CN108767968A - Voltage switches the application method of handle side by side - Google Patents
Voltage switches the application method of handle side by side Download PDFInfo
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- CN108767968A CN108767968A CN201810541942.9A CN201810541942A CN108767968A CN 108767968 A CN108767968 A CN 108767968A CN 201810541942 A CN201810541942 A CN 201810541942A CN 108767968 A CN108767968 A CN 108767968A
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Abstract
The present invention relates to the application method that a kind of voltage switches handle side by side, technical solution is：Voltage parallel device is equipped between I busbares and II busbares, first voltage mutual inductor is connected to the inside of voltage parallel device with second voltage mutual inductor, it is connected with the second disconnecting switch by the first disconnecting switch between the anode and cathode of voltage parallel device voltage parallel device, voltage parallel operation handle and the second heavy motor type relay are equipped between first disconnecting switch and the second disconnecting switch, voltage parallel operation handle is equipped with multigroup node, the both sides difference first voltage mutual inductor isolation switch in parallel and second voltage mutual inductor isolation switch of voltage parallel operation handle, the first heavy motor type relay of series connection on the first voltage mutual inductor isolation switch, third of connecting on second voltage mutual inductor isolation switch weight motor type relay；The beneficial effects of the invention are as follows：The voltage occurrence and development of non-homogeneous phenomenon arranged side by side in the process side by side are prevented, influence and the range of protection act exception is limited, improves the reliability of power supply.
Description
Technical field
The present invention relates to a kind of voltage switching equipment arranged side by side, more particularly to a kind of voltage switches the user of handle side by side
Method.
Background technology
With the rapid development of the national economy, requirement of the user to power supply quality is higher and higher, caused by unplanned power failure
Socie-economic loss is increasing, and increasingly higher demands are proposed to the safe and stable operation of power supply unit.Due to one or two times
The particularity of the method for operation and voltage switching circuit, during practical grid switching operation, since frequent switching secondary voltage is arranged side by side
Often there is the phenomenon that voltage parallel device is burnt in circuit.And then cause to protect accordingly, measure, metering device decompression, cause to protect
Protection unit tripping, malfunction influence safe operation of power system, or even cause power system accident.
Existing voltage switches handle QK side by side, and there are two types of states：Point（Off-the-line）, close（Side by side）.The handle acts only on voltage
In the DC control circuit of parallel device, the secondary side voltage function arranged side by side of voltage transformer on two sections of busbares may be implemented, but
Corresponding alternating voltage secondary circuit cannot effectively be isolated in parallel operation when being run due to it, be easy to cause it is non-homogeneous simultaneously
Row, burn voltage plug-in unit arranged side by side.
Currently, in power department and electric power vocational school, it can be realized simultaneously side by side without corresponding equipment and isolation is non-
The function of homologous voltage circuit.
Invention content
The purpose of the present invention provides a kind of voltage and switches handle side by side aiming at drawbacks described above of the existing technology
Application method.
Its technical solution is：Voltage parallel device, first voltage mutual inductor 1PT and the are equipped between I busbares and II busbares
Two voltage transformer 2PT are connected to the inside of voltage parallel device, the positive K-2 of voltage parallel device voltage parallel device and negative
Pass through the first disconnecting switch 1GL and the second disconnecting switch 2GL connections, the first disconnecting switch 1GL and second between the K-4 of pole
The heavy motor type relay J12 of voltage parallel operation handle QK1 and second, voltage parallel operation handle QK1 are equipped between disconnecting switch 2GL
It is equipped with multigroup node, the both sides of voltage parallel operation handle QK1 parallel connection first voltage mutual inductor isolation switch 1G and the respectively
Connect the first heavy motor type relay J11 on two voltage transformer isolation switch 2G, the first voltage mutual inductor isolation switch 1G,
Third of connecting on second voltage mutual inductor isolation switch 2G weight motor type relay J13.
The 7-8 of shunt voltage parallel operation handle, 31-32 nodes on the second above-mentioned heavy motor type relay J12；Described
Voltage parallel operation handle QK1 nodes, A circuitry phase shunt voltages are concatenated in three-phase circuit on one heavy motor type relay J11 respectively
The 19-20 of parallel operation handle QK1,25-26 nodes, the 15-16 of B circuitry phase shunt voltage parallel operation handles QK1,3-4 section
Point, the 17-18 of C circuitry phase shunt voltage parallel operation handles QK1,5-6 nodes, three-phase circuit concatenate first and move relay again respectively
The normally opened contact of the normally opened contact of device J11 and the second heavy motor type relay J12；Three-phase electricity on the third weight motor type relay J13
Voltage parallel operation handle QK1 nodes, the 13-14,1-2 of A circuitry phase shunt voltage parallel operation handles QK1 are concatenated in road respectively
Node, the 21-22 of B circuitry phase shunt voltage parallel operation handles QK1,27-28 nodes, C circuitry phase shunt voltage parallel operations
The 23-24 of handle QK1,29-30 node, three-phase circuit concatenate the normally opened contact of third weight motor type relay J13 respectively, and first moves again
Three-phase circuit is separately connected the three-phase circuit of third weight motor type relay J13 on relay J11.
It is separately connected voltage neutral point circuit on the first above-mentioned heavy motor type relay J11 and third weight motor type relay J13
N600。
A kind of voltage that the present invention mentions switches the application method of handle, including following steps side by side：
A）In " off-the-line ", voltage secondary circuit arranged side by side, 13-14,15-16 on QK1 novel voltage parallel operation handles,
17-18,19-20,21-22,23-24 node connect, at this time from first voltage mutual inductor, second voltage mutual inductor side it is secondary
Voltage is connected to each section of voltage bus through operating handle node, therebetween without any electrical link, can have been realized to alternating voltage
Kind buffer action, while meeting the requirement of fanout operation mode；
B）In " I busbar voltages are for II busbar voltages ", when inlet wire A supplies whole transformer station load, 111 switch and divide
Duan Kaiguan DL, which are in, closes position, and 112 switches, which are in, divides position, and inlet wire B is hot stand-by duty；It, need to be by first under this kind of method of operation
The secondary realization of voltage transformer, second voltage mutual inductor could meet dead section busbar interval protection needs side by side, at this point, by new
Type voltage parallel operation handle QK1 switches to I busbares for II busbar states, and QK1 nodes 7-8 is connected, the first weight in voltage switching
The coil of the heavy motor type relay J13 of motor type relay J11, the second heavy motor type relay J12, third powers on, and the node respectively provided closes
It closes, while node 1-2,3-4, the 5-6 conducting that operating handle QK1 is provided in ac circuit, node 19-20,21-22,23-24,
25-26,27-28,29-30 disconnect, effectively by first voltage mutual inductor and second voltage mutual inductor secondary side voltage carried out every
From avoiding non-homogeneous situation arranged side by side；
C）In " II busbar voltages are for I busbar voltages ", when inlet wire B supplies whole transformer station load, 112 switch and divide
Duan Kaiguan DL, which are in, closes position, and 111 switches, which are in, divides position, and inlet wire A is hot stand-by duty；Under this kind of method of operation, if you need to by
One voltage transformer, second voltage mutual inductor are secondary to realize function arranged side by side, need to only switch novel voltage parallel operation handle QK1
To II busbares for I busbar states, QK1 nodes 31-32 is connected, and the first weight motor type relay J11, second move relay again in voltage switching
Device J12, third weight motor type relay J13 coils power on, and the node respectively provided is closed, while operating handle in ac circuit
The node 25-26 that QK1 is provided, 27-28,29-30 conducting, node 1-2,3-4,5-6,13-14,15-16,17-18 are disconnected, are had
Effect is isolated by first voltage mutual inductor and second voltage mutual inductor secondary side voltage, equally avoids non-homogeneous feelings arranged side by side
The generation of condition.
The beneficial effects of the invention are as follows：It can correctly realize substation's median generatrix voltage function arranged side by side, while being effectively isolated 1,
The equipment of second voltage mutual inductor secondary voltage.Its main function is the hair of non-homogeneous phenomenon arranged side by side during preventing voltage arranged side by side
Raw and development limits influence and the range of protection act exception, improves the reliability of power supply, be one in modern power systems
Important component, it to ensure electric system safe operation, have a very important significance.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the present invention；
Attached drawing 2 is the voltage parallel operation handle node connecting structure schematic diagram of the second weight motor type relay；
Attached drawing 3 is the attachment structure schematic diagram of first voltage mutual inductor and second voltage mutual inductor；
In upper figure：A601~C601 is first voltage mutual inductor secondary side induced voltage, and A603~C603 is second voltage mutual inductance
Device secondary side induced voltage, A602~C602 are secondary side induced voltage of the first voltage mutual inductor after disconnecting switch switches,
A604~C604 is secondary side induced voltage of the second voltage mutual inductor after disconnecting switch switches, and A630I~C630I is through electricity
The switching transformed I busbar voltages of handle, A640I~C640I are to switch the transformed II mothers of handle side by side through voltage to pressure side by side
Line voltage, N600 are voltage neutral point circuit, and the first weight motor type relay J11, the second heavy motor type relay J12, third move relay again
Device J13, K-2 are voltage parallel device anode, and K-4 is voltage parallel device cathode, first voltage mutual inductor isolation switch 1G and
Second voltage mutual inductor isolation switch 2G, the first disconnecting switch 1GL and the second disconnecting switch 2GL.
Specific implementation mode
In conjunction with attached drawing 1-3, the invention will be further described：
The technical scheme is that between I busbares and II busbares be equipped with voltage parallel device, first voltage mutual inductor 1PT with
Second voltage mutual inductor 2PT is connected to the inside of voltage parallel device, the positive K-2 of voltage parallel device voltage parallel device and
Pass through the first disconnecting switch 1GL and the second disconnecting switch 2GL connections, the first disconnecting switch 1GL and between cathode K-4
The heavy motor type relay J12 of voltage parallel operation handle QK1 and second, voltage parallel operation handle are equipped between two disconnecting switch 2GL
QK1 is equipped with multigroup node, the both sides of voltage parallel operation handle QK1 respectively parallel connection first voltage mutual inductor isolation switch 1G with
The first heavy motor type relay of series connection on second voltage mutual inductor isolation switch 2G, the first voltage mutual inductor isolation switch 1G
Third of connecting on J11, second voltage mutual inductor isolation switch 2G weight motor type relay J13.
Wherein, on the second heavy motor type relay J12 shunt voltage parallel operation handle 7-8,31-32 nodes；Described
Voltage parallel operation handle QK1 nodes, A circuitry phase shunt voltages are concatenated in three-phase circuit on one heavy motor type relay J11 respectively
The 19-20 of parallel operation handle QK1,25-26 nodes, the 15-16 of B circuitry phase shunt voltage parallel operation handles QK1,3-4 section
Point, the 17-18 of C circuitry phase shunt voltage parallel operation handles QK1,5-6 nodes, three-phase circuit concatenate first and move relay again respectively
The normally opened contact of the normally opened contact of device J11 and the second heavy motor type relay J12；Three-phase electricity on the third weight motor type relay J13
Voltage parallel operation handle QK1 nodes, the 13-14,1-2 of A circuitry phase shunt voltage parallel operation handles QK1 are concatenated in road respectively
Node, the 21-22 of B circuitry phase shunt voltage parallel operation handles QK1,27-28 nodes, C circuitry phase shunt voltage parallel operations
The 23-24 of handle QK1,29-30 node, three-phase circuit concatenate the normally opened contact of third weight motor type relay J13 respectively, and first moves again
Three-phase circuit is separately connected the three-phase circuit of third weight motor type relay J13 on relay J11.
Wherein, it is separately connected voltage neutral point circuit on the first heavy motor type relay J11 and third weight motor type relay J13
N600。
A kind of voltage that the present invention mentions switches the application method of handle, including following steps side by side：
A）In " off-the-line ", voltage secondary circuit arranged side by side, 13-14,15-16 on QK1 novel voltage parallel operation handles,
17-18,19-20,21-22,23-24 node connect, at this time from first voltage mutual inductor, second voltage mutual inductor side it is secondary
Voltage is connected to each section of voltage bus through QK1 nodes, therebetween without any electrical link, alternating voltage can be realized it is perfect every
From effect, while meeting the requirement of fanout operation mode；
B）In " I busbar voltages are for II busbar voltages ", when inlet wire A supplies whole transformer station load, 111 switch and divide
Duan Kaiguan DL, which are in, closes position, and 112 switches, which are in, divides position, and inlet wire B is that hot stand-by duty need to be by first under this kind of method of operation
The secondary realization of voltage transformer, second voltage mutual inductor could meet dead section busbar interval protection needs side by side, simultaneously by voltage
Row operating handle QK1 switches to I busbares for II busbar states, and QK1 nodes 7-8 is connected, the first heavy motor type relay in voltage switching
The coil of the heavy motor type relay J13 of J11, the second heavy motor type relay J12, third powers on, and the node respectively provided is closed, and is handed over simultaneously
Flow back to node 1-2,3-4, the 5-6 conducting that operating handle QK1 in road is provided, node 19-20,21-22,23-24,25-26,27-
28,29-30 disconnect, and effectively first voltage mutual inductor and second voltage mutual inductor secondary side voltage is isolated, avoids
Non-homogeneous situation arranged side by side；
C）In " II busbar voltages are for I busbar voltages ", when inlet wire B supplies whole transformer station load, 112 switch and divide
Duan Kaiguan DL, which are in, closes position, and 111 switches, which are in, divides position, and inlet wire A is hot stand-by duty；Under this kind of method of operation, if you need to by
One voltage transformer, second voltage mutual inductor are secondary to realize function arranged side by side, need to only switch novel voltage parallel operation handle QK1
To II busbares for I busbar states, QK1 nodes 31-32 is connected, and the first weight motor type relay J11, second move relay again in voltage switching
Device J12, third weight motor type relay J13 coils power on, and the node respectively provided is closed, while operating handle in ac circuit
The node 25-26 that QK1 is provided, 27-28,29-30 conducting, node 1-2,3-4,5-6,13-14,15-16,17-18 are disconnected, are had
Effect is isolated by first voltage mutual inductor and second voltage mutual inductor secondary side voltage, equally avoids non-homogeneous feelings arranged side by side
The generation of condition.
Claims (1)
1. a kind of voltage switches the application method of handle side by side, it is characterized in that：Including following steps：
A）In the case of off-the-line, in voltage secondary circuit arranged side by side, 13-14,15-16,17- on QK1 novel voltage parallel operation handles
18,19-20,21-22,23-24 node are connected, at this time the secondary electricity from first voltage mutual inductor, second voltage mutual inductor side
Pressure is connected to each section of voltage bus through operating handle node, therebetween without any electrical link, can be realized to alternating voltage perfect
Buffer action, while meeting the requirement of fanout operation mode；
B）In the case of I busbar voltages are for II busbar voltages, when inlet wire A supplies whole transformer station load, 111 switches and segmentation
Switch DL, which is in, closes position, and 112 switches, which are in, divides position, and inlet wire B is hot stand-by duty；It, need to be by the first electricity under this kind of method of operation
The secondary realization of pressure mutual inductor, second voltage mutual inductor could meet dead section busbar interval protection needs side by side, at this point, by novel
Voltage parallel operation handle QK1 switches to I busbares for II busbar states, and QK1 nodes 7-8 is connected, and first moves again in voltage switching
The coil of the heavy motor type relay J13 of relay J11, the second heavy motor type relay J12, third powers on, and the node respectively provided is closed,
Node 1-2,3-4, the 5-6 conducting that operating handle QK1 is provided in ac circuit simultaneously, node 19-20,21-22,23-24,25-
26,27-28,29-30 are disconnected, and effectively first voltage mutual inductor and second voltage mutual inductor secondary side voltage are isolated,
Avoid non-homogeneous situation arranged side by side；
C）In the case of II busbar voltages are for I busbar voltages, when inlet wire B supplies whole transformer station load, 112 switches and segmentation are opened
It closes DL and is in conjunction position, 111 switches, which are in, divides position, and inlet wire A is hot stand-by duty；Under this kind of method of operation, if you need to electric by first
It presses mutual inductor, second voltage mutual inductor are secondary to realize function arranged side by side, only novel voltage parallel operation handle QK1 need to be switched to II
Busbar is connected for I busbar states, QK1 nodes 31-32, the first weight motor type relay J11, the second heavy motor type relay in voltage switching
J12, third weight motor type relay J13 coils power on, and the node respectively provided is closed, while operating handle QK1 in ac circuit
Node 25-26,27-28, the 29-30 conducting of offer, node 1-2,3-4,5-6,13-14,15-16,17-18 is disconnected, effective to incite somebody to action
First voltage mutual inductor and second voltage mutual inductor secondary side voltage are isolated, and non-homogeneous juxtaposed condition is equally avoided
Occur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541942.9A CN108767968A (en) | 2015-05-12 | 2015-05-12 | Voltage switches the application method of handle side by side |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541942.9A CN108767968A (en) | 2015-05-12 | 2015-05-12 | Voltage switches the application method of handle side by side |
| CN201510238642.XA CN104993572A (en) | 2015-05-12 | 2015-05-12 | Novel voltage paralleling switching handle and method for using same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510238642.XA Division CN104993572A (en) | 2015-05-12 | 2015-05-12 | Novel voltage paralleling switching handle and method for using same |
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| Publication Number | Publication Date |
|---|---|
| CN108767968A true CN108767968A (en) | 2018-11-06 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510238642.XA Pending CN104993572A (en) | 2015-05-12 | 2015-05-12 | Novel voltage paralleling switching handle and method for using same |
| CN201810541942.9A Withdrawn CN108767968A (en) | 2015-05-12 | 2015-05-12 | Voltage switches the application method of handle side by side |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510238642.XA Pending CN104993572A (en) | 2015-05-12 | 2015-05-12 | Novel voltage paralleling switching handle and method for using same |
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| CN (2) | CN104993572A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462170B (en) * | 2018-04-04 | 2021-05-14 | 国网福建省电力有限公司电力科学研究院 | Automatic voltage paralleling and switching control method for interval merging unit of intelligent substation |
| CN108695968B (en) * | 2018-06-19 | 2024-02-20 | 河南森源电气股份有限公司 | Bus PT parallel system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002369513A (en) * | 2001-06-08 | 2002-12-20 | Nichicon Corp | Switching power supply |
| CN102832693B (en) * | 2012-08-16 | 2015-04-15 | 华中科技大学 | Double-power automatic transfer switch device of one-way direct current power distribution grid |
| CN203632347U (en) * | 2013-11-08 | 2014-06-04 | 国家电网公司 | Double-bus voltage parallel switching device based on uninterrupted power supply |
-
2015
- 2015-05-12 CN CN201510238642.XA patent/CN104993572A/en active Pending
- 2015-05-12 CN CN201810541942.9A patent/CN108767968A/en not_active Withdrawn
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| CN104993572A (en) | 2015-10-21 |
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Application publication date: 20181106 |
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