CN204964626U - High pressure parallel reactor winding is together with sheathed tube insulation resistance test circuit - Google Patents
High pressure parallel reactor winding is together with sheathed tube insulation resistance test circuit Download PDFInfo
- Publication number
- CN204964626U CN204964626U CN201520792750.7U CN201520792750U CN204964626U CN 204964626 U CN204964626 U CN 204964626U CN 201520792750 U CN201520792750 U CN 201520792750U CN 204964626 U CN204964626 U CN 204964626U
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- China
- Prior art keywords
- insulation resistance
- parallel reactor
- shunt reactor
- pressure parallel
- voltage shunt
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- 238000009413 insulation Methods 0.000 title claims abstract description 43
- 238000004804 winding Methods 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 230000007935 neutral effect Effects 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model discloses a high pressure parallel reactor winding is together with sheathed tube insulation resistance test circuit, characterized by: high pressure parallel reactor high -tension bushing's top pile head is connected through the high tension lead with high -pressure generating line all the way, and the top pile head with high -pressure parallel reactor neutral bushing adopts the copper conductor to link to each other all the way, unshakable in one's determination and the high -pressure parallel reactor folder short circuit of high pressure parallel reactor, the L terminal of insulation resistance tester adopts the test wire to be connected with high -pressure parallel reactor high -tension bushing's top pile head, and the E terminal of insulation resistance tester is connected with the high -pressure parallel reactor test wire that adopts unshakable in one's determination, and the G terminal of insulation resistance tester connects in high -pressure parallel reactor ground copper bars. The utility model relates to a do not tear the test circuit of lead wire open, effectively improved and develoied high -pressure parallel reactor winding and together with the test efficiency of sleeve pipe insulation resistance test, shorten the power off time, improve the security.
Description
Technical field
The utility model belongs to high potential test for electric equipment field, is more particularly a kind of test circuit detecting high-voltage shunt reactor winding and sleeve insulation resistance.
Background technology
Along with electric pressure improves gradually, transmission line of electricity adopts split conductor in a large number, and line capacitance is very large, when a large amount of capacitive power is by system inductive element, terminal voltage can be caused to raise.Therefore, in order to increase transmission line of electricity transport capacity, improving the power system transient stability limit, needing, at long transmission line first and last end installing shunt reactor, with the capacitance current on compensated line, to weaken and be promoted in glory effect, thus the rising of restriction power-frequency voltage.
For high voltage electric equipment, when humidified insulation or have other through centrality defect time, as cracking, dirty, insulating resistance value can obviously decline.So, the insulation status of electrical equipment can be understood according to the size of insulation resistance, can effectively discovering device local or entirety make moist with dirty, and the defect such as insulation breakdown and serious heat ageing excessively.
The test at present carrying out the insulation resistance of winding and sleeve for high-voltage shunt reactor needs to remove high pressure lead wire, power off time is longer, and dismounting lead wire needs the manpower of at substantial and plant equipment of ascending a height, dismounting lead wire is also huge hidden danger to the person and device security.
Summary of the invention
The utility model is the weak point for avoiding existing for above-mentioned prior art, a kind of insulation resistance test circuit of high-voltage shunt reactor winding and sleeve of without disconnecting power lead is provided, to improving the test efficiency carrying out the megger test of high-voltage shunt reactor winding and sleeve, shorten power off time, reduce security risk simultaneously.
The utility model is that technical solution problem adopts following technical scheme:
The design feature of the insulation resistance test circuit of the utility model high-voltage shunt reactor winding and sleeve is: top pile crown one tunnel of high-voltage shunt reactor bushing is connected by high-voltage connection with high voltage bus, and a road adopts copper conductor to be connected with the top pile crown of high-voltage shunt reactor neutral bushing; High-voltage shunt reactor iron core and high-voltage shunt reactor folder short circuit; The L terminal of Insulation Resistance Tester adopts test lead to be connected with the top pile crown of high-voltage shunt reactor bushing, the E terminal of described Insulation Resistance Tester adopts test lead to be connected with high-voltage shunt reactor iron core, and the G terminal of Insulation Resistance Tester is connected to high-voltage shunt reactor grounding copper bar.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model is a kind of test circuit of without disconnecting power lead, because once going between without the need to removing and reassembling high pressure, thus effectively improve the test efficiency carrying out the megger test of high-voltage shunt reactor winding and sleeve, shorten power off time, it also avoid the person of dismounting high pressure once in lead-in wire process and device security hidden danger simultaneously.
2, adopt this test circuit to test under the state of not removing high-voltage shunt reactor high-voltage connection, eliminate high pressure winding connect the impact that external unit insulation resistance over the ground produces, ensure that accuracy and the reliability of test findings.
Accompanying drawing explanation
Fig. 1 is the utility model wiring diagram;
Fig. 2 is the utility model schematic diagram;
Number in the figure: 1 high voltage bus, 2 high-voltage shunt reactor bushings, 3 high-voltage shunt reactor neutral bushings, 4 Insulation Resistance Testers, 5 high-voltage shunt reactor grounding copper bars, 6 high-voltage shunt reactors are unshakable in one's determination, 7 high-voltage shunt reactor folders, 8 high-voltage shunt reactors, R
coverfor high-voltage shunt reactor bushing and high-voltage shunt reactor neutral bushing equivalence insulation resistance over the ground, R
winding is to iron corefor high-voltage shunt reactor winding is to the insulation resistance of high-voltage shunt reactor iron core, R
0for the Internal current limit resistance of Insulation Resistance Tester, R
iron core over the groundfor high-voltage shunt reactor insulation resistance over the ground unshakable in one's determination, R
unshakable in one's determination to folderfor the high-voltage shunt reactor insulation resistance to high-voltage shunt reactor folder unshakable in one's determination, R
winding is to folderfor high-voltage shunt reactor winding is to the insulation resistance of high-voltage shunt reactor folder, R
folder over the groundfor high-voltage shunt reactor folder insulation resistance over the ground, R
outwardby high-voltage shunt reactor winding company's external unit insulation resistance over the ground, the calibrating terminal E of L to be the calibrating terminal L of Insulation Resistance Tester, E be Insulation Resistance Tester, G is the calibrating terminal G of Insulation Resistance Tester.
Embodiment
See Fig. 1, the version of the insulation resistance test circuit of the present embodiment mesohigh shunt reactor winding and sleeve is connected by high-voltage connection with high voltage bus 1 on top pile crown one tunnel of high-voltage shunt reactor bushing 2, and another road adopts copper conductor to be connected with the top pile crown of high-voltage shunt reactor neutral bushing 3; High-voltage shunt reactor unshakable in one's determination 6 and high-voltage shunt reactor folder 7 short circuit; The L terminal of Insulation Resistance Tester 4 adopts test lead to be connected with the top pile crown of high-voltage shunt reactor bushing 2, the E terminal of described Insulation Resistance Tester 4 adopts test lead to be connected with high-voltage shunt reactor unshakable in one's determination 6, and the G terminal of Insulation Resistance Tester 4 is connected to high-voltage shunt reactor grounding copper bar 5.
Test philosophy is as shown in Figure 2: when not removing lead-in wire, due to G point ground connection, R
coverand R
outwardmuch larger than current-limiting resistance R
0, so R
coverand R
outwardon the electric current that flows through relatively very little, limited on the impact of final measurement result, and R
iron core over the groundand R
folder over the groundon electric current without the electric current winding of Insulation Resistance Tester inside, therefore record the insulation resistance that result is high-voltage shunt reactor winding and sleeve.
Test process:
First carry out test wiring according to Fig. 1, the insulating requirements according to tested high-voltage shunt reactor 8 carries out to Insulation Resistance Tester 4 selection applying trial voltage;
Then, open the working power of Insulation Resistance Tester 4, apply trial voltage; Read tested high-voltage shunt reactor winding and sleeve megger test result;
Finally, at the end of pressurization, remove test connection.
Claims (1)
1. the insulation resistance test circuit of a high-voltage shunt reactor winding and sleeve, it is characterized in that: top pile crown one tunnel of high-voltage shunt reactor bushing (2) is connected by high-voltage connection with high voltage bus (1), and a road adopts copper conductor to be connected with the top pile crown of high-voltage shunt reactor neutral bushing (3); High-voltage shunt reactor iron core (6) and high-voltage shunt reactor folder (7) short circuit; The L terminal of Insulation Resistance Tester (4) adopts test lead to be connected with the top pile crown of high-voltage shunt reactor bushing (2), the E terminal of described Insulation Resistance Tester (4) adopts test lead to be connected with high-voltage shunt reactor iron core (6), and the G terminal of Insulation Resistance Tester (4) is connected to high-voltage shunt reactor grounding copper bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520792750.7U CN204964626U (en) | 2015-10-12 | 2015-10-12 | High pressure parallel reactor winding is together with sheathed tube insulation resistance test circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520792750.7U CN204964626U (en) | 2015-10-12 | 2015-10-12 | High pressure parallel reactor winding is together with sheathed tube insulation resistance test circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204964626U true CN204964626U (en) | 2016-01-13 |
Family
ID=55059682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520792750.7U Active CN204964626U (en) | 2015-10-12 | 2015-10-12 | High pressure parallel reactor winding is together with sheathed tube insulation resistance test circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204964626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108943A (en) * | 2019-06-03 | 2019-08-09 | 国网青海省电力公司检修公司 | Drainage thread measuring transformer dielectric loss, the method for capacitance and insulation resistance are not disassembled |
| CN112666401A (en) * | 2020-12-15 | 2021-04-16 | 广东电网有限责任公司电力科学研究院 | Transformer insulating sleeve frequency domain dielectric spectrum field testing device, cavity conductor and method |
-
2015
- 2015-10-12 CN CN201520792750.7U patent/CN204964626U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108943A (en) * | 2019-06-03 | 2019-08-09 | 国网青海省电力公司检修公司 | Drainage thread measuring transformer dielectric loss, the method for capacitance and insulation resistance are not disassembled |
| CN112666401A (en) * | 2020-12-15 | 2021-04-16 | 广东电网有限责任公司电力科学研究院 | Transformer insulating sleeve frequency domain dielectric spectrum field testing device, cavity conductor and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |