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SPAJ141C  ABB Combined overcurrent and earth-fault relay

SPAJ141C  ABB Combined overcurrent and earth-fault relay

Manufacturers ：ABB
Model(s)  ：SPAJ141C
Additional Information ：Combined overcurrent and earth-fault relay
Estimated Shipping Size
Dimensions: 263 × 58 × 28mm
Weight:.4.3 kg
Country of Origin: United States of America

 

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Categories: , SKU: SPAJ141C 

Description

Overview

Essential details：SPAJ141C  ABB Combined overcurrent and earth-fault relay

The combined overcurrent and earth-fault relay SPAJ 141 C is intended to be used for the selective short-circuit and earth-fault protection of radial feeders in solidly earthed, resistance earthed or impedance earthed power systems. The integrated protection relay includes an overcurrent unit and an earth-fault unit with flexible tripping and signalling facilities. The overcurrent and earth-fault relays can also be used for other applications requiring single-, two-, or three-phase overcurrent protection and earth-fault protection. The combined overcurrent and earth-fault relay includes a circuit-breaker failure protection unit.

The combined overcurrent and earth-fault relay SPAJ 141 C is part of ABB’s Distribution Automation concept extending ABB’s solution for the control and management of electric power systems.

SPAJ141C

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SPAJ141C  ABB Combined overcurrent and earth-fault relay

Scope

  • Combined overcurrent and earth-fault protection

Product benefits

  •  Protection for a variety of power distribution applications

Product features

  • Three-phase, low-set phase overcurrent unit with definite time or inverse definite minimum time (IDMT) characteristi
  • Three-phase, high-set phase overcurrent unit with instantaneous or definite time operation
  • Low-set sensitive earth-fault unit with definite time characteristic
  • High-set earth-fault unit with instantaneous or definite time operation
  • Built-in circuit-breaker failure protection
  • Reading and writing of setting values either via local display and front panel push-buttons or from higher-level systems over the serial interface and the fibre-optic bus
  • Self-supervision system continuously monitoring the operation of the electronics and the microprocessor

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