Overview
Manuals
Application Details
Lifecycle & Retrofit Status
Protection Setting Review
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
- High-set earth-fault unit with instantaneous or definite time operation
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.
The SPAJ141C ABB Overcurrent and earth-fault relay may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB SPAJ141C Overcurrent and earth-fault relay MANUAL(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
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 resistance earthed or impedance
earthed power systems. The integrated protective relay comprises both an overcurrent unit and an earth-fault unit with highly flexible tripping and signalling facilities. The feeder protection can be used in applications requiring a single-, twoor three-phase overcurrent protection and a nondirectional earth-fault protection. The overcurrent and earth-fault relay also comprises a circuit breaker failure protection.
The SPAJ 141 C series relays were officially discontinued in 2011. As this series is obsolete, ABB offers upgrade support:
Relay Retrofit Program: Organizations wishing to upgrade their switching equipment can use ABB's custom retrofit adapter kits to seamlessly replace these older relays with modern Relion 615 or 620 series relays without completely rewriting the control panel.
Before replacing SPAJ 141 C, record the phase and earth-fault pickup values, time or IDMT curves, auxiliary supply and rated frequency. ABB provides a retrofit path for SPACOM relays through the REX610 program.
