CN204156596U - A kind of transforming plant DC power supply installed nearby - Google Patents
A kind of transforming plant DC power supply installed nearby Download PDFInfo
- Publication number
- CN204156596U CN204156596U CN201420138822.1U CN201420138822U CN204156596U CN 204156596 U CN204156596 U CN 204156596U CN 201420138822 U CN201420138822 U CN 201420138822U CN 204156596 U CN204156596 U CN 204156596U
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- power supply
- power
- cabinet
- transforming plant
- outdoor
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- 230000001131 transforming effect Effects 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 241000700159 Rattus Species 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000002253 acid Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical group [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Direct Current Feeding And Distribution (AREA)
Abstract
The utility model discloses a kind of transforming plant DC power supply installed nearby, comprise and be arranged at least two indoor DC power cabinet and be arranged at least two outdoor DC power cabinet; The input of each DC power cabinet is connected in parallel in external power source; Each is arranged at indoor DC power cabinet and is connected to an accumulator tank.The utility model breaks through the mode that original DC power supply installs power supply concentratedly; install nearby near load; coming into operation of continuous-current plant is installed nearby and can greatly reduces a cable of DC power supply in station; avoid DC power supply circuit to cause complex control system not protect or protection by mistake because of reason insulation reductions such as aging, damaged by rats, save cable copper loss.Thus greatly improve the direct current transformer station reliability of powering.The dispersion being realized DC power supply by this device is arranged nearby, reduces the construction area of transformer station, reduces transformer substation construction cycle and front current cost input.
Description
Technical field
The utility model relates to DC power supply field, is specifically related to a kind of transforming plant DC power supply installed nearby.
Background technology
In transformer station, power-supply system is divided into: AC power, DC power supply, ups power, communication power supply.Wherein, for the equipment of transformer station control, the DC energy source of the power supply such as Signal transmissions, protective device run, automatics and breaker mechanism is called DC power system.This system is a kind of direct current uninterruptible power system that can keep reliable power supply under various normal and accident condition.
At present, the battery of DC power system configuration is valve controlled sealed lead-acid accumulator or cadmium-nickel alkaline storage battery.The standard serviceability temperature scope of lead acid accumulator is-15 DEG C ~+45 DEG C.Test shows, the capacity decreased average of lead acid accumulator can be made to original about 1/3 when temperature is reduced to-40 DEG C from 27 DEG C, be greater than 40 DEG C, temperature often raises 10 DEG C, and battery life reduces by 1/2.Within the scope of+5 DEG C ~+30 DEG C, use battery life can be longer.The ambient temperature of substation operation code direct current component suggestion valve-type lead acid accumulator room should remain between (20 ~ 25) DEG C as far as possible.
China's transformer station direct current system at different levels principle is as follows:
110kV, 220kV transformer station direct current system adopts direct current system screen (cabinet) one-level supply power mode, and DC power cabinet is arranged on secondary device indoor, storage battery room disposed in the interior or storage battery dedicated; 500kV substation secondary device dispersed placement, direct current system should adopt main point electric screen (cabinet) two-stage supply power mode.Direct current is set in each relay little indoor and divides electric screen (cabinet); the load such as observing and controlling, protection, failure wave-recording, automatics, electric energy acquisition of each unit all draws from direct current split screen (cabinet) and connects; adopt radial supply power mode, storage battery room disposed in the interior or storage battery dedicated.
Because transforming plant DC power cabinet is arranged on secondary device room or each relay cell.DC power supply needed for Outdoor Trusses For Transformer Substation power distribution equipment, Intelligent component cabinet is all drawn from the DC power cabinet of each little indoor and is connect.Thereby increase DC power cable, add transformer station's copper loss cost, cable trough cost, cable construction cost.
Because 500kV substation secondary device load is large, according to the requirement of DL/T 5044-2004 " Desinging of direct current power system in electrical power engineering technical specification ", valve controlled sealed lead-acid accumulator capacity is greater than that more than 200Ah is appropriate to the occasion arranges special battery room, therefore independently battery room between all arranging 2 in 500kV transformer station.Battery room adds civil engineering cost, comprehensive land requisition index increases, and thereby increases the comprehensive cost cost of transformer station.Also can be excessively far away to DC power supply because of power consumption equipment in later stage use procedure, and increase the cost of investment of cable, and this mode easily makes system insulation decline because of other reasons, reduce the reliability of transforming plant protecting system works.
Summary of the invention:
The technical problems to be solved in the utility model is to provide a kind of transforming plant DC power supply installed nearby, by installing multiple DC power cabinet nearby near indoor and outdoors equipment, saving cable investment cost, improving the reliability of each work of transformer substation.
Being a kind of transforming plant DC power supply installed nearby to solve the problems of the technologies described above the technical solution of the utility model, comprising and be arranged at least two indoor DC power cabinet and be arranged at least two outdoor DC power cabinet; The input of each DC power cabinet is connected in parallel in external power source, and the output being arranged at indoor DC power cabinet connects and indoor electric load, and the output being arranged at outdoor DC power cabinet connects and outdoor use electric loading; Each is arranged at indoor DC power cabinet and is connected to an accumulator tank, is arranged at each outdoor DC power cabinet and is arranged at respectively within an outdoor convergence control cabinet.
Preferably, DC power cabinet comprises the power supply module of several parallel connection, the input of power supply module in parallel connects power supply, the output of power supply module in parallel is connected to same output bus, connected by current equalizer between each power supply module, export bus and connect Energy control bus by feeding out bus, Energy control bus is provided with and severally feeds out branch road for connection electric loading.
Preferably, the input of the power supply module of several parallel connection connects dual input power supply by exchanging inlet wire switch unit.
Preferably, the input of each power supply module is equipped with miniature circuit breaker, and current equalizer is provided with miniature circuit breaker, and each feeds out branch road and is equipped with miniature circuit breaker.
Preferably, Energy control bus is provided with insulating monitoring unit.
Preferably, Energy control bus is provided with switch measurement unit.
Preferably, outdoor convergence control cabinet housing at least is simultaneously provided with cool-heat-exchanger.
Preferably, also thermostat is provided with in outdoor convergence control cabinet.
Preferably, each DC power cabinet is connected to a total watch-dog, and total watch-dog is arranged at indoor.
The beneficial effects of the utility model are: break through the mode that original DC power supply installs power supply concentratedly; install nearby near load; coming into operation of continuous-current plant is installed nearby and can greatly reduces a cable of DC power supply in station; avoid DC power supply circuit to cause complex control system not protect because the reason insulation such as aging, damaged by rats reduce or the appearance of protection by mistake, save cable copper loss.Thus greatly improve the direct current transformer station reliability of powering.The dispersion being realized DC power supply by this device is arranged nearby, decreases the construction area of transformer station, reduces transformer substation construction cycle and front current cost input.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the utility model embodiment
Fig. 2 is the utility model embodiment DC power cabinet internal structure schematic diagram
Fig. 3 is the utility model embodiment outdoor convergence control cabinet external structure schematic diagram
In figure: 1, first DC power cabinet 2, second DC power cabinet 3, 3rd DC power cabinet 4, 4th DC power cabinet 5, outside 220V AC power 6, outdoor convergence control cabinet 7, power supply module 8, export bus 9, feed out bus 10, Energy control bus 11, exchange inlet wire switch unit 12, insulating monitoring unit 13, switch measurement unit 14, total watch-dog 15, first feeds out branch road 16, second feeds out branch road 17, cool-heat-exchanger 18, first indoor electric load 19, second indoor electric load 20, first outdoor use electric loading 21, second outdoor use electric loading
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
A kind of transforming plant DC power supply installed nearby of the present embodiment, go for 500kV or 220kV transformer station, comprise as shown in Figure 1 and be arranged at the first indoor DC power cabinet 1 and the second DC power cabinet 2, be arranged at outdoor at least the 3rd DC power cabinet 3 and the 4th DC power cabinet 4; The input of each DC power cabinet is connected in parallel in outside 220V AC power 5, be arranged at the first indoor DC power cabinet 1 and be connected the first indoor electric load 18 and the second indoor electric load 19 respectively with the output of the second DC power cabinet 2, be arranged at the 3rd outdoor DC power cabinet 3 and be connected the first outdoor use electric loading 20 and the second outdoor use electric loading 21 respectively with the output of the 4th DC power cabinet 4; The first DC power cabinet 1 and the second DC power cabinet 2 that are arranged at indoor are connected to an accumulator tank.
The first DC power cabinet 1 and the second DC power cabinet 2 that are arranged at indoor are arranged within transformer substation computer room, each relay cell of transformer station, power supply module 7 quantity that should install calculates with the DC load demand of be connected battery capacity according to each region, 500kV each relay cell DC load is about between 6000W ~ 9000W, also the high-frequency intelligent power supply module 7 of 7 2200W is configured, every block configuration 2 12V 150Ah analysing valve control type lead-acid accumulator batteries.
The 3rd DC power cabinet 3 and the 4th DC power cabinet 4 that are arranged at outdoor are arranged within an outdoor convergence control cabinet 6 respectively, wrapped up by outdoor convergence control cabinet 6, by outdoor convergence control cabinet 6, reasonably size, contour structures can reach better protection effect to DC power cabinet.As shown in Figure 3, the harmful substance materials such as what outdoor convergence control cabinet 6 casing of the present embodiment adopted is SMC glass fiber reinforced polyester fat material, not halogen-containing.There is insulation protection against electric shock, anti-corrosion, the feature such as attractive and durable, anticreep.A cabinet of outdoor convergence control cabinet 6 or cabinet door are provided with cool-heat-exchanger 17, convergence control cabinet 6 inside is provided with semiconductor temperature-control device out of doors, realize the regulating and controlling to temperature in casing, to realize the constant as far as possible requirement at 25 DEG C of outdoor power cabinet internal temperature, thermostat maximum service rating is 200W.
Four DC power cabinet are connected to a total watch-dog 14, and total watch-dog 14 is arranged at indoor.
As shown in Figure 2, DC power cabinet comprises the power supply module 7 of several parallel connection, the input of power supply module 7 in parallel exchanges inlet wire switch unit 11 by ATS and connects dual input power supply, the output of power supply module 7 in parallel is connected to same output bus 8, connected by current equalizer between each power supply module 7, realize direct voltage consistent, equalizing strip carries, export bus 8 and connect Energy control bus 10 by feeding out bus 9, Energy control bus 10 is provided with and severally feeds out branch road for connection electric loading, each feeds out on branch road and is respectively arranged with feeder switch, feed out branch road to draw from Energy control bus 10 and connect DC power supply for each outside electric loading.The input of each power supply module 7 is equipped with miniature circuit breaker, and current equalizer is provided with miniature circuit breaker, and each feeds out branch road and is equipped with miniature circuit breaker.The present embodiment is provided with first and feeds out branch road 15 and second and feed out branch road 16 two and feed out branch road, approximately can arrange 20 and feed out branch road in practice.
Energy control bus 10 is provided with insulating monitoring unit 12, insulating monitoring unit 12 major function is the state of insulation situation in order to monitor on direct current supply line, outgoing occurs the situation that state of insulation reduces, by timely alarm, and selects the circuit of insulation reduction.Reduce because of the impact of insulation reduction on Integrated Protection System.What the insulating monitoring unit 12 of the present embodiment adopted is Intelligent insulation resistance meter, and model is CY5000.
Energy control bus 10 is provided with switch measurement unit 13, and switching value monitoring means major function is realize feeding out switch, exchanging the malfunction monitoring of input switch, and as some switches break down tripping operation, information is uploaded to supervisory control system by it, and sends alarm.The switch measurement unit 13 DC switch amount comprehensive detection unit of the present embodiment, model is ADK PM6.
Power supply module 7 described in the present embodiment is high-frequency intelligent power supply module 7, and the maximum direct current of described high-frequency intelligent power supply module 7 exports as 2200W.Storage battery described in the present embodiment is nickel manganese cobalt acid lithium ternary material storage battery, is connected into one group forms by four nickel manganese cobalt acid lithium ternary material storage batterys.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (9)
1. the transforming plant DC power supply installed nearby, is characterized in that: comprise and be arranged at least two indoor DC power cabinet and be arranged at least two outdoor DC power cabinet; Described in each, the input of DC power cabinet is connected in parallel in external power source, and the output being arranged at indoor described DC power cabinet connects and indoor electric load, and the output being arranged at outdoor described DC power cabinet connects and outdoor use electric loading; Each is arranged at indoor described DC power cabinet and is connected to an accumulator tank, is arranged at DC power cabinet described in outdoor each and is arranged at respectively within an outdoor convergence control cabinet (6).
2. a kind of transforming plant DC power supply installed nearby according to claim 1, it is characterized in that: described DC power cabinet comprises the power supply module (7) of several parallel connection, the input of described power supply module (7) in parallel connects power supply, the output of described power supply module (7) in parallel is connected to same output bus (8), power supply module described in each is connected by current equalizer between (7), described output bus (8) connects Energy control bus (10) by feeding out bus (9), described Energy control bus (10) is provided with and severally feeds out branch road for connection electric loading.
3. a kind of transforming plant DC power supply installed nearby according to claim 2, is characterized in that: the input of the power supply module (7) of several parallel connection connects dual input power supply by exchanging inlet wire switch unit (11).
4. a kind of transforming plant DC power supply installed nearby according to claim 2, it is characterized in that: the input of each power supply module (7) is equipped with miniature circuit breaker, described current equalizer is provided with miniature circuit breaker, feeds out branch road and be equipped with miniature circuit breaker described in each.
5. a kind of transforming plant DC power supply installed nearby according to claim 2, is characterized in that: described Energy control bus (10) is provided with insulating monitoring unit (12).
6. a kind of transforming plant DC power supply installed nearby according to claim 2, is characterized in that: described Energy control bus (10) is provided with switch measurement unit (13).
7. a kind of transforming plant DC power supply installed nearby according to claim 1, is characterized in that: described outdoor convergence control cabinet (6) housing at least is simultaneously provided with cool-heat-exchanger (17).
8. a kind of transforming plant DC power supply installed nearby according to claim 1, is characterized in that: be also provided with thermostat in described outdoor convergence control cabinet (6).
9. a kind of transforming plant DC power supply installed nearby according to claim 1, it is characterized in that: DC power cabinet described in each is connected to a total watch-dog (14), described total watch-dog (14) is arranged at indoor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138822.1U CN204156596U (en) | 2014-03-26 | 2014-03-26 | A kind of transforming plant DC power supply installed nearby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138822.1U CN204156596U (en) | 2014-03-26 | 2014-03-26 | A kind of transforming plant DC power supply installed nearby |
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| Publication Number | Publication Date |
|---|---|
| CN204156596U true CN204156596U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138822.1U Expired - Lifetime CN204156596U (en) | 2014-03-26 | 2014-03-26 | A kind of transforming plant DC power supply installed nearby |
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| Country | Link |
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| CN (1) | CN204156596U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877315A (en) * | 2017-03-17 | 2017-06-20 | 桂林君泰福电气有限公司 | Distributed power supply-distribution system is pressed in being used in a kind of high-rise building |
| CN110571905A (en) * | 2019-09-06 | 2019-12-13 | 国网陕西省电力公司电力科学研究院 | Distributed direct-current backup power supply device for station and operation and installation method thereof |
-
2014
- 2014-03-26 CN CN201420138822.1U patent/CN204156596U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877315A (en) * | 2017-03-17 | 2017-06-20 | 桂林君泰福电气有限公司 | Distributed power supply-distribution system is pressed in being used in a kind of high-rise building |
| CN106877315B (en) * | 2017-03-17 | 2023-06-30 | 桂林君泰福电气有限公司 | Medium-voltage distributed power supply and distribution system for high-rise building |
| CN110571905A (en) * | 2019-09-06 | 2019-12-13 | 国网陕西省电力公司电力科学研究院 | Distributed direct-current backup power supply device for station and operation and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Co-patentee after: STATE GRID HUBEI ELECTRIC POWER Co. Patentee after: POWERCHINA HUBEI ELECTRIC ENGINEERING Corp.,Ltd. Co-patentee after: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. Address before: 430040 No. 1, Xinqiao four road, Jin Yin Hu Street, Dongxihu District, Wuhan, Wuhan, Hubei Co-patentee before: STATE GRID HUBEI ELECTRIC POWER Co. Patentee before: HUBEI ELECTRIC POWER SURVEY & DESIGN INSTITUTE Co-patentee before: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee after: Hubei Electric Power Planning, Design and Research Institute Co.,Ltd. Patentee after: STATE GRID HUBEI ELECTRIC POWER Co. Patentee after: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. Address before: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee before: POWERCHINA HUBEI ELECTRIC ENGINEERING Corp.,Ltd. Patentee before: STATE GRID HUBEI ELECTRIC POWER Co. Patentee before: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150211 |
|
| CX01 | Expiry of patent term |