Specifications
| Relay application | Busbars |
|---|---|
| Range of product | Sepam series 20 |
| Device short name | B21 |
| Control and monitoring type | Circuit breaker/contactor control ANSI code: 94/69 (option) Latching/acknowledgement ANSI code: 86 Annunciation ANSI code: 30 |
| Metering type | Voltage U21, U32, U13, V1, V2, V3, residual voltage V0 Positive sequence voltage Vd/rotation direction Frequency |
| Network and machine
diagnosis type |
Disturbance recording |
| Switchgear diagnosis type | Trip circuit supervision (option) |
| Type of measurement | Frequency Voltage |
|---|---|
| Protection type | Positive sequence undervoltage ANSI code: 27D/47 (2) Phase-to-phase undervoltage ANSI code: 27 (2) Phase-to-neutral undervoltage ANSI code: 27S (1) Phase-to-phase overvoltage ANSI code: 59 (2) Neutral voltage displacement ANSI code: 59N (2) Remanent undervoltage ANSI code: 27R (1) Overfrequency ANSI code: 81H (1) Underfrequency ANSI code: 81L (2) |
| Communication port
protocol |
Measurement readout ( option ) : Modbus Remote indication and time tagging of events ( option ) : Modbus Remote control orders ( option ) : Modbus Remote protection setting ( option ) : Modbus Transfer of disturbance recording data ( option ) : Modbus |
| Input output max capacity | 10 inputs + 8 outputs |
| Communication
compatibility |
IEC 60870-5-103 DNP3 Modbus RTU IEC 61850 |
| User machine interface type | Remote Advanced Without |
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