JPS6320068U - - Google Patents

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Publication number
JPS6320068U
JPS6320068U JP11265586U JP11265586U JPS6320068U JP S6320068 U JPS6320068 U JP S6320068U JP 11265586 U JP11265586 U JP 11265586U JP 11265586 U JP11265586 U JP 11265586U JP S6320068 U JPS6320068 U JP S6320068U
Authority
JP
Japan
Prior art keywords
voltage
phase
voltage comparator
conductor
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11265586U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP11265586U priority Critical patent/JPS6320068U/ja
Publication of JPS6320068U publication Critical patent/JPS6320068U/ja
Pending legal-status Critical Current

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  • Transmission And Conversion Of Sensor Element Output (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の回路図、第２図は本考案の位
相検出回路を有する位相検出器の一例を示す正面
図である。 １……導線、２……絶縁外被、３……検出用電
極、４，５……抵抗、６……電圧比較器、７……
アース、８……接続シールド線のアース、９……
抵抗。 FIG. 1 is a circuit diagram of the present invention, and FIG. 2 is a front view showing an example of a phase detector having a phase detection circuit of the present invention. 1... Conductor wire, 2... Insulating jacket, 3... Detection electrode, 4, 5... Resistor, 6... Voltage comparator, 7...
Earth, 8... Connection shield wire ground, 9...
resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 位相検出の目的で三相交流線路の各導線に検出
用電極を直接接続するか、導線の絶縁外被に近接
させるかして、外被や空隙を誘電体ないし高抵抗
体として各導線の電位を直接あるいは間接に取り
出す３つの電極に、プラス、マイナス２端子の高
い入力インピーダンスを持つた電圧比較回路を各
電極にそれぞれ設け、これらの各電圧比較回路の
入力端子のプラスかマイナスの一方に、前記検出
用電極の電圧をそれぞれ印加すると共に、それら
の電極の電圧を十分に高いインピーダンスの抵抗
ないしコンデンサーで形成したＹ型ブリツジの３
個の解放端にもそれぞれ印加し、このＹ型ブリツ
ジの中心の接続点の電圧を前記の各電圧比較回路
の他方の入力端子にそれぞれ印加し、これら各電
圧比較回路の電圧比較器の出力電圧パルスの時間
的前後関係により前記三相交流線路に印加された
交流電圧の位相回転方向を検知するようにしたこ
とを特徴とする位相検出回路。 For the purpose of phase detection, a detection electrode is connected directly to each conductor of a three-phase AC line, or it is placed close to the insulating jacket of the conductor, and the potential of each conductor is measured using the jacket or air gap as a dielectric or high-resistance body. A voltage comparator circuit with a high input impedance with two terminals, positive and negative, is provided on each of the three electrodes from which the voltage is taken out directly or indirectly, and one of the input terminals of each of these voltage comparator circuits is connected to the positive or negative terminal. A Y-shaped bridge formed by a resistor or a capacitor with sufficiently high impedance is used to apply the voltage to each of the detection electrodes, and to apply the voltage to each electrode.
The voltage at the center connection point of this Y-shaped bridge is applied to the other input terminal of each of the voltage comparator circuits, and the output voltage of the voltage comparator of each of these voltage comparator circuits is A phase detection circuit characterized in that the phase rotation direction of the AC voltage applied to the three-phase AC line is detected based on the temporal relationship of the pulses.
JP11265586U 1986-07-24 1986-07-24 Pending JPS6320068U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11265586U JPS6320068U (en) 1986-07-24 1986-07-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11265586U JPS6320068U (en) 1986-07-24 1986-07-24

Publications (1)

Publication Number Publication Date
JPS6320068U true JPS6320068U (en) 1988-02-09

Family

ID=30993731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11265586U Pending JPS6320068U (en) 1986-07-24 1986-07-24

Country Status (1)

Country Link
JP (1) JPS6320068U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011242195A (en) * 2010-05-17 2011-12-01 Hokkaido Electric Power Co Inc:The Phase discrimination method and phase discrimination apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487578A (en) * 1977-12-23 1979-07-12 Matsushita Electric Ind Co Ltd Antiphase detector
JPS5890181A (en) * 1981-11-26 1983-05-28 Tohoku Electric Power Co Inc Phase detector for specially-high voltage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487578A (en) * 1977-12-23 1979-07-12 Matsushita Electric Ind Co Ltd Antiphase detector
JPS5890181A (en) * 1981-11-26 1983-05-28 Tohoku Electric Power Co Inc Phase detector for specially-high voltage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011242195A (en) * 2010-05-17 2011-12-01 Hokkaido Electric Power Co Inc:The Phase discrimination method and phase discrimination apparatus

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