Guarantee - ABB REJ 527 Technical Reference Manual

Directional or non-directional earth-fault relay

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REJ 527

1.4.

Directional or Non-Directional Earth-Fault Relay

Technical Reference Manual

• disturbance recorder data

• recorded data of the five last events with time stamp

• number of starts for each stage

• alarm indication messages and LEDs showing the status at the moment of

power failure

• Two accurate measuring inputs

• Galvanically isolated binary input with a wide input voltage range

• All settings can be modified with a personal computer

• HMI with an alphanumeric LCD and manoeuvring buttons

• IEC 60870-5-103 and SPA bus communication protocols

• Two normally open power output contacts

• Two change-over signal output contacts

• Output contact functions freely configurable for desired operation

• Optical PC-connector for two-way data communication (front)

• RS-485 connector (rear) for system communication

• Continuous self-supervision of electronics and software. At an internal relay

fault (IRF), all protection stages and outputs are blocked.

• User-selectable rated frequency 50/60 Hz

• User-selectable password protection for the HMI

• Display of primary current and voltage values as well as phase angle values

• Multi-language support

Guarantee

Please inquire the guarantee of your nearest ABB representative.

1MRS 750616-MUM

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