Direction Or Non Direction Over Current Relay

Direction Or Non Direction Over Current Relay

Product Details:

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Product Description

Description:

A directional/non-directional over current relay presentedin an educational format. Supplied with Protection and Relay Test Set the relayenables investigations into protection and monitoring of generator andtransformer schemes, overhead lines, underground cables and backup onhigh-voltage systems. The relay is housed in a robust enclosure with carryinghandle. The module mounts on the desk area of the Protection and Relay TestSet, and connects to it using a multi-core cable and safety leads.

The main functions ofthe Directional/Non-Directional Overcurrent Relay include:

  • Three independent stages of directional/nondirectional phaseovercurrent. The first stage may be set to any of 12 IDMT curves, the remainingtwo having a direct time characteristic.
  • Thermal overload protection
  • Undercurrent
  • Negative phase sequence overcurrent
  • Undervoltage
  • Overvoltage
  • Directional/non-directional earth fault
  • Selectable blocking
  • Creating fault and disturbance records

Specification:

Dimensions:

300 mm x 550 mm x 278 mm

Packed 0.16 m3

Weight:

Nett 11 kg

Packed 31 kg

Current:

1 A (a.c.)

Frequency:

50 or 60 Hz

Accuracy:

 Â±10%

Operating time:

Typically 10 ms to 25 ms


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