CN206962428U - A kind of generator outlet distribution structure - Google Patents
A kind of generator outlet distribution structure Download PDFInfo
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- CN206962428U CN206962428U CN201720773520.5U CN201720773520U CN206962428U CN 206962428 U CN206962428 U CN 206962428U CN 201720773520 U CN201720773520 U CN 201720773520U CN 206962428 U CN206962428 U CN 206962428U
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- generator
- bus
- generator outlet
- outlet
- distribution
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Abstract
The utility model provides a kind of generator outlet distribution structure, without using isolating transformer.A kind of generator outlet distribution structure, it is characterised in that：Including generator, generator measurement cabinet, No.1 generator breaker, isolated hand car, generator outlet bus, PT arresters cabinet, No. two generator breakers, distribution bus；The generator, generator measurement cabinet, No.1 generator breaker, generator outlet bus are sequentially connected；The isolated hand car and PT arrester cabinets are connected on generator outlet bus；The generator outlet bus is connected to distribution bus by No. two generator breakers.So that do not have to add isolating transformer between generator outlet bus and distribution bus.
Description
Technical field
A kind of generator outlet distribution structure is the utility model is related to, applied in power plant.
Background technology
Power plant auxiliary system power supply is provided by our factory's generator, for generator outlet voltage class and station service system
When voltage class of uniting mismatches, generally configure transformer in generator outlet and powered to our factory.And when generator outlet voltage etc.
When level is identical with Auxiliary Power System Voltage grade, way is in generator outlet configuration isolation transformer, isolating transformer at present
Former secondary voltage is identical（Such as 10kV/10 kV, 6kV/6 kV）, so do primarily to limit HV auxiliary power s ystem short circuit current,
But for Pump for Medium and Small Power Generating Set, short circuit current is simultaneously little, and after configuration isolation transformer, not only equipment cost increases, and takes up an area
Area increases, therefore a kind of generator outlet distribution system without isolating transformer of research has practical value.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of structure design and close
The generator outlet distribution structure of reason, without using isolating transformer.
The technical scheme in the invention for solving the above technical problem is：A kind of generator outlet distribution structure, it is special
Sign is：Kept away including generator, generator measurement cabinet, No.1 generator breaker, isolated hand car, generator outlet bus, PT
Thunder device cabinet, No. two generator breakers, distribution bus；The generator, generator measurement cabinet, No.1 generator breaker, hair
Motor outlet bus is sequentially connected；The isolated hand car and PT arrester cabinets are connected on generator outlet bus；The generator
Outlet bus is connected to distribution bus by No. two generator breakers.So that generator outlet bus and distribution bus it
Between do not have to plus isolating transformer.
Preferably, it is not provided with isolating transformer between the generator outlet bus and distribution bus.
The utility model compared with prior art, has advantages below and effect：1st, there are two groups on generator outlet bus
There is no isolating transformer between generator breaker, with distribution bus, not only reduce equipment cost, also reduce occupation of land face
Product.2nd, there is two generators breaker in the present embodiment on generator outlet bus；No.1 generator breaker is connected to generating
Between machine and generator outlet bus, when short trouble occurs for generator outlet bus, No.1 generator breaker 3 is disconnected immediately
Open；No. two generator breakers are connected between generator outlet bus and distribution bus, when short trouble occurs for distribution bus
When, No. two generator breakers disconnect, and are effectively protected circuit.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
In figure：Generator 1, generator measurement cabinet 2, No.1 generator breaker 3, isolated hand car 4, generator outlet bus
5, PT arrester cabinets 6, No. two generator breakers 7, distribution bus 8.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Referring to Fig. 1, the present embodiment includes generator 1, generator measurement cabinet 2, No.1 generator breaker 3, isolated hand car
4th, generator outlet bus 5,6, No. two generator breakers 7 of PT arresters cabinet and distribution bus 8.
Generator 1, generator measurement cabinet 2, No.1 generator breaker 3, generator outlet bus 4 are sequentially connected, and are generated electricity
Machine 1 is connected to generator outlet bus 4 by generator measurement cabinet 2 and No.1 generator breaker 3.
Isolated hand car 4 and PT arresters cabinet 6 are connected on generator outlet bus 5.
Generator outlet bus 5 is connected to distribution bus 8 by No. two generator breakers 7.
Isolating transformer is not provided between generator outlet bus 5 and distribution bus 8.
No.1 generator breaker 3 and No. two generator breakers 7 are that one kind can cut-off generator short circuit DC component
Breaker.
During operation, three-terminal differential protection is configured to generator outlet bus 5, i.e., in isolated hand car 4, the open circuit of No.1 generator
Measure at 3, No. two generator breakers 7 of device, when detecting that the electric current sum measured at above-mentioned three exceedes setting value, that is, sentence
Determine generator outlet bus 5 and short trouble occurs, then turn off No.1 generator breaker 3；Simultaneously in No. two generator open circuits
Current quick is installed at device 7, when short trouble occurs for distribution bus 8, No. two generator breakers 7 are disconnected, although matching somebody with somebody
The short circuit current that No. two generator breakers 7 are flowed through during electric busbar short-circuit has higher DC component, but as a result of hair
Motor breaking device, still can reliably it cut-off.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and the principle described according to the utility model patent design are done, are wrapped
Include in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can be to described
Specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from knot of the present utility model
Structure surmounts scope defined in the claims, all should belong to the scope of protection of the utility model.
Claims (2)
- A kind of 1. generator outlet distribution structure, it is characterised in that：Break including generator, generator measurement cabinet, No.1 generator Road device, isolated hand car, generator outlet bus, PT arresters cabinet, No. two generator breakers, distribution bus；The generator, Generator measurement cabinet, No.1 generator breaker, generator outlet bus are sequentially connected；The isolated hand car and PT arrester cabinets It is connected on generator outlet bus；The generator outlet bus is connected to distribution bus by No. two generator breakers.
- 2. generator outlet distribution structure according to claim 1, it is characterised in that：The generator outlet bus is with matching somebody with somebody Isolating transformer is not provided between goddess of lightning's line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720773520.5U CN206962428U (en) | 2017-06-29 | 2017-06-29 | A kind of generator outlet distribution structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720773520.5U CN206962428U (en) | 2017-06-29 | 2017-06-29 | A kind of generator outlet distribution structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206962428U true CN206962428U (en) | 2018-02-02 |
Family
ID=61385571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720773520.5U Active CN206962428U (en) | 2017-06-29 | 2017-06-29 | A kind of generator outlet distribution structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206962428U (en) |
-
2017
- 2017-06-29 CN CN201720773520.5U patent/CN206962428U/en active Active
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