JPS5788750A - Leakage current monitor - Google Patents
Leakage current monitorInfo
- Publication number
- JPS5788750A JPS5788750A JP16430180A JP16430180A JPS5788750A JP S5788750 A JPS5788750 A JP S5788750A JP 16430180 A JP16430180 A JP 16430180A JP 16430180 A JP16430180 A JP 16430180A JP S5788750 A JPS5788750 A JP S5788750A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- leakage current
- cooling water
- scr
- electrodes
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Thyristors (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Rectifiers (AREA)
Abstract
PURPOSE:To monitor leakage current running in accordance with the conductivity of cooling water for safe operation of SCR, by providing a grid-shaped metal electrode in a cooling pipe of SCR and by making it contact with the cooling water. CONSTITUTION:Electrodes 8 are provided in the upper and lower parts of a metallic connection pipe 10 connecting an insulation pipe 6 and a circulation pipe 9 made of vinyl chloride with each other and are fitted by means of packings 11 and fastening bolts 12. An ammeter 14 is connected 13 to the electrodes 8. The electrodes 8 are grid-shaped, while the connection pipe 10 is insulated a grounded board 7 by a gap G. By this constitution, when metal ions flowing out from a metallic cooling pipe in SCR sticks to the inside surface of the insulation pipe, the deterioration of insulation can be detected easily from leakage current, while the uncleanness of the cooling water and the mixing-in of alien substances can be detected from the change in the leakage current caused in accordance with that of the conductivity of the cooling water itself, whereby the device can be operated with high reliability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16430180A JPS5788750A (en) | 1980-11-21 | 1980-11-21 | Leakage current monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16430180A JPS5788750A (en) | 1980-11-21 | 1980-11-21 | Leakage current monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5788750A true JPS5788750A (en) | 1982-06-02 |
Family
ID=15790513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16430180A Pending JPS5788750A (en) | 1980-11-21 | 1980-11-21 | Leakage current monitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5788750A (en) |
-
1980
- 1980-11-21 JP JP16430180A patent/JPS5788750A/en active Pending
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