CN110534368A - With the interlock circuit of long distance safety interlock function between a kind of breaker for multiple power supplies - Google Patents
With the interlock circuit of long distance safety interlock function between a kind of breaker for multiple power supplies Download PDFInfo
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- CN110534368A CN110534368A CN201910840090.8A CN201910840090A CN110534368A CN 110534368 A CN110534368 A CN 110534368A CN 201910840090 A CN201910840090 A CN 201910840090A CN 110534368 A CN110534368 A CN 110534368A
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- breaker
- power supply
- auxiliary switch
- releasing equipment
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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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- 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
- H02H7/22—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 distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—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 distribution gear, e.g. bus-bar systems; for switching devices for switches
-
- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H2009/265—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of more than two switches
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- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses the interlock circuit between a kind of breaker for multiple power supplies, including main circuit and secondary circuit, main circuit is loaded all the way by duplex feeding and is constituted；Secondary circuit includes secondary power supply L1, N, depends on the first device for under-voltage releasing equipment and the first auxiliary switch on the first power circuit breaker；And depend on the second device for under-voltage releasing equipment and the second auxiliary switch on second source breaker；The L1 connection of the input terminal and secondary power supply of first device for under-voltage releasing equipment, its output end is connect with the second auxiliary switch, the L1 connection of the input terminal and secondary power supply of second device for under-voltage releasing equipment, its output end is connect with the first auxiliary switch, and the first auxiliary switch and the second auxiliary switch are connect with the N of secondary power supply.Using circuit of the present invention, since connect each power circuit breaker is secondary circuit conducting wire, can not be limited by distance, each function element scientific arrangement is reasonable, can be good at realizing the remote interlocking between each power circuit breaker, and it is safe and reliable the features such as.
Description
Technical field
The present invention relates to electric apparatus and power distribution protection technical fields, specifically a kind of disconnected for multiple power supplies
With the interlock circuit of long distance safety interlock function between the device of road.
Background technique
With the progress of the Development Technology of society, multiple power supplies load all the way, the load of multiple power supplies two-way, multiple power supplies ring
Mutually a variety of power supply scenes such as standby are generally existing for net, and the short-circuit risks of multichannel power parallel are also very big.To ensure its operation
Safety, prevents power supply short circuit shape condition from occurring, and Electrical Appliances Designing person devise multiple tracks safety curtain in systems, comprising: controller
The logic of software ensures that control loop electric interlock ensures, also prevents the mechanical interlocking mode of manual maloperation.Due to machinery
Interlock method is usually limited by space, if two power cabinets are separated by more than 5 meters, is just almost difficult to realize.And actual life
In, two power cabinets are very universal at a distance of 10 meters or more of application scenarios, this just gives how to be automatically prevented from manual maloperation and gone out
Problem.For power stage breaker, since power stage breaker is to provide the level ports of power supply, so-called manual maloperation,
Refer to breaker should not closing operation shelves mouth, switch knob by artificial malfunction, as a result cause combined floodgate short circuit.It solves
The method of this problem, first is that making the breaker that should not be closed a floodgate can not closing by hand by the mechanical interlocking between power circuit breaker；
Second is that installing a guard lock additional on breaker manual operation button panel, artificial maloperation is prevented.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to background technique, providing one kind can be simultaneously to more
Road power supply carries out protecting mutual interlock circuit, prevents manual maloperation, specifically a kind of so as to improve its security performance
For having the interlock circuit of long distance safety interlock function between multiple power supplies breaker.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows: one kind is between multiple power supplies breaker
Interlock circuit with long distance safety interlock function, the interlock circuit include main circuit and secondary circuit, the main circuit by
Duplex feeding loads composition all the way, wherein include a power circuit breaker in the duplex feeding circuit, respectively first
Power circuit breaker and second source breaker；The secondary circuit includes secondary power supply L1, N, depends on the first electric power disconnection
The first device for under-voltage releasing equipment on device depends on the first auxiliary switch on the first power circuit breaker；And depend on second source
The second device for under-voltage releasing equipment on breaker depends on the second auxiliary switch on second source breaker；Described first is under-voltage de-
The L1 connection of the input terminal and secondary power supply of device is detained, output end connect with the normally closed contact in the second auxiliary switch, and described the
The L1 connection of the input terminal and secondary power supply of two device for under-voltage releasing equipment, the normally closed contact in output end and the first auxiliary switch connect
It connects, the other end of first auxiliary switch and the second auxiliary switch normally closed contact is connect with the N of secondary power supply.
Further, mutual with long distance safety interlock function between a kind of breaker for multiple power supplies of the present invention
Lock circuit, wherein first power circuit breaker, the first device for under-voltage releasing equipment and the first auxiliary switch composition power supply I, described second
Power circuit breaker, the second device for under-voltage releasing equipment and the second auxiliary switch constitute power supply II, constitute between the power supply I and power supply II mutual
Lock circuit；When the first power circuit breaker and second source breaker are in gate-dividing state, first device for under-voltage releasing equipment and
Second device for under-voltage releasing equipment is connected with secondary power supply, and at this moment the first power circuit breaker and second source breaker can close a floodgate；
And after the first power circuit breaker closes a floodgate, the first auxiliary switch shuts off the second device for under-voltage releasing equipment circuit, makes second under-voltage de-
Device power loss is detained, second source breaker is caused to be in gate-dividing state；Or after second source breaker closing, the second auxiliary
Switch shuts off the first device for under-voltage releasing equipment circuit, makes the first device for under-voltage releasing equipment power loss, and the first power circuit breaker is caused to be in point
Lock state, the short-circuit risks between the power supply that may cause so as to avoid manual maloperation power circuit breaker, it is ensured that duplex feeding
The power supply safety loaded all the way.
Further, mutual with long distance safety interlock function between a kind of breaker for multiple power supplies of the present invention
Lock circuit, wherein the interlock circuit includes main circuit and secondary circuit, the main circuit is powered to load all the way by three tunnels and be constituted,
It wherein include a power circuit breaker in the power supply circuit of three road, respectively the first power circuit breaker, second source are disconnected
Road device and third power circuit breaker；The secondary circuit includes secondary power supply L1, N, is depended on the first power circuit breaker
First device for under-voltage releasing equipment depends on the first auxiliary switch on the first power circuit breaker, depends on second source breaker
Second device for under-voltage releasing equipment depends on the second auxiliary switch on second source breaker, and depends on third power circuit breaker
On third device for under-voltage releasing equipment, depend on the third auxiliary switch on third power circuit breaker；First device for under-voltage releasing equipment
The L1 of input terminal and secondary power supply connection, output end are connect with the normally closed contact that the first pole of the second auxiliary switch switchs, institute
State normally closed the connecing of the other end of the first pole switch normally closed contact of the second auxiliary switch and the first pole switch of third auxiliary switch
Point connection, the N connection of the other end and secondary power supply of the first pole switch normally closed contact of the third auxiliary switch；Described second
Second pole of the L1 connection of the input terminal and secondary power supply of device for under-voltage releasing equipment, output end and third auxiliary switch switchs normally closed
It opens first pole of contact connection, the other end and the first auxiliary switch of the second pole switch normally closed contact of the third auxiliary switch
The normally closed contact of pass connects, and the other end of the first pole switch normally closed contact and the N of secondary power supply of first auxiliary switch connect
It connects；The L1 connection of the input terminal and secondary power supply of the third device for under-voltage releasing equipment, the second of output end and the second auxiliary switch
The other end of the normally closed contact connection of pole switch, the second pole switch normally closed contact of second auxiliary switch is opened with the first auxiliary
The normally closed contact connection of the second pole switch closed, the other end and two of the second pole switch normally closed contact of first auxiliary switch
The N connection of secondary source.
Further, mutual with long distance safety interlock function between a kind of breaker for multiple power supplies of the present invention
Lock circuit, wherein first power circuit breaker, the first device for under-voltage releasing equipment and the first auxiliary switch composition power supply I, described second
Power circuit breaker, the second device for under-voltage releasing equipment and the second auxiliary switch constitute power supply II, and the third power circuit breaker, third is under-voltage
Buckle releaser and third auxiliary switch constitute power supply III, constitute interlock circuit between the power supply I, power supply II and power supply III；When
When one power circuit breaker, second source breaker and third power circuit breaker are in gate-dividing state, first undervoltage tripping
Device, the second device for under-voltage releasing equipment and third device for under-voltage releasing equipment are connected with secondary power supply, at this moment the first power circuit breaker, second source
Breaker and third power circuit breaker can close a floodgate；And after the first power circuit breaker closes a floodgate, the first auxiliary switch will be cut
Disconnected second device for under-voltage releasing equipment and third device for under-voltage releasing equipment circuit, make the second device for under-voltage releasing equipment and third device for under-voltage releasing equipment power loss, cause
Second source breaker and third power circuit breaker is set to be in gate-dividing state；Or after second source breaker closing, the
Two auxiliary switches shut off the first device for under-voltage releasing equipment and third device for under-voltage releasing equipment circuit, owe the first device for under-voltage releasing equipment and third
Buckle releaser power loss is pressed, the first power circuit breaker and third power circuit breaker is caused to be in gate-dividing state；Or when third power supply is disconnected
After road device closes a floodgate, third auxiliary switch shuts off the first device for under-voltage releasing equipment and the second device for under-voltage releasing equipment circuit, makes first to owe
Buckle releaser and the second device for under-voltage releasing equipment power loss are pressed, the first power circuit breaker and second source breaker is caused to be in gate-dividing state,
Short-circuit risks between the power supply that may cause so as to avoid manual maloperation power circuit breaker, it is ensured that the power supply of three tunnels is born all the way
The power supply safety of load.
Further, mutual with long distance safety interlock function between a kind of breaker for multiple power supplies of the present invention
Lock circuit, wherein the interlock circuit includes main circuit and secondary circuit, the main circuit is female by duplex feeding two-way load one
Connection is constituted, wherein including a power circuit breaker, respectively the first power supply in the duplex feeding circuit and mother circuit
Breaker, second source breaker and mother power circuit breaker；The secondary circuit includes secondary power supply L1, N, depends on
The first device for under-voltage releasing equipment on one power circuit breaker depends on the first auxiliary switch on the first power circuit breaker；And it depends on
In the second device for under-voltage releasing equipment on second source breaker, the second auxiliary switch on second source breaker is depended on；And
The mother device for under-voltage releasing equipment on mother power circuit breaker is depended on, the mother auxiliary switch on mother power circuit breaker is depended on；
The L1 connection of the input terminal and secondary power supply of first device for under-voltage releasing equipment, the first pole of output end and mother auxiliary switch is opened
The normally closed contact connection of first pole of the normally closed contact of pass and the second auxiliary switch switch, the first pole of the mother auxiliary switch
Switch normally closed contact the other end and the second auxiliary switch the first pole switch normally closed contact the other end with the N of secondary power supply
Connection；The of the L1 connection of the input terminal and secondary power supply of the mother device for under-voltage releasing equipment, output end and the first auxiliary switch
One pole switchs normally closed contact and the second pole switch normally closed contact of the second auxiliary switch connects, and the first of first auxiliary switch
Pole switchs the other end of the other end of normally closed contact and the second pole switch normally closed contact of the second auxiliary switch and secondary power supply
N connection；The L1 connection of the input terminal and secondary power supply of second device for under-voltage releasing equipment, output end and the first auxiliary switch
The normally closed contact of second pole switch is connected with the normally closed contact that the second pole of mother auxiliary switch switchs, first auxiliary switch
The second pole switch normally closed contact the other end and mother auxiliary switch the second pole switch normally closed contact the other end with two
The N connection of secondary source.
Further, mutual with long distance safety interlock function between a kind of breaker for multiple power supplies of the present invention
Lock circuit, wherein first power circuit breaker, the first device for under-voltage releasing equipment and the first auxiliary switch composition power supply I, described second
Power circuit breaker, the second device for under-voltage releasing equipment and the second auxiliary switch constitute power supply II, the busbar breaker, mother undervoltage tripping
Device and mother auxiliary switch constitute mother power supply, pass through and mother electric power generating composition interlock circuit between the power supply I and power supply II；
When the first power circuit breaker, second source breaker, mother power circuit breaker are in gate-dividing state, described first is under-voltage de-
It detains device, the second device for under-voltage releasing equipment, mother device for under-voltage releasing equipment to connect with secondary power supply, at this moment the first power circuit breaker, the second electricity
Source breaker and mother power circuit breaker can close a floodgate；And after the first power circuit breaker closes a floodgate, the first auxiliary switch only can
A branch for cutting off the second device for under-voltage releasing equipment and mother device for under-voltage releasing equipment, can not make the second device for under-voltage releasing equipment and mother under-voltage
Buckle releaser power loss can close a floodgate as mother power circuit breaker and second source breaker；If closed in the first power circuit breaker
After lock, mother power circuit breaker also closes a floodgate, then mother auxiliary switch shuts off a branch and for the first device for under-voltage releasing equipment
Another branch of two device for under-voltage releasing equipment makes the second device for under-voltage releasing equipment power loss, second source breaker is caused to be in gate-dividing state,
It constitutes through the first power circuit breaker to two loads while scene of powering；If after the first power circuit breaker combined floodgate, second
Power circuit breaker also closes a floodgate, then the second auxiliary switch shuts off a branch and mother undervoltage tripping for the first device for under-voltage releasing equipment
Another branch of device makes mother device for under-voltage releasing equipment power loss, and mother power circuit breaker is caused to be in gate-dividing state, constitutes by the
One power circuit breaker is to the first load, and second source breaker is to the power supply scene respectively of the second load；The wherein power supply I
It is arranged with power supply II by symmetry status of mother power supply, then vice versa for the interlocked relationship of above scenario.To avoid manually accidentally
Short-circuit risks between the power supply that operation power breaker may cause, it is ensured that duplex feeding two-way loads the power supply peace of a mother
Entirely.
Using interlock circuit of the present invention, compared with prior art, the beneficial effect is that: due in each circuit
It is designed with device for under-voltage releasing equipment；By the secondary power supply line of the device for under-voltage releasing equipment on each power circuit breaker, to other corresponding power supplys
The normally opened or normally closed contact connection of auxiliary switch on breaker, to pass through the opening and closing state of other power circuit breakers, to control
Whether the power circuit breaker being capable of opening and closing state.Therefore, using technical solution of the present invention, due to connecting each electric power disconnection
Device is secondary circuit conducting wire, can not be limited by distance, and each function element scientific arrangement is reasonable, can be good at realizing each electricity
Remote interlocking between the breaker of source, and it is safe and reliable the features such as.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the electrical block diagram of the embodiment of the present invention one；
Fig. 2 is the electrical block diagram of the embodiment of the present invention two；
Fig. 3 is the electrical block diagram of the embodiment of the present invention three.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made with reference to the accompanying drawing
It is described in further detail.
Embodiment 1
The performance of the main circuit and secondary circuit that load all the way for duplex feeding, i.e., two switches only allow a combined floodgate
Alternative technical solution, when two power circuit breakers are all in separating brake, the two of the device for under-voltage releasing equipment of every power circuit breaker
Secondary source is turned on.At this point, every power circuit breaker can close a floodgate, and after wherein a power circuit breaker closes a floodgate, it is auxiliary
Switch is helped to shut off the device for under-voltage releasing equipment circuit of another power circuit breaker, device for under-voltage releasing equipment power loss, then iron core automatic spring,
Cause power circuit breaker that can not close a floodgate.Wherein the functional characteristic of the device for under-voltage releasing equipment is, and in decompression, mandril meeting
Automatic spring and the separating brake semiaxis for pushing down mechanism, to make switch knob that can not close a floodgate.Because of this characteristic, even secondary returning
Loss of power failure occurs for road, and consequence is that each power circuit breaker is turned off, and short circuit condition between power supply never occurs, specifically
Performance is as follows:
As shown in Figure 1, with the interlocking of long distance safety interlock function between a kind of breaker for multiple power supplies of the present invention
Circuit, including main circuit and secondary circuit, the main circuit are loaded all the way by duplex feeding and are constituted, wherein the duplex feeding is electric
Lu Zhongjun includes a power circuit breaker, respectively the first power circuit breaker IB1 and second source breaker IB2；Described two
Secondary circuit includes secondary power supply L1, N, depends on the first device for under-voltage releasing equipment UR1 on the first power circuit breaker IB1, depends on
The first auxiliary switch SA1 on first power circuit breaker IB1；And it depends on second under-voltage on second source breaker IB2
Buckle releaser UR2 depends on the second auxiliary switch SA2 on second source breaker IB2；The first device for under-voltage releasing equipment UR1's
The L1 of input terminal and secondary power supply connection, output end are connect with the normally closed contact in the second auxiliary switch SA2, and described second owes
The L1 connection of the input terminal and secondary power supply of buckle releaser UR2 is pressed, the normally closed contact in output end and the first auxiliary switch SA1 connects
It connects, the other end of the first auxiliary switch SA1 and the second auxiliary switch SA2 normally closed contact is connect with the N of secondary power supply.
Wherein the first power circuit breaker IB1, the first device for under-voltage releasing equipment UR1 and the first auxiliary switch SA1 constitute power supply
I, the second source breaker IB2, the second device for under-voltage releasing equipment UR2 and the second auxiliary switch SA2 constitute power supply II, the power supply
Interlock circuit is constituted between I and power supply II；When the first power circuit breaker IB1 and second source breaker IB2 are in separating brake shape
When state, the first device for under-voltage releasing equipment UR1 and the second device for under-voltage releasing equipment UR2 are connected with secondary power supply, and at this moment the first power supply is disconnected
Road device IB1 and second source breaker IB2 can close a floodgate；And after the first power circuit breaker IB1 closes a floodgate, the first auxiliary switch
SA1 shuts off the second device for under-voltage releasing equipment UR2 circuit, makes the second device for under-voltage releasing equipment UR2 power loss, causes second source breaker
IB2 is in gate-dividing state；Or after second source breaker IB2 closes a floodgate, the second auxiliary switch SA2 shuts off first and owes
Buckle releaser UR1 circuit is pressed, makes the first device for under-voltage releasing equipment UR1 power loss, the first power circuit breaker IB1 is caused to be in gate-dividing state.From
And avoid the short-circuit risks between the power supply that manual maloperation power circuit breaker may cause, it is ensured that duplex feeding loaded all the way
Power supply safety.
Embodiment 2
For the performance of main circuit and secondary circuit that the power supply of three tunnels loads all the way, i.e., three switches only allow a combined floodgate
One-out-three technical solution, the specific implementation is as follows:
As shown in Fig. 2, with the interlocking of long distance safety interlock function between a kind of breaker for multiple power supplies of the present invention
Circuit, including main circuit and secondary circuit, the main circuit are powered to load all the way by three tunnels and be constituted, wherein three tunnel power supply electricity
Lu Zhongjun includes a power circuit breaker, respectively the first power circuit breaker IB1, second source breaker IB2 and third electricity
Source breaker IB3；The secondary circuit includes secondary power supply L1, N, and first depended on the first power circuit breaker IB1 is owed
Buckle releaser UR1 is pressed, the first auxiliary switch SA1 on the first power circuit breaker IB1 is depended on, depends on second source breaker
The second device for under-voltage releasing equipment UR2 on IB2 depends on the second auxiliary switch SA2 on second source breaker IB2, and depends on
In the third device for under-voltage releasing equipment UR3 on third power circuit breaker IB3, the third auxiliary on third power circuit breaker IB3 is depended on
Switch SA3；The L1 connection of the input terminal and secondary power supply of the first device for under-voltage releasing equipment UR1, output end are opened with the second auxiliary
The normally closed contact connection of the first pole switch of SA2 is closed, the first pole of the second auxiliary switch SA2 switchs the another of normally closed contact
The normally closed contact switched with the first pole of third auxiliary switch SB3 is held to connect, the first pole switch of the third auxiliary switch SB3
The N connection of the other end and secondary power supply of normally closed contact；The input terminal of the second device for under-voltage releasing equipment UR2 and the L1 of secondary power supply
Connection, output end are connect with the normally closed contact that the second pole of third auxiliary switch SB3 switchs, the third auxiliary switch SB3
The normally closed contact of the first pole switch of the other end and the first auxiliary switch SB1 of the second pole switch normally closed contact connect, it is described
The N connection of the other end and secondary power supply of the first pole switch normally closed contact of first auxiliary switch SB1；The third undervoltage tripping
Normally closed the connecing of the second pole switch of the L1 connection of the input terminal and secondary power supply of device UR3, output end and the second auxiliary switch SB2
Point connection, the second auxiliary switch SB2 the second pole switch normally closed contact the other end and the first auxiliary switch SB1 second
The normally closed contact connection of pole switch, the other end and secondary electricity of the second pole switch normally closed contact of the first auxiliary switch SB1
The N connection in source.
Wherein the first power circuit breaker IB1, the first device for under-voltage releasing equipment UR1 and the first auxiliary switch SA1 constitute power supply
I, the second source breaker IB2, the second device for under-voltage releasing equipment UR2 and the second auxiliary switch SA1 constitute power supply II, the third
Power circuit breaker IB3, third device for under-voltage releasing equipment UR3 and third auxiliary switch SA3 constitute power supply III, the power supply I, II and of power supply
Interlock circuit is constituted between power supply III；When the first power circuit breaker IB1, second source breaker IB2 and third power circuit breaker
When IB3 is in gate-dividing state, the first device for under-voltage releasing equipment UR1, the second device for under-voltage releasing equipment UR2 and third device for under-voltage releasing equipment
UR3 is connected with secondary power supply, at this moment the first power circuit breaker IB1, second source breaker IB2 and third power circuit breaker
IB3 can close a floodgate；And after the first power circuit breaker IB1 closes a floodgate, the first auxiliary switch SB1 shuts off the second undervoltage tripping
Device UR2 and third device for under-voltage releasing equipment UR3 circuit, make the second device for under-voltage releasing equipment UR2 and third device for under-voltage releasing equipment UR3 power loss, cause
Second source breaker IB2 and third power circuit breaker IB3 are in gate-dividing state；Or when second source breaker IB2 closes a floodgate
Afterwards, the second auxiliary switch SA2 shuts off the first device for under-voltage releasing equipment SA1 and third device for under-voltage releasing equipment SA3 circuit, makes first to owe
Buckle releaser SA1 and third device for under-voltage releasing equipment SA3 power loss are pressed, is caused at the first power circuit breaker IB1 and third power circuit breaker IB3
In gate-dividing state；Or after third power circuit breaker IB3 closes a floodgate, it is under-voltage de- that third auxiliary switch SA3 shuts off first
Device UR1 and the second device for under-voltage releasing equipment UR2 circuit are detained, the first device for under-voltage releasing equipment UR1 and the second device for under-voltage releasing equipment UR2 power loss are made, is caused
The first power circuit breaker IB1 and second source breaker IB2 is set to be in gate-dividing state.Cause the first power circuit breaker and the second electricity
Source breaker is in gate-dividing state, the short-circuit wind between the power supply that may cause so as to avoid manual maloperation power circuit breaker
Danger, it is ensured that the power supply safety that the power supply of three tunnels loads all the way.
Embodiment 3
The main circuit of a mother and the performance of secondary circuit are loaded for two tunnel of two-way power supply, i.e., three switches only allow two
What platform closed a floodgate simultaneously three selects two schemes, and the specific implementation is as follows:
As shown in figure 3, with the interlocking of long distance safety interlock function between a kind of breaker for multiple power supplies of the present invention
Circuit, including main circuit and secondary circuit, the main circuit loads a mother by duplex feeding two-way and constitutes, wherein the two-way
It include a power circuit breaker in power supply circuit and mother circuit, respectively the first power circuit breaker IB1, second source are disconnected
Road device IB2 and mother power circuit breaker IB3；The secondary circuit includes secondary power supply L1, N, depends on the first electric power disconnection
The first device for under-voltage releasing equipment UR1 on device IB1 depends on the first auxiliary switch SA1 on the first power circuit breaker IB1；And according to
The second device for under-voltage releasing equipment UR2 on second source breaker IB2 is invested, is depended on second auxiliary on second source breaker IB2
Help switch SA2；And mother device for under-voltage releasing equipment UR3 on mother power circuit breaker IB3 is depended on, depend on mother electric power disconnection
Mother auxiliary switch SA3 on device IB3；The L1 connection of the input terminal and secondary power supply of the first device for under-voltage releasing equipment UR1, it is defeated
First pole of normally closed contact and the second auxiliary switch SA2 that the first pole of outlet and mother auxiliary switch SA3 switch switchs normal
Close contact connection, the other end and the second auxiliary switch SA2 of the first pole switch normally closed contact of the mother auxiliary switch SA3
The other end of first pole switch normally closed contact is connect with the N of secondary power supply；The input terminal of the mother device for under-voltage releasing equipment UR3 with
The first pole switch normally closed contact of the L1 connection of secondary power supply, output end and the first auxiliary switch SA1 and the second auxiliary switch
SA2 the second pole switch normally closed contact connection, the first auxiliary switch SA1 the first pole switch normally closed contact the other end and
The other end of the second pole switch normally closed contact of second auxiliary switch SA2 is connect with the N of secondary power supply；Described second is under-voltage de-
The second pole of the L1 connection of the input terminal and secondary power supply of button device UR2, output end and the first auxiliary switch SA1 switch normally closed
Contact is connected with the normally closed contact that the second pole of mother auxiliary switch SA3 switchs, and the second pole of the first auxiliary switch SA1 is opened
Close normally closed contact the other end and mother auxiliary switch SA3 the second pole switch normally closed contact the other end with secondary power supply
N connection.
Wherein the first power circuit breaker IB1, the first device for under-voltage releasing equipment UR1 and the first auxiliary switch SA1 constitute power supply
I, the second source breaker IB2, the second device for under-voltage releasing equipment UR2 and the second auxiliary switch SA1 constitute power supply II, the mother
Breaker IB3, mother device for under-voltage releasing equipment UR3 and mother auxiliary switch SA3 constitute mother power supply, the power supply I and power supply II it
Between by and mother electric power generating composition interlock circuit；When the first power circuit breaker IB1, second source breaker IB2, mother power supply are disconnected
When road device IB3 is in gate-dividing state, the first device for under-voltage releasing equipment UR1, the second device for under-voltage releasing equipment UR2, mother undervoltage tripping
The equal UR3 of device and secondary power supply are connected, at this moment the first power circuit breaker IB1, second source breaker IB2 and mother power circuit breaker
IB3 can close a floodgate；And after the first power circuit breaker IB2 closes a floodgate, the first auxiliary switch SA1 can only cut off the second undervoltage tripping
A branch of device UR2 and mother device for under-voltage releasing equipment UR3, can not make the second device for under-voltage releasing equipment UR2 and mother device for under-voltage releasing equipment
UR3 power loss can close a floodgate as mother power circuit breaker IB3 and second source breaker IB2；If in the first power circuit breaker
After IB1 closes a floodgate, mother power circuit breaker IB3 also closes a floodgate, then mother auxiliary switch SA3 shuts off the first device for under-voltage releasing equipment UR1
A branch and the second device for under-voltage releasing equipment UR2 another branch, make the second device for under-voltage releasing equipment UR2 power loss, cause second electricity
Source breaker IB2 is in gate-dividing state, constitutes through the first power circuit breaker IB1 to two loads while scene of powering；If
After the first power circuit breaker IB1 combined floodgate, second source breaker IB2 also closes a floodgate, then the second auxiliary switch SA2 is shut off
A branch of first device for under-voltage releasing equipment UR1 and another branch of mother device for under-voltage releasing equipment UR3, make mother device for under-voltage releasing equipment
UR3 power loss causes mother power circuit breaker IB3 to be in gate-dividing state, constitutes negative to first by the first power circuit breaker IB1
It carries, and second source breaker IB2 is to the power supply scene respectively of the second load；Wherein the power supply I and power supply II are with mother electricity
Source is symmetry status setting, then vice versa for the interlocked relationship of above scenario.To avoid manual maloperation power circuit breaker can
Short-circuit risks between power supply caused by energy, it is ensured that duplex feeding two-way loads the power supply safety of a mother.
The above description is only a preferred embodiment of the present invention, is not intended to limit the invention, for those skilled in the art
For member, the invention may be variously modified and varied, all within the spirits and principles of the present invention, made any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. with the interlock circuit of long distance safety interlock function between a kind of breaker for multiple power supplies, it is characterised in that: described
Interlock circuit includes main circuit and secondary circuit, and the main circuit is loaded all the way by duplex feeding and constituted, wherein the two-way supplies
It include a power circuit breaker, respectively the first power circuit breaker and second source breaker in circuit；It is described secondary
Circuit includes secondary power supply (L1, N), depends on the first device for under-voltage releasing equipment on the first power circuit breaker, depends on the first electricity
The first auxiliary switch on the breaker of source；And the second device for under-voltage releasing equipment on second source breaker is depended on, depend on
The second auxiliary switch on two power circuit breakers；The input terminal of first device for under-voltage releasing equipment and (L1) of secondary power supply are connected,
Its output end is connect with the normally closed contact in the second auxiliary switch, the input terminal of second device for under-voltage releasing equipment and secondary power supply
(L1) it connects, output end is connect with the normally closed contact in the first auxiliary switch, and first auxiliary switch and the second auxiliary are opened
The other end for closing normally closed contact is connect with (N) of secondary power supply.
2. the interlocking electricity between a kind of breaker for multiple power supplies according to claim 1 with long distance safety interlock function
Road, it is characterised in that: first power circuit breaker, the first device for under-voltage releasing equipment and the first auxiliary switch constitute power supply I, and described the
Two power circuit breakers, the second device for under-voltage releasing equipment and the second auxiliary switch constitute power supply II, constitute between the power supply I and power supply II
Interlock circuit；When the first power circuit breaker and second source breaker are in gate-dividing state, first device for under-voltage releasing equipment
It is connected with secondary power supply with the second device for under-voltage releasing equipment, at this moment the first power circuit breaker and second source breaker can close
Lock；And after the first power circuit breaker closes a floodgate, the first auxiliary switch shuts off the second device for under-voltage releasing equipment circuit, makes second under-voltage
Buckle releaser power loss causes second source breaker to be in gate-dividing state；Or after second source breaker closing, second is auxiliary
It helps switch to shut off the first device for under-voltage releasing equipment circuit, makes the first device for under-voltage releasing equipment power loss, the first power circuit breaker is caused to be in
Gate-dividing state, the short-circuit risks between the power supply that may cause so as to avoid manual maloperation power circuit breaker, it is ensured that two-way supplies
The power supply safety that electricity loads all the way.
3. the interlocking electricity between a kind of breaker for multiple power supplies according to claim 1 with long distance safety interlock function
Road, it is characterised in that: the interlock circuit includes main circuit and secondary circuit, and the main circuit loads structure by the power supply of three tunnels all the way
At wherein including a power circuit breaker, respectively the first power circuit breaker, second source in the power supply circuit of three road
Breaker and third power circuit breaker；The secondary circuit includes secondary power supply (L1, N), depends on the first power circuit breaker
On the first device for under-voltage releasing equipment, depend on the first auxiliary switch on the first power circuit breaker, depend on second source breaker
On the second device for under-voltage releasing equipment, depend on the second auxiliary switch on second source breaker, and to depend on third power supply disconnected
Third device for under-voltage releasing equipment on the device of road depends on the third auxiliary switch on third power circuit breaker；First undervoltage tripping
The input terminal of device and (L1) of secondary power supply are connected, and the normally closed contact of the first pole switch of output end and the second auxiliary switch connects
It connects, the first pole of the other end and third auxiliary switch that the first pole of second auxiliary switch switchs normally closed contact switchs normal
Contact connection is closed, the other end of the first pole switch normally closed contact and (N) of secondary power supply of the third auxiliary switch connect；Institute
(L1) of the input terminal and secondary power supply of stating the second device for under-voltage releasing equipment is connected, and the second pole of output end and third auxiliary switch is opened
The normally closed contact of pass connects, the other end of the second pole switch normally closed contact of the third auxiliary switch and the first auxiliary switch
The normally closed contact connection of first pole switch, the other end and secondary electricity of the first pole switch normally closed contact of first auxiliary switch
(N) in source is connected；The input terminal of the third device for under-voltage releasing equipment and (L1) of secondary power supply are connected, output end and the second auxiliary
Switch the second pole switch normally closed contact connection, second auxiliary switch the second pole switch normally closed contact the other end with
The normally closed contact connection of the second pole switch of first auxiliary switch, the second pole switch normally closed contact of first auxiliary switch
(N) of the other end and secondary power supply connection.
4. the interlocking electricity between a kind of breaker for multiple power supplies according to claim 3 with long distance safety interlock function
Road, it is characterised in that: first power circuit breaker, the first device for under-voltage releasing equipment and the first auxiliary switch constitute power supply I, and described the
Two power circuit breakers, the second device for under-voltage releasing equipment and the second auxiliary switch constitute power supply II, and the third power circuit breaker, third are owed
It presses buckle releaser and third auxiliary switch to constitute power supply III, constitutes interlock circuit between the power supply I, power supply II and power supply III；When
When first power circuit breaker, second source breaker and third power circuit breaker are in gate-dividing state, described first is under-voltage de-
It detains device, the second device for under-voltage releasing equipment and third device for under-voltage releasing equipment to connect with secondary power supply, at this moment the first power circuit breaker, the second electricity
Source breaker and third power circuit breaker can close a floodgate；And after the first power circuit breaker closes a floodgate, the first auxiliary switch will
The second device for under-voltage releasing equipment and third device for under-voltage releasing equipment circuit are cut off, the second device for under-voltage releasing equipment and third device for under-voltage releasing equipment power loss are made,
Second source breaker and third power circuit breaker is caused to be in gate-dividing state；Or after second source breaker closing,
Second auxiliary switch shuts off the first device for under-voltage releasing equipment and third device for under-voltage releasing equipment circuit, makes the first device for under-voltage releasing equipment and third
Device for under-voltage releasing equipment power loss causes the first power circuit breaker and third power circuit breaker to be in gate-dividing state；Or work as third power supply
After breaker closing, third auxiliary switch shuts off the first device for under-voltage releasing equipment and the second device for under-voltage releasing equipment circuit, makes first
Device for under-voltage releasing equipment and the second device for under-voltage releasing equipment power loss, cause the first power circuit breaker and second source breaker to be in separating brake shape
State, the short-circuit risks between the power supply that may cause so as to avoid manual maloperation power circuit breaker, it is ensured that three tunnels power supply one
The power supply safety of road load.
5. the interlocking electricity between a kind of breaker for multiple power supplies according to claim 1 with long distance safety interlock function
Road, it is characterised in that: the interlock circuit includes main circuit and secondary circuit, and the main circuit is by duplex feeding two-way load one
Mother is constituted, wherein including a power circuit breaker, the respectively first electricity in the duplex feeding circuit and mother circuit
Source breaker, second source breaker and mother power circuit breaker；The secondary circuit includes secondary power supply (L1, N), is depended on
In the first device for under-voltage releasing equipment on the first power circuit breaker, the first auxiliary switch on the first power circuit breaker is depended on；And
The second device for under-voltage releasing equipment on second source breaker is depended on, the second auxiliary switch on second source breaker is depended on；
And mother device for under-voltage releasing equipment on mother power circuit breaker is depended on, the mother auxiliary depended on mother power circuit breaker is opened
It closes；(L1) of the input terminal of first device for under-voltage releasing equipment and secondary power supply is connected, and the of output end and mother auxiliary switch
The normally closed contact connection of the first pole switch of the normally closed contact and the second auxiliary switch of one pole switch, the mother auxiliary switch
First pole switch normally closed contact the other end and the second auxiliary switch the first pole switch normally closed contact the other end with it is secondary
(N) of power supply is connected；The input terminal of the mother device for under-voltage releasing equipment and (L1) of secondary power supply are connected, and output end is auxiliary with first
The first pole of switch is helped to switch the second pole switch normally closed contact connection of normally closed contact and the second auxiliary switch, first auxiliary
The other end of the second pole switch normally closed contact of the other end and the second auxiliary switch of the first pole switch normally closed contact of switch is equal
It is connect with (N) of secondary power supply；(L1) of the input terminal of second device for under-voltage releasing equipment and secondary power supply is connected, output end with
The normally closed contact of the second pole switch of first auxiliary switch is connected with the normally closed contact that the second pole of mother auxiliary switch switchs, institute
State the other end of the second pole switch normally closed contact of the first auxiliary switch and the second pole switch normally closed contact of mother auxiliary switch
The other end connect with (N) of secondary power supply.
6. the interlocking electricity between a kind of breaker for multiple power supplies according to claim 5 with long distance safety interlock function
Road, it is characterised in that: first power circuit breaker, the first device for under-voltage releasing equipment and the first auxiliary switch constitute power supply I, and described the
Two power circuit breakers, the second device for under-voltage releasing equipment and the second auxiliary switch constitute power supply II, and it is de- that the busbar breaker, mother are under-voltage
It detains device and mother auxiliary switch constitutes mother power supply, by interlocking electricity with mother electric power generating composition between the power supply I and power supply II
Road；When the first power circuit breaker, second source breaker, mother power circuit breaker are in gate-dividing state, described first is owed
Buckle releaser, the second device for under-voltage releasing equipment, mother device for under-voltage releasing equipment is pressed to connect with secondary power supply, at this moment the first power circuit breaker, the
Two power circuit breakers and mother power circuit breaker can close a floodgate；And after the first power circuit breaker closes a floodgate, the first auxiliary switch
The branch that the second device for under-voltage releasing equipment and mother device for under-voltage releasing equipment can only be cut off, can not make the second device for under-voltage releasing equipment and mother
Device for under-voltage releasing equipment power loss can close a floodgate as mother power circuit breaker and second source breaker；If in the first electric power disconnection
After device closes a floodgate, mother power circuit breaker also closes a floodgate, then mother auxiliary switch shuts off a branch of the first device for under-voltage releasing equipment
With another branch of the second device for under-voltage releasing equipment, makes the second device for under-voltage releasing equipment power loss, second source breaker is caused to be in separating brake
State is constituted through the first power circuit breaker to two loads while scene of powering；If after the first power circuit breaker combined floodgate,
Second source breaker also closes a floodgate, then the second auxiliary switch shut off the first device for under-voltage releasing equipment a branch and mother it is under-voltage
Another branch of buckle releaser makes mother device for under-voltage releasing equipment power loss, and mother power circuit breaker is caused to be in gate-dividing state, constitutes logical
The first power circuit breaker is crossed to the first load, and second source breaker is to the power supply scene respectively of the second load；It is wherein described
Power supply I and power supply II are arranged by symmetry status of mother power supply, then vice versa for the interlocked relationship of above scenario, to avoid hand
Short-circuit risks between the power supply that dynamic maloperation power circuit breaker may cause, it is ensured that duplex feeding two-way loads the confession of a mother
Electric safety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840090.8A CN110534368A (en) | 2019-09-06 | 2019-09-06 | With the interlock circuit of long distance safety interlock function between a kind of breaker for multiple power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840090.8A CN110534368A (en) | 2019-09-06 | 2019-09-06 | With the interlock circuit of long distance safety interlock function between a kind of breaker for multiple power supplies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110534368A true CN110534368A (en) | 2019-12-03 |
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ID=68667268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910840090.8A Pending CN110534368A (en) | 2019-09-06 | 2019-09-06 | With the interlock circuit of long distance safety interlock function between a kind of breaker for multiple power supplies |
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| Country | Link |
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| CN (1) | CN110534368A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956742U (en) * | 2010-12-04 | 2011-08-31 | 肖林 | Circuit for automatically switching main power supply and standby power supply |
| CN204792535U (en) * | 2015-04-17 | 2015-11-18 | 徐云峰 | Disconnected electrical interlocks of an unification |
| CN204792536U (en) * | 2015-04-17 | 2015-11-18 | 徐云峰 | Disconnected electrical interlocks of two unifications |
| CN204905103U (en) * | 2015-04-17 | 2015-12-23 | 徐云峰 | One closes two disconnected electrical interlockss |
-
2019
- 2019-09-06 CN CN201910840090.8A patent/CN110534368A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956742U (en) * | 2010-12-04 | 2011-08-31 | 肖林 | Circuit for automatically switching main power supply and standby power supply |
| CN204792535U (en) * | 2015-04-17 | 2015-11-18 | 徐云峰 | Disconnected electrical interlocks of an unification |
| CN204792536U (en) * | 2015-04-17 | 2015-11-18 | 徐云峰 | Disconnected electrical interlocks of two unifications |
| CN204905103U (en) * | 2015-04-17 | 2015-12-23 | 徐云峰 | One closes two disconnected electrical interlockss |
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Application publication date: 20191203 |
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