一种基于降压电路的干式变压器用保护系统

Voltage reduction circuit based protection system for dry type transformer

Abstract

本发明公开了一种基于降压电路的干式变压器用保护系统,其特征在于:主要由电源,与电源相连接的降压电路,与降压电路相连接的保护电路,以及均与保护电路相连接的温度控制器和风扇电机组成;所述保护电路由输入端与降压电路相连接的过流保护电路,和输入端与过流保护电路相连接、输出端分别与温度控制器和风扇电机相连接的缓冲电路组成。本发明不仅结构简单,而且成本低廉,设置在电源与温度控制器之间的保护电路还可保护温度控制器不被烧坏,可提高温度控制器的使用寿命,从而可降低温度控制器的使用成本,适合推广运用。
The invention discloses a voltage reduction circuit based protection system for a dry type transformer. The protection system is characterized by mainly comprising a power supply, a voltage reduction circuit connected with the power supply, a protection circuit connected with the voltage reduction circuit, and a temperature controller and one or two fan motors which are both connected with the protection circuit separately; the protection circuit consists of an overcurrent circuit and a buffer circuit, wherein the input end of the overcurrent protection circuit is connected with the voltage reduction circuit; and the input end of the buffer circuit is connected with the overcurrent protection circuit while the output end of the buffer circuit is connected with the temperature controller and the corresponding fan motors separately. The protection system is simple in structure, and low in cost; meanwhile, the protection circuit arranged between the power supply and the temperature controller can prevent the temperature controller from being burnt, so that the service life of the temperature controller is prolonged, and the use cost of the temperature controller can be further lowered; and therefore, the protection system is suitable for popularization and application.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle