Orion Italia s.r.l
Model SMPR ETH - Current Voltage Power Feeder Protection Relay with Ethernet port
The SMPR has been designed to measure the line and the ground RMS currents and supply RMS voltages under normal conditions or under disturbances. This information is internally processed by the microprocessor, to take the protection actions defined by the user under ANSI, IAC or IEC standards. The operational conditions of the breaker or disconnector are also signaled.
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- CT primary ratio selectable in 5 A steps (5 to 6000 A)
- Touchpad programming
- 1 trip relay
- 3 auxiliary relays that can be associated to the various functions
- Power loss or internal fault control relay
- 3 programmable Digital inputs and 1 Digital input for breaker status
- Breaker operation failure alarm on trip command
- Primary and backup protection for utility feeder, power plants and industrial distribution systems
- Protection of transformers, overhead lines, cables and generators
- Communication port: (1) Ethernet and (2) RS485
- Remote programming of the setpoints
- Communication Protocol: Modbus RTU
- Ethernet communication port (Modbus TCP/IP)
- (27) Undervoltage
- (32) Directional power
- (37) Undercurrent
- (46) Negative sequence current
- (47) Phase-sequence voltage
- (50) Instantaneous phase overcurrent
- (50N/50G) Instantaneous ground overcurrent
- Overload alarm pickup level
- (51) Inverse time phase overcurrent
- (51N/51G) Inverse time ground overcurrent
- ANSI, IAC or IEC/BS142 curves included:
- moderately inverse
- normal inverse
- very inverse
- extremely inverse
- definite time
- (55) Power factor
- (59) Overvoltage
- (68) Blocking output
- (81) Underfrequency and Overfrequency
- (86) Lockout
- Accumulated KA per phase on breaker interruption