Automatic switching device for intelligently controlling multiple transformers

An automatic switching and intelligent control technology, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of accelerated transformer insulation aging, transformer power factor current increase, high power loss, etc., to reduce self-loss and economical and reasonable operation Effect

Inactive Publication Date: 2013-12-18
洛阳恒光特种变压器有限公司
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the power factor of the transformer decreases and the current increases. When the current flows through the transformer and the line, a large power

Method used

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Embodiment Construction

[0006] specific implementation plan

[0007] 1. Design principle of intelligent control transformer automatic switching device

[0008] The transformer automatic switching device designed in this paper mainly takes 80C51 as the core, and the control system is composed of peripheral circuits such as current transformers, sampling resistors, comparators, LED displays, and timing clock circuits.

[0009] The designed intelligent switching system is added to the high-voltage part of the transformer. This system includes two modules: a timing system and a backup transformer automatic switching device for measuring power. The main switch at the power source uses a manual switch, and the common power transformer and the common lighting transformer are all directly connected to the power line and are not connected to the control system. The automatic switching device is mainly to control the daytime power transformer and backup power transformer.

[0010] The factory generall...

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PUM

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Abstract

Disclosed is an automatic switching device for intelligently controlling multiple transformers. The automatic switching device is applicable to power supply networks of large and medium factories, capacity of a controlled system is preset to be 10MW, and primary side voltage of the transformers is 10kV. A chip 80C51, developed and produced by Intel Company, in a single chip microcomputer in a MSC-51 series is selected for a control unit of the automatic switching device, and novel setting of hardware, a clock program and a keyboard program is adopted.

Description

technical field [0001] The invention relates to an intelligent control device, in particular to an intelligent control device for automatic switching of multiple transformers. Background technique [0002] Since the power consumption of various departments of the enterprise is random, and the load is uneven day and night, and the operation mode of the transformer is different in different seasons, the transformer is often in a light-load or no-load operation state. As a result, the power factor of the transformer decreases and the current increases. When the current flows through the transformer and the line, a large power loss will occur, which not only increases the total active power loss of the factory power system, but also accelerates the insulation aging of the transformer. This intelligent control device for automatic switching of multiple transformers can reasonably control the number of transformers according to the change of factory load, so that the transformers ...

Claims

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Application Information

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IPC IPC(8): H02J3/38
Inventor 孙民
Owner 洛阳恒光特种变压器有限公司
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