CN103675540A - Shunt capacitor bank discharge device - Google Patents
Shunt capacitor bank discharge device Download PDFInfo
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- CN103675540A CN103675540A CN201310640943.6A CN201310640943A CN103675540A CN 103675540 A CN103675540 A CN 103675540A CN 201310640943 A CN201310640943 A CN 201310640943A CN 103675540 A CN103675540 A CN 103675540A
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- electric discharge
- discharge
- shunt capacitor
- arresting element
- potential drop
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Abstract
The invention discloses a shunt capacitor bank discharge device applied to the field of power system maintenance. The shunt capacitor bank discharge device comprises an insulating rod. An insulating support is disposed at one end of the insulating rod. A discharge element is fixed below the insulating support. A plurality of discharge taps, which contact with discharge electrodes of a shunt capacitor bank for discharging, are arranged side by side below the discharge element. The other end of the discharge element is connected with a ground wire. A high voltage alarm is fixed above the insulating support and is parallelly connected between the first and tail discharge taps of the discharge element. The shunt capacitor bank discharge device has the advantages that discharge current can be reduced, no arc or discharge noise occurs during discharging, and no influence is caused to surrounding operating equipment.
Description
Technical field
The present invention relates to a kind of electric discharge device of the Shunt Capacitor Unit for 10kV or 35kV electric pressure, belong to the maintenance field of electric system.
Background technology
In the 10kV of electric system or the transformer station of 35kV electric pressure, be all provided with Shunt Capacitor Unit.When processing the defect of Shunt Capacitor Unit of 10kV or 35kV electric pressure, need first to Shunt Capacitor Unit, discharge, during electric discharge staff normally property-line directly Shunt Capacitor Unit ground connection is discharged.But owing to having a large amount of residual charges on each piece capacitor, at ground wire, directly over the ground in discharge process, there are a lot of unsafe factors, as: electric arc, discharging sound easily produced more greatly, easily staff is caused to personal injury etc.
Summary of the invention
The technical issues that need to address of the present invention are to provide the special-purpose electric discharge device of a kind of shnt capacitor that can make shnt capacitor not have electric arc and discharging sound to produce in discharge process.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
Shunt Capacitor Unit electric discharge device, comprise an insulating bar, in one end of insulating bar, one insulating support is set, below insulating support, fix an arresting element, below arresting element, be arranged side by side the electric discharge tap that some levels and shnt capacitor discharge electrode carry out contact discharge, the other end of arresting element is connected with ground wire; On insulating support, fix an alarm for high voltage device, alarm for high voltage device is connected in parallel between the first order electric discharge tap and final stage electric discharge tap of arresting element.
Improvement of the present invention is: 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 comprises by Pyatyi dividing potential drop bleeder circuit and be connected in series the discharge circuit forming, and every grade of dividing potential drop bleeder circuit comprises the direct current resistance R being connected in parallel
xwith linear resistance r
x; 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 is drawn the 6th grade of electric discharge tap.
The concrete structure of described arresting element is: the resistance of described direct current resistance is 2M Ω, and the nominal voltage of voltage dependent resistor (VDR) is 1000V.
Improvement of the present invention is: the other end of described insulating bar is provided with insulated handle.
Further improvement of the present invention is: described alarm for high voltage device is high voltage electroscope.
Owing to having adopted technique scheme, the technical progress that the present invention obtains is:
The present invention be directed to the special-purpose 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, within arresting element can be limited in 10mA by discharge current, while making to discharge, produce very little electric arc, negligible, can guarantee defect elimination personnel's safety.In addition, while utilizing this device to capacitor discharge, there is no electric arc and discharging sound, so near the equipment operation can not affecting.Alarm for high voltage device of the present invention adopts high voltage electroscope can also when ground wire is earth-free, connect the direct electrical verification of capacitor, the injury that can avoid residual charge to cause personnel; When insufficient to capacitor discharge or when arresting element damages, install self and can send warning, played protection staff's effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is circuit diagram of the present invention.
Wherein, 1, insulated handle, 2, insulating bar, 3, insulating support, 4, arresting element, 5, electric discharge tap, 6, ground wire, 7, alarm for high voltage device.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details:
A Shunt Capacitor Unit electric discharge device, its structure as shown in Figure 1, comprises 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, fixes an arresting element 4 below insulating support 3, is provided with some grades of electric discharge taps 5 below arresting element 4, and six grades of electric discharge tap T1 ~ T6 are set in the present embodiment altogether; The end of arresting element 4 is connected with ground wire 6.On insulating support 3, fix an alarm for high voltage device 7, alarm for high voltage device 7 is high voltage electroscopes, and high voltage electroscope is connected in the two ends of arresting element 4 in parallel.
As shown in Figure 2, wherein arresting element comprises by Pyatyi dividing potential drop bleeder circuit and is connected in series the discharge circuit forming circuit diagram of the present invention, and every grade of dividing potential drop bleeder circuit comprises the direct current resistance R being connected in parallel
x(X=1,2,3,4,5) and linear resistance r
x(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 is drawn the 6th grade of electric discharge tap T6.High voltage electroscope is connected in first order electric discharge tap T1 and the 6th grade of electric discharge tap T6 two ends, the magnitude of voltage of the capacitor discharge utmost point during for detection of each electric discharge in parallel.
The present invention is when discharge to 10kV shnt capacitor, and the direct current resistance resistance of dividing potential drop bleeder circuit is selected 2M Ω, and the nominal voltage of voltage dependent resistor (VDR) is selected 1000V, and when meeting six grades of electric discharges, the pressure release of every grade is about 1000V.When the discharge electrode of capacitor is successively after T1 to T6 electric discharge, guarantee that the charge discharge of discharge electrode is complete.While being used for 35kV shnt capacitor to discharge, direct current resistance resistance is selected 10M Ω, and the nominal voltage of voltage dependent resistor (VDR) is selected 4000V.
Using method of the present invention is as described below:
When shnt capacitor is discharged, tackle each discharge electrode and discharge one by one.Before a certain discharge electrode is discharged, should guarantee ground wire dead earthing of the present invention, then from six grades of electric discharge taps of first order electric discharge tap to the, contact with this discharge electrode successively in order, thereby complete the classification pressure release current limliting electric discharge to this discharge electrode, fully electric discharge of final realization.
In discharge process, high voltage electroscope detects the voltage-to-ground of discharge electrode in discharge process in real time.When the first order electric discharge tap contact discharge utmost point, because discharge electrode voltage-to-ground is higher, high voltage electroscope warning lamp is lighted; Until the voltage-to-ground of discharge electrode is while being less than setting value, high voltage electroscope warning lamp extinguishes.If discharge electrode is carried out after discharge off the 6th grade of electric discharge tap, high voltage electroscope warning lamp is still lighted, and this discharge electrode electric discharge of shnt capacitor is described not exclusively, need again discharge, or explanation arresting element fault, need maintenance.
Certainly, the quantity of the dividing potential drop bleeder circuit in the present invention can also arrange according to real work demand, but the quantity of the tap that should guarantee to discharge is compared with many one of dividing potential drop bleeder circuit quantity, in dividing potential drop bleeder circuit, the resistance of direct current resistance and the nominal voltage of voltage dependent resistor (VDR) are selected according to practical service environment, capacitor are fully discharged guaranteeing.
Claims (6)
1. Shunt Capacitor Unit electric discharge device, it is characterized in that: comprise an insulating bar (2), in one end of insulating bar (2), one insulating support (3) is set, below insulating support (3), fix an arresting element (4), below arresting element (4), be arranged side by side the electric discharge tap (5) that some levels and shnt capacitor (C) discharge electrode carry out contact discharge, the other end of arresting element (4) is connected with ground wire (6); On insulating support (3), fix an alarm for high voltage device (7), alarm for high voltage device (7) is connected in parallel between the first order electric discharge tap and final stage electric discharge tap of arresting element (4).
2. Shunt Capacitor Unit electric discharge device according to claim 1, is characterized in that: described arresting element is provided with six grades of electric discharge taps.
3. Shunt Capacitor Unit electric discharge device according to claim 2, is characterized in that: described arresting element comprises by Pyatyi dividing potential drop bleeder circuit and be connected in series the discharge circuit forming, and every grade of dividing potential drop bleeder circuit comprises the direct current resistance R being connected in parallel
xwith linear resistance r
x; 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 is drawn the 6th grade of electric discharge tap.
4. Shunt Capacitor Unit electric discharge device according to claim 3, is characterized in that: the resistance of described direct current resistance is 2M Ω, and the nominal voltage of voltage dependent resistor (VDR) is 1000V.
5. according to the Shunt Capacitor Unit electric discharge device described in claim 1 to 4 any one, it is characterized in that: the other end of described insulating bar (2) is provided with insulated handle (1).
6. Shunt Capacitor Unit electric discharge device according to claim 5, is characterized 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 true CN103675540A (en) | 2014-03-26 |
| CN103675540B 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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| CN (1) | CN103675540B (en) |
Cited By (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 |
| CN109378607A (en) * | 2018-12-03 | 2019-02-22 | 广东电网有限责任公司 | Discharge ground wire and capacitor |
| CN114006523A (en) * | 2021-09-28 | 2022-02-01 | 中国三峡建工(集团)有限公司 | Discharge testing device and method for power module of flexible direct current converter valve |
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|---|---|---|---|---|
| JP2009141667A (en) * | 2007-12-06 | 2009-06-25 | Toshiba Corp | Arc discharge monitoring apparatus |
| 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 |
| JP2013076589A (en) * | 2011-09-29 | 2013-04-25 | Toshiba Corp | Insulation diagnostic 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 |
-
2013
- 2013-12-04 CN CN201310640943.6A patent/CN103675540B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009141667A (en) * | 2007-12-06 | 2009-06-25 | Toshiba Corp | Arc discharge monitoring apparatus |
| 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 |
| JP2013076589A (en) * | 2011-09-29 | 2013-04-25 | Toshiba Corp | Insulation diagnostic 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 |
Cited By (5)
| 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 |
| CN109378607A (en) * | 2018-12-03 | 2019-02-22 | 广东电网有限责任公司 | Discharge ground wire and capacitor |
| CN109378607B (en) * | 2018-12-03 | 2024-01-09 | 广东电网有限责任公司 | Discharge ground wire and capacitor |
| CN114006523A (en) * | 2021-09-28 | 2022-02-01 | 中国三峡建工(集团)有限公司 | Discharge testing device and method for power module of flexible direct current converter valve |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103675540B (en) | 2016-06-08 |
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