JPS584073U

JPS584073U - voltage detector

Info

Publication number: JPS584073U
Application number: JP9791481U
Authority: JP
Inventors: 茂藤田
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1981-06-30
Filing date: 1981-06-30
Publication date: 1983-01-11
Also published as: JPH0311743Y2

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 the drawing]

第１図は従来の電圧検知器の入力回路を示す回路図、第
２図はこの考案の電圧検知器の一実施例　　′の構成を
示す回路図、第３図はこの考案の電圧検知器をガス絶縁
機器に適用した場合の断面図である。１・・・高圧電源、２・・・高電位部、３・・・電極、
４゜１’３．１２・・・浮遊容量、５・・・大地アース
、６．・・・入力インピーダンス、７・・・コンデンサ
、８・・・増幅部、９・・・充電ランプ、１０・・１１
范電ランプ、１６・・・枝管。なお、図中同一符号は同
一または相当部分を示す。補正　昭５７．８．９考案の名称を次のように補正する。０電圧検知器　　　　　　　　　− 実用新案登録請求の範囲を次のように補正するＯ実用新
案登録請求の範囲高電圧が印加される為電位部、この高電位部の電圧を静
電誘導により検出する電極、この電極に接続され電極に
静電誘導さ゛れた電圧により流れる電流に基づ（電圧を
発生するインピーダンス要素、このインピーダンス要素
の電圧が所定以上で所定の出力を出す信号処理手段、こ
の信号処理手段の。　耐電圧値を高める、た吟に基準電
位点と上記イー／、ｌｌ：′、。 −ダンス要素々の間に接続されたコンデンサ、上□−＝
＝：二〜′、″′：”−ｍ：’：’：Ｌ’ニー壽＝′を
備えてなる電圧検知器。　　−Figure 1 is a circuit diagram showing the input circuit of a conventional voltage detector, Figure 2 is a circuit diagram showing the configuration of an embodiment of the voltage detector of this invention, and Figure 3 is a circuit diagram of the voltage detector of this invention. It is a sectional view when applied to gas insulated equipment. 1... High voltage power supply, 2... High potential part, 3... Electrode,
4゜1'3.12... Stray capacitance, 5... Earth ground, 6. ...Input impedance, 7...Capacitor, 8...Amplification section, 9...Charging lamp, 10...11
Fan electric lamp, 16...branch pipe. Note that the same reference numerals in the figures indicate the same or corresponding parts. Amendment: August 9, 1982: The name of the invention is amended as follows. 0 Voltage Detector - Amend the scope of the utility model registration claims as followsO Utility Model Registration ClaimsA potential part to which a high voltage is applied, an electrode that detects the voltage of this high potential part by electrostatic induction, Based on the current that flows due to the voltage that is connected to this electrode and electrostatically induced in the electrode (an impedance element that generates a voltage, a signal processing means that outputs a predetermined output when the voltage of this impedance element exceeds a predetermined value, In order to increase the withstand voltage value, for example, the reference potential point and the above E/, ll:', . - capacitor connected between the dance elements, upper □ - =
A voltage detector comprising: =:2~', '':''-m:':':L'. −

Claims

[Scope of utility model registration request]

A high potential part to which a high voltage is applied, an electrode that detects the voltage of this high potential part by electrostatic induction, and an impedance element that is connected to this electrode and generates a voltage based on the current flowing due to the voltage electrostatically induced in the electrode. , a signal processing means that outputs a predetermined output when the voltage of the impedance element is equal to or higher than a predetermined value, a capacitor connected between the reference voltage point and the impedance element for increasing the withstand voltage value of the signal processing means, and the electrode. A high-voltage detector equipped with a card electrode that surrounds this electrode in order to eliminate capacitance between the electrode and the reference potential.