Medium-voltage and low-voltage arc light busbar protection device set

Abstract

The invention discloses a medium-voltage and low-voltage arc light busbar protection device set. The medium-voltage and low-voltage arc light busbar protection device set comprises a protection device and a busbar. The protection device is connected with a communication system. A single chip microcomputer is arranged inside the protection device. An over-current detection unit, an arc light detection auxiliary unit and a temperature sensor are connected to the single chip microcomputer. The over-current detection unit is connected to the busbar. An arc light sensor is connected to the arc light detection auxiliary unit and connected to the busbar. Meanwhile, a self-adjusting component is added, and the corresponding adjusting action can be made under the control of the single chip microcomputer on the certain specified condition, so that the busbar works continuously, and the probability of the arc light occurrence is remarkably lowered; in addition, the single chip microcomputer is connected with the communication system and finally connected to a mobile terminal, a mobile phone can monitor the protection device set, a worker can more conveniently master the running condition of the protection device set in real time, and damage caused by faults to the protection device set is remarkably reduced.

Description

technical field [0001] The invention relates to a bus protection device group, in particular to a medium and low voltage arc bus protection device group. Background technique [0002] In electrical equipment such as transmission lines, generators, motors and transformers, the probability of bus failure is relatively low. However, due to flashover of bus insulators, circuit breakers, and isolating switch bushings, misoperation by operators, and small animals endangering medium and low voltage buses, bus failures occur from time to time. Usually, there are many electrical components connected to the bus, and when the bus fails, all these electrical components will be powered off, which will affect a large area and cause serious consequences. At present, in order to meet the requirements of the transient stability of the power system, the busbars with a voltage level above 220KV in our country are generally equipped with special fast busbar protection, and busbar faults can be...

AI Technical Summary

Problems solved by technology

In the case of indoor switchgear-type power distribution equipment, the arc may also ignite the devices in the switchgear, causing a fire, burning a large area of ​​power distribution equipment, and even causing more serious consequences

At the same time, in the actual use process of the existing medium and low voltage busbar protection devices, the delay is long, and the protection action time is generally about 200-500ms, and the protection effect on the medium and low voltage busbars is not ideal.

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