CN208507515U - A kind of high-tension apparatus protection cabinet door interlock system - Google Patents
A kind of high-tension apparatus protection cabinet door interlock system Download PDFInfo
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- CN208507515U CN208507515U CN201821286106.2U CN201821286106U CN208507515U CN 208507515 U CN208507515 U CN 208507515U CN 201821286106 U CN201821286106 U CN 201821286106U CN 208507515 U CN208507515 U CN 208507515U
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- cabinet door
- breaker
- blocking
- protection cabinet
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Abstract
The utility model provides a kind of high-tension apparatus protection cabinet door interlock system, comprising: protection cabinet door control loop, shutting-brake control loop and separating brake control loop；Concatenation protection cabinet door locking relay in protection cabinet door control loop, breaker closing locking relay and earthing switch closing locking relay are concatenated in shutting-brake control loop, concatenate breaker open operation locking relay and grounding switch tripping locking relay in separating brake control loop.The utility model in protection cabinet door control loop, breaker or earthing switch switch closing and switch opening control loop by increasing locking link, ensure breaker closing in transmission process, protect cabinet door to fail to open under equipment live state, to prevent operator's mistakenly entering charged chamber room that the accident of electric shock injures and deaths occurs, simultaneously, protection cabinet door is fail to open when earthing switch is not turned off in power process, internal element device or terminal load reservoir corona discharge are prevented, extensive damage is caused to operator and equipment.
Description
Technical field
The utility model relates to electrical safety technical field more particularly to a kind of high-tension apparatus protection cabinet door interlock systems.
Background technique
In electric system power transmission and distribution and rail traffic field of power distribution, the reliable operation of mesohigh electric power control package
And safe operation, it is related to the stable of entire network system even user terminal.Electric power control package is set in research and development
The problem of each link overriding concerns such as meter, the manufacturing and operation and maintenance is exactly " five is anti-" operation, should guarantee the steady of equipment
It is fixed reliable, more to guarantee personal safety.
For satisfaction " five is anti-" functional requirement and Specification, high-voltage switch complete set of equipments is in the behaviour that closes a floodgate at present
Each links such as work, normal operation, interruption maintenance and fault trip must all carry out security function arrangement and protection design.Match in equipment
Set vacuum circuit breaker can the quick disjunction when network system or control device break down, and breaking capacity is big；To guarantee
The reliable disjunction of equipment and interruption maintenance safety, it is desirable that pile crown electrification side installs isolation switch device additional on-board the circuit breaker, and by outer
Portion's observation window obviously observes the disjunction state of disconnecting switch pile crown；Grunding switch gear device is closed in interruption maintenance, is guaranteed out
Close the timely electric discharge of equipment reliable ground and the load of energy storage terminal；The open and close of cabinet door simultaneously should be with isolating device, open circuit
The realizations such as device device and earthing switch linkage and interlocking.
But in current high-tension apparatus protection cabinet door system, it is not added in breaker or ground connection control loop related matched
Breaker or ground connection locking link are closed if original five-preventing system breaks down in cabinet door, during equipment is powered,
It is likely to occur breaker closing, ground connection does not disconnect, in the case where equipment live, the case where cabinet door is opened；And have a power failure in equipment, cabinet
During door is opened, occur in the case that earthing switch is not turned off, the case where cabinet door is switched on, the person of operator is pacified
Major hidden danger is brought entirely, massive losses may be brought to the safe operation of route and equipment.
Utility model content
In order to solve in current high-tension apparatus protection cabinet door system, correlation is not added in breaker or ground connection control loop
Matched breaker or ground connection locking link, if the failure of original five-preventing system, can bring the hidden of personal safety as well as the property safety
The problem of suffering from, the utility model provide a kind of high-tension apparatus protection cabinet door interlock system, comprising: protection cabinet door control loop,
Shutting-brake control loop and separating brake control loop；Concatenation protection cabinet door locking relay, shutting-brake control in protection cabinet door control loop
Breaker closing locking relay and earthing switch closing locking relay are concatenated in circuit, concatenate open circuit in separating brake control loop
Device separating brake locking relay and grounding switch tripping locking relay.
Preferably, protection cabinet door locking relay includes protection states of cabinet door switch and protection cabinet door blocking coil, open circuit
Device closing locking relay includes breaker closing blocking switch and breaker closing blocking coil, breaker open operation locking
Relay includes breaker open operation blocking switch and breaker open operation blocking coil, earthing switch closing locking relay packet
Earthing switch closing locking status switch and earthing switch closing locking coil are included, grounding switch tripping locking relay includes connecing
Ground switchs separating brake blocking switch and grounding switch tripping blocking coil；Grounding switch tripping blocking switch, breaker
Closing locking status switch, breaker open operation blocking switch are normally closed switch, and earthing switch closing locking status switch is
Normal open switch；Concatenated breaker closing blocking coil and grounding switch tripping blocking switch, with concatenated earthing switch
After separating brake blocking coil and breaker closing blocking switch in parallel, then with protection states of cabinet door switch series connection, constitute protection
Cabinet door pass hull closure is by electrically operated circuit；Concatenated protection cabinet door blocking coil and earthing switch closing locking status switch, string
The earthing switch closing locking coil and breaker open operation blocking of connection switch, respectively simultaneously with breaker open operation blocking coil
Connection, constitution equipment power interruption protector cabinet door opening operation circuit；Cabinet door pass hull closure is protected to be had a power failure by electrically operated circuit and equipment anti-
Protect cabinet door opening operation circuit circuit in parallel.
Preferably, this high-tension apparatus protection cabinet door interlock system further includes power supply, and power supply is DC power supply, directly
Galvanic electricity source includes L phase and N phase.
Preferably, breaker closing blocking coil, grounding switch tripping blocking coil, breaker open operation blocking coil, connect
Ground switch closing locking coil and protection cabinet door blocking coil are connected with N respectively, protection states of cabinet door switch, breaker open operation
Blocking switch and earthing switch closing locking status switch are connected with L respectively.
Preferably, this high-tension apparatus protection cabinet door interlock system further includes opening latching electromagnet, opens latching electromagnet
It connects with breaker open operation blocking coil, and opens latching electromagnet and be connected with L.
The utility model provides a kind of high-tension apparatus protection cabinet door interlock system, by protection cabinet door control loop,
Increase locking link in breaker or earthing switch switch closing and switch opening control loop, even if original five-preventing system breaks down,
It also ensures that breaker closing in transmission process, protect cabinet door to fail to open under equipment live state, to prevent operator
The accident of electric shock injures and deaths occurs for member mistakenly entering charged chamber room, meanwhile, in power process earthing switch when being not turned off protection cabinet door without
Method is opened, and is prevented internal element device or terminal load reservoir corona discharge, is caused extensive damage to operator and equipment.
Detailed description of the invention
Fig. 1 is to be illustrated according to the control of the high-tension apparatus protection cabinet door interlock system of one preferred embodiment of the utility model
Figure.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
The utility model provides a kind of high-tension apparatus protection cabinet door interlock system, comprising: protection cabinet door control loop is closed
Lock control loop and separating brake control loop；Concatenation protection cabinet door locking relay, shutting-brake control return in protection cabinet door control loop
Breaker closing locking relay and earthing switch closing locking relay are concatenated in road, concatenate breaker in separating brake control loop
Separating brake locking relay and grounding switch tripping locking relay.
Specifically, release unit increases breaker closing locking relay, contact string on the basis of original control
Former shutting-brake control loop is accessed, breaker open operation locking relay is increased, contact is concatenated into former separating brake control loop；Ground connection is opened
It closes and increases earthing switch closing locking relay on the basis of original control, contact is concatenated into former shutting-brake control loop, is increased
Add grounding switch tripping locking relay, contact is concatenated into former separating brake control loop.
Breaker configures breaker closing locking relay and breaker open operation locking relay, seals in and connects in control loop
The related status information of ground switch and cabinet door, just can be carried out breaking-closing operating when meeting operating condition.
Earthing switch configures earthing switch closing locking relay and grounding switch tripping locking relay, in control loop
It seals in release unit and protects the related status information of cabinet door, just can be carried out breaking-closing operating when meeting operating condition.
Protection cabinet door switch, earthing switch, killer switch participate in the control of release unit divide-shut brake, Grunding switch gear device
Divide-shut brake control and protection cabinet door lock-in control in, thus reach protection cabinet door security protection, ensure personal safety
Purpose.
Fig. 1 is to be illustrated according to the control of the high-tension apparatus protection cabinet door interlock system of one preferred embodiment of the utility model
Figure, as shown in Figure 1, protection states of cabinet door switch is GM, grounding switch tripping blocking switch is JD1, and breaker closing closes
Locking wire circle is QHF, and breaker closing blocking switch is QF1, and grounding switch tripping blocking coil is JDF, breaker open operation
Blocking coil is QFF, and breaker open operation blocking switch is QF2, and earthing switch closing locking coil is JDH, earthing switch
Closing locking status switch is JD2, and protection cabinet door blocking coil is GMB.
Specifically, protection cabinet door locking relay includes protecting states of cabinet door switch GM and protection cabinet door blocking coil GMB,
Breaker closing locking relay includes breaker closing blocking switch QF1 and breaker closing blocking coil QHF, open circuit
Device separating brake locking relay includes breaker open operation blocking switch QF2 and breaker open operation blocking coil QFF, earthing switch
Closing locking relay includes earthing switch closing locking status switch JD2 and earthing switch closing locking coil JDH, and ground connection is opened
Closing separating brake locking relay includes grounding switch tripping blocking switch JD1 and grounding switch tripping blocking coil JDF.
Wherein, grounding switch tripping blocking switch JD1, breaker closing blocking switch QF1, breaker open operation
Blocking switch QF2 is normally closed switch, and earthing switch closing locking status switch JD2 is normal open switch.
In the utility model embodiment, this high-tension apparatus protection cabinet door interlock system includes following connection relationships:
Concatenated breaker closing blocking coil QHF and grounding switch tripping blocking switch JD1, with concatenated ground connection
Switch separating brake blocking coil JDF and breaker closing blocking switch QF1 it is in parallel after, then go here and there with protection states of cabinet door switch GM
Connection constitutes protection cabinet door pass hull closure by electrically operated circuit；Concatenated protection cabinet door blocking coil GMB and earthing switch combined floodgate close
Lock status switch JD2, concatenated earthing switch closing locking coil JDH and breaker open operation blocking switch QF2, respectively with
Breaker open operation blocking coil QFF is in parallel, constitution equipment power interruption protector cabinet door opening operation circuit.Protect cabinet door pass hull closure by
Electrically operated circuit and equipment power interruption protector cabinet door opening operation circuit circuit in parallel.
Further, this high-tension apparatus protection cabinet door interlock system further includes power supply, and power supply is DC power supply,
DC power supply includes L phase and N phase.
Based on the above embodiment, breaker closing blocking coil QHF, grounding switch tripping blocking coil JDF, breaker point
Lock blocking coil QFF, earthing switch closing locking coil JDH and protection cabinet door blocking coil GMB are connected with N respectively, protect
States of cabinet door switch GM, breaker open operation blocking switch QF2 and earthing switch closing locking status switch JD2 respectively with L
It is connected.
Based on the above embodiment, this high-tension apparatus protection cabinet door interlock system further includes opening latching electromagnet, and unlatching is closed
Electromagnet and breaker open operation blocking coil QFF series connection are locked, and opens latching electromagnet and is connected with L.
Specifically, latching electromagnet is opened in configuration in protection cabinet door, is added in the control loop for opening latching electromagnet
The status information for entering protection cabinet door switch, breaker and earthing switch, in the case where meeting correlated condition, opening protection function electromagnet ability
Must be electrically operated, protection cabinet door could open.
Based on the above embodiment, as shown in Figure 1, protecting the powered step of equipment after cabinet door closing are as follows: close protection cabinet
Door, protection states of cabinet door switch GM closing, grounding switch tripping blocking coil JDF obtains electric, and grounding switch tripping blocking is opened
JD1 is closed to disconnect；Breaker closing blocking coil QFH power loss, breaker closing blocking switch QF1 close a floodgate；Protection cabinet
Door state switch GM locking, protection cabinet door are fail to open.
Specifically, protection cabinet door is closed, and for equipment by electric process, release unit is in gate-dividing state, protection cabinet gate-shaped
State switch GM is closed, and earthing or grounding means separating brake blocking coil JDF is opened, earthing or grounding means separating brake；Earthing or grounding means separating brake, release unit
Closing locking coil QFH is opened, and release unit closes a floodgate；Cabinet door locking relay GMB is protected to close, protection cabinet door can not be opened
It opens.
Based on the above embodiment, as shown in Figure 1, the step of protection cabinet door after equipment power failure is opened are as follows: breaker open operation
Blocking coil QFF power loss, breaker open operation blocking switch QF2 separating brake；Earthing switch closing locking coil JDH obtains electric, connects
Ground switchs closing locking status switch JD2 and closes a floodgate；Cabinet door blocking coil GMB power loss is protected, states of cabinet door switch GM separating brake is protected,
Cabinet door is protected to open.
Specifically, release unit separating brake blocking coil QFF is opened, release unit separating brake；Release unit separating brake, connects
Ground switchs closing locking coil JDH and opens, and earthing or grounding means closes a floodgate；Earthing or grounding means closes a floodgate, and protection cabinet door locking relay GMB is beaten
It opens, protection cabinet door can open.
The utility model provides a kind of high-tension apparatus protection cabinet door interlock system, by protection cabinet door control loop,
Increase locking link in breaker or earthing switch switch closing and switch opening control loop, even if original five-preventing system breaks down,
It also ensures that breaker closing in transmission process, protect cabinet door to fail to open under equipment live state, to prevent operator
The accident of electric shock injures and deaths occurs for member mistakenly entering charged chamber room, meanwhile, in power process earthing switch when being not turned off protection cabinet door without
Method is opened, and is prevented internal element device or terminal load reservoir corona discharge, is caused extensive damage to operator and equipment.
Finally, the embodiments of the present invention are only preferable embodiment, it is not intended to limit the guarantor of the utility model
Protect range.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (5)
1. a kind of high-tension apparatus protection cabinet door interlock system characterized by comprising protection cabinet door control loop, shutting-brake control
Circuit and separating brake control loop；Concatenation protection cabinet door locking relay, the shutting-brake control in the protection cabinet door control loop
Breaker closing locking relay and earthing switch closing locking relay are concatenated in circuit, are concatenated in the separating brake control loop
Breaker open operation locking relay and grounding switch tripping locking relay.
2. a kind of high-tension apparatus protection cabinet door interlock system according to claim 1, which is characterized in that the protection cabinet door
Locking relay includes protection states of cabinet door switch and protection cabinet door blocking coil, and the breaker closing locking relay includes
Breaker closing blocking switch and breaker closing blocking coil, the breaker open operation locking relay includes breaker
Separating brake blocking switch and breaker open operation blocking coil, the earthing switch closing locking relay include that earthing switch closes
Lock blocking switch and earthing switch closing locking coil, the grounding switch tripping locking relay include earthing switch point
Lock blocking switch and grounding switch tripping blocking coil；
The grounding switch tripping blocking switch, breaker closing blocking switch, breaker open operation blocking are opened
Closing is normally closed switch, and the earthing switch closing locking status switch is normal open switch；
The concatenated breaker closing blocking coil and grounding switch tripping blocking switch, described connect with concatenated
After ground switchs separating brake blocking coil and the breaker closing blocking switch in parallel, then with protection states of cabinet door switch
Series connection constitutes protection cabinet door pass hull closure by electrically operated circuit；
Concatenated protection cabinet door blocking coil and earthing switch closing locking status switch, concatenated earthing switch closing locking line
Circle and breaker open operation blocking switch, in parallel with the breaker open operation blocking coil respectively, constitution equipment power interruption protector
Cabinet door opening operation circuit；
The protection cabinet door pass hull closure by electrically operated circuit and the equipment power interruption protector cabinet door opening operation circuit circuit simultaneously
Connection.
3. a kind of high-tension apparatus protection cabinet door interlock system according to claim 2, which is characterized in that further include power supply electricity
Source, the power supply are DC power supply, and the DC power supply includes L phase and N phase.
4. a kind of high-tension apparatus protection cabinet door interlock system according to claim 3, which is characterized in that the breaker closes
Lock blocking coil, grounding switch tripping blocking coil, breaker open operation blocking coil, earthing switch closing locking coil and protection
Cabinet door blocking coil is connected with the N respectively, the protection states of cabinet door switch, breaker open operation blocking switch
It is connected respectively with the L with the earthing switch closing locking status switch.
5. a kind of high-tension apparatus protection cabinet door interlock system according to claim 3, which is characterized in that further include opening to close
Lock electromagnet, the unlatching latching electromagnet and breaker open operation blocking coil series connection, and the unlatching latching electromagnet
It is connected with the L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821286106.2U CN208507515U (en) | 2018-08-09 | 2018-08-09 | A kind of high-tension apparatus protection cabinet door interlock system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821286106.2U CN208507515U (en) | 2018-08-09 | 2018-08-09 | A kind of high-tension apparatus protection cabinet door interlock system |
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| Publication Number | Publication Date |
|---|---|
| CN208507515U true CN208507515U (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821286106.2U Active CN208507515U (en) | 2018-08-09 | 2018-08-09 | A kind of high-tension apparatus protection cabinet door interlock system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854729A (en) * | 2019-12-10 | 2020-02-28 | 国网山东省电力公司东营供电公司 | Switch cabinet bus bin anti-false-opening and closing lock device |
| CN111030056A (en) * | 2019-12-13 | 2020-04-17 | 张家港宏昌钢板有限公司 | Interlocking practice control method for preventing misoperation on two sides of circuit |
-
2018
- 2018-08-09 CN CN201821286106.2U patent/CN208507515U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854729A (en) * | 2019-12-10 | 2020-02-28 | 国网山东省电力公司东营供电公司 | Switch cabinet bus bin anti-false-opening and closing lock device |
| CN111030056A (en) * | 2019-12-13 | 2020-04-17 | 张家港宏昌钢板有限公司 | Interlocking practice control method for preventing misoperation on two sides of circuit |
| CN111030056B (en) * | 2019-12-13 | 2021-10-08 | 张家港宏昌钢板有限公司 | Interlocking practice control method for preventing misoperation on two sides of circuit |
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