JPS57203113A - Automatic voltage adjuster - Google Patents

Automatic voltage adjuster

Info

Publication number
JPS57203113A
JPS57203113A JP9007581A JP9007581A JPS57203113A JP S57203113 A JPS57203113 A JP S57203113A JP 9007581 A JP9007581 A JP 9007581A JP 9007581 A JP9007581 A JP 9007581A JP S57203113 A JPS57203113 A JP S57203113A
Authority
JP
Japan
Prior art keywords
circuit
tap
deltav
signal
commutation
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
JP9007581A
Other languages
Japanese (ja)
Inventor
Masatoshi Takeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9007581A priority Critical patent/JPS57203113A/en
Publication of JPS57203113A publication Critical patent/JPS57203113A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/32—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices
    • G05F1/34—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices combined with discharge tubes or semiconductor devices
    • G05F1/38—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE:To eliminate the need for flowing of an unnecessarily large commutating current, by stopping a tap changeover to a large load current exceeding the capability of commutation and performing the tap changeover only for a load current within the range of commutation. CONSTITUTION:A voltage fluctuation detecting circuit 17 detects a deviation DELTAV to a reference voltage of the secondary voltage V4 of a PT 15, the detected value DELTAV is compared with an upper limit +VS and a lower limit -VS with comparison circuits 18 and 19, and a tap-down signal S1 is transmitted from the circuit 18, when the DELTAV is greater than the upper limit value. A tap-up signal S2 is transmitted from the circuit 19 when the DELTAV is smaller than the lower limit -VS inversely. A load overcurrent detecting circuit 23 receives a current detected at a CT15 ad transmits a tap changeover stop signal S3 to an AND circuit 22 when a load current IL2 exceeds a commutation capability level ILmax, and when this signal S3 is given, a circuit 22 blocks a timing signal TP to stop the tap changeover.
JP9007581A 1981-06-08 1981-06-08 Automatic voltage adjuster Pending JPS57203113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9007581A JPS57203113A (en) 1981-06-08 1981-06-08 Automatic voltage adjuster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9007581A JPS57203113A (en) 1981-06-08 1981-06-08 Automatic voltage adjuster

Publications (1)

Publication Number Publication Date
JPS57203113A true JPS57203113A (en) 1982-12-13

Family

ID=13988398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9007581A Pending JPS57203113A (en) 1981-06-08 1981-06-08 Automatic voltage adjuster

Country Status (1)

Country Link
JP (1) JPS57203113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020500392A (en) * 2016-11-23 2020-01-09 マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Switching module control method based on thyristor switch elements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913648A (en) * 1972-03-25 1974-02-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913648A (en) * 1972-03-25 1974-02-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020500392A (en) * 2016-11-23 2020-01-09 マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Switching module control method based on thyristor switch elements

Similar Documents

Publication Publication Date Title
AU3507589A (en) Voltage controlling and indicating device
JPS56121363A (en) Gate circuit for thyristor
JPS57203113A (en) Automatic voltage adjuster
JPS5418663A (en) Gate control unit for thyristor valve
JPS57211421A (en) Wire cut discharge machining power source equipment
ATE130957T1 (en) SELECTIVE SHORT CIRCUIT CURRENT PROTECTION DEVICE.
JPS5757035A (en) Radio device
JPS54113038A (en) Dc power supply circuit
JPS5668276A (en) Inverter output decreasing system
JPS57176401A (en) Malfunction preventing system for alarm circuit at input power supply application
JPS5292327A (en) Suspension system for converter
JPS5479442A (en) Starting system of static type reactive power regulating device
JPS57173378A (en) Operating method for inverter
JPS5785580A (en) Controlling method for cycloconverter
JPS5532134A (en) Control system for power converter
JPS5746681A (en) Inverter circuit
JPS55125080A (en) Controlling method for power conversion unit
JPS57113604A (en) Protecting device for power amplifier
JPS57126274A (en) Protecting system for converter
JPS53131447A (en) Control of power invertor in use for power trfnsmission
JPS5288744A (en) Load concentrating control type receiver
JPS57211982A (en) Self-excited inverter device
JPS54131736A (en) Change over system between different ac power supply system
JPS57113776A (en) Inverter protective circuit
JPS53107635A (en) Controller for dc power transmission system