Test indicator of frequency and voltage abnormality emergency control device

The utility model relates to a test indicator of a frequency and voltage abnormality emergency control device, which belongs to the technical field of power repair. The technical scheme is as follows: an internal detection circuit is composed of a plurality of parallel relays (2) respectively provided with a self-holding contact (1), and an emergency control device is connected in parallel to the two ends of the self-holding contact of each relay; a power input part comprises a power supply (3), a power indicating lamp (4) and a switch (5), the power output end is connected with the relays through the switch, and the power indicating lamp is connected across the output end of the power supply; and an operation indicating part comprises a plurality of indicating lamps (7), and each relay is connected in parallel with one indicating lamp. The test indicator is simple in operation. The state sequence of a tester can be used, tripping outlets of all rounds can be tested through one test, and the action result can be visually and accurately judged by observing the indicating lamps of an external indicating panel after wiring by a single person. The test indicator of the utility model has high scalability, can be used in a parallel mode, independently works in a modular way, and has reliable performance.