SE7908901L - CAPACITIVE AC POWER DIVIDERS - Google Patents
CAPACITIVE AC POWER DIVIDERSInfo
- Publication number
- SE7908901L SE7908901L SE7908901A SE7908901A SE7908901L SE 7908901 L SE7908901 L SE 7908901L SE 7908901 A SE7908901 A SE 7908901A SE 7908901 A SE7908901 A SE 7908901A SE 7908901 L SE7908901 L SE 7908901L
- Authority
- SE
- Sweden
- Prior art keywords
- voltage
- measuring signal
- component
- measuring
- voltage component
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 abstract 4
- 238000009795 derivation Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/04—Voltage dividers
- G01R15/06—Voltage dividers having reactive components, e.g. capacitive transformer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Amplifiers (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Networks Using Active Elements (AREA)
Abstract
A capacitive voltage divider, for instance for medium or high voltage, comprising a series circuit of at least two capacitors C1, C2, one of which serves as a measuring capacitor C2, which series circuit may be connected between a primary voltage and a reference voltage whereby a measuring signal is derived from the measuring capacitor C2 as a secondary voltage, which measuring signal may consist of an A.C. voltage component and an unwanted D.C. voltage component and wherein a leakage inpedance R1 has been connected across the measuring capacitor for discharging the D.C. voltage component, including control means for the reception of the measuring signal and the derivation of the true unwanted D.C. voltage component from the measuring signal, characterized by compensating means for receiving the measuring signal and for compensating the D.C. voltage component in the measuring signal with the said derived true D.C. voltage component. As shown, filter F1 blocks the D.C. component so that comparator D provides only the D.C. component to a logic circuit B1 which closes S1 or S2 (depending on polarity) C3 is thus charged from a source Vref1 or Vref2. When C3 is charged to the mains voltage as C2, comparator D gives zero output, opening S1 or S2 and the measuring signal output is free from D.C. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7810695,A NL184588C (en) | 1978-10-26 | 1978-10-26 | CAPACITIVE VOLTAGE DIVIDER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7908901L true SE7908901L (en) | 1980-04-27 |
| SE439201B SE439201B (en) | 1985-06-03 |
Family
ID=19831782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7908901A SE439201B (en) | 1978-10-26 | 1979-10-26 | CAPACITIVE VOLTAGE PARTS |
Country Status (7)
| Country | Link |
|---|---|
| CH (1) | CH643363A5 (en) |
| DE (1) | DE2943403C2 (en) |
| FR (1) | FR2439997A1 (en) |
| GB (1) | GB2037440B (en) |
| IT (1) | IT1119471B (en) |
| NL (1) | NL184588C (en) |
| SE (1) | SE439201B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0355498A1 (en) * | 1988-08-18 | 1990-02-28 | AEG Sachsenwerk GmbH | Insulating device, especially as a bearing insulator in a voltage divider for high-voltage plants |
| DE19613688A1 (en) * | 1996-04-05 | 1997-10-09 | Habemus Electronic & Transfer | Low voltage measurement device |
| DE19648230C2 (en) * | 1996-11-21 | 1999-11-04 | Strauss System Elektronik Gmbh | Capacitive AC voltage divider |
| DE102016208960B3 (en) | 2016-05-24 | 2017-11-09 | Continental Automotive Gmbh | Monitoring device and method for monitoring a relative to a reference potential galvanically decoupled AC voltage source |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3452217A (en) * | 1965-12-27 | 1969-06-24 | Ibm | Compensating reset circuit |
| GB1283172A (en) * | 1970-05-13 | 1972-07-26 | Iwatsu Electric Co Ltd | Direct-current amplifying circuit |
| NL7504686A (en) * | 1975-04-21 | 1976-10-25 | Philips Nv | Zero correction for electronic measuring system - used e.g. for measuring blood pressure is fully electronic and automatic in operation |
| DE2634595A1 (en) * | 1975-08-05 | 1977-03-03 | Gen Electric | Regulation of high alternating voltages in transmission lines - has capacitor voltage divider supplying monitor via full wave rectifier |
-
1978
- 1978-10-26 NL NLAANVRAGE7810695,A patent/NL184588C/en not_active IP Right Cessation
-
1979
- 1979-10-24 GB GB7936876A patent/GB2037440B/en not_active Expired
- 1979-10-25 FR FR7926504A patent/FR2439997A1/en active Granted
- 1979-10-26 CH CH964179A patent/CH643363A5/en not_active IP Right Cessation
- 1979-10-26 SE SE7908901A patent/SE439201B/en not_active IP Right Cessation
- 1979-10-26 DE DE2943403A patent/DE2943403C2/en not_active Expired
- 1979-10-26 IT IT69082/79A patent/IT1119471B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| SE439201B (en) | 1985-06-03 |
| DE2943403C2 (en) | 1982-12-16 |
| NL7810695A (en) | 1980-04-29 |
| NL184588B (en) | 1989-04-03 |
| GB2037440A (en) | 1980-07-09 |
| FR2439997B1 (en) | 1983-04-15 |
| IT1119471B (en) | 1986-03-10 |
| IT7969082A0 (en) | 1979-10-26 |
| CH643363A5 (en) | 1984-05-30 |
| FR2439997A1 (en) | 1980-05-23 |
| DE2943403A1 (en) | 1980-06-12 |
| NL184588C (en) | 1989-09-01 |
| GB2037440B (en) | 1983-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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