CN103675540B - Shunt capacitor bank discharge device - Google Patents
Shunt capacitor bank discharge device Download PDFInfo
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- CN103675540B CN103675540B CN201310640943.6A CN201310640943A CN103675540B CN 103675540 B CN103675540 B CN 103675540B CN 201310640943 A CN201310640943 A CN 201310640943A CN 103675540 B CN103675540 B CN 103675540B
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- Prior art keywords
- discharge
- electric discharge
- arresting element
- tap
- high voltage
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- 239000003990 capacitor Substances 0.000 title claims abstract description 32
- 238000007599 discharging Methods 0.000 abstract description 9
- 238000010891 electric arc Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
The invention discloses a kind of shunt capacitor bank discharge device, be applied to power system maintenance field. It includes an insulating bar, in one end of insulating bar, one insulating support is set, at an arresting element fixed below of insulating support, being arranged side by side some levels and shnt capacitor discharge electrode and carry out the electric discharge tap of contact discharge below arresting element, the other end of arresting element is connected to earth lead; Fixing an alarm for high voltage device on insulating support, alarm for high voltage device is connected in parallel between the first order electric discharge tap of arresting element and final stage electric discharge tap. The present invention can reduce discharge current, makes do not have electric arc and discharging sound to produce during electric discharge, will not operational outfit around be impacted.
Description
Technical field
The present invention relates to the electric discharge device of a kind of Shunt Capacitor Unit for 10kV or 35kV electric pressure, belong to the maintenance field of power system.
Background technology
In the transformer station of 10kV or the 35kV electric pressure of power system, it is designed with Shunt Capacitor Unit. When processing the defect of Shunt Capacitor Unit of 10kV or 35kV electric pressure, it is necessary to first Shunt Capacitor Unit is discharged, during electric discharge, staff is usually property-line and directly Shunt Capacitor Unit ground connection is discharged. But owing to each piece of capacitor existing substantial amounts of residual charge, directly over the ground in discharge process, there is a lot of unsafe factor at ground wire, as: it is easily generated that electric arc, discharging sound are relatively big, easily staff is caused personal injury etc.
Summary of the invention
The technical issues that need to address of the present invention are to provide and a kind of shnt capacitor can be made not have the special electric discharge device of shnt capacitor that electric arc and discharging sound produce in discharge process.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
Shunt capacitor bank discharge device, including an insulating bar, in one end of insulating bar, one insulating support is set, an arresting element fixed below at insulating support, being arranged side by side some levels and shnt capacitor discharge electrode below arresting element and carry out the electric discharge tap of contact discharge, the other end of arresting element is connected to earth lead; Fixing an alarm for high voltage device on insulating support, alarm for high voltage device is connected in parallel between the first order electric discharge tap of arresting element and final stage electric discharge tap.
The present invention is improved by: described arresting element is provided with six grades of electric discharge taps.
The particular circuit configurations of arresting element of the present invention is: described arresting element includes being connected in series, by Pyatyi dividing potential drop bleeder circuit, the discharge circuit constituted, and every grade of dividing potential drop bleeder circuit includes the D.C. resistance R being connected in parallelxWith linear resistance rx;The head end of chopped-off head dividing potential drop bleeder circuit connects first order electric discharge tap, all draws one-level electric discharge tap between adjacent dividing potential drop bleeder circuit, and the end of final stage dividing potential drop bleeder circuit draws the 6th grade of electric discharge tap.
The concrete structure of described arresting element is: the resistance of described D.C. resistance is 2M ��, and the nominal voltage of varistor is 1000V.
The present invention is improved by: the other end of described insulating bar is provided with insulated handle.
Further improvement of the present invention is in that: described alarm for high voltage device is high voltage electroscope.
Owing to have employed technique scheme, the technological progress that the present invention obtains is:
The present invention be directed to the special electric discharge device of 10��35kV shnt capacitor, this electric discharge device has the effect of pressure release and current limliting, when to capacitor discharge, discharge current can be limited within 10mA by arresting element, make to produce during electric discharge only small electric arc, it is negligible, can guarantee that the safety of defect elimination personnel. Additionally, there is no electric arc and discharging sound when utilizing this device to capacitor discharge, so running without influence on neighbouring equipment. Alarm for high voltage device of the present invention adopts high voltage electroscope can also connect the direct electrical verification of capacitor when earth lead is earth-free, it is possible to avoid the injury that personnel are caused by residual charge; To capacitor discharge insufficient time or arresting element damage time, device self can send warning, serve protection staff effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the circuit diagram of the present invention.
Wherein, 1, insulated handle, 2, insulating bar, 3, insulating support, 4, arresting element, 5, electric discharge tap, 6, earth lead, 7, alarm for high voltage device.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details:
A kind of shunt capacitor bank discharge device, its structure, as it is shown in figure 1, include an insulating bar 2, is provided with the insulated handle 1 for gripping in one end of insulating bar 2. The other end at insulating bar 2 arranges an insulating support 3, at an arresting element 4 fixed below of insulating support 3, some grade electric discharge taps 5 is provided below at arresting element 4, arranges six grades of electric discharge tap T1 ~ T6 in the present embodiment altogether; The end of arresting element 4 is connected to earth lead 6. Fixing an alarm for high voltage device 7 on insulating support 3, alarm for high voltage device 7 is a high voltage electroscope, and high voltage electroscope is connected in the two ends of arresting element 4 in parallel.
The circuit diagram of the present invention as in figure 2 it is shown, wherein arresting element include being connected in series, by Pyatyi dividing potential drop bleeder circuit, the discharge circuit constituted, every grade of dividing potential drop bleeder circuit includes the D.C. resistance R being connected in parallelx(X=1,2,3,4,5) and linear resistance rx(X=1,2,3,4,5); The head end of chopped-off head dividing potential drop bleeder circuit connects first order electric discharge tap T1, all draws one-level electric discharge tap between adjacent dividing potential drop bleeder circuit, and the end of final stage dividing potential drop bleeder circuit draws the 6th grade of electric discharge tap T6. High voltage electroscope is connected in first order electric discharge tap T1 and the six grades electric discharge tap T6 two ends in parallel, for detecting the magnitude of voltage of capacitor discharge pole when discharging every time.
When the present invention is for discharging to 10kV shnt capacitor, the D.C. resistance resistance of dividing potential drop bleeder circuit selects 2M ��, and the nominal voltage of varistor selects 1000V, and during to meet six grades of electric discharges, the pressure release of every grade is at about 1000V. After the discharge electrode of capacitor sequentially passes through T1 to T6 electric discharge, it is ensured that the charge discharge of discharge electrode is complete.During for 35kV shnt capacitor is discharged, D.C. resistance resistance selects 10M ��, and the nominal voltage of varistor selects 4000V.
The using method of the present invention is as described below:
When being used for shnt capacitor is discharged, tackle each discharge electrode and discharge one by one. Before a certain discharge electrode is discharged, it is ensured that the earth lead dead earthing of the present invention, then contacting with this discharge electrode successively in order to the 6th grade of tap of discharging from first order electric discharge tap, discharging thus completing the classification pressure release current limliting to this discharge electrode, final realization is substantially discharged.
In discharge process, high voltage electroscope detects the voltage-to-ground of discharge electrode in discharge process in real time. When the first order discharges tapped connection discharge electrode, owing to discharge electrode voltage-to-ground is higher, high voltage electroscope warning lamp is lighted; Until when the voltage-to-ground of discharge electrode is less than setting value, high voltage electroscope warning lamp extinguishes. If after discharge electrode is carried out discharge off by the 6th grade of tap of discharging, high voltage electroscope warning lamp is still lighted, then this discharge electrode electric discharge of shnt capacitor is described not exclusively, need to again discharge, or arresting element fault is described, it is necessary to maintenance.
Certainly, the quantity of the dividing potential drop bleeder circuit in the present invention can also be arranged according to real work demand, but should ensure that many one of the quantity relatively dividing potential drop bleeder circuit quantity of electric discharge tap, in dividing potential drop bleeder circuit, the resistance of D.C. resistance and the nominal voltage of varistor select according to practical service environment, to guarantee capacitor is substantially discharged.
Claims (4)
1. shunt capacitor bank discharge device, it is characterized in that: include an insulating bar (2), in one end of insulating bar (2), one insulating support (3) is set, an arresting element (4) fixed below at insulating support (3), being arranged side by side some levels and shnt capacitor (C) discharge electrode below arresting element (4) and carry out the electric discharge tap (5) of contact discharge, the other end of arresting element (4) is connected to earth lead (6); Fixing an alarm for high voltage device (7) on insulating support (3), alarm for high voltage device (7) is connected in parallel between the first order electric discharge tap of arresting element (4) and final stage electric discharge tap;
Described arresting element is provided with six grades of electric discharge taps;
Described arresting element includes being connected in series, by Pyatyi dividing potential drop bleeder circuit, the discharge circuit constituted, and every grade of dividing potential drop bleeder circuit includes the D.C. resistance R being connected in parallelxWith linear resistance rx; The head end of chopped-off head dividing potential drop bleeder circuit connects first order electric discharge tap, all draws one-level electric discharge tap between adjacent dividing potential drop bleeder circuit, and the end of final stage dividing potential drop bleeder circuit draws the 6th grade of electric discharge tap.
2. shunt capacitor bank discharge device according to claim 1, it is characterised in that: the resistance of described D.C. resistance is 2M ��, and the nominal voltage of varistor is 1000V.
3. shunt capacitor bank discharge device according to claim 1 and 2, it is characterised in that: the other end of described insulating bar (2) is provided with insulated handle (1).
4. shunt capacitor bank discharge device according to claim 3, it is characterised in that: described alarm for high voltage device (7) is high voltage electroscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640943.6A CN103675540B (en) | 2013-12-04 | 2013-12-04 | Shunt capacitor bank discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640943.6A CN103675540B (en) | 2013-12-04 | 2013-12-04 | Shunt capacitor bank discharge device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103675540A CN103675540A (en) | 2014-03-26 |
| CN103675540B true CN103675540B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310640943.6A Active CN103675540B (en) | 2013-12-04 | 2013-12-04 | Shunt capacitor bank discharge device |
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| Country | Link |
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| CN (1) | CN103675540B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242003A (en) * | 2014-10-11 | 2014-12-24 | 国家电网公司 | Discharging tool for bulk capacitors |
| CN109378607B (en) * | 2018-12-03 | 2024-01-09 | 广东电网有限责任公司 | Discharge ground wire and capacitor |
| CN114006523B (en) * | 2021-09-28 | 2023-12-29 | 中国三峡建工(集团)有限公司 | Test discharging device and method for flexible direct current converter valve power module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601403U (en) * | 2009-12-30 | 2010-10-06 | 江苏省电力公司镇江供电公司 | High voltage integral capacitor discharging grounding device |
| CN202423590U (en) * | 2011-12-20 | 2012-09-05 | 新疆电力公司超高压公司 | 750kV high-reliability grounding wire device |
| CN203301050U (en) * | 2013-06-18 | 2013-11-20 | 广东立胜电力工程有限公司 | Novel, safe and reliable high-voltage discharge bar |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009141667A (en) * | 2007-12-06 | 2009-06-25 | Toshiba Corp | Arc discharge monitoring apparatus |
| JP2013076589A (en) * | 2011-09-29 | 2013-04-25 | Toshiba Corp | Insulation diagnostic device |
-
2013
- 2013-12-04 CN CN201310640943.6A patent/CN103675540B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601403U (en) * | 2009-12-30 | 2010-10-06 | 江苏省电力公司镇江供电公司 | High voltage integral capacitor discharging grounding device |
| CN202423590U (en) * | 2011-12-20 | 2012-09-05 | 新疆电力公司超高压公司 | 750kV high-reliability grounding wire device |
| CN203301050U (en) * | 2013-06-18 | 2013-11-20 | 广东立胜电力工程有限公司 | Novel, safe and reliable high-voltage discharge bar |
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| Publication number | Publication date |
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| CN103675540A (en) | 2014-03-26 |
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