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Intelligent circuit breaker for frequent switching of impact load and control method thereof

A technology of intelligent circuit breaker and impact load, which is applied in the direction of circuit device, AC network circuit, AC network load balance, etc., can solve the problems that the impact of impact current cannot be reduced, achieve current balance, and improve the effect of carrying capacity

Inactive Publication Date: 2022-02-01
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there are few studies on the impact of the impact current generated by the frequent switching of the impact load on the circuit breaker. Generally, it is not possible to consider from the perspective of relay protection or the technical parameters and capacity selection of the circuit breaker itself. Effectively reduce the impact of inrush current

Method used

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  • Intelligent circuit breaker for frequent switching of impact load and control method thereof
  • Intelligent circuit breaker for frequent switching of impact load and control method thereof
  • Intelligent circuit breaker for frequent switching of impact load and control method thereof

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] The schematic diagrams of the structures according to the disclosed embodiments of the present i...

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Abstract

The invention discloses an intelligent circuit breaker for frequent switching of an impact load and a control method thereof. The intelligent circuit breaker comprises a voltage transformer, a current transformer, a temperature measurement module, an impact load compensation module and a control system; and the voltage transformer is connected to the three-phase four-wire in parallel, the current transformer is connected to the three-phase four-wire in parallel, the temperature measurement module is connected to the three-phase four-wire in parallel, the impact load compensation module is connected to the A phase, the B phase and the C phase in the three-phase four-wire in series, and the circuit breaker and the control method thereof have high impact load bearing capacity.

Description

technical field [0001] The invention relates to an intelligent circuit breaker and a control method thereof, in particular to an intelligent circuit breaker for frequent switching of impact loads and a control method thereof. Background technique [0002] Shock loads and fluctuating loads (such as short-circuit test loads, electrified railways, electric arc furnaces, electric welding machines, rolling mills, etc.) due to their own randomness, intermittent and large loads, when they are connected to the power grid, the overload, harmonics, Voltage and other issues will pose a serious threat to good power quality. Especially in the low-voltage power distribution system, frequent switching of impact loads has a more obvious impact on power quality. At the distribution network level, reactive power compensation and other methods are usually used to solve the impact load. At present, most reactive power compensation methods in the power grid are adopted. SVC, but there are many ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/28H02J3/00H02J3/24H02J3/26
CPCH02J3/28H02J3/00H02J3/002H02J3/24H02J3/26Y02E40/50
Inventor 史振利何信林张鹏李春丽杨世强雷阳
Owner XIAN THERMAL POWER RES INST CO LTD
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