JPS6420463A - System charge and discharge testing method for transformer for three-phase measuring instrument - Google Patents
System charge and discharge testing method for transformer for three-phase measuring instrumentInfo
- Publication number
- JPS6420463A JPS6420463A JP62176740A JP17674087A JPS6420463A JP S6420463 A JPS6420463 A JP S6420463A JP 62176740 A JP62176740 A JP 62176740A JP 17674087 A JP17674087 A JP 17674087A JP S6420463 A JPS6420463 A JP S6420463A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- capacitor
- measuring instrument
- primary winding
- transformer
- 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.)
- Granted
Links
Abstract
PURPOSE:To simulate a residual charge state by discharge from one capacitor, by connecting in parallel a primary winding of each phase so that the direction of a magnetic flux generated by a primary winding of one phase becomes opposite to the other phase. CONSTITUTION:One (PCw in the figure) of primary winding PCu, PCv and PCw of each phase of a measuring instrument transformer VT is connected in parallel so that a magnetic flux phiw becomes opposite to magnetic fluxes phiu, phiv of other phase, when currents Iu, Iv and Iw have flowed in the same direction. As a result, by discharge from one capacitor C, the same state as the time when a line of each phase is opened from a three phase AC power source can be simulated. A necessary residual charge state can be simulated by using a high voltage DC power source DC and one piece of capacitor C, therefore, a testing device can be simplified and miniaturized. A test is executed by charging the capacitor C up to a peak voltage of an AC voltage in a system by closing a switch SW1, and closing an SW2 simultaneously with opening the switch SW1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62176740A JP2508107B2 (en) | 1987-07-15 | 1987-07-15 | System Charge Discharge Test Method for Three-Phase Grounded Instrument Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62176740A JP2508107B2 (en) | 1987-07-15 | 1987-07-15 | System Charge Discharge Test Method for Three-Phase Grounded Instrument Transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6420463A true JPS6420463A (en) | 1989-01-24 |
| JP2508107B2 JP2508107B2 (en) | 1996-06-19 |
Family
ID=16018970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62176740A Expired - Fee Related JP2508107B2 (en) | 1987-07-15 | 1987-07-15 | System Charge Discharge Test Method for Three-Phase Grounded Instrument Transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508107B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2827388A1 (en) * | 2001-07-10 | 2003-01-17 | Alstom | Single current measurement in three phase line for verifying connected transformers ratio and corresponding secondary winding connection, uses current transformers, summation circuit and selector circuit |
| US11088525B2 (en) | 2016-06-16 | 2021-08-10 | Murata Manufacturing Co., Ltd. | Grommet, battery pack, and electronic apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499754B (en) * | 2013-09-25 | 2016-01-27 | 南京能迪电气技术有限公司 | For the method for real time on-line monitoring power capacitor bank running status |
-
1987
- 1987-07-15 JP JP62176740A patent/JP2508107B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2827388A1 (en) * | 2001-07-10 | 2003-01-17 | Alstom | Single current measurement in three phase line for verifying connected transformers ratio and corresponding secondary winding connection, uses current transformers, summation circuit and selector circuit |
| US11088525B2 (en) | 2016-06-16 | 2021-08-10 | Murata Manufacturing Co., Ltd. | Grommet, battery pack, and electronic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2508107B2 (en) | 1996-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104793028B (en) | A kind of three-phase multifunctional test power device and its test method | |
| JPS6420463A (en) | System charge and discharge testing method for transformer for three-phase measuring instrument | |
| JPS645265B2 (en) | ||
| CN109521390A (en) | A kind of SV sampling circuit test macro and method for intelligent substation | |
| CN87210501U (en) | High-tension switchgear testing apparatus | |
| JPS5958374U (en) | High voltage instrument connection inspection equipment | |
| JPS57203967A (en) | Digital meter of voltage, current and phase defference | |
| CN206378555U (en) | A kind of capacitance type potential transformer polarity test device | |
| GB1391636A (en) | Voltage breakdown test circuit for switch testing | |
| JPS60185178A (en) | Composite breaking test circuit of breaker | |
| SU815817A1 (en) | Device for relay protection with checking its current elements under load | |
| SU1647470A1 (en) | Device for testing heavy-duty transformers under short-circuit conditions | |
| GB1506607A (en) | Measuring arrangement for dc signals | |
| GB1535814A (en) | Synthetic testing apparatus for circuit breakers | |
| SU928261A1 (en) | Device for checking electrical strength of electrical equipment insulation | |
| JPH065652Y2 (en) | Shiya disconnector testing device | |
| JPS6311663Y2 (en) | ||
| SU855542A1 (en) | Device for determination of errors of current transformers operating in transitional modes | |
| SU1359760A1 (en) | Device for testing switches for cutting off capacitive current | |
| RU1795393C (en) | Device for electrodynamic testing power transformers | |
| SU1357881A1 (en) | Device for testing transformers for dynamic stability | |
| JPH02201277A (en) | Device for testing breaking-operation of leading current of switch | |
| JPS62203479U (en) | ||
| Lim et al. | Transient Fault Current Limiting Characteristics of a Transformer Type SFCL Using an Additional Magnetically Coupled Circuit | |
| JPS63241368A (en) | Tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |