JPS5837732U - No-load switch for DC welding machine - Google Patents

No-load switch for DC welding machine

Info

Publication number
JPS5837732U
JPS5837732U JP1981131702U JP13170281U JPS5837732U JP S5837732 U JPS5837732 U JP S5837732U JP 1981131702 U JP1981131702 U JP 1981131702U JP 13170281 U JP13170281 U JP 13170281U JP S5837732 U JPS5837732 U JP S5837732U
Authority
JP
Japan
Prior art keywords
welding machine
load
load switch
secondary voltage
detection means
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
JP1981131702U
Other languages
Japanese (ja)
Inventor
辰浜　真一
大谷　正興
Original Assignee
石川島播磨重工業株式会社
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 石川島播磨重工業株式会社 filed Critical 石川島播磨重工業株式会社
Priority to JP1981131702U priority Critical patent/JPS5837732U/en
Publication of JPS5837732U publication Critical patent/JPS5837732U/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)
  • Emergency Protection Circuit Devices (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) [Summary] 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 the drawing]

第１図は本考案に係る直流溶接機用無負荷開閉器の一実
施例を示す回路図、第２図は整流器式の直流溶接機にお
ける２次側端子電圧と電流との関係を示すグラフである
。 ２・・・直流溶接機、１０．１１・・・リレー、１２・
・・変圧器、１３・・・整流器、２０・・・ダイオード
、３０・・・電圧検出用リレー、１０ａ、　　１０ａ’
　、　　１０ａ″・・・ａ接点、１０ｂ、１０ｂ’・・
・ｂ接点。Figure 1 is a circuit diagram showing an embodiment of a no-load switch for a DC welding machine according to the present invention, and Figure 2 is a graph showing the relationship between secondary terminal voltage and current in a rectifier type DC welding machine. be. 2...DC welding machine, 10.11...Relay, 12.
...Transformer, 13... Rectifier, 20... Diode, 30... Voltage detection relay, 10a, 10a'
, 10a''...A contact, 10b, 10b'...
・B contact.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）整流器式の直流溶接機における無負荷時の２次側
電圧と負荷時の２次側電圧との間の所定値に設定された
基準電圧と前記直流溶接機の２次側電圧とを比較し、該
比較に基づき前記直流溶接機の無負荷状態を検出する無
負荷検出手段と、該無負荷検出手段の検出出力によって
前記直流溶接機に供給される交流電源を遮断する遮断手
段とを具えたことを特徴とする直流溶接機用開閉器。(1) The reference voltage set to a predetermined value between the secondary voltage at no load and the secondary voltage at load in the rectifier-type DC welding machine and the secondary voltage of the DC welding machine. a no-load detection means for comparing and detecting a no-load state of the DC welding machine based on the comparison; and a cutoff means for cutting off the AC power supplied to the DC welding machine based on the detection output of the no-load detection means. A switch for a DC welding machine, which is characterized by: （２）前記遮断手段は、前記無負荷検出手段の検出出力
によって動作するリレー回路である実用新案登録請求の
範囲第（１）項記載の直流溶接機用開閉器。(2) The switch for a DC welding machine according to claim 1, wherein the cutoff means is a relay circuit operated by the detection output of the no-load detection means.
JP1981131702U 1981-09-04 1981-09-04 No-load switch for DC welding machine Pending JPS5837732U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981131702U JPS5837732U (en) 1981-09-04 1981-09-04 No-load switch for DC welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981131702U JPS5837732U (en) 1981-09-04 1981-09-04 No-load switch for DC welding machine

Publications (1)

Publication Number Publication Date
JPS5837732U true JPS5837732U (en) 1983-03-11

Family

ID=29925271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981131702U Pending JPS5837732U (en) 1981-09-04 1981-09-04 No-load switch for DC welding machine

Country Status (1)

Country Link
JP (1) JPS5837732U (en)

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