CN204681091U - Novel voltage switches handle side by side - Google Patents
Novel voltage switches handle side by side Download PDFInfo
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- CN204681091U CN204681091U CN201520314358.1U CN201520314358U CN204681091U CN 204681091 U CN204681091 U CN 204681091U CN 201520314358 U CN201520314358 U CN 201520314358U CN 204681091 U CN204681091 U CN 204681091U
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- 238000002955 isolation Methods 0.000 claims abstract description 18
- 230000007935 neutral effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The utility model relates to a kind of novel voltage and switches handle side by side, its technical scheme is: be provided with voltage parallel device between I bus and II bus, first voltage transformer and the second voltage transformer are connected to the inner side of voltage parallel device, be connected with the second isolating switch by the first isolating switch between the positive pole of voltage parallel device voltage parallel device and negative pole, voltage parallel operation handle and the second heavy motor type relay is provided with between the first described isolating switch and the second isolating switch, voltage parallel operation handle is provided with many group nodes, both sides the first voltage transformer isolation switch in parallel and the second voltage transformer isolation switch respectively of voltage parallel operation handle, the heavy motor type relay of series connection first on the first described voltage transformer isolation switch, the triple motor type relay of series connection on second voltage transformer isolation switch, the beneficial effects of the utility model are: the generation and the development that prevent non-homogeneous phenomenon arranged side by side in voltage process arranged side by side, and the impact of restriction protection act exception and scope, improve the reliability of power supply.
Description
Technical field
The present invention relates to a kind of voltage switching device arranged side by side, particularly a kind of novel voltage switches handle side by side.
Background technology
Along with the fast development of national economy, the requirement of user to power supply quality is more and more higher, and the Socie-economic loss that unplanned power failure causes is increasing, proposes more and more higher requirement to the safe and stable operation of power supply unit.Due to the particularity of one or two operational modes and voltage switching circuit, in actual grid switching operation process, owing to frequently switching secondary voltage shunt circuit, often there is the phenomenon that voltage parallel device burns.And then cause corresponding protection, measurement, metering device decompression, cause protective device tripping, malfunction, affect safe operation of power system, even cause power system accident.
Existing voltage switches handle QK side by side two states: point (off-the-line), conjunction (side by side).This handle only acts in the DC control circuit of voltage parallel device, the secondary side voltage function arranged side by side of voltage transformer on two sections of buses can be realized, but due to corresponding alternating voltage secondary circuit in parallel operation effectively can not be isolated when it runs, as easy as rolling off a logly cause side by side non-homogeneous, burn voltage plug-in unit arranged side by side.
At present, in power department and electric power vocational school, do not have corresponding equipment can realize side by side simultaneously and isolate the function of non-homogeneous voltage circuit.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, provides a kind of novel voltage to switch handle side by side.
Its technical scheme is: be provided with voltage parallel device between I bus and II bus, first voltage transformer 1PT and the second voltage transformer 2PT is connected to the inner side of voltage parallel device, be connected with the second isolating switch 2GL by the first isolating switch 1GL between the positive pole K-2 of voltage parallel device voltage parallel device and negative pole K-4, the heavy motor type relay J12 of voltage parallel operation handle QK1 and second is provided with between the first described isolating switch 1GL and the second isolating switch 2GL, voltage parallel operation handle QK1 is provided with many group nodes, the both sides first voltage transformer isolation switch 1G in parallel and the second voltage transformer isolation switch 2G respectively of voltage parallel operation handle QK1, the heavy motor type relay J11 of series connection first on the first described voltage transformer isolation switch 1G, the triple motor type relay J13 of series connection on second voltage transformer isolation switch 2G.
7-8,31-32 node of shunt voltage parallel operation handle on described second heavy motor type relay J12; Voltage parallel operation handle QK1 node is connected in series respectively in three-phase circuit on described first heavy motor type relay J11,19-20,25-26 node of A circuitry phase shunt voltage parallel operation handle QK1,15-16,3-4 node of B circuitry phase shunt voltage parallel operation handle QK1,17-18,5-6 node of C circuitry phase shunt voltage parallel operation handle QK1, three-phase circuit is connected in series the normally opened contact of the first heavy motor type relay J11 and the normally opened contact of the second heavy motor type relay J12 respectively; Described triple motor type relay J13 is connected in series voltage parallel operation handle QK1 node in three-phase circuit respectively, 13-14,1-2 node of A circuitry phase shunt voltage parallel operation handle QK1,21-22,27-28 node of B circuitry phase shunt voltage parallel operation handle QK1,23-24,29-30 node of C circuitry phase shunt voltage parallel operation handle QK1, three-phase circuit is connected in series the normally opened contact of triple motor type relay J13 respectively, and on the first heavy motor type relay J11, three-phase circuit connects the three-phase circuit of triple motor type relay J13 respectively.
Described first heavy motor type relay J11 with triple motor type relay J13 is connected respectively voltage neutral point circuit N600.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is voltage parallel operation handle node connecting structure schematic diagrames of the second heavy motor type relay.
Accompanying drawing 3 is syndeton schematic diagrames of the first voltage transformer and the second voltage transformer.
In upper figure: A601 ~ C601 is the first voltage transformer secondary side induced voltage, A603 ~ C603 is the second voltage transformer secondary side induced voltage, A602 ~ C602 is the secondary side induced voltage of the first voltage transformer after isolating switch switches, A604 ~ C604 is the secondary side induced voltage of the second voltage transformer after isolating switch switches, A630I ~ C630I switches the I busbar voltage after handle conversion side by side through voltage, A640I ~ C640I switches the II busbar voltage after handle conversion side by side through voltage, N600 is voltage neutral point circuit, first heavy motor type relay J11, second heavy motor type relay J12, triple motor type relay J13, K-2 is voltage parallel device positive pole, K-4 is voltage parallel device negative pole, first voltage transformer isolation switch 1G and the second voltage transformer isolation switch 2G, first isolating switch 1GL and the second isolating switch 2GL.
Embodiment
1-3 by reference to the accompanying drawings, the invention will be further described:
Technical scheme of the present invention for be provided with voltage parallel device between I bus and II bus, first voltage transformer 1PT and the second voltage transformer 2PT is connected to the inner side of voltage parallel device, be connected with the second isolating switch 2GL by the first isolating switch 1GL between the positive pole K-2 of voltage parallel device voltage parallel device and negative pole K-4, the heavy motor type relay J12 of voltage parallel operation handle QK1 and second is provided with between the first described isolating switch 1GL and the second isolating switch 2GL, voltage parallel operation handle QK1 is provided with many group nodes, the both sides first voltage transformer isolation switch 1G in parallel and the second voltage transformer isolation switch 2G respectively of voltage parallel operation handle QK1, the heavy motor type relay J11 of series connection first on the first described voltage transformer isolation switch 1G, the triple motor type relay J13 of series connection on second voltage transformer isolation switch 2G.
7-8,31-32 node of shunt voltage parallel operation handle on described second heavy motor type relay J12; Voltage parallel operation handle QK1 node is connected in series respectively in three-phase circuit on described first heavy motor type relay J11,19-20,25-26 node of A circuitry phase shunt voltage parallel operation handle QK1,15-16,3-4 node of B circuitry phase shunt voltage parallel operation handle QK1,17-18,5-6 node of C circuitry phase shunt voltage parallel operation handle QK1, three-phase circuit is connected in series the normally opened contact of the first heavy motor type relay J11 and the normally opened contact of the second heavy motor type relay J12 respectively; Described triple motor type relay J13 is connected in series voltage parallel operation handle QK1 node in three-phase circuit respectively, 13-14,1-2 node of A circuitry phase shunt voltage parallel operation handle QK1,21-22,27-28 node of B circuitry phase shunt voltage parallel operation handle QK1,23-24,29-30 node of C circuitry phase shunt voltage parallel operation handle QK1, three-phase circuit is connected in series the normally opened contact of triple motor type relay J13 respectively, and on the first heavy motor type relay J11, three-phase circuit connects the three-phase circuit of triple motor type relay J13 respectively.
Described first heavy motor type relay J11 with triple motor type relay J13 is connected respectively voltage neutral point circuit N600.
Operation principle:
In " off-the-line " situation, in voltage secondary circuit arranged side by side, 13-14,15-16 on QK1 novel voltage parallel operation handle, 17-18,19-20,21-22,23-24 node is connected, secondary voltage now from the first voltage transformer, the second voltage transformer side is connected to each section of voltage bus through QK1 node, therebetween without any electrical link, perfect buffer action can be realized to alternating voltage, meet the requirement of fanout operation mode simultaneously, in " I busbar voltage is for II busbar voltage " situation, when inlet wire A 111 supplies whole transformer station's load, 111 switches and segmentation 100 switch are in co-bit, 112 switches are in a point position, inlet wire B is hot stand-by duty, under this kind of operational mode, need by the first voltage transformer, second voltage transformer secondary realizes meeting dead section bus interval protection needs side by side, voltage parallel operation handle QK1 is switched to I bus for II bus state, QK1 node 7-8 connects, first heavy motor type relay J11 in voltage switching, second heavy motor type relay J12, the coil of triple motor type relay J13 powers on, its node provided separately closes, the node 1-2 that in ac circuit, operating handle QK1 provides simultaneously, 3-4, 5-6 conducting, node 19-20, 21-22, 23-24, 25-26, 27-28, 29-30 disconnects, effectively the first voltage transformer and the second voltage transformer secondary side voltage are isolated, avoid non-homogeneous situation arranged side by side, in " II busbar voltage is for I busbar voltage " situation, when inlet wire B 112 supplies whole transformer station's load, 112 switches and segmentation 100 switch are in co-bit, and 111 switches are in a point position, inlet wire A hot stand-by duty.Under this kind of operational mode, as need by the first voltage transformer, second voltage transformer secondary realizes function arranged side by side, only novel voltage parallel operation handle QK1 need be switched to II bus for I bus state, QK1 node 31-32 connects, first heavy motor type relay J11 in voltage switching, second heavy motor type relay J12, triple motor type relay J13 coil powers on, its node provided separately closes, the node 25-26 that in ac circuit, operating handle QK1 provides simultaneously, 27-28, 29-30 conducting, node 1-2, 3-4, 5-6, 13-14, 15-16, 17-18 disconnects, effectively the first voltage transformer and the second voltage transformer secondary side voltage are isolated, avoid the generation of non-homogeneous juxtaposed condition equally.
Claims (3)
1. a novel voltage switches handle side by side, it is characterized in that: between I bus and II bus, be provided with voltage parallel device, first voltage transformer 1PT and the second voltage transformer 2PT is connected to the inner side of voltage parallel device, be connected with the second isolating switch 2GL by the first isolating switch 1GL between the positive pole K-2 of voltage parallel device voltage parallel device and negative pole K-4, the heavy motor type relay J12 of voltage parallel operation handle QK1 and second is provided with between the first described isolating switch 1GL and the second isolating switch 2GL, voltage parallel operation handle QK1 is provided with many group nodes, the both sides first voltage transformer isolation switch 1G in parallel and the second voltage transformer isolation switch 2G respectively of voltage parallel operation handle QK1, the heavy motor type relay J11 of series connection first on the first described voltage transformer isolation switch 1G, the triple motor type relay J13 of series connection on second voltage transformer isolation switch 2G.
2. a kind of novel voltage according to claim 1 switches handle side by side, it is characterized in that: 7-8,31-32 node of shunt voltage parallel operation handle on the described second heavy motor type relay J12; Voltage parallel operation handle QK1 node is connected in series respectively in three-phase circuit on described first heavy motor type relay J11,19-20,25-26 node of A circuitry phase shunt voltage parallel operation handle QK1,15-16,3-4 node of B circuitry phase shunt voltage parallel operation handle QK1,17-18,5-6 node of C circuitry phase shunt voltage parallel operation handle QK1, three-phase circuit is connected in series the normally opened contact of the first heavy motor type relay J11 and the normally opened contact of the second heavy motor type relay J12 respectively; Described triple motor type relay J13 is connected in series voltage parallel operation handle QK1 node in three-phase circuit respectively, 13-14,1-2 node of A circuitry phase shunt voltage parallel operation handle QK1,21-22,27-28 node of B circuitry phase shunt voltage parallel operation handle QK1,23-24,29-30 node of C circuitry phase shunt voltage parallel operation handle QK1, three-phase circuit is connected in series the normally opened contact of triple motor type relay J13 respectively, and on the first heavy motor type relay J11, three-phase circuit connects the three-phase circuit of triple motor type relay J13 respectively.
3. a kind of novel voltage according to claim 2 switches handle side by side, it is characterized in that: the first heavy motor type relay J11 with triple motor type relay J13 is connected respectively voltage neutral point circuit N600.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520314358.1U CN204681091U (en) | 2015-05-15 | 2015-05-15 | Novel voltage switches handle side by side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520314358.1U CN204681091U (en) | 2015-05-15 | 2015-05-15 | Novel voltage switches handle side by side |
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| Publication Number | Publication Date |
|---|---|
| CN204681091U true CN204681091U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520314358.1U Expired - Fee Related CN204681091U (en) | 2015-05-15 | 2015-05-15 | Novel voltage switches handle side by side |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445187A (en) * | 2019-08-14 | 2019-11-12 | 北京机械设备研究所 | A kind of and machine interlocking control circuit and simultaneously machine interlock system |
-
2015
- 2015-05-15 CN CN201520314358.1U patent/CN204681091U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445187A (en) * | 2019-08-14 | 2019-11-12 | 北京机械设备研究所 | A kind of and machine interlocking control circuit and simultaneously machine interlock system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160515 |