Major features and benefits the sel 751 feeder protection relay provides a comprehensive combination of protection fault locating features monitoring control and communication in an industrial package. Thus a single sel 751a model meets all your distribution protection needs regardless of available three phase voltage.
Sel 751 Feeder Protection Relay Data Sheet Sel 751 Feeder
Sel 751 wiring diagram. The sel 751 protection features depend on the model selected. Thus a single sel 751a model meets all your distribution protection needs regardless of available three phase voltage. 27 figure 17 wiring diagram sel sela feeder protection relays app each time the. Reliable protection in harsh environmentsthe sel 751 operates in extreme conditions with an operating temperature of 40 to 85c 40 to 185f and it is designed and tested to exceed applicable standards including vibration electromagnetic compatibility and adverse environmental conditionsin addition the sel 751 is atex certified and underwriters laboratories ul class. Sel 751 data sheet schweitzer engineering laboratories inc. Figure 1 functional diagram.
Wiring changeno internal relay hardware changes or adjustments are required. In addition the sel 751a supports single voltage input. Sel 751 data sheet schweitzer engineering laboratories inc. 30122018 30122018 1 comments on sel 751a wiring diagram sel software for relay settings and logic programming. You can use the sel 751 directional and non directional overcurrent functions to protect virtually any power system circuit or device including lines feeders transformers capacitor banks reactors and. Wiring changeno internal relay hardware changes or adjustments are required.
For customers with a single pt input the sel 751a will. For customers with a single pt input the sel 751a will. In addition the sel 751a supports single voltage input. 4 applications figure 2 shows some typical protection applications for the sel 751.
Gallery of Sel 751 Wiring Diagram
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