CN106602546A - 110kv step-down substation electrical primary system - Google Patents
110kv step-down substation electrical primary system Download PDFInfo
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- CN106602546A CN106602546A CN201510676844.2A CN201510676844A CN106602546A CN 106602546 A CN106602546 A CN 106602546A CN 201510676844 A CN201510676844 A CN 201510676844A CN 106602546 A CN106602546 A CN 106602546A
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Abstract
The present invention relates to the substation technology field, especially to a primary system. The system comprises two transformers which are a first transformer with a 110KV voltage grade and a second transformer with a 10KV voltage grade connected with the first transformer. The first transformer side has two incoming and outgoing lines, and the first transformer side employs a bridge-shaped wiring mode. The second transformer side has 25 incoming and outgoing lines, and the second transformer side employs a single bus section and bypass bus wiring mode. Through adoption of the technical scheme, the 110kv step-down substation electrical primary system realizes the substantial advantages of efficient operation and convenient maintenance on the premise of power distribution reliability, economical efficiency and flexibility.
Description
Technical field
The present invention relates to transformer station's technical field, and in particular to a kind of primary system.
Background technology
Transformer station of China current situation：According to《State Grid Corporation of China's Eleventh Five-Year Plan science and technology development planning》,
China will implement exemplary intelligent substation the Eleventh Five-Year Plan period.Each domestic Utilities Electric Co. opens
Begin the pilot project construction of intelligent power transformation.Intelligent substation employs integrated reliability, the intelligence of low-carbon environment-friendly
Can electrical equipment, basic demand is information digitalization, information sharing standardization, communications platform networking.
The collection of information is completed, is measured, the basic function such as control and detection.Primary equipment gradually moves towards intelligence
Change, digitized.Conventional electromagnetic transformer is replaced by electronic mutual inductor, and after merging, light is situated between
Matter is provided out a digitized information about power.The primary equipments such as traditional chopper, transformator are installed
Intelligent assembly, realizes the digitized and state on_line monitoring of information, so as to reach primary equipment intelligence
The requirement of change.
Although intelligent substation technology is ripe in terms of some, also in conceptual phase in terms of some,
In the budding stage in terms of some.The practice of such as intelligent primary equipment presence maintenance, is still within grinding
Study carefully the stage；Intelligent alarm, analysis decision, optimal control, analysis decision etc., all in conceptual phase；
The application on the transformer of novel grating formula temperature is in the budding stage with on-line control system；Intelligence is protected
Shield is in conceptual phase with distributed coordination Based Intelligent Control.
The content of the invention
It is an object of the present invention to provide a kind of 110kv step-down substations electrical primary system, solve with
Upper technical problem.
Technical problem solved by the invention can employ the following technical solutions to realize：
110kv step-down substation electrical primary systems, including two transformators, respectively 110KV voltages
Second transformator of the 10KV electric pressures of the first transformator of grade and first transformator connection；
First transformer side has two back into outlet, and first transformer side adopts Gratz connection mode；
Second transformer side has 25 back into outlet, and second transformer side is using single busbar point
The section band hospital bus bar mode of connection.
When the present invention is in 110KV step-down substations, for 110kV sides, because it will supply
A more class, two type loads, therefore its requirement has higher reliability.In order in view of to main transformer
Erosion problem, main transformer do not have extreme high reliability, should not adopt line-transformer-connection mode.From
The consideration of many factors such as economy, reliability, motility, Gratz connection, with certain reliability
And extensibility.In addition, transformer station's power supply of the present invention is concentrated mainly on 10kV, because there is first order load,
Interruption maintenance chopper is not allowed, so need to arrange bypass facility, and if double-bus is pressed in 10kV sides
The bad arrangement electrical equipment of wiring, mainly no suitable relay protection device, therefore the present invention are selected
Using the sectionalized single busbar connection band hospital bus bar mode of connection.
First transformer side preferably adopts internal bridge connection.In the present invention because the first transformator
Only two inlet wires, are one-end substation, and no penetration, simple structure, directly and power supply
When being connected, therefore selecting bridge joint wiring, as internal bridge transmission line of electricity is longer, transformator is infrequently thrown
Cut, penetration less, so in outer bridging line and internal bridge, selecting internal bridge preferable.
The internal bridge of first transformer side includes the first chopper, the first disconnecting switch, described
One chopper preferably adopts LW13-110 type choppers, first disconnecting switch preferably to adopt
GW4-110D/1000-80 type disconnecting switch.
Second transformer side sectionalized single busbar connection band hospital bus bar wiring include the second chopper, second
Disconnecting switch, second chopper preferably adopt ZN63A-12 (VS1) vacuum circuit breaker, and described the
Two disconnecting switch preferably adopt GN22--10/2000 type disconnecting switch.
The bus of second transformer side preferably adopts ZN12-10/3150 type choppers, described
The mother disconnecting switch of the second transformer side preferably adopts GN10-10T/3000 type disconnecting switch.
The internal bridge of first transformer side also includes the first current transformer and first voltage mutual inductance
Device, first current transformer is preferably using LB7-110 types open air alone type current transformer；
The first voltage transformer is preferably adoptedType voltage transformer.
The sectionalized single busbar connection band hospital bus bar wiring of second transformer side also includes the second current transformer
With second voltage transformer, second current transformer preferably using LMZBJ2-10Q/250 types it is indoor
Formula current transformer；
The second voltage transformer preferably adopts JSJW-10 type voltage transformers.
Beneficial effect：Due to adopting above-mentioned technical proposal, the present invention ensure power supply reliability, economy,
On the premise of motility, operation is realized efficiently, remarkable advantage easy to maintenance.
Description of the drawings
Fig. 1 is 110KV sides of the present invention electric main wiring diagram；
Fig. 2 is 10KV sides of the present invention electric main wiring diagram.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are readily apparent from
Solution, is expanded on further the present invention with reference to being specifically illustrating.
110kv step-down substation electrical primary systems, including two transformators, respectively 110KV voltages
Second transformator of the 10KV electric pressures of the first transformator of grade and the connection of the first transformator.
With reference to Fig. 1, the first transformer side has two back into outlet, and the first transformer side preferably adopts internal bridge
Mode.The internal bridge of the first transformer side includes the first chopper, the first disconnecting switch, and first is breaking
Device preferably adopts LW13-110 type choppers, the first disconnecting switch preferably to adopt GW4-110D/1000-80
Type disconnecting switch.The internal bridge of the first transformer side also includes that the first current transformer and first voltage are mutual
Sensor, the first current transformer is preferably using LB7-110 types open air alone type current transformer.First is electric
Pressure transformer is preferably adoptedType voltage transformer.
With reference to Fig. 2, the second transformer side has 25 back into outlet, and the second transformer side is using single busbar point
The section band hospital bus bar mode of connection.The sectionalized single busbar connection band hospital bus bar wiring of the second transformer side includes the
Two choppers, the second disconnecting switch, the second chopper preferably adopt ZN63A-12 (VS1) vacuum circuit breaker
Device, the second disconnecting switch preferably adopt GN22--10/2000 type disconnecting switch.The mother of the second transformer side
Chopper preferably adopts ZN12-10/3150 type choppers, and the mother disconnecting switch of the second transformer side is preferred
Using GN10-10T/3000 type disconnecting switch.The sectionalized single busbar connection band hospital bus bar of the second transformer side connects
Line also includes the second current transformer and second voltage transformer, and the second current transformer is preferably adopted
LMZBJ2-10Q/250 type indoor type current transformers.Second voltage transformer preferably adopts JSJW-10
Type voltage transformer.
When the present invention is in 110KV step-down substations, for 110kV sides, because it will supply
A more class, two type loads, therefore its requirement has higher reliability.In order in view of to main transformer
Erosion problem, main transformer do not have extreme high reliability, should not adopt line-transformer-connection mode.From
The consideration of many factors such as economy, reliability, motility, Gratz connection, with certain reliability
And extensibility.In the present invention because the first transformator only has two inlet wires, it is one-end substation, and
And no penetration, simple structure, when being directly connected with power supply, therefore selecting bridge joint wiring, due to
Internal bridge transmission line of electricity is longer, infrequently switching, penetration are little for transformator, so bridging outside
In line and internal bridge, select internal bridge preferable.
In addition, transformer station's power supply of the present invention is concentrated mainly on 10kV, because there is first order load, do not allow
Interruption maintenance chopper, so need to arrange bypass facility, and if double bus scheme is pressed not in 10kV sides
Electrical equipment is arranged well, mainly no suitable relay protection device, therefore present invention selection is using single
The bus section band hospital bus bar mode of connection.
The ultimate principle and principal character and advantages of the present invention of the present invention has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the present invention is not restricted to the described embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention,
The present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention model
In enclosing.The claimed scope of the invention is by appending claims and its equivalent thereof.
Claims (7)
1.110kv step-down substation electrical primary systems, including two transformators, it is characterised in that respectively
The 10KV electric pressures of the first transformator and first transformator connection for 110KV electric pressures
The second transformator；
First transformer side has two back into outlet, and first transformer side adopts Gratz connection mode；
Second transformer side has 25 back into outlet, and second transformer side is using single busbar point
The section band hospital bus bar mode of connection.
2. 110kv step-down substations electrical primary system according to claim 1, it is characterised in that
First transformer side adopts internal bridge connection.
3. 110kv step-down substations electrical primary system according to claim 1, it is characterised in that
The internal bridge of first transformer side includes the first chopper, the first disconnecting switch, and described first breaks
Road device adopts LW13-110 type choppers, first disconnecting switch to adopt GW4-110D/1000-80 types
Disconnecting switch.
4. 110kv step-down substations electrical primary system according to claim 1, it is characterised in that
The sectionalized single busbar connection band hospital bus bar wiring of second transformer side includes the second chopper, the second isolation
Switch, second chopper adopt ZN63A-12 (VS1) vacuum circuit breaker, and described second keeps apart
Close using GN22--10/2000 type disconnecting switch.
5. 110kv step-down substations electrical primary system according to claim 4, it is characterised in that
The bus of second transformer side adopts ZN12-10/3150 type choppers, second transformation
The mother disconnecting switch of device side adopts GN10-10T/3000 type disconnecting switch.
6. 110kv step-down substation electrical primary systems according to claim 1 or 3, its feature
It is that the internal bridge of first transformer side also includes the first current transformer and first voltage mutual inductance
Device, first current transformer is using LB7-110 types open air alone type current transformer；
The first voltage transformer is adoptedType voltage transformer.
7. 110kv step-down substation electrical primary systems according to claim 1,4 or 5, which is special
Levy and be, the sectionalized single busbar connection band hospital bus bar wiring of second transformer side also includes that the second electric current is mutual
Sensor and second voltage transformer, second current transformer are indoor using LMZBJ2-10Q/250 types
Formula current transformer；
The second voltage transformer adopts JSJW-10 type voltage transformers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676844.2A CN106602546A (en) | 2015-10-16 | 2015-10-16 | 110kv step-down substation electrical primary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676844.2A CN106602546A (en) | 2015-10-16 | 2015-10-16 | 110kv step-down substation electrical primary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106602546A true CN106602546A (en) | 2017-04-26 |
Family
ID=58554088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510676844.2A Withdrawn CN106602546A (en) | 2015-10-16 | 2015-10-16 | 110kv step-down substation electrical primary system |
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| Country | Link |
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| CN (1) | CN106602546A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155563A (en) * | 2017-12-29 | 2018-06-12 | 国家电网公司 | The female simultaneous other system structure of substation |
| CN109149388A (en) * | 2017-06-16 | 2019-01-04 | 广东电网有限责任公司清远供电局 | A kind of substation's connecting structure for electrical equipment |
-
2015
- 2015-10-16 CN CN201510676844.2A patent/CN106602546A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149388A (en) * | 2017-06-16 | 2019-01-04 | 广东电网有限责任公司清远供电局 | A kind of substation's connecting structure for electrical equipment |
| CN108155563A (en) * | 2017-12-29 | 2018-06-12 | 国家电网公司 | The female simultaneous other system structure of substation |
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Application publication date: 20170426 |