CN204855647U - A discharge device for transformer winding direct current resistance measurement - Google Patents
A discharge device for transformer winding direct current resistance measurement Download PDFInfo
- Publication number
- CN204855647U CN204855647U CN201520604047.9U CN201520604047U CN204855647U CN 204855647 U CN204855647 U CN 204855647U CN 201520604047 U CN201520604047 U CN 201520604047U CN 204855647 U CN204855647 U CN 204855647U
- Authority
- CN
- China
- Prior art keywords
- discharge
- transformer winding
- circuit
- direct current
- current resistance
- 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.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 title claims abstract description 45
- 238000005259 measurement Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a discharge device for transformer winding direct current resistance measurement, including circuit breaker, the discharge indicating circuit and the discharge circuit of establishing ties in proper order, the one end of circuit breaker with linked to each other by exoelectric single phase transformer winding X end, the one end that the other end of circuit breaker discharges indicating circuit links to each other, the indicating circuit's that discharges the other end links to each other with the discharge circuit, the other end of discharge circuit with linked to each other by exoelectric single phase transformer winding A end. The utility model discloses discharge to the winding after can realizing measuring single phase transformer winding direct current resistance to through the observation instruction of discharging, master the discharge process, whole the discharge process safe and reliable has reduced testing personnel's safe risk, has reached to the exoelectric purpose of winding behind the measurement single phase transformer winding direct current resistance.
Description
Technical field
The utility model relates to a kind of electric discharge device for Transformer Winding direct current resistance m easurem ent, is applicable to the rapid discharge to tested winding after Transformer Winding direct current resistance m easurem ent.
Background technology
In the preventive trial of power transformer equipment, Transformer Winding direct current resistance m easurem ent is one of pilot project of regulation in DL/T596 " power equipment preventive trial code ", the object of measuring transformer winding D.C. resistance is, check winding joint welding quality and with or without faults such as turn-to-turn short circuits, equivalent electrical circuit due to Transformer Winding is the series circuit of inductance and resistance, in the process measuring winding D.C. resistance, also give its induction charging, the energy that in charging process, winding stores is 1/2*L*I
2, winding inductance L and test DC current I is larger, the energy stored is larger, therefore, after measuring winding D.C. resistance, need discharge to its winding, the transformer of current 500KV and above, mostly adopt three single transformers by the structure of external connection composition three-phase transformer, for the wiring of measuring single transformer winding D.C. resistance, by regulatory requirements, direct current measurement positive source meets winding A and holds, the ground of direct current measurement power supply connects the X end of winding, now for the discharge equipment measured after single transformer winding D.C. resistance, the modes such as main use discharging rod electric discharge, discharge operation process cannot be observed, operate lack of standardization, potential safety hazard is brought to the personal safety of survey crew.
Summary of the invention
The purpose of this utility model is to provide a kind of electric discharge device for Transformer Winding direct current resistance m easurem ent.
The purpose of this utility model is achieved through the following technical solutions: a kind of electric discharge device for Transformer Winding direct current resistance m easurem ent, comprise isolating switch, electric discharge indicating circuit and the discharge circuit of connecting successively, one end of isolating switch is held with the single transformer winding X be discharged and is connected, the other end of isolating switch is connected with one end of electric discharge indicating circuit, the other end of electric discharge indicating circuit is connected with discharge circuit, and the other end of discharge circuit is held with the single transformer winding A be discharged and is connected.
The beneficial effects of the utility model are: be connected with the single transformer winding be discharged by a kind of electric discharge device for Transformer Winding direct current resistance m easurem ent, measure testing crew to be opened by operating breaker, close, can realize measuring after single transformer winding D.C. resistance to winding charge, and by observing electric discharge instruction, grasp discharge process, whole discharge process is safe and reliable, reduce the security risk of testing crew, reach the object measured to winding charge after single transformer winding D.C. resistance.
accompanying drawing explanation:
fig. 1 is circuit block diagram of the present utility model
Below in conjunction with accompanying drawing 1, content of the present utility model is described in further detail.
Accompanying drawing 1: be circuit block diagram of the present utility model.By isolating switch (1); Electric discharge indicating circuit (2); Discharge circuit (3) forms.
embodiment:
Below in conjunction with accompanying drawing and Reference numeral, the utility model is described further.
As shown in Figure 1, a kind of electric discharge device for Transformer Winding direct current resistance m easurem ent, comprise the isolating switch (1) of connecting successively, electric discharge indicating circuit (2) and discharge circuit (3), one end of isolating switch (1) is held with the single transformer winding X be discharged and is connected, the other end of isolating switch (1) is connected with one end of electric discharge indicating circuit (2), the other end of electric discharge indicating circuit (2) is connected with discharge circuit (3), the other end of discharge circuit (3) is held with the single transformer winding A be discharged and is connected, wherein: electric discharge indicating circuit (2) is pilot lamp, discharge circuit (3) is resistor.
After measurement single transformer winding D.C. resistance, during to winding charge, measure testing crew by breaker closing, a kind of electric discharge device for Transformer Winding direct current resistance m easurem ent is connected with Transformer Winding and connects, discharging, measuring testing crew also by observing discharge process and effect.
Claims (1)
1. the electric discharge device for Transformer Winding direct current resistance m easurem ent, comprise the isolating switch (1) of connecting successively, electric discharge indicating circuit (2) and discharge circuit (3), one end of isolating switch (1) is held with the single transformer winding X be discharged and is connected, the other end of isolating switch (1) is connected with one end of electric discharge indicating circuit (2), the other end of electric discharge indicating circuit (2) is connected with discharge circuit (3), the other end of discharge circuit (3) is held with the single transformer winding A be discharged and is connected, wherein: electric discharge indicating circuit (2) is pilot lamp, discharge circuit (3) is resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520604047.9U CN204855647U (en) | 2015-08-12 | 2015-08-12 | A discharge device for transformer winding direct current resistance measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520604047.9U CN204855647U (en) | 2015-08-12 | 2015-08-12 | A discharge device for transformer winding direct current resistance measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204855647U true CN204855647U (en) | 2015-12-09 |
Family
ID=54746184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520604047.9U Expired - Fee Related CN204855647U (en) | 2015-08-12 | 2015-08-12 | A discharge device for transformer winding direct current resistance measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204855647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337750A (en) * | 2020-02-11 | 2020-06-26 | 深圳供电局有限公司 | Method and device for synchronously testing direct resistance of three-phase winding of cable outgoing type transformer |
-
2015
- 2015-08-12 CN CN201520604047.9U patent/CN204855647U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337750A (en) * | 2020-02-11 | 2020-06-26 | 深圳供电局有限公司 | Method and device for synchronously testing direct resistance of three-phase winding of cable outgoing type transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102780234B (en) | High-voltage electric debugging method for power generation project | |
| CN104198832B (en) | A kind of high pressure transformer and distribution power station Integrated Checkout test method | |
| CN104793028B (en) | A kind of three-phase multifunctional test power device and its test method | |
| CN106226564B (en) | Routine test transfer box for high-voltage capacitance type voltage transformer without disassembling lead | |
| CN102565618A (en) | Method for detecting zero-sequence voltage circuit of transformer substation | |
| CN201514437U (en) | Distribution network capacitance current test instrument | |
| CN108318766A (en) | Operation vehicle for contact wire's AC power distribution cabinet/AC distribution panel device for fast detecting | |
| CN105467239A (en) | Voltage transformer excitation characteristic test system | |
| CN104330730A (en) | Contactor connecting and breaking test monitoring protection device and operation mode thereof | |
| CN204855647U (en) | A discharge device for transformer winding direct current resistance measurement | |
| CN102565614B (en) | Alternating voltage loop test method | |
| CN102879657B (en) | Method for checking phase sequences of lines | |
| CN204679581U (en) | A kind of portable type current transformer polarity test device | |
| CN209432939U (en) | A kind of high-power transformer second protection polarity test device | |
| CN103809146A (en) | Test method of main transformer CT (Current Transformer) | |
| CN2930032Y (en) | Novel high voltage switch cabinet | |
| CN106154152A (en) | A kind of circuit breaker short circuit test device of DC traction power-supply system | |
| CN203825089U (en) | Remote monitoring device of transformer insulating resistance | |
| CN104183379A (en) | Connecting device for maintenance of secondary side of electric power current transformer | |
| CN203037783U (en) | On-off detection apparatus for secondary cable core of current transformer | |
| CN104614698B (en) | Electric power meter field-checking loads device with three-phase simulation | |
| CN203365622U (en) | Discharge test device and high-speed grounding switch device controlling the same | |
| CN205656270U (en) | Abundant discharge device of cable fault point | |
| CN207503490U (en) | The multi-functional installation wiring training device of electric energy meter, mutual inductor | |
| CN205178317U (en) | Take simple and easy power distribution box of phase sequence error indication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20210812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |