

  • Page 6: Hmi Module

    HMI module The REJ 527 is provided with two serial com- The HMI of the REJ 527 is equipped with six munication ports, one on the rear panel and push-buttons and an alphanumeric 2 x 16 the other on the front panel.

  • Page 7: Technical Data

    Directional or Non-Directional Earth-Fault REJ 527 Relay 1MRS751132-MBG Technical data Table 1: Energizing inputs Rated frequency 50/60 Hz ±5 Hz Current input Rated current, I n 0.2 A Thermal withstand capability - continuously 1.5 A 20 A - for 1 s...
  • Page 8 Directional or Non-Directional Earth-Fault REJ 527 Relay 1MRS751132-MBG Table 7: Auxiliary voltage rated Ur =110/120/220/240 V ac Ur =48/60/110/125/220 V dc variation 80…265 V ac 38…265 V dc Relay power start-up time, typical 300 ms Burden of auxiliary supply under...
  • Page 9 Directional or Non-Directional Earth-Fault REJ 527 Relay 1MRS751132-MBG Table 12: Electromagnetic compatibility tests Radio frequency interference tests Conducted, common mode According to the IEC 61000-4-6 and IEC 60255-22-6 (2000) 10 V (rms), f = 150 kHz…80 MHz Radiated, amplitude-modulated According to the IEC 61000-4-3 and IEC 60255-22-3 (2000) 10 V/m (rms), f = 80…1000 MHz...

  • Page 10: Connection Diagram

    • LIB 510 Library for MicroSCADA; LIB support the new functions and features of 510 v. 4.0.3-1, or later REJ 527 Release B: • SMS 510 Substation Monitoring System; SMS 510 v. 1.0.0-3, or later • CAP 505 Relay Product Engineering Tools;...
  • Page 12 ABB Oy Distribution Automation P.O. Box 699 FI-65101 Vaasa, FINLAND Tel +358 10 22 11 Fax +358 10 224 1094 www.abb.com/substationautomation...

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