CN206481103U - The control circuit of double-bus distribution - Google Patents
The control circuit of double-bus distribution Download PDFInfo
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- CN206481103U CN206481103U CN201720194250.2U CN201720194250U CN206481103U CN 206481103 U CN206481103 U CN 206481103U CN 201720194250 U CN201720194250 U CN 201720194250U CN 206481103 U CN206481103 U CN 206481103U
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Abstract
The utility model belongs to technical field of electric control there is provided a kind of control circuit of double-bus distribution, including multigroup double-bus and at least one interlocking modules, and multigroup double-bus is sequentially connected one by one by interlocking modules respectively；Interlocking modules are switched on or off according to the working condition of two adjacent groups double-bus；When at least one set of double-bus breaks down in two adjacent groups double-bus, then interlocking modules are turned on；When two adjacent groups double-bus does not all break down, then interlocking modules are closed.Thus the electrical connection between different double-bus is utilized, when realizing any one or more groups of double bus power supply failures, the effect of the timely supplementary power of other double-bus；Meanwhile, there is perfect interlock connection in single double-bus configuration system between multigroup double-bus, solve the double-bus configuration system that interconnection switch is set only with two transformer bays, cause the problem of power supply reliability is not high.
Description
Technical field
The utility model belongs to technical field of electric control, the control circuit of more particularly to a kind of double-bus distribution.
Background technology
Currently, double-bus configuration system is that two step down sides are connected by getting in touch with cabinet, wherein a transformer fault
In the case of, transmitted electric power by getting in touch with cabinet to other one section of bus.
But, when electric power system contains multigroup double-bus, interconnection switch only is set between two transformers, when wherein
Two transformer isopipteses road failures or during transformer faults itself in any one group of double-bus configuration system, this failure system
It will be unable to obtain supply of electric power, what its fire-fighting load connect, emergency lighting, special process load etc. can not be powered off for a long time should
Anxious load powers off long-time, and potential safety hazard is brought to production and life.
Utility model content
The utility model purpose is the control circuit for providing a kind of double-bus distribution, it is intended to solve only with two transformations
The double-bus configuration system of interconnection switch is set between device, causes the problem of power supply reliability is not high.
The utility model provide a kind of double-bus distribution control circuit, the control circuit include multigroup double-bus and
At least one interlocking modules, multigroup double-bus is sequentially connected one by one by the interlocking modules respectively；
Interlocking modules working condition of double-bus according to two adjacent groups is switched on or off；
When at least one set of double-bus breaks down in double-bus described in two adjacent groups, then the interlocking modules are led
It is logical；
When double-bus does not all break down described in two adjacent groups, then the interlocking modules are closed.
Further, multigroup double-bus includes the first double-bus, the second double-bus and the 3rd double-bus, at least one
The individual interlocking modules include the first interlocking modules and the second interlocking modules；
First double-bus is connected with second double-bus by first interlocking modules, second couple of mother
Line is connected with the 3rd double-bus by second interlocking modules；
When first double-bus and/or second double-bus break down, then the first interlocking modules conducting,
Otherwise first interlocking modules are closed；
When second double-bus and/or the 3rd double-bus break down, then the second interlocking modules conducting,
Otherwise second interlocking modules are closed.
Further, first double-bus includes lead-in circuit breaker QF1, lead-in circuit breaker QF2 and network interconnecting circuit
QF12, the lead-in circuit breaker QF1 is connected with the lead-in circuit breaker QF2 by the network interconnecting circuit QF12；
Second double-bus includes lead-in circuit breaker QF3, lead-in circuit breaker QF4 and network interconnecting circuit QF34, described
Lead-in circuit breaker QF3 is connected with the lead-in circuit breaker QF4 by the network interconnecting circuit QF34；
3rd double-bus includes lead-in circuit breaker QF5, lead-in circuit breaker QF6 and network interconnecting circuit QF56, described
Lead-in circuit breaker QF5 is connected with the lead-in circuit breaker QF6 by the network interconnecting circuit QF56.
Further, first interlocking modules include circuit breaker Q F13, the first end of the circuit breaker Q F13 with it is described
Lead-in circuit breaker QF1 and the network interconnecting circuit QF12 are connected, and the second end and the inlet wire of the circuit breaker Q F13 break
Road device QF3 and the network interconnecting circuit QF34 are connected；
Second interlocking modules include circuit breaker Q F46, the circuit breaker Q F46 first end and the lead-in circuit breaker
QF4 and the network interconnecting circuit QF34 are connected, the second end of the circuit breaker Q F46 and the lead-in circuit breaker QF6 and
The network interconnecting circuit QF56 is connected.
The utility model provides a kind of control circuit of double-bus distribution, including multigroup double-bus and at least one interlocking
Module, multigroup double-bus is sequentially connected one by one by interlocking modules respectively；Interlocking modules are according to the work of two adjacent groups double-bus
Make state to be switched on or off；When at least one set of double-bus breaks down in two adjacent groups double-bus, then interlocking modules
Conducting；When two adjacent groups double-bus does not all break down, then interlocking modules are closed.Thus the electricity between different double-bus is utilized
Gas is connected, when realizing any one or more groups of double bus power supply failures, the timely supplementary power of other double-bus
Effect；Meanwhile, there is perfect interlock connection in single double-bus configuration system between multigroup double-bus, solve only with two changes
The double-bus configuration system of interconnection switch is set between depressor, causes the problem of power supply reliability is not high.
Brief description of the drawings
A kind of structural representation of the control circuit for double-bus distribution that Fig. 1 provides for the utility model embodiment.
A kind of electrical schematic diagram of the control circuit for double-bus distribution that Fig. 2 provides for the utility model embodiment.
Fig. 3 is the electric control theory figure of the lead-in circuit breaker QF1 shown in Fig. 2.
Fig. 4 is the electric control theory figure of the network interconnecting circuit QF12 shown in Fig. 2.
Fig. 5 is the electric control theory figure of the lead-in circuit breaker QF2 shown in Fig. 2.
Fig. 6 is the electric control theory figure of the network interconnecting circuit QF34 shown in Fig. 2.
Fig. 7 is the electric control theory figure of the circuit breaker Q F13 shown in Fig. 2.
Fig. 8 is the electric control theory figure of the circuit breaker Q F46 shown in Fig. 2.
Embodiment
In order that the technical problems to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
Fig. 1 shows a kind of structure of the control circuit for double-bus distribution that the utility model embodiment is provided, in order to just
In explanation, the part related to the embodiment of the present invention is illustrate only, details are as follows：
The control circuit of this kind of double-bus distribution, including multigroup double-bus and at least one interlocking modules, multigroup double-bus
Sequentially it is connected one by one by interlocking modules respectively.
Interlocking modules are switched on or off according to the working condition of two adjacent groups double-bus.
When at least one set of double-bus breaks down in two adjacent groups double-bus, then interlocking modules are turned on；
When two adjacent groups double-bus does not all break down, then interlocking modules are closed.
Therefore, above-mentioned control circuit includes multigroup double-bus, including：First double-bus 101, the second double-bus the 102, the 3rd
Double-bus 103 ... N double-bus 10n, and per two adjacent groups double-bus be connected by an interlocking modules, example
Such as：The connection end of first the first double-bus 101 of termination of the first interlocking modules 1012, the second termination of the first interlocking modules 1012
First connection end of the second double-bus 102；Second connection of first the second double-bus 102 of termination of the second interlocking modules 1023
End, the first connection end of the second the 3rd double-bus 103 of termination of the second interlocking modules 1023, by that analogy.
Fig. 2 shows a kind of electrical principle of the control circuit for double-bus distribution that the utility model embodiment is provided, and is
It is easy to explanation, illustrate only the part related to the embodiment of the present invention, details are as follows：
As the embodiment of the utility model one, above-mentioned multigroup double-bus specifically includes the first double-bus 101, the second double-bus
102 and the 3rd double-bus 103, at least one interlocking modules includes the first interlocking modules 1012 and the second interlocking modules 1023；
First double-bus 101 is connected with the second double-bus 102 by the first interlocking modules 1012, the second double-bus 102
It is connected with the 3rd double-bus 103 by the second interlocking modules 1023；
When the first double-bus 101 and/or the second double-bus 102 break down, then the first interlocking modules 1012 are turned on, no
Then the first interlocking modules 1012 are closed；
When the second double-bus 102 and/or the 3rd double-bus 103 break down, then the second interlocking modules 1023 are turned on, no
Then the second interlocking modules 1023 are closed.
As the embodiment of the utility model one, the first double-bus 101 include lead-in circuit breaker QF1, lead-in circuit breaker QF2 with
And network interconnecting circuit QF12, lead-in circuit breaker QF1 are connected with lead-in circuit breaker QF2 by network interconnecting circuit QF12；
Second double-bus 102 includes lead-in circuit breaker QF3, lead-in circuit breaker QF4 and network interconnecting circuit QF34, and inlet wire breaks
Road device QF3 is connected with lead-in circuit breaker QF4 by network interconnecting circuit QF34；
3rd double-bus 103 includes lead-in circuit breaker QF5, lead-in circuit breaker QF6 and network interconnecting circuit QF56, and inlet wire breaks
Road device QF5 is connected with lead-in circuit breaker QF6 by network interconnecting circuit QF56.
As the embodiment of the utility model one, the first interlocking modules 1012 include circuit breaker Q F13, and the of circuit breaker Q F13
One end is connected with lead-in circuit breaker QF1 and network interconnecting circuit QF12, circuit breaker Q F13 the second end and lead-in circuit breaker QF3
And network interconnecting circuit QF34 is connected；
Second interlocking modules 1023 include circuit breaker Q F46, circuit breaker Q F46 first end and lead-in circuit breaker QF4 and
Network interconnecting circuit QF34 is connected, and circuit breaker Q F46 the second end is connected with lead-in circuit breaker QF6 and network interconnecting circuit QF56
Connect.
Fig. 4 to Fig. 8 respectively illustrates lead-in circuit breaker QF1, network interconnecting circuit QF12, lead-in circuit breaker QF2, contact open circuit
Device QF34, circuit breaker Q F13 and circuit breaker Q F46 electric control theory, to the work of the control circuit of above-mentioned double-bus distribution
Illustrated as principle, details are as follows：
First double-bus 101 is (hereinafter referred to as：System one), the second double-bus 102 (hereinafter referred to as：System two) and the 3rd
Double-bus 103 is (hereinafter referred to as：System three) contain two lead-in circuit breakers and a network interconnecting circuit, altogether three breakers, three
Platform breaker is respectively installed one and locked closing a floodgate, and three locks have and only two keys.When only inserting a key into breaker closing lock,
The breaker just allows to close a floodgate.Lead-in circuit breaker QF1, lead-in circuit breaker QF2, network interconnecting circuit QF12 are one group (system one)；
Lead-in circuit breaker QF3, lead-in circuit breaker QF4, network interconnecting circuit QF34 be one group (system two), wherein, lead-in circuit breaker QF3 and
Lead-in circuit breaker QF4 electric control theory is identical with above-mentioned lead-in circuit breaker QF1 and lead-in circuit breaker QF2 respectively, therefore not
Illustrate；Lead-in circuit breaker QF5, lead-in circuit breaker QF6, network interconnecting circuit QF56 are one group (system three), wherein, inlet wire open circuit
Device QF5, network interconnecting circuit QF56 and lead-in circuit breaker QF6 respectively with above-mentioned lead-in circuit breaker QF1, network interconnecting circuit QF12 with
And lead-in circuit breaker QF2 electric control theory is identical, therefore do not illustrate.
Breaker on/off switch indicates that HW, HG are placed on electrical interlocks, it is ensured that under any state, can normally indicate open circuit
The on/off switch state of device.
First, the inlet wire one of single group two contact control mode (being illustrated by system one)：
When normal two-way power supply is powered, key is positioned over lead-in circuit breaker QF1 and 2# the main transformer inlet wire of 1# main transformer inlet wires
Lead-in circuit breaker QF2, lead-in circuit breaker QF1 and lead-in circuit breaker QF2 allow by the switch knob 1SB1 of this cabinet or open circuit
After the mechanical switch knob combined floodgate of device body, lead-in circuit breaker QF1 and lead-in circuit breaker QF2 close a floodgate, cabinet on/off switch line is got in touch with
The zero line of circle disconnects, and now network interconnecting circuit QF12 on/off switch coil can not obtain electric, and now network interconnecting circuit QF12 can not electricity
Gas on/off switch, realizes electrical interlocks.Even and if operating personnel's maloperation in this case, repeat always by on/off switch on panel
Button 12SB1~2, network interconnecting circuit QF12 coils also not electricity, electrical interlocks is realized well.Simultaneously because key is put
Lead-in circuit breaker QF1 and lead-in circuit breaker QF2 are placed in, now network interconnecting circuit QF12 is then without key, it is impossible to pass through breaker sheet
Body machinery closes a floodgate, and realizes mechanical interlocked.
When wherein main transformer power failure or during smaller total load all the way, as that need to be changed to using the side that power supply is powered all the way
Case, such as, only with 2# transformer-supplieds, first passing through opening button 1SB2 or breaker body mechanical opening button will enter
Line circuit breaker Q F1 separating brakes, now network interconnecting circuit QF12 on/off switch coil zero line can obtain electric, while 2# main transformer inlet wires
Lead-in circuit breaker QF2 keeps closing a floodgate, and can now use the lead-in circuit breaker QF1 of the main transformer inlet wire of separating brake key contact disconnected
On the device QF12 of road, and network interconnecting circuit QF12 is closed by the mechanical switch knob of switch knob 12SB1 or breaker body.
The zero line of the lead-in circuit breaker QF1 on/off switch coils of the main transformer inlet wire of separating brake is to disconnect before simultaneously, lead-in circuit breaker QF1
On/off switch coil can not obtain electric, it is ensured that lead-in circuit breaker QF1 can not close a floodgate, and realize electrical interlocks.Even and if in this case
Operating personnel's maloperation, repeat to press on panel always on/off switch button 1SB1~2,1QF coils also not electricity, realize well
Electrical interlocks.Simultaneously because key is positioned over lead-in circuit breaker QF2 and network interconnecting circuit QF12, now lead-in circuit breaker QF1
Then without key, it is impossible to closed a floodgate, realized mechanical interlocked by the mechanical switch knob of breaker body.Similarly, it is only necessary to use 1#
The scheme operation order of transformer-supplied is consistent with this.
Single system two and the interlock connection of system three are identical with foregoing description.
2nd, the multigroup contact of two inlet wire one control mode：
When system is normally run, system one, two, three is individually run.
When lead-in circuit breaker QF1 in system one and lead-in circuit breaker QF2 is when entering the equal failure of line side supply of electric power, system two
System one is supplied electricity to by circuit breaker Q F13.Lead-in circuit breaker QF3 and lead-in circuit breaker QF4 enter line side supply of electric power in system two
During equal failure, system one supplies electricity to system two by circuit breaker Q F13, or system three supplies electricity to system by circuit breaker Q F46
Two, now it may be noted that can be obtained by Fig. 6, when circuit breaker Q F13 and circuit breaker Q F46 closes a floodgate conduction, network interconnecting circuit QF34 is not
Allow to close a floodgate.When lead-in circuit breaker QF5 in system three and lead-in circuit breaker QF6 is when entering the equal failure of line side supply of electric power, system
Two supply electricity to system three by circuit breaker Q F46.It is lead-in circuit breaker QF1 and lead-in circuit breaker QF2 separating brake or inlet wire simultaneously
Circuit breaker Q F3 and lead-in circuit breaker QF4 simultaneously separating brake when, circuit breaker Q F13 just allow combined floodgate (this explanation is embodied in Fig. 7 breakers
In QF13 electric control theory)；Lead-in circuit breaker QF3 and lead-in circuit breaker QF4 simultaneously separating brake or lead-in circuit breaker QF5 and
Lead-in circuit breaker QF6 simultaneously separating brake when, circuit breaker Q F46 just allow combined floodgate (this explanation is embodied in the electric of Fig. 8 circuit breaker Qs F46
In control principle).
When lead-in circuit breaker QF3 in lead-in circuit breaker QF1 in system one and lead-in circuit breaker QF2, system two and inlet wire are disconnected
When entering the equal failure of line side supply of electric power of road device QF4, system three passes through circuit breaker Q F46, network interconnecting circuit QF34, breaker
QF13 supplies electricity to system one and system two.
When lead-in circuit breaker QF3 in lead-in circuit breaker QF5 in system three and lead-in circuit breaker QF6, system two and inlet wire are disconnected
When entering the equal failure of line side supply of electric power of road device QF4, system one passes through circuit breaker Q F13, network interconnecting circuit QF34, breaker
QF46 supplies electricity to system two and system three.
When lead-in circuit breaker QF5 in lead-in circuit breaker QF1 in system one and lead-in circuit breaker QF2, system three and inlet wire are disconnected
When entering the equal failure of line side supply of electric power of road device QF6, system two supplies electricity to system one by circuit breaker Q F13, and system two passes through disconnected
Road device QF46 supplies electricity to system three.
Therefore, a certain group is solved in multigroup double-bus electric power system or (circuit when a few groups of electric power systems break down
Failure or transformer fault) can not normal power supply the problem of, it is ensured that emergency loop supply of electric power is by adjacent in failure system
Other systems are provided.
In summary, the utility model embodiment provides a kind of control circuit of double-bus distribution, including multigroup double female
Line and at least one interlocking modules, multigroup double-bus are sequentially connected one by one by interlocking modules respectively；Interlocking modules are according to phase
The working condition of adjacent two groups of double-bus is switched on or off；When event occurs at least one set of double-bus in two adjacent groups double-bus
During barrier, then interlocking modules are turned on；When two adjacent groups double-bus does not all break down, then interlocking modules are closed.Thus utilize
Electrical connection between different double-bus, when realizing any one or more groups of double bus power supply failures, other couple of mother
The effect of the timely supplementary power of line；Meanwhile, there is perfect interlock connection, solution in single double-bus configuration system between multigroup double-bus
Determine and the double-bus configuration system of interconnection switch is set only with two transformer bays, caused the problem of power supply reliability is not high.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (4)
1. the control circuit of a kind of double-bus distribution, it is characterised in that the control circuit includes multigroup double-bus and at least one
Individual interlocking modules, multigroup double-bus is sequentially connected one by one by the interlocking modules respectively；
Interlocking modules working condition of double-bus according to two adjacent groups is switched on or off；
When at least one set of double-bus breaks down in double-bus described in two adjacent groups, then the interlocking modules conducting；
When double-bus does not all break down described in two adjacent groups, then the interlocking modules are closed.
2. circuit is controlled as claimed in claim 1, it is characterised in that multigroup double-bus includes the first double-bus, second
Double-bus and the 3rd double-bus, at least one described interlocking modules include the first interlocking modules and the second interlocking modules；
First double-bus is connected with second double-bus by first interlocking modules, second double-bus with
3rd double-bus is connected by second interlocking modules；
When first double-bus and/or second double-bus break down, then the first interlocking modules conducting, otherwise
First interlocking modules are closed；
When second double-bus and/or the 3rd double-bus break down, then the second interlocking modules conducting, otherwise
Second interlocking modules are closed.
3. circuit is controlled as claimed in claim 2, it is characterised in that first double-bus includes lead-in circuit breaker QF1, entered
Line circuit breaker Q F2 and network interconnecting circuit QF12, the lead-in circuit breaker QF1 and the lead-in circuit breaker QF2 pass through described
Network circuit breaker Q F12 is connected；
Second double-bus includes lead-in circuit breaker QF3, lead-in circuit breaker QF4 and network interconnecting circuit QF34, the inlet wire
Circuit breaker Q F3 is connected with the lead-in circuit breaker QF4 by the network interconnecting circuit QF34；
3rd double-bus includes lead-in circuit breaker QF5, lead-in circuit breaker QF6 and network interconnecting circuit QF56, the inlet wire
Circuit breaker Q F5 is connected with the lead-in circuit breaker QF6 by the network interconnecting circuit QF56.
4. circuit is controlled as claimed in claim 3, it is characterised in that first interlocking modules include circuit breaker Q F13, institute
The first end for stating circuit breaker Q F13 is connected with the lead-in circuit breaker QF1 and the network interconnecting circuit QF12, the open circuit
Device QF13 the second end is connected with the lead-in circuit breaker QF3 and the network interconnecting circuit QF34；
Second interlocking modules include circuit breaker Q F46, the first end of the circuit breaker Q F46 and the lead-in circuit breaker QF4
And the network interconnecting circuit QF34 is connected, the second end of the circuit breaker Q F46 and the lead-in circuit breaker QF6 and institute
Network interconnecting circuit QF56 is stated to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720194250.2U CN206481103U (en) | 2017-03-01 | 2017-03-01 | The control circuit of double-bus distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720194250.2U CN206481103U (en) | 2017-03-01 | 2017-03-01 | The control circuit of double-bus distribution |
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| Publication Number | Publication Date |
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| CN206481103U true CN206481103U (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720194250.2U Active CN206481103U (en) | 2017-03-01 | 2017-03-01 | The control circuit of double-bus distribution |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447713B (en) * | 2018-05-18 | 2023-09-29 | 浙江临高电气实业有限公司 | Lock of mechanical interlocking device, mechanical interlocking device and power supply system |
| US11820492B1 (en) | 2023-01-13 | 2023-11-21 | Beta Air, Llc | System of cross-channel communication for effectors in an electric aircraft |
-
2017
- 2017-03-01 CN CN201720194250.2U patent/CN206481103U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447713B (en) * | 2018-05-18 | 2023-09-29 | 浙江临高电气实业有限公司 | Lock of mechanical interlocking device, mechanical interlocking device and power supply system |
| US11820492B1 (en) | 2023-01-13 | 2023-11-21 | Beta Air, Llc | System of cross-channel communication for effectors in an electric aircraft |
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