CN203691053U - High-risk power consumption user emergency power supply connection structure - Google Patents
High-risk power consumption user emergency power supply connection structure Download PDFInfo
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- CN203691053U CN203691053U CN201420052636.6U CN201420052636U CN203691053U CN 203691053 U CN203691053 U CN 203691053U CN 201420052636 U CN201420052636 U CN 201420052636U CN 203691053 U CN203691053 U CN 203691053U
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- 230000005611 electricity Effects 0.000 claims description 17
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Abstract
The utility model discloses a high-risk power consumption user emergency power supply connection structure, and belongs to an emergency protective circuit device. The connection structure comprises a series of bus units in series. Each bus unit comprises a bus and more than two load units. Each load unit comprises a power load device and a step-down transformer. The bus unit also comprises an emergency power supply device. The emergency power supply device is composed of a step-up transformer and a generator. The generator is connected with the bus through the step-up transformer. The generators of all the bus units are arranged in the same transformer station. The connection structure integrates original emergency power supply power supply devices which are distributed dispersedly, and thus the emergency power supply control mode is flexible. The connection structure can achieve direct power supply of the generators to the buses, the buses distribute power to important loads reasonably, thus the generator of each load device is standby for each other, the number of the generators is decreased, the cost is lowered, the starting time of the generators is shortened, and power supply reliability of an emergency power supply is raised.
Description
Technical field
The utility model belongs to emergency protection circuit device for electric.
Background technology
At present, existing transformer station median generatrix connected mode is: multiple bus units are together in series, each bus unit comprises a bus and some load cell, and load cell is made up of electric load equipment and step-down transformer, and electric load equipment is connected with step-down transformer.These load cell access bus with parallel form, and load cell is arranged in parallel between bus and ground wire, and bus unit bus is separately in series by mother, and each bus is positioned at same transformer station.Concrete type of attachment as shown in Figure 1.Figure 1 shows that the connection diagram of two bus units.In each bus unit, be connected with three load cell, be that bus I unit comprises load Unit 1, load Unit 2, load Unit 3, the Unit 1 of loading comprises that the load 1 that is in series and step-down transformer 1, load Unit 2 comprise the load 2 and the step-down transformer 2 that are in series, and load Unit 3 comprise the load 3 and the step-down transformer 3 that are in series; Bus II unit comprises load Unit 4, load Unit 5, load Unit 6, the Unit 4 of loading comprise that the load 4 that is in series and step-down transformer 4, load Unit 5 comprise the load 5 and the step-down transformer 5 that are in series, and load Unit 6 comprise the load 6 and the step-down transformer 6 that are in series.These electric load equipment are divided into a stage load, two stage loads, three stage loads according to power supply reliability and interruption of power supply in loss or effect political, that caused economically.In some electricity consumption users, there are some high-risk electricity consumption users, some important load equipment of this type of user can not power-off, otherwise will produce great politics, economic accident, for example, lift in coal mine, gas checkout equipment, transport hub equipment etc., these important load equipment some be a stage load as mine lift, gas checkout equipment etc., some is that two stage loads are as transport hub equipment etc.For avoiding the generation of accident, improve power supply reliability, locate all to have emergency generator (generator 1 and generator 2) at important load (load 3 and load 6).Once circuit is out of joint, emergency generator is just for these important load power supplies, to guarantee electric power continuous supply so.Supply power mode is in the past, generator 1 and generator 2 are directly to loading 3 and load 6 power supplies.But the shortcoming of this syndeton is: if generator 1 or 2 breaks down, can cause important load because causing a serious accident without emergency power supply; And each important load will be equipped with a generator, investment is large, and generator utilance is low; Generator configuration is disperseed, and malfunction, has extended the emergency disposal time.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high-risk electricity consumption user emergency service syndeton, by the unified integration of user's house generator, concentrate and lay, by the reasonable distribution of switchgear house bus, be transported to each important load, improve high-risk electricity consumption user's emergency service reliability.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of high-risk electricity consumption user emergency service syndeton, comprise the bus unit of a series of series connection, described bus unit comprises bus and more than two load cell, described load cell comprises electric load equipment and step-down transformer, described Emergency power supply unit is made up of step-up transformer and generator, and generator accesses bus via step-up transformer; The generator of each bus unit is arranged in same transformer station.
The rated voltage that the bus of described bus unit carries is: 10kV or 35kV.
Described electric load equipment comprises: a stage load, two stage loads, three stage loads.
The beneficial effect that adopts technique scheme to produce is: syndeton of the present utility model can realize unified integration by the Emergency power supply unit that originally disperses to distribute, and concentrates and lays, and makes emergency service control mode more flexible; And the load cell that this structure can realize same bus unit shares Emergency power supply unit, the Emergency power supply unit of adjacent two bus units is for subsequent use each other, greatly reduced the quantity of generator compared with existing structure, improve generator utilance, reduce the maintenance cost of system, directly shorten emergency service start-up time, improved the emergency service reliability of system.
Accompanying drawing explanation
Fig. 1 is the syndeton schematic diagram of original bus unit;
Fig. 2 is syndeton schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2, a kind of high-risk electricity consumption user emergency service syndeton, comprises bus unit-bus I unit, the bus II unit of two series connection.Bus unit comprises a bus and three load cell, and bus I unit comprises bus I and load Unit 1, load Unit 2 and load Unit 3.The Unit 1 of loading comprises that the load 1 that is in series and step-down transformer 1, load Unit 2 comprise the load 2 and the step-down transformer 2 that are in series, and load Unit 3 comprise the load 3 and the step-down transformer 3 that are in series.Bus II unit comprises bus II and load Unit 4, load Unit 5 and load Unit 6, the Unit 4 of loading comprise that the load 4 that is in series and step-down transformer 4, load Unit 5 comprise the load 5 and the step-down transformer 5 that are in series, and load Unit 6 comprise the load 6 and the step-down transformer 6 that are in series.Each bus unit is also included as the Emergency power supply unit that high-risk electricity consumption user prepares, the Emergency power supply unit of bus I unit is made up of step-up transformer 7 and generator 1, the Emergency power supply unit of bus II unit is made up of step-up transformer 8 and generator 2, and each generator is via corresponding transformer access bus; The generator of each bus unit is arranged in same transformer station.The voltage of bus I carrying is 10kV, and the voltage of bus II carrying is also 10kV.
The utility model be applicable to bus unit internal wiring intact, because of the power plant disconnection fault that goes wrong and cause of transmitting electricity.Operation principle of the present utility model is: when power plant normal power supply, Emergency power supply unit is place in circuit not, and generator does not carry out work; In the time that power plant's power supply is broken down, disconnect master and enter circuit breaker and isolating switch, close all non-important load switches, start the Emergency power supply unit in bus I unit or bus II unit, generator rises to bus required voltage by step-up transformer by voltage, bus is sent to important load by electric power again, and important load is normally worked.In the time that the Emergency power supply unit of one of them unit breaks down, mother between closed cell, be that this unit powers with the Emergency power supply unit of adjacent cells, so just realize for subsequent use each other of Emergency power supply unit between bus unit, improve the utilance of Emergency power supply unit, further improved the power supply reliability of system.
The utility model has only provided the example with two bus units, and in the time of practical application, the quantity of bus unit is much larger than two, and the voltage carrying may be not identical yet, and those skilled in the art arrange according to catenation principle of the present utility model.Quantity as for the actual contained electric load equipment of bus unit is also far above three, and the quantity that each unit comprises is also different.
The utility model is by the emergency generator centralized integration for high-risk electricity consumption user of originally disperseing to distribute, unified laying, in the time there is power-off, generator 1 forms current supply circuit with the Emergency power supply unit that step-up transformer 8 forms by bus with step-up transformer 7, generator 2, for important load 3 and load 6 power supplies, for high-risk electricity consumption user provides reliable emergency power supply the power-off in the situation that.
The beneficial effect that connected mode of the present utility model produces is: the Emergency power supply unit for high-risk electricity consumption user that originally disperses to distribute is concentrated and laid, make emergency service control mode more flexible; A generator can be just all load power supplies of a bus unit, compared with the structure that is equipped with a generator with an existing high-risk electricity consumption user, greatly reduce the quantity of generator, improve generator utilance, simultaneously also reduce maintenance cost, shortened the start-up time of generator when emergent; In the time that the generator of different bus units breaks down, the normal power generation machine of adjacent cells also can be its load power supply, and the generator that can realize so adjacent bus unit is for subsequent use each other, has improved the emergency service reliability of whole system.
Claims (3)
1. a high-risk electricity consumption user emergency service syndeton, comprise the bus unit of a series of series connection, described bus unit comprises bus and more than two load cell, described load cell comprises electric load equipment and step-down transformer, it is characterized in that bus unit is also included as the Emergency power supply unit that high-risk electricity consumption user prepares, described Emergency power supply unit is made up of step-up transformer and generator, and generator accesses bus via step-up transformer; The generator of each bus unit is arranged in same transformer station.
2. high-risk electricity consumption user emergency service syndeton according to claim 1, is characterized in that the rated voltage that the bus of described bus unit carries is: 10kV or 35kV.
3. high-risk electricity consumption user emergency service syndeton according to claim 1 and 2, is characterized in that described electric load equipment comprises: a stage load, two stage loads, three stage loads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052636.6U CN203691053U (en) | 2014-01-27 | 2014-01-27 | High-risk power consumption user emergency power supply connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052636.6U CN203691053U (en) | 2014-01-27 | 2014-01-27 | High-risk power consumption user emergency power supply connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691053U true CN203691053U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420052636.6U Expired - Fee Related CN203691053U (en) | 2014-01-27 | 2014-01-27 | High-risk power consumption user emergency power supply connection structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203691053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260284A (en) * | 2020-11-04 | 2021-01-22 | 江西中竹生物质科技有限公司 | Power supply system for reducing power consumption cost of enterprise |
-
2014
- 2014-01-27 CN CN201420052636.6U patent/CN203691053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260284A (en) * | 2020-11-04 | 2021-01-22 | 江西中竹生物质科技有限公司 | Power supply system for reducing power consumption cost of enterprise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20200127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |