CN104734027A - Method for preventing mistaken power transmission of 35 kV transformer substation - Google Patents
Method for preventing mistaken power transmission of 35 kV transformer substation Download PDFInfo
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- CN104734027A CN104734027A CN201510022120.6A CN201510022120A CN104734027A CN 104734027 A CN104734027 A CN 104734027A CN 201510022120 A CN201510022120 A CN 201510022120A CN 104734027 A CN104734027 A CN 104734027A
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- pin
- access
- plc
- making war
- incoming line
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
Abstract
The invention discloses a method for preventing mistaken power transmission of a 35 kV transformer substation. The method includes the following steps that first, a segmentation switch cabinet 400 in a 35 kV high-voltage cabinet and a switching switch cabinet 4002 are mechanically locked; second, a Mitsubishi FX2N series PLC and a plurality of intermediate relays are adopted for electrically locking the segmentation switch cabinet 400 in the 35 kV high-voltage cabinet, a number one bus incoming cabinet 451 and a number two bus incoming cabinet 452; third, a Mitsubishi FX2N series PLC and a plurality of intermediate relays are adopted for electrically locking a segmentation switch cabinet 800 in a 10 kV high-voltage cabinet, a number one wire incoming cabinet 801 and a number two wire incoming cabinet 802. According to the scheme, the Mitsubishi FX2N series PLCs and the relays are adopted so that power can be supplied to a number one bus and a number two bus separately, and therefore the problems that because in an existing 35 kV transformer substation, phase differences exist in two lines, power transmission cannot be performed at the same time, and power failure is caused by mistaken power transmission are solved. The method is reliable, safe and convenient to popularize.
Description
Technical field
The invention belongs to power matching network field, particularly a kind of method preventing misdelivery electricity of 35kV transformer station.
Background technology
At present, there is two-way inlet wire and have phase difference in domestic transformer station mostly, when fall electricity operation time two-way inlet wire can not power transmission simultaneously, cause transformer station's short time to have a power failure, the time is longer sometimes, causes power supply unreliable, can affect production, safety.
Summary of the invention
The object of the present invention is to provide in a kind of 35kV transformer station and prevent electric method of misdelivering, occur misdelivery electricity, insecure problem of powering to solve transformer station in prior art.
35kV transformer station of the present invention prevents electric method of misdelivering, and comprises the steps:
1) mechanical latching is done to segmentation 400 switch cubicle in 35kV high-voltage board and back brake 4002 switch cubicle;
2) electric blocking is done to segmentation 400 switch cubicle in 35kV high-voltage board, No. 1 bus incoming line cabinet 451 and No. 2 bus incoming line cabinets 452:
1. by the X001 pin of the normal access mitsubishi FX2N series of PLC of making war of disconnection switch upper in No. 1 bus incoming line cabinet 451, the X003 pin of the normal above-mentioned PLC of access of making war of lower disconnection switch, the X002 pin of the normal above-mentioned PLC of access of making war of auxiliary contacts of circuit breaker;
2. by the X012 pin of the normal above-mentioned PLC of access of making war of disconnection switch upper in No. 2 bus incoming line cabinets 452, the X011 pin of the normal above-mentioned PLC of access of making war of lower disconnection switch, the X007 pin of the normal above-mentioned PLC of access of making war of auxiliary contacts of circuit breaker;
3. by the X004 pin of the normal above-mentioned PLC of access of making war of disconnection switch upper in segmentation 400 switch cubicle, the X006 pin of the normal above-mentioned PLC of access of making war of lower disconnection switch, the X005 pin of the normal above-mentioned PLC of access of making war of auxiliary contacts of circuit breaker;
4. the Y001 pin of above-mentioned PLC connects the coil-end of the first auxiliary relay, the closing circuit of tip side series connection access No. 2 bus incoming line cabinet 452 circuit breakers of the first auxiliary relay, Y002 pin connects the coil-end of the second auxiliary relay, the closing circuit of tip side series connection access segmentation 400 breaker of switch cabinet of the second auxiliary relay, Y003 pin connects the coil-end of the 3rd auxiliary relay, the closing circuit of tip side series connection access No. 1 bus incoming line cabinet 451 circuit breaker of the 3rd auxiliary relay;
3) electric blocking is done to segmentation 800 switch cubicle in 10kV high-voltage board, Line 1 incoming line cabinet 801 and No. 2 line incoming line cabinets 802:
1. by the X014 pin of the normal above-mentioned PLC of access of making war of disconnection switch upper in Line 1 incoming line cabinet 801, the X016 pin of the normal above-mentioned PLC of access of making war of lower disconnection switch, the X015 pin of the normal above-mentioned PLC of access of making war of auxiliary contacts of circuit breaker;
2. by the X017 pin of the normal above-mentioned PLC of access of making war of disconnection switch upper in segmentation 800 switch cubicle, the X020 pin of the normal above-mentioned PLC of access of making war of lower disconnection switch, the X027 pin of the normal above-mentioned PLC of access of making war of auxiliary contacts of circuit breaker;
3. by the X022 pin of the normal above-mentioned PLC of access of making war of disconnection switch upper in No. 2 line incoming line cabinets 802, the X021 pin of the normal above-mentioned PLC of access of making war of lower disconnection switch, the X023 pin of the normal above-mentioned PLC of access of making war of auxiliary contacts of circuit breaker;
4. the Y006 pin of above-mentioned PLC connects the coil-end of the 4th auxiliary relay, the closing circuit of tip side series connection access No. 2 line incoming line cabinet 802 circuit breakers of the 4th auxiliary relay, Y007 pin connects the coil-end of the 5th auxiliary relay, the closing circuit of tip side series connection access segmentation 800 breaker of switch cabinet of the 5th auxiliary relay, Y011 pin connects the coil-end of the 6th auxiliary relay, the closing circuit of tip side series connection access Line 1 incoming line cabinet 801 circuit breaker of the 6th auxiliary relay.
Method of the present invention adopts mitsubishi FX2N series of PLC, its X001, the break-make of X002 and X003 pins in parallel control PLC assistance contacor M71, X007, X011 and X012 pins in parallel controls the break-make of auxiliary relay M73, X004, X005 and X006 pins in parallel controls the break-make of auxiliary relay M72, X014, X015 and X016 pins in parallel controls the break-make of auxiliary relay M74, X017, X020 and X027 pins in parallel controls the break-make of auxiliary relay M75, X021, X022 and X023 pins in parallel controls the break-make of auxiliary relay M76, auxiliary relay M71 and M72 connects and controls the output of pin Y001, M71 and M73 series connection controls the output of pin Y002, M73 and M72 series connection controls the output of pin Y003, M74 and M75 series connection controls the output of pin Y006, M74 and M76 series connection controls the output of pin Y007, M75 and M76 series connection controls the output of pin Y011.
In 35kV high-voltage board, when No. 1 bus incoming line cabinet 451 and segmentation 400 switch cubicle close a floodgate simultaneously, then M71 and M72 must conduct, and PLC output pin Y001 obtains electric, first auxiliary relay KM1 is closed, thus connects the closing circuit of No. 2 bus incoming line cabinet 452 circuit breakers; When No. 2 bus incoming line cabinets 452 and No. 1 bus incoming line cabinet 451 close a floodgate simultaneously, M71 and M73 must conduct, and PLC output pin Y002 obtains electric, and the second auxiliary relay KM2 is closed, thus connects the closing circuit of segmentation 400 breaker of switch cabinet; When No. 2 bus incoming line cabinets 452 and segmentation 400 switch cubicle close a floodgate simultaneously, M73 and M72 must conduct, and PLC output pin Y003 obtains electric, and the 3rd auxiliary relay KM3 is closed, thus connects the closing circuit of No. 1 bus incoming line cabinet 451 circuit breaker; For 10kV high-voltage board, its principle is the same.
Beneficial effect of the present invention is: the present invention adopts mitsubishi FX2N series of PLC and Control can realize No. 1 bus and No. 2 buses two circuits separately power supply in transformer station, thus solve in existing 35kV transformer station due to there is phase difference in two circuits can not simultaneously power transmission, and the problem of power failure is caused because misdelivering electricity, method of the present invention is reliable, safety, is convenient to promote.
Accompanying drawing explanation
Fig. 1 is wiring schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
With reference to Fig. 1,35kV transformer station of the present invention prevents electric method of misdelivering, and comprises the steps:
1) mechanical latching is done to segmentation 400 switch cubicle in 35kV high-voltage board and back brake 4002 switch cubicle: namely upper lock management is carried out to it.
2) do electric blocking to 2, No. 1 bus incoming line cabinet 451 1 of segmentation 400 switch cubicle in 35kV high-voltage board and No. 2 bus incoming line cabinets 452 3, concrete grammar is as follows:
1. by the X001 pin of the normal access mitsubishi FX2N series of PLC 7 of making war of disconnection switch S1 upper in No. 1 bus incoming line cabinet 451 1, the X003 pin of the normal above-mentioned mitsubishi FX2N series of PLC 7 of access of making war of lower disconnection switch S3, the X002 pin of the normal above-mentioned PLC 7 of access of making war of auxiliary contacts of circuit breaker S2;
2. by the X012 pin of the normal above-mentioned PLC 7 of access of making war of disconnection switch S9 upper in No. 2 bus incoming line cabinets 452 3, the X011 pin of the normal above-mentioned PLC 7 of access of making war of lower disconnection switch S8, the X007 pin of the normal above-mentioned PLC 7 of access of making war of auxiliary contacts of circuit breaker S7;
3. by the X004 pin of the normal above-mentioned PLC 7 of access of making war of disconnection switch S4 upper in segmentation 400 switch cubicle 2, the X006 pin of the normal above-mentioned PLC 7 of access of making war of lower disconnection switch S6, the X005 pin of the normal above-mentioned PLC 7 of access of making war of auxiliary contacts of circuit breaker S5;
4. the Y001 pin of above-mentioned PLC 7 connects the coil-end of the first auxiliary relay KM1, the closing circuit of tip side series connection access No. 2 bus incoming line cabinet 452 3 circuit breakers of the first auxiliary relay KM1, Y002 pin connects the coil-end of the second auxiliary relay KM2, the closing circuit of tip side series connection access segmentation 400 switch cubicle 2 circuit breaker of the second auxiliary relay KM2, Y003 pin connects the coil-end of the 3rd auxiliary relay KM3, the closing circuit of tip side series connection access No. 1 bus incoming line cabinet 451 1 circuit breaker of the 3rd auxiliary relay KM3;
When No. 1 bus incoming line cabinet 451 and segmentation 400 switch cubicle close a floodgate simultaneously, then PLC assistance contacor M71 and M72 must conduct, PLC output pin Y001 obtains electric, and the first auxiliary relay KM1 is closed, thus connects the closing circuit of No. 2 bus incoming line cabinet 452 circuit breakers; When No. 2 bus incoming line cabinets 452 and No. 1 bus incoming line cabinet 451 close a floodgate simultaneously, PLC assistance contacor M71 and M73 must conduct, PLC output pin Y002 obtains electric, and the second auxiliary relay KM2 is closed, thus connects the closing circuit of segmentation 400 breaker of switch cabinet; When No. 2 bus incoming line cabinets 452 and segmentation 400 switch cubicle close a floodgate simultaneously, PLC assistance contacor M73 and M72 must conduct, PLC output pin Y003 obtains electric, and the 3rd auxiliary relay KM3 is closed, thus connects the closing circuit of No. 1 bus incoming line cabinet 451 circuit breaker;
3) electric blocking is done to segmentation 800 switch cubicle 5 in 10kV high-voltage board, Line 1 incoming line cabinet 801 4 and No. 2 line incoming line cabinets 802 6:
1. by the X014 pin of the normal above-mentioned PLC 7 of access of making war of disconnection switch S10 upper in Line 1 incoming line cabinet 801 4, the X016 pin of the normal above-mentioned PLC 7 of access of making war of lower disconnection switch S12, the X015 pin of the normal above-mentioned PLC 7 of access of making war of auxiliary contacts of circuit breaker S11;
2. by the X017 pin of the normal above-mentioned PLC 7 of access of making war of disconnection switch S13 upper in segmentation 800 switch cubicle 5, the X020 pin of the normal above-mentioned PLC 7 of access of making war of lower disconnection switch S14, the X027 pin of the normal above-mentioned PLC 7 of access of making war of auxiliary contacts of circuit breaker S15;
3. by the X022 pin of the normal above-mentioned PLC 7 of access of making war of disconnection switch S17 upper in No. 2 line incoming line cabinets 802 6, the X021 pin of the normal above-mentioned PLC 7 of access of making war of lower disconnection switch S16, the X023 pin of the normal above-mentioned PLC 7 of access of making war of auxiliary contacts of circuit breaker S18;
4. the Y006 pin of above-mentioned PLC connects the coil-end of the 4th auxiliary relay KM4, the closing circuit of tip side series connection access No. 2 line incoming line cabinet 802 6 circuit breakers of the 4th auxiliary relay KM4, Y007 pin connects the coil-end of the 5th auxiliary relay KM5, the closing circuit of tip side series connection access segmentation 800 switch cubicle 5 circuit breaker of the 5th auxiliary relay KM5, Y011 pin connects the coil-end of the 6th auxiliary relay KM6, the closing circuit of tip side series connection access Line 1 incoming line cabinet 801 4 circuit breaker of the 6th auxiliary relay KM6.
When Line 1 incoming line cabinet 801 and segmentation 800 switch cubicle close a floodgate simultaneously, then PLC assistance contacor M74 and M75 must conduct, PLC output pin Y006 obtains electric, and the first auxiliary relay KM4 is closed, thus connects the closing circuit of No. 2 line incoming line cabinet 802 circuit breakers; When No. 2 line incoming line cabinets 802 and Line 1 incoming line cabinet 801 close a floodgate simultaneously, PLC assistance contacor M74 and M76 must conduct, PLC output pin Y007 obtains electric, and the second auxiliary relay KM5 is closed, thus connects the closing circuit of segmentation 800 breaker of switch cabinet; When No. 2 line incoming line cabinets 802 and segmentation 800 switch cubicle close a floodgate simultaneously, PLC assistance contacor M76 and M75 must conduct, PLC output pin Y011 obtains electric, and the 3rd auxiliary relay KM6 is closed, thus connects the closing circuit of Line 1 incoming line cabinet 801 circuit breaker.
Claims (1)
1.35kV transformer station prevents electric method of misdelivering, and it is characterized in that comprising the steps:
1) mechanical latching is done to segmentation 400 switch cubicle in 35kV high-voltage board and back brake 4002 switch cubicle;
2) to segmentation 400 switch cubicle (2) in 35kV high-voltage board, No. 1 bus incoming line cabinet 451(1) and No. 2 bus incoming line cabinet 452(3) do electric blocking:
1. by No. 1 bus incoming line cabinet 451(1) in the X001 pin of normal access mitsubishi FX2N series of PLC (7) of making war of upper disconnection switch (S1), the X003 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of lower disconnection switch (S3), the X002 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of auxiliary contacts of circuit breaker (S2);
2. by No. 2 bus incoming line cabinet 452(3) in the X012 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of upper disconnection switch (S9), the X011 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of lower disconnection switch (S8), the X007 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of auxiliary contacts of circuit breaker (S7);
3. by the X004 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of disconnection switch (S4) upper in segmentation 400 switch cubicle (2), the X006 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of lower disconnection switch (S6), the X005 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of auxiliary contacts of circuit breaker (S5);
4. the Y001 pin of above-mentioned mitsubishi FX2N series of PLC (7) connects the coil-end of the first auxiliary relay (KM1), tip side series connection access No. 2 bus incoming line cabinet 452(3 of first auxiliary relay (KM1)) closing circuit of circuit breaker, Y002 pin connects the coil-end of the second auxiliary relay (KM2), the closing circuit of tip side series connection access segmentation 400 switch cubicle (2) circuit breaker of the second auxiliary relay (KM2), Y003 pin connects the coil-end of the 3rd auxiliary relay (KM3), tip side series connection access No. 1 bus incoming line cabinet 451(1 of 3rd auxiliary relay (KM3)) closing circuit of circuit breaker,
3) to segmentation 800 switch cubicle (5) in 10kV high-voltage board, Line 1 incoming line cabinet 801(4) and No. 2 line incoming line cabinet 802(6) do electric blocking:
1. by Line 1 incoming line cabinet 801(4) in the X014 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of upper disconnection switch (S10), the X016 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of lower disconnection switch (S12), the X015 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of auxiliary contacts of circuit breaker (S11);
2. by the X017 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of disconnection switch (S13) upper in segmentation 800 switch cubicle (5), the X020 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of lower disconnection switch (S14), the X027 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of auxiliary contacts of circuit breaker (S15);
3. by No. 2 line incoming line cabinet 802(6) in the X022 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of upper disconnection switch (S17), the X021 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of lower disconnection switch (S16), the X023 pin of the normal above-mentioned mitsubishi FX2N series of PLC (7) of access of making war of auxiliary contacts of circuit breaker (S18);
4. the Y006 pin of above-mentioned mitsubishi FX2N series of PLC (7) connects the coil-end of the 4th auxiliary relay (KM4), tip side series connection access No. 2 line incoming line cabinet 802(6 of 4th auxiliary relay (KM4)) closing circuit of circuit breaker, Y007 pin connects the coil-end of the 5th auxiliary relay (KM5), the closing circuit of tip side series connection access segmentation 800 switch cubicle (5) circuit breaker of the 5th auxiliary relay (KM5), Y011 pin connects the coil-end of the 6th auxiliary relay (KM6), the tip side series connection access Line 1 incoming line cabinet 801(4 of the 6th auxiliary relay (KM6)) closing circuit of circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022120.6A CN104734027B (en) | 2015-01-16 | 2015-01-16 | Method for preventing mistaken power transmission of 35 kV transformer substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022120.6A CN104734027B (en) | 2015-01-16 | 2015-01-16 | Method for preventing mistaken power transmission of 35 kV transformer substation |
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| CN104734027A true CN104734027A (en) | 2015-06-24 |
| CN104734027B CN104734027B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510022120.6A Active CN104734027B (en) | 2015-01-16 | 2015-01-16 | Method for preventing mistaken power transmission of 35 kV transformer substation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621805A (en) * | 2017-09-30 | 2018-01-23 | 国网黑龙江省电力有限公司黑河供电公司 | Electric substation's uniline anti-misoperation system |
| CN115001133B (en) * | 2022-04-21 | 2024-04-23 | 北京南凯自动化系统工程有限公司 | Intelligent power-off and power-on switching operation method and system in traction power supply system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5262679A (en) * | 1991-07-29 | 1993-11-16 | Schweitzer Engineering Laboratories, Inc. | Polarizing potential transfer switch circuit for use with power transmission lines |
| CN201075586Y (en) * | 2007-07-27 | 2008-06-18 | 泰豪科技股份有限公司 | Low-voltage distribution operating controller |
| CN102891440A (en) * | 2012-08-15 | 2013-01-23 | 徐州新电高科电气有限公司 | Lock-type low-voltage cabinet |
| CN103840380A (en) * | 2014-03-31 | 2014-06-04 | 国网上海市电力公司 | PT2 type power distribution station |
-
2015
- 2015-01-16 CN CN201510022120.6A patent/CN104734027B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5262679A (en) * | 1991-07-29 | 1993-11-16 | Schweitzer Engineering Laboratories, Inc. | Polarizing potential transfer switch circuit for use with power transmission lines |
| CN201075586Y (en) * | 2007-07-27 | 2008-06-18 | 泰豪科技股份有限公司 | Low-voltage distribution operating controller |
| CN102891440A (en) * | 2012-08-15 | 2013-01-23 | 徐州新电高科电气有限公司 | Lock-type low-voltage cabinet |
| CN103840380A (en) * | 2014-03-31 | 2014-06-04 | 国网上海市电力公司 | PT2 type power distribution station |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621805A (en) * | 2017-09-30 | 2018-01-23 | 国网黑龙江省电力有限公司黑河供电公司 | Electric substation's uniline anti-misoperation system |
| CN115001133B (en) * | 2022-04-21 | 2024-04-23 | 北京南凯自动化系统工程有限公司 | Intelligent power-off and power-on switching operation method and system in traction power supply system |
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| Publication number | Publication date |
|---|---|
| CN104734027B (en) | 2017-04-12 |
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