Breaker for preventing wire break

Abstract

The invention provides a breaker for preventing wire break, comprising a breaker body which is arranged on a power line and has external control wire access. The breaker is characterized by comprising a wire break prevention controlling unit, a power line voltage detecting sub-unit for detecting whether the power line has voltage signals or not, an external control wire voltage detecting sub-unitfor detecting whether the external control wire has voltage signals or not, and a breaking action execution sub-unit for leading the breaker body to generate breaking actions when one of the power line and the external control wire does not have voltage signals.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to a circuit breaker with the function of preventing abnormal disconnection of a power line and an external control line combined with the circuit breaker, which can be applied in a prepaid electricity management system. Background technique [0002] For the power sector, the switch breaker is an essential device to ensure the safety of electricity consumption and to switch lines. It can be applied to high-voltage or low-voltage conditions, and can be set on single-phase power lines or three-phase On the power line, we refer to the existing circuit breaker as the circuit breaker body here, which at least has the function of breaking the circuit and receiving the external control signal through the external control line. [0003] see figure 1 As shown, it is a schematic diagram of the internal structure of the existing circuit breaker; here, it is set on a single-phase power line as an example, ...

AI Technical Summary

Problems solved by technology

[0005] However, with the development of intelligent grid, the existing circuit breakers have the following defects: when one of the power lines or external control lines of the circuit breaker is broken, especially when the external control line is broken, it often does not affect the user's use. Electricity, but it brings problems to the power consumption management department. Of course, some users deliberately cut off the external control line or power line and then secretly replaced the ordinary switch in the case of prepaid control, which greatly affected the normal power consumption. order

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