CN204348541U - A kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree - Google Patents
A kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree Download PDFInfo
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- CN204348541U CN204348541U CN201420401941.1U CN201420401941U CN204348541U CN 204348541 U CN204348541 U CN 204348541U CN 201420401941 U CN201420401941 U CN 201420401941U CN 204348541 U CN204348541 U CN 204348541U
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- Prior art keywords
- pile crown
- side pile
- outdoor
- strip
- plug
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- 238000012806 monitoring device Methods 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree, it is provided with D.C. resistance monitoring device (1), described D.C. resistance monitoring device (1) is provided with housing (2), left side pile crown (3) and right side pile crown (4) is provided with at the top of housing (2), left side pile crown (3) is connected with the contact (6) bottom the plug-in strip of high voltage isolator (5), right side pile crown (4) is connected with the fixed contact (7) of plug-in strip, discriminating gear (8) and direct current test apparatus (9) is provided with in housing (1), left side pile crown (3) is connected with the input of right side pile crown (4) with direct current test apparatus (9), the output of direct current test apparatus (9) is connected with discriminating gear (8), discriminating gear (8) respectively with voice guard (10), green alarm lamp (11) is connected with red alarm lamp (12).
Description
Technical field
The utility model relates to a kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree.
Background technology
24kV outdoor AC high-voltage isolating switch (being commonly called as in medium-voltage line " plug-in strip ") is very important device for switching in medium-voltage distribution circuit, generally support the use with the form of both sides plug-in strip or one-sided plug-in strip and medium voltage breaker, its major function is: ensure medium-voltage distribution equipment and the safety of device when service work, play isolation voltage, can not with cut-out, drop into load current and cut-off short circuit current, only can be used for some handover operation not producing powerful electric arc, that is to say that it does not have arc-suppression function.Obvious fracture is formed and live part is isolated when the use of plug-in strip ensure that controller switching equipment overhauls, due to isolating switch do not have arc-control device and connecting-disconnecting function low, so during disconnecting switch operation, grid switching operation order must be observed, namely during power transmission, bus bar side of first closing isolating switch, next line side isolating switch that closes, finally close circuit breaker, has a power failure then on the contrary above-mentioned.The general structure of 24kV outdoor AC isolation switch, its electric connecting member is as follows: the copper coin curving right angle by forms fixed contact, and its porose one end is connected with bus by screw; The other end is shorter, and during combined floodgate, it contacts with cutting blade (moving contact).Article two, copper coin composition bow strip, be also called moving contact, can rotate around the axis certain angle, and during combined floodgate, it clamps fixed contact.The fault caused by outdoor AC isolation switch (hereinafter referred to as " plug-in strip ") nearly tens of times, and these faults are traced it to its cause deeply, majority puts because operating plug-in strip does not close a floodgate that (exposure level of moving contact and fixed contact is inadequate in place, by directly causing, contact resistance is too high), this directly affects the safe and reliable operation of distribution line.When plug-in strip closes a floodgate unsuccessful, close when namely not putting in place when the non-close contact of dynamic/static contact medium voltage breaker, then plug-in strip charging operation.Now not, the edge of a knife closes not tight, causes surface oxidation, and contact resistance is increased, under the effect flowing through plug-in strip load current, according to formula Q=I for moving contact and its contact area of fixed contact
2× R, now can cause dynamic/static contact contact portion temperature very high, and at such high temperatures, the plug-in strip not being incorporated into position just becomes the operating hidden danger point of circuit, often causes more serious consequence in long-time running.Position can be incorporated into completely when therefore how to guarantee that plug-in strip operates, just become a very good problem to study.
Summary of the invention
The utility model provides a kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree, it makes the contact area of plug-in strip dynamic/static contact increase, contact resistance reduces, effectively contain the potential safety hazard of guillotine kind, reduce the medium-voltage line power failure because disconnecting link fault causes, thus promote safety operation level and the economic results in society of electrical network.
The utility model have employed following technical scheme: a kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree, it is provided with D.C. resistance monitoring device, described D.C. resistance monitoring device is provided with housing, left side pile crown and right side pile crown is provided with at the top of housing, left side pile crown is connected with the contact bottom the plug-in strip of high voltage isolator, right side pile crown is connected with the fixed contact of plug-in strip, discriminating gear and direct current test apparatus is provided with in housing, left side pile crown is connected with the input of direct current test apparatus with right side pile crown, the output of direct current test apparatus is connected with discriminating gear, discriminating gear respectively with voice guard, green alarm lamp is connected with red alarm lamp.
Be connected by left connecting line between described left side pile crown and the contact of the bottom of high voltage isolator, left connecting line is inner wiring.Be connected by right connecting line between described right side pile crown and the fixed contact of plug-in strip, right connecting line is inner wiring.Described D.C. resistance monitoring device is close on the base of high voltage isolator.Described D.C. resistance monitoring device is set to passive D.C. resistance monitoring device.
The utility model has following beneficial effect: after have employed above technical scheme, the utility model is provided with D.C. resistance monitoring device, described D.C. resistance monitoring device is provided with housing, left side pile crown and right side pile crown is provided with at the top of housing, left side pile crown is connected with the contact bottom the plug-in strip of high voltage isolator, right side pile crown is connected with the fixed contact of plug-in strip, discriminating gear and direct current test apparatus is provided with in housing, left side pile crown is connected with the input of direct current test apparatus with right side pile crown, the output of direct current test apparatus is connected with discriminating gear, discriminating gear respectively with voice guard, green alarm lamp is connected with red alarm lamp, installing additional like this by D.C. resistance monitoring device, whether can close a floodgate to put in place for plug-in strip and carry out one and differentiate intuitively, plug-in strip closes a floodgate and puts in place, contact resistance be less than set point then indicating device to sound signal two, green light simultaneously, represent that dynamic/static contact contact puts in place, thus the contact area of plug-in strip dynamic/static contact is increased, contact resistance reduces, effectively contain the potential safety hazard of guillotine kind, reduce the medium-voltage line power failure because disconnecting link fault causes, thus promote safety operation level and the economic results in society of electrical network.Be connected by left connecting line between pile crown and the contact of the bottom of high voltage isolator on the left of the utility model, left connecting line is inner wiring, be connected by right connecting line between right side pile crown and the fixed contact of plug-in strip, right connecting line is inner wiring, can avoid the generation of short circuit phenomenon like this.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In FIG, the utility model provides a kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree, it is provided with D.C. resistance monitoring device 1, described D.C. resistance monitoring device 1 is provided with housing 2, left side pile crown 3 and right side pile crown 4 is provided with at the top of housing 2, left side pile crown 3 is connected with the contact 6 bottom the plug-in strip of high voltage isolator 5, be connected by left connecting line 14 between described left side pile crown 3 and the contact 6 of the bottom of high voltage isolator 5, left connecting line 14 is inner wiring, right side pile crown 4 is connected with the fixed contact 7 of plug-in strip, be connected by right connecting line 13 between described right side pile crown 4 and the fixed contact 7 of plug-in strip, right connecting line 13 is inner wiring, discriminating gear 8 and direct current test apparatus 9 is provided with in housing 1, left side pile crown 3 is connected with the input of right side pile crown 4 with direct current test apparatus 9, the output of direct current test apparatus 9 is connected with discriminating gear 8, discriminating gear 8 respectively with voice guard 10, green alarm lamp 11 is connected with red alarm lamp 12, described D.C. resistance monitoring device 1 is close on the base of high voltage isolator 5, described D.C. resistance is monitored 1 device and is set to passive D.C. resistance monitoring device, direct current test apparatus 9 measures the D.C. resistance R of contact 6 to the plug-in strip fixed contact 7 bottom plug-in strip
0, and by D.C. resistance R
0value return to discriminating gear 8, whether judgment means 8 closes a floodgate according to the disconnecting link that the standard value of setting carrys out detection and isolation switch 5 is put in place, as the D.C. resistance R measured
0when being greater than the standard value of setting, then illustrate that disconnecting link does not close a floodgate and put in place, the unsuccessful signal of transmission combined floodgate is reported to the police to voice guard 10 by judgment means 8, and red alarm lamp 12 is bright simultaneously, represents that combined floodgate is unsuccessful, if D.C. resistance R
0be less than or equal to standard value, then illustrate that disconnecting link closes a floodgate and put in place, discriminating gear 8 sends the successful signal that closes a floodgate to voice guard 10, and green alarm lamp 11 is bright simultaneously, represents and closes a floodgate successfully.
Claims (5)
1. the Acoustooptic indicator of an outdoor AC high-voltage isolating switch combined floodgate degree, it is characterized in that it is provided with D.C. resistance monitoring device (1), described D.C. resistance monitoring device (1) is provided with housing (2), left side pile crown (3) and right side pile crown (4) is provided with at the top of housing (2), left side pile crown (3) is connected with the contact (6) bottom the plug-in strip of high voltage isolator (5), right side pile crown (4) is connected with the fixed contact (7) of plug-in strip, discriminating gear (8) and direct current test apparatus (9) is provided with in housing (1), left side pile crown (3) is connected with the input of right side pile crown (4) with direct current test apparatus (9), the output of direct current test apparatus (9) is connected with discriminating gear (8), discriminating gear (8) respectively with voice guard (10), green alarm lamp (11) is connected with red alarm lamp (12).
2. the Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree according to claim 1, it is characterized in that being connected by left connecting line (12) between described left side pile crown (3) and the contact (6) of the bottom of high voltage isolator (5), left connecting line (12) is inner wiring.
3. the Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree according to claim 1, it is characterized in that being connected by right connecting line (13) between described right side pile crown (4) and the fixed contact (7) of plug-in strip, right connecting line (13) is inner wiring.
4. the Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree according to claim 1, is characterized in that described D.C. resistance monitoring device (1) is close on the base of high voltage isolator (5).
5. the Acoustooptic indicator of the outdoor AC high-voltage isolating switch combined floodgate degree according to claim 1 or 4, is characterized in that described D.C. resistance monitoring (1) device is set to passive D.C. resistance monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420401941.1U CN204348541U (en) | 2014-07-20 | 2014-07-20 | A kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420401941.1U CN204348541U (en) | 2014-07-20 | 2014-07-20 | A kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204348541U true CN204348541U (en) | 2015-05-20 |
Family
ID=53231794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420401941.1U Expired - Fee Related CN204348541U (en) | 2014-07-20 | 2014-07-20 | A kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204348541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786169A (en) * | 2018-12-28 | 2019-05-21 | 国家电网公司 | New distribution net isolation switch |
-
2014
- 2014-07-20 CN CN201420401941.1U patent/CN204348541U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786169A (en) * | 2018-12-28 | 2019-05-21 | 国家电网公司 | New distribution net isolation switch |
| CN109786169B (en) * | 2018-12-28 | 2024-03-01 | 国家电网公司 | Disconnecting switch of power distribution network |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20180720 |