Emergency power source box and operation method thereof

Abstract

The invention discloses an emergency power source box and an operation method thereof. The emergency power source box comprises a charging module, a storage battery module, a rectification and inversion module and a large capacitance module; the charging module converts AC 220V into a charging voltage of a storage battery and charges the storage battery; the storage battery module is formed by connecting two lead acid batteries in the 12V DC voltages in series; the rectification and inversion module inverts the 24V DC voltage into an AC 24V via a bridge, and boosts the AC 24V into AC 220V by astep-up transformer after filtering, and converts the AC 220V into DC 220V by a rectifier bridge; and the large capacitance module stores instant electric energy, and provides a sufficient instant motion current for motion of a permanent magnetism switch. The power supply box is low in weight, simple in operation, safe and efficient, enables normal operation of power lines, ensures the stabilityof a power system, and avoids the frequent condition that closing cannot be carried out due to insufficient power of a controller in practical production.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an emergency power supply box and an operating method thereof. Background technique [0002] The permanent magnet circuit breaker has few moving parts, no mechanism release and locking device, less than 80 parts, less than 12 operating parts, fewer fault sources, and greatly improved permanent mechanical reliability. In addition, the closing and opening time of the permanent magnet mechanism is stable and accurate, and the deviation is less than 0.5ms, which can solve the difficult problem of phase selection operation that is difficult to achieve with the general spring operating mechanism, and its superior performance can meet the needs of intelligent development of the power grid. The operating mechanism switch, the opening is controlled by the permanent magnet controller and the spring energy storage mechanism is added for backup, and the closing can only be realized b...

AI Technical Summary

Problems solved by technology

In addition, the closing and opening time of the permanent magnet mechanism is stable and accurate, and the deviation is less than 0.5ms, which can solve the difficult problem of phase selection operation that is difficult to achieve with the general spring operating mechanism, and its superior performance can meet the needs of intelligent development of the power grid. The operating mechanism switch, the opening is controlled by the permanent magnet controller and the spring energy storage mechanism is added for backup, and the closing can only be realized by the controller driving the permanent magnet mechanism. When the line is powered off for a long time or the controller fails, the switch cannot be realized. The closing operation causes the power line to fail to operate normally and affects the stability of the power system. In actual production, it has occurred many times that the controller cannot be closed because the controller does not have enough power. Therefore, with the continuous development of the power industry, there is an urgent need for An emergency power box that is easy to transport and easy to operate to ensure the closing and opening operation of the permanent magnet circuit breaker after the power failure

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