DC Test Function Operation of TEST-630 Microcomputer Protection Relay Tester

 DC test function enables the GFUVE TEST-630 to output adjustable DC voltage and current for testing DC protection relays, tripping circuits and auxiliary power loops. It serves as an essential supplement to AC secondary injection testing for power system commissioning.

Thanks to its independent DC output channels, the tester supports precise regulation of DC voltage and current magnitude. Operators set parameters conveniently via front panel buttons to simulate DC control signals, DC short circuits and abnormal DC power supply conditions for protection devices.

Cooperating with built-in binary input channels, the tester monitors relay pickup and dropout actions in real time. It accurately measures DC operating thresholds and verifies the reliability of relay DC control circuits, trip coils and blocking logic.

This function is widely used in substation on-site commissioning, relay cabinet inspection and laboratory type tests. It ensures reliable operation of DC control and protection loops and eliminates hidden risks in DC auxiliary circuits.

Website：https://www.gfuvegroup.com/protection-relay-tester/six-phase-microcomputer-protection-relay-tester.html

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