CN205333793U - Experimental circuit structure of solid insulation looped netowrk cabinet power frequency voltage - Google Patents
Experimental circuit structure of solid insulation looped netowrk cabinet power frequency voltage Download PDFInfo
- Publication number
- CN205333793U CN205333793U CN201520868285.0U CN201520868285U CN205333793U CN 205333793 U CN205333793 U CN 205333793U CN 201520868285 U CN201520868285 U CN 201520868285U CN 205333793 U CN205333793 U CN 205333793U
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- CN
- China
- Prior art keywords
- solid insulation
- circuit structure
- main unit
- ring main
- insulation ring
- 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
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Abstract
The utility model discloses an experimental circuit structure of solid insulation looped netowrk cabinet power frequency voltage, including voltage regulator AT, experimental electric elements TO is treated to transformer TT and solid insulation looped netowrk cabinet, voltage regulator AT's the external alternating current power supply of input, voltage regulator AT's output is connected with transformer TT's primary wiring end, it has voltmeter V1 to connect in parallel between transformer TT's the primary wiring end, behind transformer TT's the secondary coil wiring end difference connect protection resistance rp and current transformer CT, the voltage input end of treating experimental electric elements TO with solid insulation looped netowrk cabinet is connected, the electric capacity C1 who establishes ties is mutually treated to be connected with by solid insulation looped netowrk cabinet between experimental electric elements TO's the voltage input end, C2, electric capacity C2 goes up the parallelly connected voltmeter V2 that has. The utility model discloses circuit structure is simple, and the wiring is simple and easy, and maneuverability is good, the fine needs that have satisfied the in -service use.
Description
Technical field
This utility model relates to solid insulation ring main unit field, specifically a kind of solid insulation ring main unit working-frequency voltage test circuit structure。
Background technology
Solid insulation ring main unit is the outer sealing of a kind of collection, isolated bus and three kinds of technology of assembled unit miniaturization are in one, switch and high-voltage live parts adopt epoxy resin to carry out integrated poured, using epoxy resin sealing as electrical body over the ground and the new distribution equipment of phase insulation。Solid insulation ring main unit does not discharge any noxious substance, without the hidden danger of gas leakage blast with internal arcing, has insulating properties height, the features such as bulk strength is high, non-maintaining。
Solid insulation ring main unit is according to different configurations, it may be achieved cut-off load current, cut-off short circuit current, power supply entering line manually with the function such as automatic switchover, current quick, the one-phase ground protection of small current neutral grounding system, communication。
Working-frequency voltage test is for carrying out the dielectric(al) test under assigned voltage to each electric elements of solid insulation ring main unit, to examine the dielectric level of solid insulation ring main unit, it has been found that the insulation defect of solid insulation ring main unit, weighs the ability of overvoltage。The most wiring of existing working-frequency voltage test circuit is complicated, poor operability, it is impossible to well meet actually used needs。
Utility model content
The purpose of this utility model is the defect in order to overcome prior art to exist and deficiency, it is provided that a kind of solid insulation ring main unit working-frequency voltage test circuit structure。
The technical solution of the utility model is as follows:
A kind of solid insulation ring main unit working-frequency voltage test circuit structure, including pressure regulator AT, transformator TT and solid insulation ring main unit electrical equipment TO to be tested, it is characterized in that: the input external AC power supply of described pressure regulator AT, the outfan of pressure regulator AT is connected with the primary coil terminals of described transformator TT, it is parallel with voltmeter V1 between the primary coil terminals of described transformator TT, after the secondary coil terminals of transformator TT connect protective resistance Rp summation current transformer CT respectively, it is connected with the voltage input end of described solid insulation ring main unit electrical equipment TO to be tested, it is connected to, between the voltage input end of described solid insulation ring main unit electrical equipment TO to be tested, the electric capacity C1 being in series, C2, described electric capacity C2 is parallel with voltmeter V2。
Described solid insulation ring main unit working-frequency voltage test circuit structure, it is characterised in that: described electric capacity C1 is high-voltage capacitance, and described electric capacity C2 is low-voltage capacitance。
The beneficial effects of the utility model:
This utility model circuit structure is simple, and wiring is simple and easy, and operability is good, can quickly examine the dielectric level of solid insulation ring main unit, and find the insulation defect of solid insulation ring main unit, the effective ability weighing overvoltage in time, well meet actually used needs。
Accompanying drawing explanation
Fig. 1 is this utility model circuit structure schematic diagram。
Detailed description of the invention
Referring to Fig. 1, a kind of solid insulation ring main unit working-frequency voltage test circuit structure, including pressure regulator AT, transformator TT and solid insulation ring main unit electrical equipment TO to be tested, the input external AC power supply of pressure regulator AT, the outfan of pressure regulator AT is connected with the primary coil terminals of transformator TT, it is parallel with voltmeter V1 between the primary coil terminals of transformator TT, after the secondary coil terminals of transformator TT connect protective resistance Rp summation current transformer CT respectively, it is connected with the voltage input end of solid insulation ring main unit electrical equipment TO to be tested, it is connected to, between the voltage input end of solid insulation ring main unit electrical equipment TO to be tested, the electric capacity C1 being in series, C2, electric capacity C2 is parallel with voltmeter V2。
In this utility model, electric capacity C1 is high-voltage capacitance, electric capacity C2 be low-voltage capacitance。
Claims (2)
1. a solid insulation ring main unit working-frequency voltage test circuit structure, including pressure regulator AT, transformator TT and solid insulation ring main unit electrical equipment TO to be tested, it is characterized in that: the input external AC power supply of described pressure regulator AT, the outfan of pressure regulator AT is connected with the primary coil terminals of described transformator TT, it is parallel with voltmeter V1 between the primary coil terminals of described transformator TT, after the secondary coil terminals of transformator TT connect protective resistance Rp summation current transformer CT respectively, it is connected with the voltage input end of described solid insulation ring main unit electrical equipment TO to be tested, it is connected to, between the voltage input end of described solid insulation ring main unit electrical equipment TO to be tested, the electric capacity C1 being in series, C2, described electric capacity C2 is parallel with voltmeter V2。
2. solid insulation ring main unit working-frequency voltage test circuit structure according to claim 1, it is characterised in that: described electric capacity C1 is high-voltage capacitance, and described electric capacity C2 is low-voltage capacitance。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520868285.0U CN205333793U (en) | 2015-10-29 | 2015-10-29 | Experimental circuit structure of solid insulation looped netowrk cabinet power frequency voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520868285.0U CN205333793U (en) | 2015-10-29 | 2015-10-29 | Experimental circuit structure of solid insulation looped netowrk cabinet power frequency voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205333793U true CN205333793U (en) | 2016-06-22 |
Family
ID=56213396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520868285.0U Expired - Fee Related CN205333793U (en) | 2015-10-29 | 2015-10-29 | Experimental circuit structure of solid insulation looped netowrk cabinet power frequency voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205333793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374683A (en) * | 2018-08-24 | 2019-02-22 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of screening electrodes line is to cooling water pipe lesion mimic experimental rig and method |
-
2015
- 2015-10-29 CN CN201520868285.0U patent/CN205333793U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374683A (en) * | 2018-08-24 | 2019-02-22 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of screening electrodes line is to cooling water pipe lesion mimic experimental rig and method |
| CN109374683B (en) * | 2018-08-24 | 2021-01-12 | 中国南方电网有限责任公司超高压输电公司广州局 | Cooling water pipe damage simulation test device and method for voltage-sharing electrode wire |
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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: 20160622 Termination date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |