ORION Current Protection Relay ( IPR-A)

ORION  Phase Over-Current & Ground Fault Protection Relay
 

The Current Protection Relay (IPR-A) has been designed to measure the line and ground RMS currents under normal conditions or under disturbances. The current signals are sensed throughout current transformers (CT) from each line. This information is internally processed by the microprocessor in order to take the current protection actions defined under ANSI, IAC or IEC standard. 

APPLICATIONS
◐  Primary and backup protection for utility feeder, power plants and industrial distribution systems
◐  Protection of transformers, overhead lines, cables and generators
◐  Allow the opening of the switch/disconnector within the limits of its capacity, leaving the circuit interruption fuses in the case of short circuit

PROTECTION AND FUNCTIONALITY
◐  (50) Instantaneous overcurrent
◐  (50N/50G) Instantaneous ground overcurrent
◐  (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
◐  *(46) Negative sequence timed overcurrent
◐  *(79) Reclosing (2 shots)
◐  Overload alarm pickup level
◐  Accumulated kA per phase on breaker interruption

ORDER CODE 

 
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