CN206283258U - A kind of contact of two inlet wire one shutting-brake control electrical structure and power distribution equipment - Google Patents
A kind of contact of two inlet wire one shutting-brake control electrical structure and power distribution equipment Download PDFInfo
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- CN206283258U CN206283258U CN201621344348.3U CN201621344348U CN206283258U CN 206283258 U CN206283258 U CN 206283258U CN 201621344348 U CN201621344348 U CN 201621344348U CN 206283258 U CN206283258 U CN 206283258U
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Abstract
The utility model is applied to electric field, there is provided a kind of two inlet wire one gets in touch with shutting-brake control electrical structure and power distribution equipment, and the structure includes：Three combined floodgate key locks and two combined floodgate keys, breaker can carry out shutting-brake control only when combined floodgate key lock is plugged with combined floodgate key, mechanical interlocked to realize；The structure also includes：Switching switch, the first on/off switch switch, the second on/off switch switch, the 3rd on/off switch switch being connected with breaker multiple pin, interlock on/off switch loop, to realize electrical interlocks by incoming line cabinet and contact cabinet auxiliary contact.The utility model realizes electrical interlocks using auxiliary contacts of circuit breaker interlocking on/off switch loop, and realized by three two keys of lock mechanical interlocked, two breakers are at most allowed to close a floodgate simultaneously so as to ensure that two inlet wire one gets in touch with three breakers, even if operating personnel's maloperation, also will not have any detrimental effect to equipment, it is ensured that two transformers whenever be not in paired running situation.
Description
Technical field
The utility model belongs to electric field, more particularly to a kind of two inlet wire one contact shutting-brake control electrical structure and distribution
Device.
Background technology
At present, in Industry Control, transformer does not allow paired running in most of project, in such cases, if two
Platform Circuit Fault on Secondary Transformer is directly connected, and Circuit Fault on Secondary Transformer can be caused to produce circulation, increases transformer loss, or even occur short
Road accident, it is therefore necessary to ensure that two inlet wire one is got in touch with three most two breakers of breaker and closed a floodgate simultaneously.So-called two inlet wire one
Contact refers to that a breaker is respectively provided with two incoming line cabinets, a breaker is set in a contact cabinet, by control one
The breaker closing in breaker and contact cabinet in individual incoming line cabinet, realizes a selection for change inlet wire path.
However, in the design of existing control circuit, it is general only by simple electrical interlocks or only by simple
It is mechanical interlocked to realize shutting-brake control, in only electrical interlocks, can be closed a floodgate by the switch knob of breaker body, can now go out
The situation that existing three of short duration breakers close a floodgate simultaneously, deleterious effect is caused to system, and reliability is not high；In only mechanical mutual
During lock, can be closed a floodgate by the electric switch knob on panel, mechanical interlocked due to existing, the 3rd breaker closing does not get on,
In the case that but operating personnel do not understand cause, the switch knob on panel may be always pressed, cause closing coil to continue
Electric must cannot but close a floodgate, cause coil burnout.
Utility model content
The purpose of the utility model embodiment is to provide a kind of contact of two inlet wire one shutting-brake control electrical structure, it is intended to solved
It is certainly existing to cause that poor reliability, security are low to ask by electrical interlocks or merely by mechanical interlocked control combined floodgate merely
Topic.
The utility model embodiment is achieved in that a kind of two inlet wire one contact shutting-brake control electrical structure, including with
First incoming line cabinet of the first transformer connection and the second incoming line cabinet of the second transformer connection, and be connected to described first and enter
Contact cabinet between line cabinet and second incoming line cabinet, in first incoming line cabinet, second incoming line cabinet and the contact cabinet
Include the first breaker, the second breaker and the 3rd breaker respectively, the shutting-brake control electrical structure also includes：Three combined floodgates
Key lock and two combined floodgate keys, three respectively lock combined floodgate key lock and are connected on three breakers, and the breaker only exists
When combined floodgate key lock is plugged with combined floodgate key, shutting-brake control can be carried out；
The shutting-brake control electrical structure also includes：
Switching switch, the first on/off switch switch, the second on/off switch switch, the 3rd on/off switch switch；
The combined floodgate of the 3rd breaker indicates the first pin to be led with second conduction terminal for switching switch, the 4th simultaneously
Go side connects, and the separating brake of the 3rd breaker indicates the first pin while the second conduction terminal, the 4th that are switched with the switching
Conduction terminal connect, it is described switching switch the 3rd conduction terminal be connected with first node, it is described switching switch the first conduction terminal and
Section Point is connected, and the first node is connected on the live wire of the first breaker outgoing line side, the Section Point connection
In on the live wire of the second breaker outgoing line side, the separating brake of the 3rd breaker indicates the first pin to indicate to draw with its energy storage
First group of external pin between pin by first breaker is connected, and the separating brake of the 3rd breaker indicates the first pin
Also it is connected by first group of external pin of second breaker between indicating pin with its energy storage, the 3rd breaker
The pin of tank circuit first and its energy storage indicate pin be connected, the pin of controller power supply first of the 3rd breaker and
Its pin of tank circuit first is connected, the divide-shut brake functional pin of the 3rd breaker by the 3rd on/off switch switch with
Its pin of tank circuit first is connected；
The combined floodgate of first breaker indicates the first pin and separating brake to indicate the first pin to be connected with the 3rd node, institute
The tie point that the 3rd node is first breaker and the first transformer is stated, the separating brake of first breaker indicates first to draw
Pin and its energy storage indicate to be connected by first group of external pin of the 3rd breaker between pin, first breaker
Separating brake also combines lock self-locking pin and connects between indicating the first pin to indicate pin with its energy storage by the one of first breaker
Connect, the pin of tank circuit first and its energy storage of first breaker indicate pin to be connected, the control of first breaker
The pin of device working power first is connected with its pin of tank circuit first, and the divide-shut brake functional pin of first breaker passes through
The first on/off switch switch is connected with its pin of tank circuit first；
The combined floodgate of second breaker indicates the first pin and separating brake to indicate the first pin to be connected with fourth node, institute
The tie point that fourth node is second breaker and the second transformer is stated, the separating brake of second breaker indicates first to draw
Pin and its energy storage indicate to be connected by first group of external pin of the 3rd breaker between pin, second breaker
Separating brake also combines lock self-locking pin and connects between indicating the first pin to indicate pin with its energy storage by the one of second breaker
Connect, the energy storage of the pin of tank circuit first of second breaker and first breaker indicates pin to be connected, described the
The pin of controller power supply first of two breakers is connected with its pin of tank circuit first, the division of second breaker
Lock functional pin is switched by second on/off switch and is connected with its pin of tank circuit first；
Combined floodgate in first breaker, second breaker and the 3rd breaker indicates second pin, divides
Lock indicate second pin, tank circuit second pin, combined floodgate second pin, separating brake second pin, time delay decompression second pin and
Controller power supply second pin, is connected with zero line.
Further, the shutting-brake control electrical structure also includes：
First fuse, is serially connected between the 3rd conduction terminal of the switching switch and first node；
Second fuse, is serially connected between the first conduction terminal of the switching switch and Section Point.
Further, the shutting-brake control electrical structure also includes：
3rd fuse, is serially connected between the 3rd node and the combined floodgate instruction pin of first breaker, or be serially connected with
The separating brake of the 3rd node and first breaker is indicated between pin；
4th fuse, is serially connected between fourth node and the combined floodgate instruction pin of second breaker, or be serially connected with
The separating brake of fourth node and second breaker is indicated between pin.
Further, the shutting-brake control electrical structure also includes：
3rd combined floodgate indicator lamp, the combined floodgate for being serially connected with the 3rd breaker indicates the 4th of pin and the switching switch
Between conduction terminal.
3rd separating brake indicator lamp, the separating brake for being serially connected with the 3rd breaker indicates the 4th of pin and the switching switch
Between conduction terminal.
Further, the shutting-brake control electrical structure also includes：
First combined floodgate indicator lamp, is serially connected with the combined floodgate of first breaker and indicates between pin and the 3rd node；
First separating brake indicator lamp, is serially connected with the separating brake of first breaker and indicates between pin and the 3rd node.
Further, the shutting-brake control electrical structure also includes：
Second combined floodgate indicator lamp, is serially connected with the combined floodgate of second breaker and indicates between pin and fourth node；
Second separating brake indicator lamp, is serially connected with the separating brake of second breaker and indicates between pin and fourth node.
Further, the first on/off switch switch, second on/off switch switch, the 3rd on/off switch switch are equal
Including switch knob and opening button；
The switch knob is serially connected between the combined floodgate pin of correspondence breaker and the pin of tank circuit first；
One group of conduction terminal of the opening button is connected with the pin of tank circuit first of corresponding breaker, and the separating brake is pressed
Another group of conduction terminal of button is connected with the separating brake pin and time delay decompression pin of corresponding breaker respectively.
Further, the shutting-brake control electrical structure also includes：
First energy storage indicator lamp, the energy storage for being serially connected with first breaker indicates the one first of pin and the 3rd breaker
Between group external pin；
Second energy storage indicator lamp, the energy storage for being serially connected with second breaker indicates the one first of pin and the 3rd breaker
Between group external pin；
3rd energy storage indicator lamp, the energy storage for being serially connected with the 3rd breaker indicates the one first of pin and the first breaker
Between group external pin.
The another object of the utility model embodiment is, there is provided one kind includes above-mentioned two inlet wire one contact shutting-brake control electricity
The power distribution equipment of depressed structure.
The utility model embodiment realizes electrical interlocks using auxiliary contacts of circuit breaker interlocking on/off switch loop, and by three
Lock two keys realize it is mechanical interlocked, so as to ensure that two inlet wire one gets in touch with three breakers and at most allows two breakers to close simultaneously
Lock, even if operating personnel's maloperation, will not also there is any detrimental effect, it is ensured that two transformers whenever will not to equipment
There is the situation of paired running.
Brief description of the drawings
The mechanical interlock of the contact shutting-brake control electrical structure of two inlet wire one that Fig. 1 is provided for the utility model embodiment
Figure；
The contact shutting-brake control electrical structure of two inlet wire one that Fig. 2 is provided for the utility model embodiment in the first breaker and
Control loop structure chart during the second breaker open operation；
The contact shutting-brake control electrical structure of two inlet wire one that Fig. 3 is provided for the utility model embodiment in the second breaker and
Control loop structure chart during three breaker open operations；
The contact shutting-brake control electrical structure of two inlet wire one that Fig. 4 is provided for the utility model embodiment in the first breaker and
Control loop structure chart during three breaker open operations.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.Additionally, institute in the utility model disclosed below each implementation method
As long as the technical characteristic being related to does not constitute conflict and can just be mutually combined each other.
The utility model embodiment realizes electrical interlocks using auxiliary contacts of circuit breaker interlocking on/off switch loop, and by three
Lock two keys realize it is mechanical interlocked, so as to ensure that two inlet wire one gets in touch with three breakers and at most allows two breakers to close simultaneously
Lock, even if operating personnel's maloperation, will not also there is any detrimental effect, it is ensured that two transformers whenever will not to equipment
There is the situation of paired running.
Fig. 1 shows the mechanical interlocked of the contact shutting-brake control electrical structure of two inlet wire one that the utility model embodiment is provided
Structure, for convenience of description, illustrate only the part related to the utility model.
Used as the embodiment of the utility model one, two inlet wire one contact shutting-brake control electrical structure can apply to any matching somebody with somebody
In electric installation, including the first incoming line cabinet 100 and the second incoming line cabinet 200 of the second transformer connection being connected with the first transformer,
And it is connected to the contact cabinet 300 between the first incoming line cabinet 100 and the second incoming line cabinet 200, the first incoming line cabinet 100, the second inlet wire
Include the first breaker 1QF, the second breaker 2QF and the 3rd breaker 3QF, the combined floodgate control respectively in cabinet 200 and contact cabinet 300
Electrical structure processed also includes：
Three combined floodgate key locks and two combined floodgate keys, the first combined floodgate key lock 101, the second combined floodgate key lock the 201, the 3rd
Combined floodgate key lock 301 locks be connected on the first breaker 1QF, the second breaker 2QF and the 3rd breaker 3QF respectively, when and
Only when combined floodgate key is plugged on combined floodgate key lock, corresponding breaker just allows to close a floodgate, and three have combined floodgate key lock
And only two combined floodgate keys, therefore can only there are two breakers to close a floodgate simultaneously.
What deserves to be explained is, first combined floodgate control could be carried out to the breaker on the combined floodgate key lock after grafting combined floodgate key
System, and combined floodgate key cannot be extracted after the breaker closing, and combined floodgate key could be extracted after controlling the breaker open operation
Spoon, combined floodgate or the separating brake control to breaker can be by the mechanical on/off switch button controls of on/off switch switch or breaker body
System is realized.
In the utility model embodiment, when normal two-way power supply is powered, two combined floodgate keys are inserted in first respectively
On the second breaker 2QF in the first breaker 1QF and the second incoming line cabinet 200 in incoming line cabinet 100, the first breaker 1QF and
Second breaker 2QF allows to switch 1SB by first on/off switch of this cabinet and the second on/off switch switchs 2SB and controls to close a floodgate, now
3rd breaker 3QF is then without key, it is impossible to realize closing a floodgate, it is achieved thereby that mechanical interlocked, it is to avoid three breakers are closed simultaneously
The harmful effect that lock is caused to system.
It is of course also possible to replace on/off switch to switch control breaker mechanical with the mechanical switch knob of breaker body close
Lock.
What deserves to be explained is, in the utility model embodiment, combined floodgate key lock is connected with the locking of breaker can foundation
Depending on the construction of specific product, do not limit herein, as long as after both connections, breaker can when combined floodgate key lock is without key
With locked, it is impossible to close a floodgate, the annexation that can be closed a floodgate when there is key belongs to signified " the locking connection " of this programme.
Fig. 2 shows that the contact shutting-brake control electrical structure of two inlet wire one that the utility model embodiment is provided is breaking first
Control loop structure when device and the second breaker open operation, for convenience of description, illustrate only the portion related to the utility model
Point.
First breaker 1QF, the second breaker 2QF and the 3rd breaker 3QF internal structure it is identical, include：It is multiple
Auxiliary contact AX, motor M, energy storage is normally opened, normally-closed contact SA, coil X, F, Q, and processing unit；
First breaker 1QF, the second breaker 2QF and the 3rd breaker 3QF include following pin：47 pins and 46 draw
Pin is respectively combined floodgate and indicates the first pin and close a floodgate to indicate second pin, and 45 pins and 44 pins are respectively separating brake and indicate first to draw
Pin and separating brake indicate second pin, and 31 pins are that energy storage indicates pin, and 29 pins and 30 pins are respectively tank circuit first and draw
Pin and tank circuit second pin, 27 pins and 28 pins be respectively combined floodgate the first pin and combined floodgate second pin, 25 pins and
26 pins are respectively the pin of separating brake first and separating brake second pin, 23 pins and 24 pins be respectively the pin of time delay decompression first and
Time delay decompression second pin, 1 pin and 2 pins are respectively the pin of controller power supply first and controller power supply second
Pin；
For the 3rd breaker 3QF, 37 pins and 36 pins are first group of external pin, cause the first incoming line cabinet, and 37 draw
Connected by normally-closed contact AX3 inside the 3rd breaker 3QF between pin and 36 pins；33 pins and 32 pins are outside second group
Pin is connect, the second incoming line cabinet is caused, is connected by normally-closed contact AX4 inside the 3rd breaker 3QF between 33 pins and 32 pins
Connect.
For the second breaker 2QF, 37 pins and 36 pins are first group of external pin, cause contact cabinet, 37 pins and
Connected by normally-closed contact AX2 inside the second breaker 2QF between 36 pins；33 pins and 32 pins are standby pin；35
Pin and 34 pins are combined floodgate self-locking pin, pass through auxiliary contact between 35 pins and 34 pins inside the second breaker 2QF
AX5 is connected, in the case where the second breaker 2QF closes a floodgate, auxiliary contact AX5 closures.
For the first breaker 1QF, 37 pins and 36 pins are first group of external pin, cause contact cabinet, 37 pins and
Connected by normally-closed contact AX1 inside the first breaker 1QF between 36 pins；33 pins and 32 pins are standby pin；35
Pin and 34 pins are combined floodgate self-locking pin, pass through auxiliary contact between 35 pins and 34 pins inside the first breaker 1QF
AX6 is connected, in the case where the first breaker 1QF closes a floodgate, auxiliary contact AX6 closures.
Used as the preferred embodiment of the utility model one, two inlet wire one contact shutting-brake control electrical structure also includes：
Switching switch 1SA, the first on/off switch switch 1SB, the second on/off switch switch 2SB, the 3rd on/off switch switch 3SB；
3rd breaker 3QF combined floodgate indicate the 47th simultaneously with switching switch one pin 1SA the second conduction terminal 2., the 4th
4. conduction terminal connects, and the separating brake of the 3rd breaker 3QF indicates the first pin 45 to switch second conduction terminal of 1SA with switching simultaneously
2., 4. the 4th conduction terminal connects, and 3. the 3rd conduction terminal of switching switch 1SA is connected with (first) node L11, switching switch 1SA
The first conduction terminal be 1. connected with (second) node L21, node L11 is connected to the live wire L of the first breaker 1QF outgoing line sides
On, node L21 is connected on the live wire L of the second breaker 2QF outgoing line sides, and the separating brake of the 3rd breaker 3QF indicates the first pin
Connected by first group of external pin 37,36 of the first breaker 1QF between 45 and energy storage instruction pin 31, the 3rd breaker
The separating brake of 3QF indicates the first pin 45 and energy storage to indicate between pin 31 also external to draw by first group of the second breaker 2QF
Pin 37,36 is connected, and the first pin of tank circuit 29 and its energy storage of the 3rd breaker 3QF indicate pin 31 to be connected, the 3rd open circuit
First pin of controller power supply 1 of device 3QF is connected with the first pin of tank circuit 29, the divide-shut brake of the 3rd breaker 3QF
Functional pin switchs 3SB and is connected with the first pin of tank circuit 29 by the 3rd on/off switch, outside first group of the 3rd breaker 3QF
Connect pin 37,36 to be connected between the separating brake of the first breaker 1QF the first pin 45 of instruction and energy storage instruction pin 31, the 3rd breaks
The separating brake that second group of external pin 33,32 of road device 3QF is connected to the second breaker 2QF indicates the first pin 45 to be indicated with energy storage
Between pin 31；
Combined floodgate in 3rd breaker 3QF indicates second pin 46, separating brake to indicate second pin 44, tank circuit second to draw
Pin 30, combined floodgate second pin 28, separating brake second pin 26, time delay decompression second pin 24 and controller power supply second pin
2, it is connected with zero line N.
Specifically, the 3rd on/off switch switch 3SB can include switch knob 3SB1 and opening button 3SB2, switch knob
3SB1 is serially connected between the combined floodgate pin 27 of the 3rd breaker 3QF and the first pin of tank circuit 29, and the one of opening button 3SB2
Group conduction terminal is connected with the first pin of tank circuit 29, another group of conduction terminal of opening button 3SB2 respectively with the 3rd breaker
The separating brake pin 25 and time delay decompression pin 23 of 3QF are connected.
Preferably, 3. the 3rd conduction terminal in switching switch 1SA can also concatenate one first fuse between node L11
1FU, switching switch 1SA the first conduction terminal one second fuse 2FU 1. can also be concatenated between node L21, for
Protected by fusing when passage current is excessive.
Preferably, the 3rd breaker 3QF combined floodgate indicate pin 47 and switching switch 1SA the 4th conduction terminal 4. between
One the 3rd combined floodgate indicator lamp HW3 can also be concatenated, pin 45 and switching switch 1SA's are indicated in the separating brake of the 3rd breaker 3QF
4th conduction terminal 4. between can also concatenate one the 3rd separating brake indicator lamp HG3, for ensuring any state under, can normally indicate
Separating brake, the "on" position of the 3rd breaker 3QF.
Preferably, the energy storage in the 3rd breaker 3QF indicate 31 and second breaker 2QF of pin first group of external pin it
One the 3rd energy storage indicator lamp HY3 can also be concatenated between one 36, for carrying out energy storage prompting.
In the utility model embodiment, after the first breaker 1QF and the second breaker 2QF closes a floodgate, in contact cabinet 300
Closing coil X, the zero line 307 of switching winding F disconnect, and the 3rd breaker 3QF splitting or integrating brake cable circles now got in touch with cabinet cannot
Obtain electric, even if operating personnel's maloperation in the case, repeat to switch 3SB, the 3rd breaker 3QF lines by the 3rd on/off switch always
Circle also not electricity, the 3rd breaker 3QF cannot electric on/off switch, so as to realizing electrical interlocks.
In the utility model embodiment, when wherein main transformer power failure or during smaller total load all the way, change is such as needed
It is the scheme powered using power supply all the way, such as, only with the second transformer-supplied, first passes through opening button 1SB2 or open circuit
By the first breaker 1QF separating brakes, with reference to Fig. 3, the switching switch 1SA that then will be got in touch with cabinet turns the mechanical opening button of device body
Change to corresponding gear, the first conduction terminal 1., the second conduction terminal 2. between turn on, now can be by the combined floodgate key in the first incoming line cabinet
Extract, be plugged into the combined floodgate key lock in contact cabinet, it is disconnected quoted from first in contact cabinet due to the first breaker 1QF separating brakes
The normally-closed contact AX1 conductings of road device 1QF, now the on/off switch coil zero line of breaker 3QF can it is electric, while the second inlet wire
The second breaker 2QF in cabinet is due to the auxiliary contact AX5 closures between combined floodgate self-locking pin 34,35, therefore the second breaker
2QF keeps closing a floodgate, and now can control the 3rd open circuit by the mechanical switch knob of switch knob 3SB1 or breaker 3QF bodies
Device 3QF closes a floodgate.
Fig. 3 shows contact shutting-brake control the second breaker of electrical structure of two inlet wire one that the utility model embodiment is provided
Electrical interlocks structure during with three breaker open operations, for convenience of description, illustrate only the part related to the utility model.
In the utility model embodiment, the combined floodgate of the first breaker 1QF indicates the first pin 47 and separating brake to indicate first
Pin 45 is connected with (the 3rd) node 1L1, and node 1L1 is the tie point of the first breaker 1QF and the first transformer, first
Pass through between separating brake first pin 45 of instruction and energy storage instruction pin 31 of breaker 1QF outside first group of the 3rd breaker 3QF
Connect the connection of pin 37,36, the separating brake of the first breaker 1QF indicates the first pin 45 and energy storage to indicate between pin 31 also by the
The combined floodgate self-locking pin 35 and 34 of one breaker 1QF is connected, and first pin of tank circuit 29 and first of the first breaker 1QF breaks
The energy storage of road device 1QF indicates pin 31 to connect, and first pin of controller power supply 1 and first of the first breaker 1QF is breaking
First pin of tank circuit 29 of device 1QF is connected, and the divide-shut brake functional pin of the first breaker 1QF is switched by the first on/off switch
1SB is connected with the first pin of tank circuit 29, and first group of external pin 37,36 of the first breaker 1QF is connected to the 3rd open circuit
The separating brake of device 3QF is indicated between the first pin 45 and energy storage instruction pin 31, second group of external pin of the first breaker 1QF
33rd, 32 is that standby pin is hanging；
Combined floodgate in first breaker 1QF indicates second pin 46, separating brake to indicate second pin 44, tank circuit second to draw
Pin 30, combined floodgate second pin 28, separating brake second pin 26, time delay decompression second pin 24 and controller power supply second pin
2, it is connected with zero line N.
Specifically, the first on/off switch switch 1SB can include switch knob 1SB1 and opening button 1SB2, switch knob
1SB1 is serially connected between the combined floodgate pin 27 of the first breaker 1QF and the first pin of tank circuit 29, and the one of opening button 1SB2
Group conduction terminal is connected with first pin of tank circuit 29 of the first breaker 1QF, another group of conduction terminal point of opening button 1SB2
It is not connected with the separating brake pin 25 and time delay decompression pin 23 of the first breaker 1QF.
Preferably, between the combined floodgate of node 1L1 and the first breaker 1QF indicates pin 47, or node 1L1 and first disconnected
The separating brake of road device 1QF is indicated between pin 45, can also concatenate one the 3rd fuse 3FU, for leading to when passage current is excessive
Fusing is crossed to be protected.
Preferably, the combined floodgate in the first breaker 1QF indicates that between pin 47 and node 1L1 the first combined floodgate can also be concatenated
Indicator lamp HW1, indicates that the instruction of the first separating brake can also be concatenated between pin 45 and node 1L1 in the separating brake of the first breaker 1QF
Lamp HG1, for ensuring any state under, can normally indicate separating brake, the "on" position of the first breaker 1QF.
Preferably, the energy storage in the first breaker 1QF indicates first group of external pin of the breaker 3QF of pin 31 and the 3rd
One of can also concatenate the first energy storage indicator lamp HY1 between 36, for carrying out energy storage prompting.
In the utility model embodiment, after the second breaker 2QF and the 3rd breaker 3QF closes a floodgate, the first incoming line cabinet
In disconnected quoted from the normally-closed contact AX3 of the 3rd breaker 3QF of contact cabinet, and due to the first breaker of separating brake before
Auxiliary contact AX6 between the combined floodgate self-locking pin 34,35 of 1QF has also been disconnected, and the first breaker 1QF on/off switch coil cannot be obtained
Electricity, even if operating personnel's maloperation in the case, repeats to press on/off switch button 1SB1~2 on panel, the first breaker always
1QF coils also not electricity, ensure that the first breaker 1QF cannot close a floodgate, realize electrical interlocks.
Simultaneously as now the first breaker 1QF is without key, it is impossible to closed by the mechanical switch knob of breaker body
Lock, it is achieved thereby that mechanical interlocked.
In the utility model embodiment, if second source failure, it is changed to using the first transformer-supplied, then, first lead to
The mechanical opening button of opening button 2SB2 or breaker body is crossed by the second breaker 2QF separating brakes, by the second incoming line cabinet
Combined floodgate key extract, be plugged into the combined floodgate key lock in the first incoming line cabinet, then will get in touch with cabinet in switching switch 1SA turn
Change to corresponding gear, the 3rd conduction terminal 3., the 4th conduction terminal 4. between turn on, while the 3rd breaker 3QF that will be got in touch with cabinet
Separating brake, now quoted from the normally-closed contact AX3 between first group of external pin 37,36 of the 3rd breaker 3QF in the first incoming line cabinet
Conducting, so that the on/off switch coil zero line of the first breaker 1QF obtains electric, then by switch knob 1SB1 or breaker
The mechanical switch knob of body controls the first breaker 1QF to close a floodgate, due to now the second breaker 2QF separating brake, in contact cabinet
Quoted from the normally-closed contact AX2 conductings between first group of external pin 37,36 of the second breaker 2QF, the conjunction of the 3rd breaker 3QF
Switching winding zero line obtains electric, then the open circuit of mechanical switch knob control the 3rd for passing through switch knob 3SB1 or breaker body
Device 3QF closes a floodgate.So far the whole process powered by the first power supply power switching to second source has been completed.
Fig. 4 shows contact shutting-brake control the first breaker of electrical structure of two inlet wire one that the utility model embodiment is provided
Electrical interlocks structure during with three breaker open operations, for convenience of description, illustrate only the part related to the utility model.
In the utility model embodiment, the combined floodgate of the second breaker 2QF indicates the first pin 47 and separating brake to indicate first
Pin 45 is connected with (the 4th) node 2L1, and node 2L1 is the tie point of the second breaker 2QF and the second transformer, second
Pass through between separating brake first pin 45 of instruction and energy storage instruction pin 31 of breaker 2QF outside second group of the 3rd breaker 3QF
Connect the connection of pin 33,32, the separating brake of the second breaker 2QF indicates the first pin 45 and energy storage to indicate between pin 31 also by the
The combined floodgate self-locking pin 35,34 of two breaker 2QF is connected, and first pin of tank circuit 29 and first of the second breaker 2QF breaks
The energy storage of road device 1QF indicates pin 31 to connect, and first pin of controller power supply 1 and second of the second breaker 2QF is breaking
First pin of tank circuit 29 of device 2QF is connected, and the divide-shut brake functional pin of the second breaker 2QF is switched by the second on/off switch
2SB is connected with the first pin of tank circuit 29, and first group of external pin 37,36 of the second breaker 2QF is connected to the 3rd open circuit
The separating brake of device 3QF is indicated between the first pin 45 and energy storage instruction pin 31, second group of external pin of the second breaker 2QF
33rd, 32 is that standby pin is hanging；
Combined floodgate in second breaker 2QF indicates second pin 46, separating brake to indicate second pin 44, tank circuit second to draw
Pin 30, combined floodgate second pin 28, separating brake second pin 26, time delay decompression second pin 24 and controller power supply second pin
2, it is connected with zero line N.
Specifically, the second on/off switch switch 2SB can include switch knob 2SB1 and opening button 2SB2, switch knob
2SB1 is serially connected between the combined floodgate pin 27 of the second breaker 2QF and the first pin of tank circuit 29, and the one of opening button 2SB2
Group conduction terminal is connected with first pin of tank circuit 29 of the second breaker 2QF, another group of conduction terminal point of opening button 2SB2
It is not connected with the separating brake pin 25 and time delay decompression pin 23 of the second breaker 2QF.
Preferably, between the combined floodgate of node 2L1 and the second breaker 2QF indicates pin 47, or node 2L1 and second disconnected
The separating brake of road device 2QF is indicated between pin 45, can also concatenate one the 4th fuse 4FU, for leading to when passage current is excessive
Fusing is crossed to be protected.
Preferably, the combined floodgate in the second breaker 2QF indicates that between pin 47 and node 2L1 the second combined floodgate can also be concatenated
Indicator lamp HW2, indicates that the instruction of the second separating brake can also be concatenated between pin 45 and node 2L1 in the separating brake of the second breaker 2QF
Lamp HG2, for ensuring any state under, can normally indicate separating brake, the "on" position of the second breaker 2QF.
Preferably, the energy storage in the second breaker 2QF indicates second group of external pin of the breaker 3QF of pin 31 and the 3rd
One of can also concatenate the second energy storage indicator lamp HY2 between 32, for carrying out energy storage prompting.
In the utility model embodiment, the 3rd open circuit in the first breaker 1QF and contact cabinet is inserted in due to key
On device 3QF, now the second breaker 2QF is without key, it is impossible to is closed a floodgate by the mechanical switch knob of breaker body, therefore realized
It is mechanical interlocked.
In the utility model embodiment, after the first breaker 1QF and the 3rd breaker 3QF closes a floodgate, the second incoming line cabinet
In disconnected quoted from the normally-closed contact AX4 between second group of external pin 32,33 of contact cabinet the 3rd breaker 3QF, and due to
The auxiliary contact AX5 between the second breaker 2QF combined floodgate self-lockings pin 34,35 of separating brake has also disconnected before, the second open circuit
Device 2QF on/off switch coil cannot obtain electric, even if operating personnel's maloperation in the case, repeat to be pressed by on/off switch on panel always
Button 2SB1~2, the second breaker 2QF coils also not electricity, ensure that the second breaker 2QF cannot close a floodgate, realize electricity
Gas is interlocked.
The another object of the utility model embodiment is, there is provided one kind includes above-mentioned two inlet wire one contact shutting-brake control electricity
The power distribution equipment of depressed structure.
The utility model embodiment realizes electrical interlocks using auxiliary contacts of circuit breaker interlocking on/off switch loop, and by three
Lock two keys realize it is mechanical interlocked, so as to ensure that two inlet wire one gets in touch with three breakers and at most allows two breakers to close simultaneously
Lock, even if operating personnel's maloperation, will not also there is any detrimental effect, it is ensured that two transformers whenever will not to equipment
There is the situation of paired running.
Preferred embodiment of the present utility model is these are only, is not used to limit the utility model, it is all in this practicality
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (9)
1. a kind of two inlet wire one contact shutting-brake control electrical structure, including the first incoming line cabinet for being connected with the first transformer and the
Second incoming line cabinet of two transformers connection, and it is connected to the contact between first incoming line cabinet and second incoming line cabinet
Cabinet, in first incoming line cabinet, second incoming line cabinet and the contact cabinet respectively include the first breaker, the second breaker and
3rd breaker, it is characterised in that the shutting-brake control electrical structure also includes：Three combined floodgate key locks and two combined floodgate keys
Spoon, three respectively lock combined floodgate key lock and are connected on three breakers, and the breaker is only plugged with conjunction in combined floodgate key lock
During lock key, shutting-brake control can be carried out；
The shutting-brake control electrical structure also includes：
Switching switch, the first on/off switch switch, the second on/off switch switch, the 3rd on/off switch switch；
The combined floodgate of the 3rd breaker indicates the second conduction terminal, the 4th conduction terminal that the first pin is switched with the switching simultaneously
Connection, the separating brake of the 3rd breaker indicates second conduction terminal, fourth conducting of first pin simultaneously with the switching switch
End connection, the 3rd conduction terminal of the switching switch is connected with first node, first conduction terminal and second of the switching switch
Node is connected, and the first node is connected on the live wire of the first breaker outgoing line side, and the Section Point is connected to institute
State on the live wire of the second breaker outgoing line side, the separating brake of the 3rd breaker indicate the first pin and its energy storage indicate pin it
Between connected by first group of external pin of first breaker, the separating brake of the 3rd breaker indicate the first pin and its
Energy storage indicates also to be connected by first group of external pin of second breaker between pin, the energy storage of the 3rd breaker
The pin of loop first indicates pin to be connected with its energy storage, and the pin of controller power supply first of the 3rd breaker is stored up with it
Energy loop first pin connection, the divide-shut brake functional pin of the 3rd breaker is switched by the 3rd on/off switch and stored up with it
Can the pin connection of loop first；
The combined floodgate of first breaker indicates the first pin and separating brake to indicate the first pin to be connected with the 3rd node, and described the
Three nodes are the tie point of first breaker and the first transformer, the separating brake of first breaker indicate the first pin with
Its energy storage indicates to be connected by first group of external pin of the 3rd breaker between pin, the separating brake of first breaker
Also lock self-locking pin is combined between indicating the first pin to indicate pin with its energy storage by the one of first breaker to connect, institute
The pin of tank circuit first and its energy storage for stating the first breaker indicate pin to be connected, the controller work of first breaker
The pin of power supply first is connected with its pin of tank circuit first, and the divide-shut brake functional pin of first breaker is by described the
One on/off switch switch is connected with its pin of tank circuit first；
The combined floodgate of second breaker indicates the first pin and separating brake to indicate the first pin to be connected with fourth node, and described the
Four nodes are the tie point of second breaker and the second transformer, the separating brake of second breaker indicate the first pin with
Its energy storage indicates to be connected by first group of external pin of the 3rd breaker between pin, the separating brake of second breaker
Also lock self-locking pin is combined between indicating the first pin to indicate pin with its energy storage by the one of second breaker to connect, institute
State the pin of tank circuit first of the second breaker indicates pin to be connected with the energy storage of first breaker, second open circuit
The pin of controller power supply first of device is connected with its pin of tank circuit first, the divide-shut brake function of second breaker
Pin is switched by second on/off switch and is connected with its pin of tank circuit first；
Combined floodgate in first breaker, second breaker and the 3rd breaker indicates second pin, separating brake to refer to
Show second pin, tank circuit second pin, combined floodgate second pin, separating brake second pin, time delay decompression second pin and control
Device working power second pin, is connected with zero line.
2. shutting-brake control electrical structure as claimed in claim 1, it is characterised in that the shutting-brake control electrical structure is also wrapped
Include：
First fuse, is serially connected between the 3rd conduction terminal of the switching switch and first node；
Second fuse, is serially connected between the first conduction terminal of the switching switch and Section Point.
3. shutting-brake control electrical structure as claimed in claim 1, it is characterised in that the shutting-brake control electrical structure is also wrapped
Include：
3rd fuse, is serially connected between the 3rd node and the combined floodgate instruction pin of first breaker, or be serially connected with the 3rd
The separating brake of node and first breaker is indicated between pin；
4th fuse, is serially connected between fourth node and the combined floodgate instruction pin of second breaker, or be serially connected with the 4th
The separating brake of node and second breaker is indicated between pin.
4. shutting-brake control electrical structure as claimed in claim 1, it is characterised in that the shutting-brake control electrical structure is also wrapped
Include：
3rd combined floodgate indicator lamp, the combined floodgate for being serially connected with the 3rd breaker indicates the 4th conducting of pin and the switching switch
Between end；
3rd separating brake indicator lamp, the separating brake for being serially connected with the 3rd breaker indicates the 4th conducting of pin and the switching switch
Between end.
5. shutting-brake control electrical structure as claimed in claim 1, it is characterised in that the shutting-brake control electrical structure is also wrapped
Include：
First combined floodgate indicator lamp, is serially connected with the combined floodgate of first breaker and indicates between pin and the 3rd node；
First separating brake indicator lamp, is serially connected with the separating brake of first breaker and indicates between pin and the 3rd node.
6. shutting-brake control electrical structure as claimed in claim 1, it is characterised in that the shutting-brake control electrical structure is also wrapped
Include：
Second combined floodgate indicator lamp, is serially connected with the combined floodgate of second breaker and indicates between pin and fourth node；
Second separating brake indicator lamp, is serially connected with the separating brake of second breaker and indicates between pin and fourth node.
7. shutting-brake control electrical structure as claimed in claim 1, it is characterised in that the first on/off switch switch, described the
Two on/off switch switch, the 3rd on/off switch switch include switch knob and opening button；
The switch knob is serially connected between the combined floodgate pin of correspondence breaker and the pin of tank circuit first；
One group of conduction terminal of the opening button is connected with the pin of tank circuit first of corresponding breaker, the opening button
Another group of conduction terminal is connected with the separating brake pin and time delay decompression pin of corresponding breaker respectively.
8. shutting-brake control electrical structure as claimed in claim 1, it is characterised in that the shutting-brake control electrical structure is also wrapped
Include：
First energy storage indicator lamp, the energy storage for being serially connected with first breaker is indicated outside one first group of pin and the 3rd breaker
Connect between pin；
Second energy storage indicator lamp, the energy storage for being serially connected with second breaker is indicated outside one first group of pin and the 3rd breaker
Connect between pin；
3rd energy storage indicator lamp, the energy storage for being serially connected with the 3rd breaker is indicated outside one first group of pin and the first breaker
Connect between pin.
9. a kind of power distribution equipment, it is characterised in that the power distribution equipment includes that as described in any one of claim 1 to 8 two enter
Line one gets in touch with shutting-brake control electrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621344348.3U CN206283258U (en) | 2016-12-08 | 2016-12-08 | A kind of contact of two inlet wire one shutting-brake control electrical structure and power distribution equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621344348.3U CN206283258U (en) | 2016-12-08 | 2016-12-08 | A kind of contact of two inlet wire one shutting-brake control electrical structure and power distribution equipment |
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| Publication Number | Publication Date |
|---|---|
| CN206283258U true CN206283258U (en) | 2017-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621344348.3U Active CN206283258U (en) | 2016-12-08 | 2016-12-08 | A kind of contact of two inlet wire one shutting-brake control electrical structure and power distribution equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601348A (en) * | 2019-09-18 | 2019-12-20 | 广东金升电器股份有限公司 | Mechanical interlocking device of power supply transmission system |
| 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 |
| CN116896075A (en) * | 2023-07-26 | 2023-10-17 | 上海正泰智能科技有限公司 | Station area communication device and system |
-
2016
- 2016-12-08 CN CN201621344348.3U patent/CN206283258U/en active Active
Cited By (4)
| 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 |
| CN110601348A (en) * | 2019-09-18 | 2019-12-20 | 广东金升电器股份有限公司 | Mechanical interlocking device of power supply transmission system |
| CN116896075A (en) * | 2023-07-26 | 2023-10-17 | 上海正泰智能科技有限公司 | Station area communication device and system |
| CN116896075B (en) * | 2023-07-26 | 2024-03-22 | 上海正泰智能科技有限公司 | Station area communication device and system |
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