CN104157485A - Acousto-optic indicator for switching degree of outdoor alternate current high voltage separation switch - Google Patents
Acousto-optic indicator for switching degree of outdoor alternate current high voltage separation switch Download PDFInfo
- Publication number
- CN104157485A CN104157485A CN201410344164.6A CN201410344164A CN104157485A CN 104157485 A CN104157485 A CN 104157485A CN 201410344164 A CN201410344164 A CN 201410344164A CN 104157485 A CN104157485 A CN 104157485A
- Authority
- CN
- China
- Prior art keywords
- floodgate
- pile crown
- resistance
- plug
- side pile
- 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.)
- Granted
Links
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses an acousto-optic indicator for switching degree of an outdoor alternate current high voltage separation switch. A left pile head (3) and a right pile head (4) are arranged at the top of a casing (2); the left pile head (3) is connected with a contact terminal (6) at the bottom of a switch blade of a high voltage separation switch (5); the right pile head (4) is connected with a fixed contact (7) of the switch blade; a judging unit (8) and a direct current testing unit (9) are arranged in the casing (1); both the left pile head (3) and the right pile head (4) are connected with the input end of the direct current testing unit (9); the output end of the direct current testing unit (9) is connected with the judging unit (8); the judging unit (8) is respectively connected with an audible alarm (10), a green alarm lamp (11) and a red alarm lamp (12).
Description
Technical field
The present invention 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 " plug-in strip " in medium-voltage line) is very important device for switching in medium-voltage distribution circuit, generally support the use with form and the medium voltage breaker of both sides plug-in strip or one-sided plug-in strip, its major function is: ensure medium-voltage distribution equipment and the safety of device in the time of service work, play isolation voltage, can not with cut off, drop into load current and cut-off short circuit current, only can be used for not producing some handover operation of powerful electric arc, that is to say that it does not have arc-suppression function.The use of plug-in strip forms obvious fracture and live part isolation while having ensured controller switching equipment maintenance, due to isolating switch do not have arc-control device and connecting-disconnecting function low, so when disconnecting switch operation, must observe grid switching operation order, while being power transmission, the bus bar side of first closing isolating switch, next line side isolating switch that closes, the circuit breaker that finally closes, has a power failure in above-mentioned contrary.The general structure of 24kV outdoor AC isolation switch, its electric connecting member is as follows: form fixed contact by a curved rectangular copper coin, its porose one end can be connected with bus by screw; The other end is shorter, and when combined floodgate, it contacts with cutting blade (moving contact).Article two, copper coin composition bow strip, is called again moving contact, the certain angle that can rotate around the axis, and when combined floodgate, it clamps fixed contact.The fault being caused by outdoor AC isolation switch (hereinafter to be referred as " plug-in strip ") reaches tens of times, and these faults are traced it to its cause deeply, majority is to put because operating plug-in strip does not close a floodgate that (exposure level of moving contact and fixed contact is inadequate in place, to directly cause the contact resistance too high), this has directly affected the safe and reliable operation of distribution line.When plug-in strip closes a floodgate unsuccessfully, medium voltage breaker, plug-in strip charging operation close when dynamic/static contact does not put in place when close contact.Now its contact area of moving contact and fixed contact is inadequate, and the edge of a knife closes not sternly, causes surface oxidation, contact resistance is increased, flowing through under the effect of plug-in strip load current, according to formula Q=I
2× R, now can cause dynamic/static contact contact portion temperature very high, and long-time running is at so high temperature, and the plug-in strip that is not incorporated into position just becomes the operating hidden danger point of circuit, tends to cause more serious consequence.Therefore while how guaranteeing plug-in strip operation, can be incorporated into position completely, just become a very good problem to study.
Summary of the invention
The invention provides a kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree, it increases the contact area of plug-in strip dynamic/static contact, contact resistance reduces, effectively contain the potential safety hazard of guillotine kind, reduce the medium-voltage line causing due to disconnecting link fault and have a power failure, thus safety operation level and the economic results in society of lifting electrical network.
The present invention has adopted 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, be provided with left side pile crown and right side pile crown at the top of housing, left side pile crown is connected with the contact of the plug-in strip bottom of high voltage isolator, right side pile crown is connected with the fixed contact of plug-in strip, in housing, be provided with judgement unit and DC test unit, left side pile crown is connected with the input of DC test unit with right side pile crown, the output of DC test unit is connected with judgement unit, judgement unit respectively with voice guard, green alarm lamp is connected with red alarm lamp, DC test unit is for measuring the contact of plug-in strip bottom to the D.C. resistance R of plug-in strip fixed contact
0, and by D.C. resistance R
0value return to judgement unit, judging unit judges according to the standard value of setting whether the disconnecting link of isolating switch closes a floodgate and puts in place, as the D.C. resistance R measuring
0while being greater than the standard value of setting, illustrate that disconnecting link does not close a floodgate to put in place, judging unit is reported to the police the transmission unsuccessful signal that closes a floodgate to voice guard, and red alarm lamp is bright simultaneously, represents to close a floodgate unsuccessful, if D.C. resistance R
0be less than or equal to standard value, illustrate that disconnecting link combined floodgate puts in place, judgement unit sends the successful signal that closes a floodgate to voice guard, and green alarm lamp is bright simultaneously, represent to close a floodgate successfully.
Between the contact of described left side pile crown and the bottom of high voltage isolator, be connected by left connecting line, left connecting line is inner wiring.Between described right side pile crown and the fixed contact of plug-in strip, be connected by right connecting line, 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 present invention has following beneficial effect: adopted after above technical scheme, originally be provided with D.C. resistance monitoring device, described D.C. resistance monitoring device is provided with housing, be provided with left side pile crown and right side pile crown at the top of housing, left side pile crown is connected with the contact of the plug-in strip bottom of high voltage isolator, right side pile crown is connected with the fixed contact of plug-in strip, in housing, be provided with judgement unit and DC test unit, left side pile crown is connected with the input of DC test unit with right side pile crown, the output of DC test unit is connected with judgement unit, judgement unit respectively with voice guard, green alarm lamp and red alarm lamp, DC test unit is for measuring the contact of plug-in strip bottom to the D.C. resistance R of plug-in strip fixed contact
0, and by D.C. resistance R
0value return to judgement unit, judging unit judges according to the standard value of setting whether the disconnecting link of isolating switch closes a floodgate and puts in place, as the D.C. resistance R measuring
0while being greater than the standard value of setting, illustrate that disconnecting link does not close a floodgate to put in place, judging unit is reported to the police the transmission unsuccessful signal that closes a floodgate to voice guard, and red alarm lamp is bright simultaneously, represents to close a floodgate unsuccessful, if D.C. resistance R
0be less than or equal to standard value, illustrate that disconnecting link combined floodgate puts in place, judgement unit sends the successful signal that closes a floodgate to voice guard, green alarm lamp is bright simultaneously, represent to close a floodgate successfully, installing additional by D.C. resistance monitoring device like this, can whether close a floodgate to put in place for plug-in strip and carry out a differentiation intuitively, plug-in strip closes a floodgate and puts in place, contact resistance is less than the indicating device signal two of sounding of set point, green light simultaneously, represent that dynamic/static contact contact puts in place, thereby the contact area of plug-in strip dynamic/static contact is increased, contact resistance reduces, effectively contain the potential safety hazard of guillotine kind, reducing the medium-voltage line causing due to disconnecting link fault has a power failure, thereby promote safety operation level and the economic results in society of electrical network.Between the contact of the bottom of the present invention's left side pile crown and high voltage isolator, be connected by left connecting line, left connecting line is inner wiring, between right side pile crown and the fixed contact of plug-in strip, be connected by right connecting line, right connecting line is inner wiring, can avoid like this generation of short circuit phenomenon.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
In Fig. 1, the invention 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, be provided with left side pile crown 3 and right side pile crown 4 at the top of housing 2, left side pile crown 3 is connected with the contact 6 of the plug-in strip bottom of high voltage isolator 5, between the contact 6 of described left side pile crown 3 and the bottom of high voltage isolator 5, be connected by left connecting line 14, left connecting line 14 is inner wiring, right side pile crown 4 is connected with the fixed contact 7 of plug-in strip, between described right side pile crown 4 and the fixed contact 7 of plug-in strip, be connected by right connecting line 13, right connecting line 13 is inner wiring, in housing 1, be provided with judgement unit 8 and DC test unit 9, left side pile crown 3 is connected with the input of DC test unit 9 with right side pile crown 4, the output of DC test unit 9 is connected with judgement unit 8, judgement unit 8 respectively with voice guard 10, green alarm lamp 11 is connected with red alarm lamp 12, DC test unit 9 is for measuring the contact 6 of plug-in strip bottom to the D.C. resistance R of plug-in strip fixed contact 7
0, and by D.C. resistance R
0value return to judgement unit 8, judging unit 8 judges according to the standard value of setting whether the disconnecting link of isolating switch 5 closes a floodgate and puts in place, as the D.C. resistance R measuring
0while being greater than the standard value of setting, illustrate that disconnecting link does not close a floodgate to put in place, judging unit 8 is reported to the police the transmission unsuccessful signal that closes a floodgate to voice guard 10, and red alarm lamp 12 is bright simultaneously, represents to close a floodgate unsuccessful, if D.C. resistance R
0be less than or equal to standard value, illustrate that disconnecting link combined floodgate puts in place, judgement unit 8 sends the successful signal that closes a floodgate to voice guard 10, green alarm lamp 11 is bright simultaneously, represent to close a floodgate successfully, described D.C. resistance monitoring device 1 is close on the base of high voltage isolator 5, and described D.C. resistance monitoring 1 device is set to passive D.C. resistance monitoring device.
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), be provided with left side pile crown (3) and right side pile crown (4) at the top of housing (2), left side pile crown (3) is connected with the contact (6) of the plug-in strip bottom of high voltage isolator (5), right side pile crown (4) is connected with the fixed contact (7) of plug-in strip, in housing (1), be provided with judgement unit (8) and DC test unit (9), left side pile crown (3) is connected with the input of DC test unit (9) with right side pile crown (4), the output of DC test unit (9) is connected with judgement unit (8), judgement unit (8) respectively with voice guard (10), green alarm lamp (11) is connected with red alarm lamp (12), DC test unit (9) is for measuring the contact (6) of plug-in strip bottom to the D.C. resistance R of plug-in strip fixed contact (7)
0, and by D.C. resistance R
0value return to judgement unit (8), judging unit (8) judges according to the standard value of setting whether the disconnecting link of isolating switch (5) closes a floodgate and puts in place, as the D.C. resistance R measuring
0while being greater than the standard value of setting, illustrate that disconnecting link does not close a floodgate to put in place, judging unit (8) will send the unsuccessful signal that closes a floodgate and report to the police to voice guard (10), and red alarm lamp (12) is bright simultaneously, represent to close a floodgate unsuccessful, if D.C. resistance R
0be less than or equal to standard value, illustrate that disconnecting link combined floodgate puts in place, judgement unit (8) sends the successful signal that closes a floodgate to voice guard (10), and green alarm lamp (11) is bright simultaneously, represents to close a floodgate successfully.
2. the Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree according to claim 1, between the contact (6) of the left side pile crown (3) described in it is characterized in that and the bottom of high voltage isolator (5), be connected by left connecting line (14), left connecting line (14) is inner wiring.
3. the Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree according to claim 1, 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, and 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. according to the Acoustooptic indicator of the outdoor AC high-voltage isolating switch combined floodgate degree described in claim 1 or 4, it 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 |
|---|---|---|---|
| CN201410344164.6A CN104157485B (en) | 2014-07-20 | 2014-07-20 | Acousto-optic indicator for switching degree of outdoor alternate current high voltage separation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344164.6A CN104157485B (en) | 2014-07-20 | 2014-07-20 | Acousto-optic indicator for switching degree of outdoor alternate current high voltage separation switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104157485A true CN104157485A (en) | 2014-11-19 |
| CN104157485B CN104157485B (en) | 2017-02-15 |
Family
ID=51882962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410344164.6A Active CN104157485B (en) | 2014-07-20 | 2014-07-20 | Acousto-optic indicator for switching degree of outdoor alternate current high voltage separation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104157485B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098455A (en) * | 2016-08-09 | 2016-11-09 | 苏州华安普电力科技股份有限公司 | A kind of disconnecting switch detecting Guan Bi situation |
| CN107546047A (en) * | 2016-10-19 | 2018-01-05 | 河南众联云科工程技术有限公司 | Division state-detection breaker |
| CN107546048A (en) * | 2016-10-19 | 2018-01-05 | 河南众联云科工程技术有限公司 | Safe circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3163736A (en) * | 1961-05-23 | 1964-12-29 | S & C Electric Co | High voltage gas type circuit interrupter |
| CN202018479U (en) * | 2011-04-17 | 2011-10-26 | 陈建文 | High-precision testing device for portable-type loop resistor |
| CN202957182U (en) * | 2012-11-23 | 2013-05-29 | 江苏省电力公司泰州供电公司 | Closing degree indicating device of outdoor alternating-current high-voltage isolator |
| CN103743952A (en) * | 2013-11-28 | 2014-04-23 | 江苏省如高高压电器有限公司 | Portable loop resistance test tool of isolation switch |
-
2014
- 2014-07-20 CN CN201410344164.6A patent/CN104157485B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3163736A (en) * | 1961-05-23 | 1964-12-29 | S & C Electric Co | High voltage gas type circuit interrupter |
| CN202018479U (en) * | 2011-04-17 | 2011-10-26 | 陈建文 | High-precision testing device for portable-type loop resistor |
| CN202957182U (en) * | 2012-11-23 | 2013-05-29 | 江苏省电力公司泰州供电公司 | Closing degree indicating device of outdoor alternating-current high-voltage isolator |
| CN103743952A (en) * | 2013-11-28 | 2014-04-23 | 江苏省如高高压电器有限公司 | Portable loop resistance test tool of isolation switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098455A (en) * | 2016-08-09 | 2016-11-09 | 苏州华安普电力科技股份有限公司 | A kind of disconnecting switch detecting Guan Bi situation |
| CN107546047A (en) * | 2016-10-19 | 2018-01-05 | 河南众联云科工程技术有限公司 | Division state-detection breaker |
| CN107546048A (en) * | 2016-10-19 | 2018-01-05 | 河南众联云科工程技术有限公司 | Safe circuit breaker |
| CN107546048B (en) * | 2016-10-19 | 2020-04-14 | 河南众联云科工程技术有限公司 | Safety circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104157485B (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101853554B (en) | Fireproofing pre-warning monitoring method for unmanned base station and system thereof | |
| CN104157485B (en) | Acousto-optic indicator for switching degree of outdoor alternate current high voltage separation switch | |
| US20150077122A1 (en) | Safety device and method for an electric installation | |
| CN203180512U (en) | Low tension side power supply surge protector | |
| CN204348541U (en) | A kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree | |
| KR101077128B1 (en) | Diagnosis system for circuit breaker of power utilities | |
| CN101900783A (en) | High-voltage testing equipment | |
| CN211906587U (en) | Motor overload protection and alarm device training platform in electric dragging system | |
| CN104917158A (en) | Arc light detection and protection system for switchgear | |
| CN204243738U (en) | Switch divide-shut brake coil burn-out-proof protective device | |
| CN205748304U (en) | A kind of disconnecting switch laser straightening instrument | |
| CN108896907B (en) | Switching-on and switching-off time testing device and method for double-break circuit breaker | |
| CN202957182U (en) | Closing degree indicating device of outdoor alternating-current high-voltage isolator | |
| CN202134903U (en) | Electrical line short circuit current limit and protection device | |
| CN104505823A (en) | Method for power maintenance through transient power stop and transient stop selective reclosing circuit | |
| CN203746733U (en) | Improved GW4-10 isolating switch | |
| CN210156907U (en) | Electric fire prevention current-limiting protector | |
| KR101360137B1 (en) | Safety jumper equipment | |
| CN210155279U (en) | Multi-cable motor test platform | |
| CN116365635B (en) | Short-circuit protection circuit, method and device for power battery pack | |
| CN204706872U (en) | A kind of temperature rise electric contact protective device of power high voltage switch cubicle fault | |
| CN208984775U (en) | A kind of auxiliary device of breaker disjunction test | |
| CN210014843U (en) | Internal temperature early warning device of switch cabinet | |
| CN201829822U (en) | High-voltage quick current-limiting fuse protective device | |
| CN217159267U (en) | 10KV PT cabinet breakdown safety state feedback circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |