CN110021486A - A kind of no-voltage trip auto recloser - Google Patents
A kind of no-voltage trip auto recloser Download PDFInfo
- Publication number
- CN110021486A CN110021486A CN201910180974.5A CN201910180974A CN110021486A CN 110021486 A CN110021486 A CN 110021486A CN 201910180974 A CN201910180974 A CN 201910180974A CN 110021486 A CN110021486 A CN 110021486A
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- China
- Prior art keywords
- relay
- time
- voltage trip
- delay relay
- delay
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Keying Circuit Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention provides a kind of no-voltage trip auto reclosers, for distribution system, it is connect with the breaker of distribution system, the breaker connection includes switch knob AK, the no-voltage trip auto recloser includes automatic closing circuit, and the automatic closing circuit includes time-delay relay S1, relay U2 and time-delay relay S2.The contact switch U21 of the switch knob AK, the contact switch S11 of time-delay relay S1 and relay U2 form series loop；The time-delay relay S1 is normally opened, and the coil of the time-delay relay S1 connects the source side of the distribution system；The time-delay relay S2 is normally opened, and the coil of the time-delay relay S2 connects the load side of the distribution system；The contact switch S21 of the time-delay relay S2, the coil of relay U2, the distribution system load side series connection together；The relay U2 is normally closed；After the source side is powered, pass through the no-voltage trip auto recloser, distribution system automatic closing.
Description
Technical field
The present invention relates to a kind of no-voltage trip auto reclosers.
Background technique
For system stable operation and equipment safety reliability service, the distribution transformer of 10KV distribution system is respectively mounted decompression
Trip gear, after distribution system breaks down, no-voltage trip device disconnects distribution transformer low-voltage load, when system is restored just
Chang Hou is reached the distribution transformer of related no-voltage trip by operation power personnel, closed a floodgate manually, and 10kV in short-term
The low-voltage customer decompression that high pressure power failure (fault outage, earthing wire-selecting, load, which are cut, to be changed) will cause large area has a power failure, and just needs at this time
A large amount of personnel, vehicle are put into the work for restoring low-voltage power supply, and low-voltage customer power supply quickly can't be timely restored.
Summary of the invention
The present invention is in order to solve the above technical problems, provide a kind of no-voltage trip auto recloser, for power distribution system
System, connect with the breaker of distribution system, and the breaker connection includes switch knob AK, and the switch knob AK is commonly to open
Close, when the no-voltage trip device no-voltage trip of breaker after, when distribution system is sent a telegram here again, press the switch knob AK,
The closing coil of the no-voltage trip device is powered, and generates excitation, pushes the closing switch in closing coil, and then distribution system
Power supply side and load side connection.
The no-voltage trip auto recloser includes automatic closing circuit, the automatic closing circuit include delay after
Electric appliance S1, relay U2 and time-delay relay S2.
The contact switch U21 of the switch knob AK, the contact switch S11 of time-delay relay S1 and relay U2 form string
Join circuit；
The time-delay relay S1 is normally opened, and the coil of the time-delay relay S1 connects the power supply of the distribution system
Side；
The time-delay relay S2 is normally opened, and the coil of the time-delay relay S2 connects the load of the distribution system
Side；
The load side series connection of the contact switch S21 of the time-delay relay S2, the coil of relay U2, the distribution system
Together；
The relay U2 is normally closed；
After the source side is powered, the coil of the time-delay relay S1 charges and contact switch S11 is in setting time
After be closed, the series loop connection, the switch knob AK short circuit making, the no-voltage trip device energization work of the breaker
Make, and then the distribution system is closed a floodgate, the source side and the load side connection, i.e., the described load side is powered, the delay
The coil of relay S2 charges and contact switch S21 is closed after setting time, and the coil of the relay U2 is powered and contact
Switch U21 is disconnected, and the series loop disconnects.
Optionally, in the series loop, the contact of the contact switch S11 and relay U2 of the time-delay relay S1 are opened
It closes and is in series with resistance R1 between U21, prevent control loop current break from causing personnel and equipment damage.
Optionally, the automatic closing circuit includes relay U1, and the contact switch U11 of the relay U1 is connected on institute
It states in series loop.
Optionally, the automatic closing circuit includes relay U1 and R1；The contact switch U11 of the relay U1 goes here and there
It is associated in the series loop；The R1 is connected on the contact of the contact switch S11 and relay U2 of the time-delay relay S1
Between switch U21.
Optionally, after the time-delay relay S1 is powered, delay setting is closed between 30 seconds to 8 minutes.
Optionally, after the time-delay relay S2 is powered, delay setting is closed between 0.1 second to 10 seconds.
Optionally, including shell, the shell is equipped with strong magnets, easy for installation, directly absorption transformer-cabinet, not
In the case where needing power failure, installation only needs 5 minutes, does not influence equipment normal operation, can be according to any position of field device situation
Set installation.The external wire connecting clip of described device becomes interior aluminium row installation convenient for case.
Optionally, the switch knob AK uses electric switch-on and closing by hand mode.
Optionally, it is equipped with switch KK between the automatic closing circuit and the source side of the distribution system, works as transformer
High and low pressure can disconnect switch KK when overhauling, and prevent error action of device from making.
Corresponding, a kind of no-voltage trip auto recloser combination weighs automatically including a kind of N number of above-mentioned no-voltage trip
Closing device is separately mounted to N number of transformer, and the delay of the time-delay relay S1 of N number of no-voltage trip auto recloser
Setting time mutually staggers.
By the above-mentioned description of this invention it is found that compared to the prior art, the present invention has the advantage that
The application proposes a kind of no-voltage trip auto recloser and combinations thereof, the no-voltage trip automatic reclosing dress
Set can automatic reclosing, effectively raise person works' efficiency, prevent from failing to reach scene for a long time because of personnel closing a floodgate and make
At low-voltage customer have a power failure for a long time, meanwhile, there is delay in 30 seconds to 8 minutes to be arranged, can make more by limit for length when present apparatus reclosing
Platform transformer closes a floodgate respectively, and the excitation surge current that anti-locking system closes a floodgate is excessive, effectively reduces system excitation surge current to equipment
Harm, it is ensured that system safe and reliable operation.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, for those of ordinary skills, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Wherein:
Fig. 1 is a kind of no-voltage trip auto recloser elementary diagram one of the present invention；
Fig. 2 is a kind of no-voltage trip auto recloser elementary diagram two of the present invention；
Fig. 3 is a kind of elementary diagram one of the no-voltage trip auto recloser of the present invention in box type transformer；
Fig. 4 is a kind of elementary diagram two of the no-voltage trip auto recloser of the present invention in box type transformer；
Fig. 5 is cell distribution transformer input coefficient curent change table (no-voltage trip device when cell does not install the application
It exits)；
Fig. 6 is that (no-voltage trip device is certainly for cell distribution transformer input coefficient curent change table when cell installs the application
Dynamic reclosing device investment).
Specific embodiment
In order to be clearer and more clear technical problems, technical solutions and advantages to be solved, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Embodiment one:
A kind of no-voltage trip auto recloser is used for distribution system, connect with the breaker of distribution system, described disconnected
Device connection in road includes switch knob AK.
The no-voltage trip auto recloser includes automatic closing circuit, and the automatic closing circuit includes relay
U1, time-delay relay S1, relay U2, time-delay relay S2, resistance R1, voltmeter V1 and voltmeter V2.
As shown in Figure 1, the contact switch of the contact switch U11 of the switch knob AK, relay U1, time-delay relay S1
The contact switch U21 of S11 and relay U2 forms series loop；
Wherein, the time-delay relay S1 is normally opened, and the coil of the time-delay relay S1 connects the distribution system
Source side；
The time-delay relay S2 is normally opened, and the coil of the time-delay relay S2 connects the load of the distribution system
Side；
The load side series connection of the contact switch S21 of the time-delay relay S2, the coil of relay U2, the distribution system
Together；
The relay U2 is normally closed；
Referring to Fig. 2, the relay U1, time-delay relay S1 and voltmeter v1 parallel connection in the present embodiment access source side,
The voltmeter V1 shows alternating current；The time-delay relay S2 and voltmeter V2 parallel connection access load side.The automatic closing electricity
It is equipped with switch KK between road and the source side of the distribution system, switch KK can be disconnected when the maintenance of transformer high and low pressure, prevented
Error action of device is made.
As shown in Figure 3 and Figure 4, after the source side is powered, the coil of the relay U1 charges and contact switch
The coil of U11 closure, the time-delay relay S1 charges and contact switch S11 is closed after setting time, the series loop
The no-voltage trip device of connection, the switch knob AK short circuit making, the breaker is powered on, and then the distribution system
It closes a floodgate, the source side and the load side connection, i.e., the described load side are powered, the coil electrification of the time-delay relay S2
And contact switch S21 is closed after setting time, the coil of the relay U2 is powered and contact switch U21 is disconnected, the string
Join circuit to disconnect.
In the present embodiment, after the time-delay relay S1 is powered, delay setting is closed between 30 seconds to 8 minutes；It is described to prolong
When relay S2 be powered after, delay setting 0.1 second to 10 seconds between be closed.
Embodiment two:
On the basis of example 1, the no-voltage trip auto recloser includes shell, and the shell is equipped with strong
Power magnet, easy for installation, directly absorption transformer-cabinet is installed in the case where not needing power failure and only needs 5 minutes, not shadow
It rings equipment to operate normally, can be installed according to field device situation any position.The external wire connecting clip of described device, convenient in case change
Aluminium row's installation.
Embodiment three:
Corresponding, a kind of no-voltage trip auto recloser combination weighs automatically including a kind of N number of above-mentioned no-voltage trip
Closing device is separately mounted to N number of transformer, and the delay of the time-delay relay S1 of N number of no-voltage trip auto recloser
Setting time mutually staggers, and the reclosing movement of N number of transformer is staggered, and effectively reduces system excitation surge current to distribution system
Equipment harm, it is ensured that system safe and reliable operation.
The distribution transformer that the present embodiment puts into cell 630KVA is used, reclosing reliable in action, when each delay
The effective reclosing of Duan Junneng, passes through measurement, it can be seen that system excitation surge current obviously becomes smaller.
Ammeter variation table and Fig. 5 when following cell does not install the application is please referred to put into about cell distribution transformer
System power changes table (no-voltage trip device exits):
It please refers to following cell and the ammeter variation table after the application and Fig. 6 is installed and put into about cell distribution transformer and be
It unites curent change table (no-voltage trip device auto recloser investment):
By comparison, it is apparent that as investment the application, and the delay setting time setting of time-delay relay S1 is not
Meanwhile, it is capable to which the excitation surge current of system is effectively reduced.
By the above-mentioned description of this invention it is found that compared to the prior art, the present invention has the advantage that
The application proposes a kind of no-voltage trip auto recloser and combinations thereof, the no-voltage trip automatic reclosing dress
Set can automatic reclosing, effectively raise person works' efficiency, prevent from failing to reach scene for a long time because of personnel closing a floodgate and make
At low-voltage customer have a power failure for a long time, meanwhile, there is delay in 30 seconds to 8 minutes to be arranged, can make more by limit for length when present apparatus reclosing
Platform transformer closes a floodgate respectively, and the excitation surge current that anti-locking system closes a floodgate is excessive, effectively reduces system excitation surge current to equipment
Harm, it is ensured that system safe and reliable operation.
It should be noted that in the present invention, the relational terms of such as " first " and " second " or the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The above is only the specific embodiment of the embodiment of the present invention, is made skilled artisans appreciate that or realizing
The present invention.Various modifications to these embodiments will be apparent to one skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein
Consistent widest scope.
It should be understood that the application is not limited to the content for being described above and being shown in the accompanying drawings, and can
To carry out various modifications and change without departing from the scope.Scope of the present application is only limited by the accompanying claims.
Claims (10)
1. a kind of no-voltage trip auto recloser is used for distribution system, connect with the breaker of distribution system, the open circuit
Device connection includes switch knob AK, which is characterized in that the no-voltage trip auto recloser includes automatic closing circuit, institute
Stating automatic closing circuit includes time-delay relay S1, relay U2 and time-delay relay S2；
The contact switch U21 formation of the switch knob AK, the contact switch S11 of time-delay relay S1 and relay U2 are connected back
Road；
The time-delay relay S1 is normally opened, and the coil of the time-delay relay S1 connects the source side of the distribution system；
The time-delay relay S2 is normally opened, and the coil of the time-delay relay S2 connects the load side of the distribution system；
The load side series connection one of the contact switch S21 of the time-delay relay S2, the coil of relay U2, the distribution system
It rises；The relay U2 is normally closed；
After the source side is powered, the coil of the time-delay relay S1 charges and contact switch S11 is closed after setting time
It closing, the no-voltage trip device of the series loop connection, the switch knob AK short circuit making, the breaker is powered on,
And then the distribution system is closed a floodgate, the source side and the load side connection, i.e., the described load side is powered, the delay relay
The coil of device S2 charges and contact switch S21 is closed after setting time, and the coil of the relay U2 is powered and contact switch
U21 is disconnected, and the series loop disconnects.
2. a kind of no-voltage trip auto recloser according to claim 1, which is characterized in that the series loop
In, resistance R1 is in series between the contact switch U21 of the contact switch S11 and relay U2 of the time-delay relay S1.
3. a kind of no-voltage trip auto recloser according to claim 1, which is characterized in that the automatic closing electricity
Road includes relay U1, and the contact switch U11 of the relay U1 is connected in the series loop.
4. a kind of no-voltage trip auto recloser according to claim 1, which is characterized in that the automatic closing electricity
Road includes relay U1 and R1；The contact switch U11 of the relay U1 is connected in the series loop；The R1 is connected on
Between the contact switch U21 of the contact switch S11 and relay U2 of the time-delay relay S1.
5. a kind of no-voltage trip auto recloser according to claim 1, which is characterized in that the time-delay relay
After S1 is powered, delay setting is closed between 30 seconds to 8 minutes.
6. a kind of no-voltage trip auto recloser according to claim 1, which is characterized in that the time-delay relay
After S2 is powered, delay setting is closed between 0.1 second to 10 seconds.
7. a kind of no-voltage trip auto recloser according to claim 1, which is characterized in that described including shell
Shell is equipped with strong magnets；The external wire connecting clip of described device.
8. a kind of no-voltage trip auto recloser according to claim 1, which is characterized in that the switch knob AK
Using electric switch-on and closing by hand mode.
9. a kind of no-voltage trip auto recloser according to claim 1, which is characterized in that the automatic closing electricity
Switch KK is equipped between road and the source side of the distribution system.
10. a kind of no-voltage trip auto recloser combination, which is characterized in that including any one of N number of claims 1 to 9
A kind of no-voltage trip auto recloser is separately mounted to N number of transformer, and N number of no-voltage trip automatic reclosing
The delay setting time of the time-delay relay S1 of device mutually staggers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180974.5A CN110021486B (en) | 2019-03-11 | 2019-03-11 | Automatic reclosing device for voltage-loss tripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180974.5A CN110021486B (en) | 2019-03-11 | 2019-03-11 | Automatic reclosing device for voltage-loss tripping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110021486A true CN110021486A (en) | 2019-07-16 |
| CN110021486B CN110021486B (en) | 2021-05-04 |
Family
ID=67189445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910180974.5A Expired - Fee Related CN110021486B (en) | 2019-03-11 | 2019-03-11 | Automatic reclosing device for voltage-loss tripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110021486B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412322A (en) * | 2019-09-10 | 2019-11-05 | 广东电网有限责任公司 | A kind of plant stand electrical energy measurement secondary voltage switching device |
| CN111048328A (en) * | 2020-01-14 | 2020-04-21 | 永康串行电子有限公司 | Air electric switch capable of automatically closing |
| TWI837814B (en) * | 2022-09-07 | 2024-04-01 | 陳錫瑜 | An automatic reclosing improve device |
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|---|---|---|---|---|
| KR20020081657A (en) * | 2001-04-20 | 2002-10-30 | 손석환 | Automatic closing circuit of CB |
| CN103683176A (en) * | 2013-12-06 | 2014-03-26 | 国家电网公司 | Automatic reclosing lock device of intelligent circuit breaker |
| CN204131081U (en) * | 2014-10-27 | 2015-01-28 | 国家电网公司 | A kind of automatic reclosing low-voltage circuit breaker |
| CN104638603A (en) * | 2015-03-26 | 2015-05-20 | 青岛飞鹏能源有限公司 | Automatic reclosing method and device for power recovery |
| CN206517031U (en) * | 2017-03-16 | 2017-09-22 | 安德利集团有限公司 | A kind of autoreclose breaker mechanism |
-
2019
- 2019-03-11 CN CN201910180974.5A patent/CN110021486B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020081657A (en) * | 2001-04-20 | 2002-10-30 | 손석환 | Automatic closing circuit of CB |
| CN103683176A (en) * | 2013-12-06 | 2014-03-26 | 国家电网公司 | Automatic reclosing lock device of intelligent circuit breaker |
| CN204131081U (en) * | 2014-10-27 | 2015-01-28 | 国家电网公司 | A kind of automatic reclosing low-voltage circuit breaker |
| CN104638603A (en) * | 2015-03-26 | 2015-05-20 | 青岛飞鹏能源有限公司 | Automatic reclosing method and device for power recovery |
| CN206517031U (en) * | 2017-03-16 | 2017-09-22 | 安德利集团有限公司 | A kind of autoreclose breaker mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412322A (en) * | 2019-09-10 | 2019-11-05 | 广东电网有限责任公司 | A kind of plant stand electrical energy measurement secondary voltage switching device |
| CN110412322B (en) * | 2019-09-10 | 2024-03-19 | 广东电网有限责任公司 | Secondary voltage switching device for station electric energy metering |
| CN111048328A (en) * | 2020-01-14 | 2020-04-21 | 永康串行电子有限公司 | Air electric switch capable of automatically closing |
| CN111048328B (en) * | 2020-01-14 | 2020-09-01 | 永康串行电子有限公司 | Air electric switch capable of automatically closing |
| TWI837814B (en) * | 2022-09-07 | 2024-04-01 | 陳錫瑜 | An automatic reclosing improve device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110021486B (en) | 2021-05-04 |
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Granted publication date: 20210504 |