Current Protection

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  2C138 Sensitive Earth Fault Relay

  The main earth fault protection relays in distributions systems, power stations & large manufacturing / processing plants can fail to detect a high impedance break down to earth causing hazard to human life & potential damage to plant & equipment. In these & other situations demanding extra sensitive earth fault protection, the 2C138 relay using solid state techniques, can be applied to detect earth currents down to 0.5 % of…
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  2C139 Shaft Overcurrent Protection Relay

  Features High sensitivity (0.1% of In) Tuned to 150 Hz or 180 Hz Fundamental & HF noise suppression Optional reset functions Instantaneous (Fast), definite time, count down 40-300V DC auxiliary supply Power supply fail relay drops out if the auxiliary supply fails. Optional 20-70V DC supply Low CT burden & high thermal rating Optional 1A or 5A CT input Instantaneous pick up LED Configurable output contacts 0-31s time delay (125ms…
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  2C63 Definite Time Current Check Relay

  The 2C63 Series relays are adjustable AC current sensing relays designed for high or low voltage power systems where they can be used in a large number of vercurrent applications. Definite time overcurrent relays offer advantages over inverse time protection in power systems which have a wide variation in source impedance. Faults can be cleared in relatively short times irrespective of the magnitude of the fault current, & coordination of…
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  2C65 Current Check Relay

  The 2C65 Series relays are adjustable AC current sensing relays designed for high or low voltage power systems where they can be used in a large number of overcurrent applications. The 2C65 Series relay is a three pole current detector with independently adjustable sensing circuits driving a common adjustable digital setting timing element. Five (5) status inputs & eight (8) relay outputs are provided as standard to allow the 2C65…