JPS60152293U - DC arc furnace control device - Google Patents

DC arc furnace control device

Info

Publication number
JPS60152293U
JPS60152293U JP1984040040U JP4004084U JPS60152293U JP S60152293 U JPS60152293 U JP S60152293U JP 1984040040 U JP1984040040 U JP 1984040040U JP 4004084 U JP4004084 U JP 4004084U JP S60152293 U JPS60152293 U JP S60152293U
Authority
JP
Japan
Prior art keywords
thyristor
arc
control device
phase
arc furnace
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
JP1984040040U
Other languages
Japanese (ja)
Inventor
修 小山
Original Assignee
株式会社東芝
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 株式会社東芝 filed Critical 株式会社東芝
Priority to JP1984040040U priority Critical patent/JPS60152293U/en
Publication of JPS60152293U publication Critical patent/JPS60152293U/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Discharge Heating (AREA)

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案の一実施例を示す直流アーク炉の制御装
置の構成図、第２図は第１−の電極制御補償回路の説明
図である。 １・・・炉用しゃ断器、２・・・変流器、３・・・整流
器用変圧器、４・・・サイリスタ整流装置、５・・・直
流アーク炉、６・・・可動電極、１０・・・サイリスタ
ゲート制御装置、１１・・・過電流検出器、１２・・・
位相制御装置、１３・・・ゲートパルス発生器、２ｏ・
・・電極位置制御装置、２１・・・位相角制御装置、２
２・・・ゲートパルス発生器ミ２３・・・サイリスタ制
御装置、２４・・・電動機、２５・・・減速機、３０・
・・アーク長検出器、３１・・・電極制御補償回路。FIG. 1 is a block diagram of a control device for a DC arc furnace showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram of a first electrode control compensation circuit. DESCRIPTION OF SYMBOLS 1... Furnace breaker, 2... Current transformer, 3... Rectifier transformer, 4... Thyristor rectifier, 5... DC arc furnace, 6... Movable electrode, 10 ...Thyristor gate control device, 11...Overcurrent detector, 12...
Phase control device, 13... gate pulse generator, 2o.
... Electrode position control device, 21 ... Phase angle control device, 2
2... Gate pulse generator 23... Thyristor control device, 24... Electric motor, 25... Speed reducer, 30...
...Arc length detector, 31... Electrode control compensation circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直流電流アークによって金属を溶解する直流アーク炉と
、この直流アーク炉に直流電流を供給するサイリスタ整
流装置と、このサイリスタ整流装置に供線される交流電
流値を計測する変流器と、この変流器の２次巻線電流に
よって前記直流アーク炉に流れるアーク電流を計測する
アーク電流検出器と、前記サイリスタ整流装置のサイリ
スタ点弧位相を制御するサイリスタ整流位相制御装置と
、前記サイリスタ整流装置の出力直流電圧を計測するア
ーク電圧検出器と、前記直流アーク炉の可動電極を駆動
する電動機と、この電動機を駆動する為に供給される電
源電圧を制御するサイリスタ装置と、このサイリスタ装
置のサイリスタ点弧位相を制御するサイリスタ位相制御
装置とからなる直流アーク炉の制御装置に於て、前記サ
イリスタ整流位相制御装置から出力された位相信号を前
記アーク電圧検出器から出力されたアーク電圧信号によ
って補償され、前記サイリスタ位相角御装置へ位相制御
信号を出力する電極制御補償回路を具備してなる直流ア
ーク炉の制御装置。A DC arc furnace that melts metal with a DC arc, a thyristor rectifier that supplies DC current to the DC arc furnace, a current transformer that measures the alternating current value connected to the thyristor rectifier, and this transformer. an arc current detector that measures the arc current flowing through the DC arc furnace based on the secondary winding current of the current transformer; a thyristor rectification phase control device that controls the thyristor firing phase of the thyristor rectifier; An arc voltage detector that measures output DC voltage, an electric motor that drives the movable electrode of the DC arc furnace, a thyristor device that controls the power supply voltage supplied to drive the electric motor, and a thyristor point of this thyristor device. In a control device for a DC arc furnace comprising a thyristor phase control device for controlling an arc phase, a phase signal output from the thyristor rectification phase control device is compensated by an arc voltage signal output from the arc voltage detector. , a control device for a DC arc furnace comprising an electrode control compensation circuit that outputs a phase control signal to the thyristor phase angle control device.
JP1984040040U 1984-03-22 1984-03-22 DC arc furnace control device Pending JPS60152293U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984040040U JPS60152293U (en) 1984-03-22 1984-03-22 DC arc furnace control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984040040U JPS60152293U (en) 1984-03-22 1984-03-22 DC arc furnace control device

Publications (1)

Publication Number Publication Date
JPS60152293U true JPS60152293U (en) 1985-10-09

Family

ID=30548551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984040040U Pending JPS60152293U (en) 1984-03-22 1984-03-22 DC arc furnace control device

Country Status (1)

Country Link
JP (1) JPS60152293U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02117093A (en) * 1988-10-25 1990-05-01 Nkk Corp Control of arc current for dc arc furnace
JPH02117092A (en) * 1988-10-25 1990-05-01 Nkk Corp Control of arc current for dc arc furnace

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345932A (en) * 1976-10-04 1978-04-25 Ibm Electronic printer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345932A (en) * 1976-10-04 1978-04-25 Ibm Electronic printer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02117093A (en) * 1988-10-25 1990-05-01 Nkk Corp Control of arc current for dc arc furnace
JPH02117092A (en) * 1988-10-25 1990-05-01 Nkk Corp Control of arc current for dc arc furnace

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