JPS62137595U - - Google Patents
Info
- Publication number
- JPS62137595U JPS62137595U JP2538786U JP2538786U JPS62137595U JP S62137595 U JPS62137595 U JP S62137595U JP 2538786 U JP2538786 U JP 2538786U JP 2538786 U JP2538786 U JP 2538786U JP S62137595 U JPS62137595 U JP S62137595U
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- heater
- resistor
- leakage
- detected
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図は、この考案の一実施例を示す回路図、
第２図は、この考案の変更例を示す回路図である
。 １０……ヒータ用変圧器、１４……電気炉、１
６……ヒータ、２８……接地回路。
第２図は、この考案の変更例を示す回路図である
。 １０……ヒータ用変圧器、１４……電気炉、１
６……ヒータ、２８……接地回路。
Claims (1)
- ヒータ用変圧器の二次側中点を抵抗を介して接
地し、この接地回路に流れる電流を検出して、放
電または漏電を検出するようにしたことを特徴と
する電気ヒータの加熱炉の放電検出装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2538786U JPS62137595U (ja) | 1986-02-24 | 1986-02-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2538786U JPS62137595U (ja) | 1986-02-24 | 1986-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62137595U true JPS62137595U (ja) | 1987-08-29 |
Family
ID=30825494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2538786U Pending JPS62137595U (ja) | 1986-02-24 | 1986-02-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62137595U (ja) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467657A (en) * | 1977-11-09 | 1979-05-31 | Fujiwa Denki Kk | Ground fault detector |
| JPS5482048A (en) * | 1977-11-07 | 1979-06-29 | Gen Electric | Ground trouble protection system |
| JPS5523431A (en) * | 1978-08-09 | 1980-02-19 | Toshiba Corp | Fault detector |
| JPS56150923A (en) * | 1980-04-24 | 1981-11-21 | Tokyo Shibaura Electric Co | Ground-fault detector for airport lamp firing circuit |
| JPS6132375A (ja) * | 1984-07-24 | 1986-02-15 | 石川島播磨重工業株式会社 | 電気炉保護装置 |
| JPS6135113A (ja) * | 1984-07-25 | 1986-02-19 | 石川島播磨重工業株式会社 | 高温炉の漏電検出装置 |
-
1986
- 1986-02-24 JP JP2538786U patent/JPS62137595U/ja active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5482048A (en) * | 1977-11-07 | 1979-06-29 | Gen Electric | Ground trouble protection system |
| JPS5467657A (en) * | 1977-11-09 | 1979-05-31 | Fujiwa Denki Kk | Ground fault detector |
| JPS5523431A (en) * | 1978-08-09 | 1980-02-19 | Toshiba Corp | Fault detector |
| JPS56150923A (en) * | 1980-04-24 | 1981-11-21 | Tokyo Shibaura Electric Co | Ground-fault detector for airport lamp firing circuit |
| JPS6132375A (ja) * | 1984-07-24 | 1986-02-15 | 石川島播磨重工業株式会社 | 電気炉保護装置 |
| JPS6135113A (ja) * | 1984-07-25 | 1986-02-19 | 石川島播磨重工業株式会社 | 高温炉の漏電検出装置 |