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Current protection relay SMPR-1 ETH
voltagefrequencypower factor

current protection relay
current protection relay
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Characteristics

Measured/monitored value
voltage, current, frequency, power factor
Other characteristics
digital, programmable, configurable, multifunction, RS485, Ethernet, for feeder, panel-mount

Description

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. Ethernet comunication 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

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.