Device for distinguishing and indicating fault of thermomagnetic tripping device
A thermal-magnetic release and fault identification technology, applied in the direction of the protection switch distinguishing mark, protection switch operation/release mechanism, etc., can solve the problems of inaccurate fault indication, unreliable positioning, unreliability, etc. Assembly, the effect of a small number of parts
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[0018] Such as figure 1 As shown, a fault identification and indication device for a thermomagnetic trip unit of the present invention includes a top cover 11, and an observation window 12 is provided on the top cover 11. Under the top cover 11, there is an instantaneous traction rod 21 and a delay traction rod 22. The instantaneous traction rod 21 and the delay traction rod 22 are rotatably mounted on the same traction rod shaft 23. The two ends of the traction rod shaft 23 are respectively A return spring 24 for resetting the instantaneous traction rod 21 and the delay traction rod 22 is provided. The instantaneous trip buckle 31 cooperates with the instantaneous traction rod 21, the delay trip buckle 32 cooperates with the delay traction rod 22, and the instantaneous trip buckle 31 and the delay trip buckle 32 are rotatably mounted on the same tripping shaft 34.
[0019] Such as figure 2 As shown, this is a schematic diagram of the present invention in a short-circuit trip st...
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