Digital Energy > Protection & Control > Directional Relays > JBC/JBCG/JBCV Phase and Ground Overcurrent Relay
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JBC/JBCG/JBCV Phase and Ground Overcurrent Relay

JBC/JBCG/JBCV Phase and Ground Overcurrent Relay

The Types JBC, JBCG and JBCV relays consist of three units, an instananeous power-directional unit (bottom) of the induction-cup type, a time overcurrent unit (middle) of the induction-disk type, and an instantaneous-overcurrent unit (top) of the induction-cup type. The directional-unit contacts control the operation of both the instantaneous and the time-overcurrent units (directional control). In this application, the instantaneous unit provides high-speed protection for close-in high-current faults.

Applications
  • Directional phase fault protection (JBC)
  • Directional ground fault protection (JBCG)
  • Protection and Control
  • Time overcurrent
  • Instantaneous overcurrent
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