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A voltage regulating device, system and method for an on-load tap changer of a distribution transformer

A distribution transformer and on-load tapping technology, which is applied in the electronic field, can solve problems such as difficult maintenance, short operating life, and high failure rate, and achieve the effects of compact structure, short time delay, and fast voltage regulation process

Active Publication Date: 2018-12-25
鄄城睿鹰制药有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional on-load tap-changer device is a mechanical rotary tap-changing adjustment method, with complex structure, high failure rate, short operating life, and difficult maintenance

Method used

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  • A voltage regulating device, system and method for an on-load tap changer of a distribution transformer
  • A voltage regulating device, system and method for an on-load tap changer of a distribution transformer
  • A voltage regulating device, system and method for an on-load tap changer of a distribution transformer

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with specific embodiment:

[0053] See attached figure 1 to attach image 3 As shown, Embodiment 1 of the present invention provides an on-load tap changer voltage regulating device for a distribution transformer, including an upper housing 11, a switch tube pole base plate 12, a high-voltage cable combined socket 13, and a high-voltage cable combined plug 9 , Current transformer CT, permanent magnet switch K1, permanent magnet switch K2, permanent magnet switch K3, permanent magnet switch T1;

[0054] The upper casing 11 is fixedly connected directly above the switch tube pole base plate 12 by bolts;

[0055] The high-voltage cable combination plug 9 is fixedly connected to the upper housing 11 through a high-voltage cable combination socket 13; the high-voltage cable combination plug 9 is used to connect the high-voltage cable drawn out from the distribution transformer excitation sub-tap;

[0056] ...

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Abstract

The invention relates to an on-load tap changer voltage regulating device, system and method for a distribution transformer. The voltage regulating device comprises an upper shell, a switch tube pole base plate, a high voltage cable combined socket, a high voltage cable combined plug, a current transformer and a permanent magnet switch; the upper shell is fixedly connected right above the switch tube pole base plate through a bolt; the high voltage cable combined plug is fixedly connected on the upper shell through the high voltage cable combined socket; the high voltage cable combined plug is used for connecting a high voltage cable; and the current transformer and the permanent magnet switch are fixedly connected on the switch tube pole base plate. The on-load tap changer voltage regulating device provided by the invention has the advantages of being simple in structure, few in action parts, high in reliability and long in working life. The system adds the circulation control of a monostable permanent magnet switch, a zero-crossing detection unit and a current limiting resistor, and automatically controls transition of an excitation tap of the distribution transformer to complete on-load voltage regulation of the distribution transformer, so that a voltage regulating process is fast and non-impact.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to an on-load voltage regulating device, system and method for a distribution transformer of a tap. Background technique [0002] The excitation coil taps of distribution transformers in active service have several wiring methods: tail, middle and end. Generally, the on-load tap changer device and the distribution transformer winding are immersed in the same body. The traditional on-load tap-changer device is a mechanical rotary tap-changing adjustment method, with complex structure, high failure rate, short operating life, and difficult maintenance. In order to comprehensively improve the functional practicability of the on-load tap-changer of the distribution transformer and facilitate on-site disassembly and assembly, a separate on-load tap-changer device is urgently needed. Contents of the invention [0003] Aiming at the defects of the prior art, the inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/12H01F29/04
CPCH01F29/04H02J3/12
Inventor 金钊
Owner 鄄城睿鹰制药有限公司
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