Slave and host used for split type fault arc detector as well as detector

Abstract

The invention discloses a slave and a host which are used for a split type fault arc detector as well as a detector. The detector comprises a host and one or multiple slaves connected with the host; the slave sheathes a to-be-protected line between a circuit breaker and a load and is used for detecting whether a fault arc exists on the to-be-protected line and transmitting a fault arc detection result to the host in a digital signal form; and the host is connected with the circuit breaker on the to-be-protected line and handles the fault arc according to the received fault arc detection result. The detector disclosed by the invention adopts a split type host-slave structure, and the host and the slave communicate by virtue of a digital signal, so that not only the problem that the traditional fault arc detector occupies more space of a guide rail, but also data processing speed of the host can be guaranteed; besides, when the slave is installed, the line does not need to be deenergized, a contact is reduced, and the possibility that the fault arc occurs is reduced.

Description

technical field [0001] The invention relates to fault arc detection technology, in particular to a slave machine, a master and a detector for split-type fault arc detectors. Background technique [0002] At present, arc fault is one of the main causes of electrical fires. Arc fault detectors, as monitoring equipment for electrical fires, can effectively reduce the probability of electrical fires in the monitored area. Therefore, the number of arc fault detectors is increasing day by day. Now Become an integral part of the safety of civilian-grade industrial electricity. [0003] Traditional arc fault detectors are generally installed on the rails in the final distribution box and placed at the rear end of the circuit breaker or leakage protector. The specific connection structure is as follows: figure 1 As shown, the arc fault detector 1 is clamped on the guide rail in the distribution box and connected to the circuit to be protected between the circuit breaker and the load...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the above-mentioned technical problems, the present invention provides a slave, a master and a detector for a split-type arc fault detector. The present invention adopts a split-type master-slave structure, and a digital signal Communication not only solves the problem that the traditional arc fault detector occupies a lot of space on the guide rail; it can also ensure the data processing speed of the host; in addition, when installing the slave, it is only necessary to make the live wire on the line to be protected pass through the slave. There is no need to disconnect the line, compared with the existing technology, the number of contacts is reduced, and the possibility of fault arc occurrence is reduced

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