JPS5527972A - Insulating resistance measurement device - Google Patents
Insulating resistance measurement deviceInfo
- Publication number
- JPS5527972A JPS5527972A JP10154178A JP10154178A JPS5527972A JP S5527972 A JPS5527972 A JP S5527972A JP 10154178 A JP10154178 A JP 10154178A JP 10154178 A JP10154178 A JP 10154178A JP S5527972 A JPS5527972 A JP S5527972A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- voltage
- insulating resistance
- resistor
- earthing line
- 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
- Measurement Of Resistance Or Impedance (AREA)
Abstract
PURPOSE: A simple protector device is provided to electrically separate amplifier from earthing line, thereby to protect amplifier from failure when voltage across impedance elements exceeds a specified value or the amplifier is overloaded.
CONSTITUTION: When measuring voltage from oscillator 1 is applied through amplifier 2 to active earthing line EL, feedback current passes in earthing line EL through insulating resistance R and floating capacitance C. The feedback current is detected by measuring resistor 5 and filter 6 to provide a measured value of insulating resistance. That is, comparator 20 receives voltage across the wiring on the amplifier 2 side of sending transformer 3 and compares it with a specified voltage. For example, when sending resistor 4 is short circuited, voltage across resistor 19 increases, and if it exceeds a specified value, the comparator actuates relay 21, and the amplifier 2 is protected.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10154178A JPS5527972A (en) | 1978-08-21 | 1978-08-21 | Insulating resistance measurement device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10154178A JPS5527972A (en) | 1978-08-21 | 1978-08-21 | Insulating resistance measurement device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5527972A true JPS5527972A (en) | 1980-02-28 |
Family
ID=14303287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10154178A Pending JPS5527972A (en) | 1978-08-21 | 1978-08-21 | Insulating resistance measurement device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5527972A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821869U (en) * | 1981-08-03 | 1983-02-10 | 株式会社トクヤマ | High voltage insulation resistance measuring device |
JPH06241233A (en) * | 1992-10-09 | 1994-08-30 | Internatl Business Mach Corp <Ibm> | Ball-bearing device |
-
1978
- 1978-08-21 JP JP10154178A patent/JPS5527972A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821869U (en) * | 1981-08-03 | 1983-02-10 | 株式会社トクヤマ | High voltage insulation resistance measuring device |
JPH06241233A (en) * | 1992-10-09 | 1994-08-30 | Internatl Business Mach Corp <Ibm> | Ball-bearing device |
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