CN106814288A - A kind of multi-functional discharging detection device of high-voltage capacitor - Google Patents
A kind of multi-functional discharging detection device of high-voltage capacitor Download PDFInfo
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- CN106814288A CN106814288A CN201510873479.4A CN201510873479A CN106814288A CN 106814288 A CN106814288 A CN 106814288A CN 201510873479 A CN201510873479 A CN 201510873479A CN 106814288 A CN106814288 A CN 106814288A
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- voltage capacitor
- detection device
- detection
- detection unit
- voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
Abstract
A kind of multi-functional discharging detection device of high-voltage capacitor of the present invention, it is used to solve prior art to detect high-voltage capacitor equipment using independent, the multiple more substitution detector in the presence of the need for, operating personnel easily forget detection content, successor operation is set to there is electric shock risk, the influence person and equipment safety.The discharging detection device has stronger practicality and reliability, is provided simultaneously with various functions.
Description
Technical field
The present invention relates to a kind of detection means, more particularly to a kind of multi-functional discharging detection device of high-voltage capacitor.
Background technology
In power system, it is often necessary to high-voltage parallel capacitor is overhauled and is safeguarded.Power system unbalance protection action reason is one or many capacitance damages due to a certain phase mostly.When capacitor is damaged, it may appear that two kinds of situations：One is fallen after capacitor its fuse blows damaged（It is very directly perceived）, this capacitor discharge can just be detected；Two are not fallen after capacitor its fuse blows damaged（It is not directly perceived）Mutually all capacitors need to be carried out with electrical verification, electric discharge can just detect that workload is big, and security risk coefficient is also high.Its electrical verification, the safety of discharge operation are badly in need of solving.
When defective high-voltage capacitor is overhauled, need to discharge defective high-voltage parallel capacitor and capacitance is tested, prior art is typically to be discharged with the two poles of the earth of the direct short circuit high-voltage parallel capacitor of ground wire, because capacitor stores substantial amounts of residual charge, directly electric discharge easily causes personal injury to staff, while also easily causing device damage.And prior art lacks the monitoring device that residual voltage monitoring is carried out to capacitor, staff is judged whether capacitor also has residual charge, easily causes the damage of test instrumentation.
The content of the invention
The invention aims to guarantee test personnel into carry out inspection test job in capacitor bank when safety, devise a kind of multi-functional discharging detection device of high-voltage capacitor.
The technical solution adopted for the present invention to solve the technical problems is：
The multi-functional discharging detection device of high-voltage capacitor is made up of insulating bar and Multifunctional operating box two parts.
Described insulating bar is mainly fixedly connected by flexible pipe of shaping by jaw, earth stud with insulating telescopic pipe, it is easy to the rotation of different directions using sizing flexible pipe, jaw is facilitated to mount the terminals of the sleeve pipe of high-voltage capacitor, insulating bar is telescopic structure, can according to circumstances adjust length.The dynamic earth stud for determining to be set on jaw, for connecting transparent insulating layer ground wire.
Described Multifunctional operating box is mainly connected by jaw with earth stud, earth stud is connected by cable with the earth jack on detection case, earth jack is wired to the input of function switching switch on detection case, and the output end of function switching switch is connected with electrical verification detection unit, discharge examination unit, residual voltage detection unit, capacitance detection unit and direct discharge loop wire respectively.
The electrical verification detection unit of described system, discharge examination unit, residual voltage detection unit and capacitance detection unit are connected with data display screen wire respectively, and detection data is included on data display screen in real time, are conveniently checked.
Described battery case is connected with capacitance detection unit wire.
The earth stud of the detection case of described system is connected by ground wire with the earth.
The additional devices such as capacitance detecting button, SR, battery capacity indication lamp and power switch, convenient artificial operation are also devised with the detection case of described system.
The multi-functional discharging detection device of high-voltage capacitor of described system each detection unit is integrated in a unified detection case, the dynamic jaw of combination surely of detection case is fixedly connected with the pile crown of high-voltage capacitor during test, switched by function and switched, realize the switching of detection unit, only need to the various tests required for being completed by carrying out a high-voltage capacitor wiring, simple structure, safe operation reliability, and will not forget detection content during operation.
The beneficial effects of the invention are as follows：
The electrical verification monitoring device of the device, when switching and be switched to " through conductive discharge " position by switching, with sound and light of alarm.When switching switch is switched to " directly electric discharge " position, alarm free, completion is discharged between capacitor pole and pole over the ground.The device can be used to realize the electric capacity measuring that the monitoring of capacitor residue voltage and display are used to realize capacitor simultaneously, above-mentioned electrical verification, electric discharge, residual voltage, the operation of capacity measurement, are to determine jaw and be articulated in the conduit connection end of high-voltage capacitor to realize by the dynamic of insulating bar top.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the multi-functional discharging detection device structure principle chart of high-voltage capacitor.
Fig. 2 is electrical verification wiring diagram.
Fig. 3 is through discharge resistance discharge connection figure.
Fig. 4 is capacitor residue voltage monitoring wiring diagram.
Fig. 5 is that electric capacitance measurement is tried line chart.
Fig. 6 is direct short circuit wiring diagram.
Wherein, 1- high-voltage capacitors, 2- is dynamic to combine jaw surely, 3- earth studs, 4- sizing flexible pipes, 5- insulating telescopic pipes, the 6- transparent huge moons once ground wire, 7- earth jacks, 8- electrical verification monitoring devices, 9- discharge monitoring devices, 10- residual voltage monitoring devices, 11- data display screens, 12- SRs, 14- Multifunctional operating boxes, 15- battery cases, 16- lights indicator lamp, 17- power switches, 18- earth studs, 19- ground wires, 20- functions switching switch, 21- functions switch switch arrangement, 22- electrical verifications loop, 23- is through conductive discharge loop, 24- residual voltage monitoring circuits, the direct discharge loops of 25-, 26- capacitance measuring circuits, 27- switches switch contacts.
Specific embodiment
As shown in figure 1, the multi-functional discharging detection device of high-voltage capacitor is made up of insulating bar and Multifunctional operating box two parts.Insulating bar is mainly fixedly connected by flexible pipe 4 of shaping by the earth stud 3 of jaw 2 with insulating telescopic pipe 5, it is easy to the rotation of different directions using sizing flexible pipe 4, jaw 2 is facilitated to mount the terminals of the sleeve pipe of high-voltage capacitor, insulating bar is telescopic structure, can according to circumstances adjust length.The dynamic earth stud for determining to be set on jaw, for connecting transparent insulating layer ground wire.Multifunctional operating box is mainly connected by jaw 2 with earth stud 3, earth stud 3 is connected by cable 6 with the earth jack 7 on detection case, earth jack 7 is wired to the input of function switching switch 20 on detection case, and the output end of function switching switch 20 is connected with electrical verification detection unit 8, discharge examination unit 9, residual voltage detection unit 10, capacitance detection unit 11 and the direct wire of discharge loop 25 respectively.Electrical verification detection unit 8, discharge examination unit 9, residual voltage detection unit 10 and capacitance detection unit 11 are connected with data display screen wire respectively, and detection data is included on data display screen in real time, are conveniently checked.Battery case is connected with capacitance detection unit wire.The earth stud 18 of detection case is connected by ground wire 19 with the earth.The additional devices such as capacitance detecting button 12, SR 13, battery capacity indication lamp 16 and power switch 17, convenient artificial operation are also devised with detection case.
As shown in Figure 2, electrical verification wiring diagram, use the connecting bar of the device, ABC three-phases primary side to the PT that discharges carries out electrical verification operation, the realization of electrical verification is that --- ground wire --- feature operation case is completed by drop bar, and wherein the electrical verification monitoring device on feature operation case is realized by direct current electrical verification monitoring circuit（Shown comprising sound and light alarm and voltage）.
As shown in figure 3, through discharge resistance discharge connection figure, when identification is without electricity, you can untie A, B, C three-phase primary side of electric discharge PT, then carry out the operation of capacitance test, judging it is which phase capacitor is damaged.Then the capacitor discharge of single damage is carried out again.During using capacitor unit inspecting state, short circuit is grounded capacitor bank three-phase neutral point.The realization of electric discharge is that --- ground wire --- control box is completed by drop bar, and wherein the discharge monitoring device on control box is realized by the electric discharge monitoring circuit in parallel with discharge resistance therein（Electric discharge monitoring shows comprising sound and light alarm and voltage）, discharged by discharge resistance, reduce discharge current, it is ensured that equipment and personal safety, realize interpolar and pole is discharged over the ground.Discharge off, acousto-optic indicates to stop, and informs that testing crew electric discharge has been finished.Indicated by the residual voltage of the monitoring circuit that discharges, and after nulling is indicated, confirm discharge off.
As shown in figure 4, capacitor residue voltage monitoring wiring diagram, after being discharged through discharge resistance, due to the presence of recovery voltage between capacitor terminal.Can be switched by the switching on control box.Residual voltage monitoring position is switched to, residual voltage situation is shown.
The line chart as shown in figure 5, electric capacitance measurement is tried, in the case where remaining state is without changing, only the switching switch on control box need to be switched to capacitance test gear, you can capacitance test is carried out to capacitor, according to test case, when capacitance is undesirable, then change.When capacitance meets the requirements, without changing, insurance only need to be changed.
As shown in fig. 6, direct short circuit discharge connection figure, according to display residual voltage situation, is switched by the switching on control box.Direct short circuit discharge position is switched to, capacitor is thoroughly discharged.Insulating bar need not be now removed, is used equivalent to a ground wire, the safety in being easy to testing crew to work.By above-mentioned steps, the inspection of another capacitor is completed.
Claims (8)
1. a kind of multi-functional discharging detection device of high-voltage capacitor, is made up of insulating bar and Multifunctional operating box two parts.
2. the multi-functional discharging detection device of high-voltage capacitor according to claim 1, it is characterized in that described insulating bar is mainly fixedly connected by flexible pipe of shaping by jaw, earth stud with insulating telescopic pipe, it is easy to the rotation of different directions using sizing flexible pipe, jaw is facilitated to mount the terminals of the sleeve pipe of high-voltage capacitor, insulating bar is telescopic structure, can according to circumstances adjust length；The dynamic earth stud for determining to be set on jaw, for connecting transparent insulating layer ground wire.
3. the multi-functional discharging detection device of high-voltage capacitor according to claim 1, it is characterized in that described Multifunctional operating box is mainly connected by jaw with earth stud, earth stud is connected by cable with the earth jack on detection case, earth jack is wired to the input of function switching switch on detection case, and the output end of function switching switch is connected with electrical verification detection unit, discharge examination unit, residual voltage detection unit, capacitance detection unit and direct discharge loop wire respectively.
4. the multi-functional discharging detection device of high-voltage capacitor according to claim 1, it is characterized in that the electrical verification detection unit of described system, discharge examination unit, residual voltage detection unit and capacitance detection unit are connected with data display screen wire respectively, detection data is included on data display screen in real time, is conveniently checked.
5. the multi-functional discharging detection device of high-voltage capacitor according to claim 1, it is characterized in that described battery case is connected with capacitance detection unit wire.
6. the multi-functional discharging detection device of high-voltage capacitor according to claim 1, it is characterized in that the earth stud of the detection case of described system by ground wire be greatly connected.
7. the multi-functional discharging detection device of high-voltage capacitor according to claim 1, it is characterized in that being also devised with the additional devices such as capacitance detecting button, SR, battery capacity indication lamp and power switch on the detection case of described system, conveniently manually operates.
8. the multi-functional discharging detection device of high-voltage capacitor according to claim 1, it is characterized in that the multi-functional discharging detection device of the high-voltage capacitor of described system each detection unit is integrated in a unified detection case, the dynamic jaw of combination surely of detection case is fixedly connected with the pile crown of high-voltage capacitor during test, switched by function and switched, realize the switching of detection unit, only need to the various tests required for being completed by carrying out a high-voltage capacitor wiring, simple structure, safe operation reliability, and will not forget detection content during operation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510873479.4A CN106814288A (en) | 2015-12-02 | 2015-12-02 | A kind of multi-functional discharging detection device of high-voltage capacitor |
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| CN201510873479.4A CN106814288A (en) | 2015-12-02 | 2015-12-02 | A kind of multi-functional discharging detection device of high-voltage capacitor |
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| CN106814288A true CN106814288A (en) | 2017-06-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717145A (en) * | 2018-05-18 | 2018-10-30 | 沈阳工业大学 | A kind of high-pressure installation electric discharge safety detection device and its control method |
| CN110161340A (en) * | 2019-06-04 | 2019-08-23 | 格力电器（武汉）有限公司 | Electric discharge device and test macro |
| CN110261683A (en) * | 2018-08-17 | 2019-09-20 | 国网安徽省电力有限公司黄山供电公司 | A kind of Assembled high-voltage shunted capacitor set detecting device |
| CN113985225A (en) * | 2021-10-13 | 2022-01-28 | 中国南方电网有限责任公司超高压输电公司昆明局 | Capacitor discharge and measurement device |
-
2015
- 2015-12-02 CN CN201510873479.4A patent/CN106814288A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717145A (en) * | 2018-05-18 | 2018-10-30 | 沈阳工业大学 | A kind of high-pressure installation electric discharge safety detection device and its control method |
| CN110261683A (en) * | 2018-08-17 | 2019-09-20 | 国网安徽省电力有限公司黄山供电公司 | A kind of Assembled high-voltage shunted capacitor set detecting device |
| CN110161340A (en) * | 2019-06-04 | 2019-08-23 | 格力电器（武汉）有限公司 | Electric discharge device and test macro |
| CN113985225A (en) * | 2021-10-13 | 2022-01-28 | 中国南方电网有限责任公司超高压输电公司昆明局 | Capacitor discharge and measurement device |
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Application publication date: 20170609 |
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