Primary and secondary deep fusion circuit breaker

Abstract

The invention belongs to the technical field of power-off equipment of a power system, and particularly relates to a primary and secondary deep integrated circuit breaker, which comprises a circuit breaker shell, and a shell door is arranged on a rectangular opening in the front end of the circuit breaker shell; the vacuum bubble is arranged at the top of the circuit breaker shell; a movable iron core of the permanent magnetic mechanism is connected with an electrode pull rod of the vacuum bubble, and a closing coil and an opening coil of the permanent magnetic mechanism are connected in series; the control protection piece is fixed on the bottom plate of the circuit breaker shell and controls the permanent magnetic mechanism movable iron core to move; and the capacitor charger is fixed on the bottom plate of the circuit breaker shell. According to the invention, a control part for protecting and controlling the permanent magnetic mechanism by the microcomputer is arranged in the shell of the circuit breaker, a large box body does not need to be independently arranged, and the permanent magnetic mechanism can be controlled to be normally used only by a small control box, so that the operation and the use are convenient, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of power system power-off equipment, and in particular relates to a circuit breaker with primary and secondary deep integration. Background technique [0002] Permanent magnet mechanism circuit breaker is a device that can instantly cut off the fault circuit on the line and protect the power supply equipment. At present, the permanent magnet mechanism circuit breaker has been widely used in the field of power equipment due to its advantages of reliable performance and long life. Among the components of the circuit breaker, the more common ones are the permanent magnet mechanism and the vacuum bubble. The permanent magnet mechanism includes the opening static iron core, the closing static iron core, the moving iron core, the permanent magnet and the opening coil arranged at both ends. And the closing coil, through the opening coil and the opening coil, the moving iron core can be controlled to attract and cl...

AI Technical Summary

Problems solved by technology

[0003] The current permanent magnet mechanism needs to connect the secondary current in the primary equipment to the control box through the cable, and the secondary control line and voltage transformer must also be connected to the control box. casualties

The protection and control part that provides operating power to the mechanism coil and controls the permanent magnet mechanism is generally installed separately in a box. Later, with the improvement of the circuit breaker, people made the power-taking voltage transformer in the primary equipment, which is called a Secondary fusion, but the control part of the permanent magnet mechanism still needs to be installed in the previous box, so a separate box needs to be set up, which is inconvenient to use

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