JPH0425444U - - Google Patents

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Publication number
JPH0425444U
JPH0425444U JP6452390U JP6452390U JPH0425444U JP H0425444 U JPH0425444 U JP H0425444U JP 6452390 U JP6452390 U JP 6452390U JP 6452390 U JP6452390 U JP 6452390U JP H0425444 U JPH0425444 U JP H0425444U
Authority
JP
Japan
Prior art keywords
power supply
circuit
switch
power source
supply path
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
JP6452390U
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 JP6452390U priority Critical patent/JPH0425444U/ja
Publication of JPH0425444U publication Critical patent/JPH0425444U/ja
Pending legal-status Critical Current

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  • Stand-By Power Supply Arrangements (AREA)

Description

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

第１図は本考案の直列補償形瞬時電圧低下補償
装置の１実施例の結線図、第２図は従来例の結線
図である。 １……交流電源、２……負荷、３Ｂ……入力側
開閉器、４Ｂ……補償部、５Ｂ……出力側開閉器
、６Ｂ……主給電路、８Ｂ……バイパス給電路、
９……サイリスタスイツチ回路、１０……バツク
アツプスイツチ、１１……インバータ回路、１２
……制御回路、１３……切離用遅延回路。 FIG. 1 is a wiring diagram of one embodiment of the series compensation type instantaneous voltage drop compensator of the present invention, and FIG. 2 is a wiring diagram of a conventional example. 1...AC power supply, 2...Load, 3B...Input side switch, 4B...Compensation section, 5B...Output side switch, 6B...Main power supply path, 8B...Bypass power supply path,
9... Thyristor switch circuit, 10... Backup switch, 11... Inverter circuit, 12
...Control circuit, 13...Delay circuit for disconnection.

Claims (1)

【実用新案登録請求の範囲】 交流電源と負荷との間に入力側開閉器、補償部
、出力側開閉器を直列接続した主給電路を設ける
とともに、前記主給電路に並列に前記補償部のバ
ツクアツプスイツチからなる常開のバイパス給電
路を設け、 前記補償部に、 前記交流電源の電圧正常時に駆動されて前記交
流電源の常給電路を形成するサイリスタスイツチ
回路と、 前記サイリスタスイツチ回路に並列に設けられ
、前記交流電源の瞬時電圧低下発生時に駆動され
て電圧低下量相当の補償交流を形成し前記交流電
源と前記補償交流とを直列合成して前記負荷に供
給するインバータ回路と、 前記交流電源の電圧監視に基づき前記サイリス
タスイツチ回路、前記インバータ回路を択一的に
選択して駆動し、前記補償部の故障検出に基づき
前記バツクアツプスイツチを閉成する制御回路と
、 前記制御回路から出力される前記バツクアツプ
スイツチの閉制御信号を所定時間遅延して補償部
切離用の開制御信号を形成し、前記開制御信号に
より前記入力側開閉器、前記出力側開閉器を開放
する切離遅延回路と を設けた直列補償形瞬時電圧低下補償装置。[Claims for Utility Model Registration] A main power supply path in which an input side switch, a compensation section, and an output side switch are connected in series is provided between the AC power supply and the load, and the compensation section is connected in parallel to the main power supply path. A normally open bypass power supply path consisting of a backup switch is provided, and the compensator includes a thyristor switch circuit that is driven when the voltage of the AC power source is normal to form a normal power supply path for the AC power source, and a thyristor switch circuit that is parallel to the thyristor switch circuit. an inverter circuit that is provided in the AC power source and is driven when an instantaneous voltage drop occurs in the AC power source to form a compensating AC corresponding to the amount of voltage drop, synthesizes the AC power source and the compensating AC in series, and supplies the synthesized AC to the load; a control circuit that selectively drives the thyristor switch circuit and the inverter circuit based on voltage monitoring of a power supply, and closes the backup switch based on failure detection of the compensator; and an output from the control circuit. A closing control signal for the backup switch to be opened is delayed for a predetermined period of time to form an opening control signal for disconnecting the compensator, and the opening control signal opens the input side switch and the output side switch. A series compensation type instantaneous voltage drop compensator equipped with a delay circuit.
JP6452390U 1990-06-18 1990-06-18 Pending JPH0425444U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6452390U JPH0425444U (en) 1990-06-18 1990-06-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6452390U JPH0425444U (en) 1990-06-18 1990-06-18

Publications (1)

Publication Number Publication Date
JPH0425444U true JPH0425444U (en) 1992-02-28

Family

ID=31595548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6452390U Pending JPH0425444U (en) 1990-06-18 1990-06-18

Country Status (1)

Country Link
JP (1) JPH0425444U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11178243A (en) * 1997-12-16 1999-07-02 Mitsubishi Electric Corp Uninterruptible power supply unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6295940A (en) * 1985-10-22 1987-05-02 三菱電機株式会社 Non-interruption electric source
JPH01259738A (en) * 1988-04-08 1989-10-17 Fuji Electric Co Ltd Inverter apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6295940A (en) * 1985-10-22 1987-05-02 三菱電機株式会社 Non-interruption electric source
JPH01259738A (en) * 1988-04-08 1989-10-17 Fuji Electric Co Ltd Inverter apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11178243A (en) * 1997-12-16 1999-07-02 Mitsubishi Electric Corp Uninterruptible power supply unit

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