JPH0287573U - - Google Patents
Info
- Publication number
- JPH0287573U JPH0287573U JP16889888U JP16889888U JPH0287573U JP H0287573 U JPH0287573 U JP H0287573U JP 16889888 U JP16889888 U JP 16889888U JP 16889888 U JP16889888 U JP 16889888U JP H0287573 U JPH0287573 U JP H0287573U
- Authority
- JP
- Japan
- Prior art keywords
- detects
- current
- secondary coil
- grounding
- detection circuit
- 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
Links
Landscapes
- General Induction Heating (AREA)
Description
図は本考案の実施例による高周波溶接装置のブ
ロツク図である。
１……高周波電源である高周波発生器、２……
出力変流器、２ａ……１次コイル、２ｂ……２次
コイル、３……ワークコイル、４……被溶接物体
であるパイプ、５……インピーダンス素子、６…
…変流器、７……接地電流検出回路、８……接地
電流設定器、９……比較器、１０……トリツプ回
路、１１……異常表示器、１２……警報器、１３
……鑑視回路。
The figure is a block diagram of a high frequency welding device according to an embodiment of the present invention. 1...High frequency generator which is a high frequency power supply, 2...
Output current transformer, 2a...Primary coil, 2b...Secondary coil, 3...Work coil, 4...Pipe which is the object to be welded, 5...Impedance element, 6...
... Current transformer, 7 ... Ground current detection circuit, 8 ... Ground current setting device, 9 ... Comparator, 10 ... Trip circuit, 11 ... Abnormality indicator, 12 ... Alarm, 13
...Visitor circuit.
Claims (1)
２次コイルに溶接電流供給部材を接続し、この溶
接電流供給部材を介して被溶接物体を溶接すると
共に、溶接時の異常を検出して電源をトリツプす
る鑑視保護装置において、 前記出力変流器の２次コイルの接地電流を検出
する接地電流検出回路と、接地電流通常値に対す
る前記出力変流器の負荷側の状態による前記接地
電流検出回路の検出信号の変化を検出する比較器
の検出信号に応じて異常を検出する警報表示器と
、前記比較器の検出信号に応じて前記高周波電源
をトリツプするトリツプ回路からなる鑑視回路を
備えていることを特徴とする高周波溶接装置の鑑
視保護装置。[Claims for Utility Model Registration] A welding current supply member is connected to the secondary coil of an output current transformer connected to the output side of a high frequency power source, and an object to be welded is welded via this welding current supply member, A visual protection device that detects an abnormality during welding and trips the power supply includes a grounding current detection circuit that detects the grounding current of the secondary coil of the output current transformer, and a grounding current detection circuit that detects the grounding current of the secondary coil of the output current transformer, and a grounding current detection circuit that detects the grounding current of the secondary coil of the output current transformer; an alarm indicator that detects an abnormality in response to a detection signal from a comparator that detects a change in the detection signal of the ground current detection circuit due to a load-side condition; and a warning indicator that trips the high-frequency power source in response to the detection signal of the comparator. A visual protection device for high frequency welding equipment, characterized in that it is equipped with a visual circuit consisting of a trip circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16889888U JPH0287573U (en) | 1988-12-26 | 1988-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16889888U JPH0287573U (en) | 1988-12-26 | 1988-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0287573U true JPH0287573U (en) | 1990-07-11 |
Family
ID=31458480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16889888U Pending JPH0287573U (en) | 1988-12-26 | 1988-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0287573U (en) |
-
1988
- 1988-12-26 JP JP16889888U patent/JPH0287573U/ja active Pending
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