JPS6025973U

JPS6025973U - Abnormality detection device for on-load tap switching transformer

Info

Publication number: JPS6025973U
Application number: JP11650983U
Authority: JP
Inventors: 大矢知　俊雄
Original assignee: 株式会社ダイヘン
Priority date: 1983-07-28
Filing date: 1983-07-28
Publication date: 1985-02-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は負荷時タップ切換変圧器が設置される系統の構
成を示す系統図、第２図は本考案の実施例の基本構成を
示したブロック図、第３図は本考案の具体的実施例を示
した回路図である。４・・・負荷時タップ切換変圧器、５・・・タップ切換
指令発生器、６・・・タップ切換器、６Ａ・・・タップ
切換器の駆動装置、１０・・・異常検出装置、１１・・
・タップ切換極限位置検出器、１２・・・限時回路、５
０・・・電圧リレー、５０Ｒ，５０Ｌ・・・補助リレー
、ＩＩＬ、ＩＩＲ・・・リミットスイッチ、２０・・・
限時リレー。Figure 1 is a system diagram showing the configuration of a system in which on-load tap-changing transformers are installed, Figure 2 is a block diagram showing the basic configuration of an embodiment of the invention, and Figure 3 is a concrete implementation of the invention. FIG. 2 is a circuit diagram showing an example. 4... On-load tap change transformer, 5... Tap change command generator, 6... Tap changer, 6A... Tap changer driving device, 10... Abnormality detection device, 11.・
・Tap switching extreme position detector, 12... time limit circuit, 5
0... Voltage relay, 50R, 50L... Auxiliary relay, IIL, IIR... Limit switch, 20...
timed relay.

Claims

[Scope of utility model registration request]

a tap switching command generator that issues a step-up command and a step-down command when the voltage on the output side of the voltage regulating transformer is lower and higher than a set voltage, respectively; and a tap switching command generator that issues a step-up command and a step-down command, respectively; In the abnormality detection device for an on-load tap changeover transformer, which is equipped with a tap changer that switches a tap to a step-up side and a step-down side, the step-up side extreme position and the step-down side extreme position of a drive device that drives the tap changer, respectively. a tap-switching extreme position detector that performs a sensing operation;
When either the step-up command or the step-down command is issued and the tap switching extreme position detector is performing a detection operation, it performs a timed operation and reaches the set time when the time required for one tap switching is exceeded. An abnormality detection device for an on-load tap change transformer, comprising: a time limit circuit that outputs an abnormality detection signal when a voltage is reached.