CN110491659A - 66kV(110kV) voltage class wind power generation boosting transformer - Google Patents
66kV(110kV) voltage class wind power generation boosting transformer Download PDFInfo
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- CN110491659A CN110491659A CN201910662283.9A CN201910662283A CN110491659A CN 110491659 A CN110491659 A CN 110491659A CN 201910662283 A CN201910662283 A CN 201910662283A CN 110491659 A CN110491659 A CN 110491659A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
- H01F27/2852—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
- H01F2027/2857—Coil formed from wound foil conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
Proposed by the present invention is 66kV(110kV) voltage class wind power generation boosting transformer.2200~11000kVA of rated capacity, low-pressure side voltage rating 0.69kV, high side voltage grade can reach 66kV(110kV), it improves existing case and becomes primary side voltage class 35kV to 66kV(110kV), including iron core, low pressure winding, high-voltage winding, fuel tank, transformer oil, low-voltage lead, high-voltage connection, low-tension bushing, bushing, oil conservater, gas relay, pressure relief valve, tap switch, oil surface temperature meter, winding temperature gage, bushing current transformer and dehydrating breather；Idling load-loss is superior to national standard, the wind-power electricity generation network coverage for solving the access of existing distributing is small, digestion capability finiteness problem, meet the requirement that distributing wind-power electricity generation installs on the spot, disperses access, on-site elimination, is suitable for being used as distributing wind power generation boosting transformer.
Description
Technical field
The present invention relates to power supply technical fields, more particularly to a kind of 66kV(110kV) voltage class wind-power electricity generation
Series special step-up transformer.
Background technique
Wind energy is a kind of reproducible clean energy resource.In the world the use aspects of wind energy, either theoretical research still
Application study all achieves major progress.Wind generating technology becomes better and approaching perfection day by day, and grid-connected wind power machine single machine rated power is most
7MW has been arrived greatly.From now on, domestic and international wind generating technology and the development speed of industry will obviously be accelerated.
Existing wind-driven generator single-machine capacity is 1.5~7MW, and wind-driven generator exit potential is 0.69kV, boosted change
Depressor boosts to 35kV voltage class, then 35kV voltage class is risen to 66kV(110kV by the main transformer of wind power plant) or 220kV electricity
Power grid is sent into after pressure grade, this mode is relatively applicable in centralized separate unit fan capacity in 4MW wind power generating set below,
Wind-power electricity generation for low capacity centralization wind power generating set and distributing single unit capacity greater than 5MW is sent out just difficult
, it is not able to satisfy the political affairs that the distributing wind power industry that current China actively advocates installs on the spot, disperses access, on-site elimination
Plan requirement.
Since 35kV voltage is lower, for network transmission apart from short, coverage area is small, and digestion capability is limited, has seriously affected me
The development of state's distributing wind power industry.
Summary of the invention
The present invention is for the dedicated step-up transformer primary side voltage of existing wind-power electricity generation is low, network transmission is apart from short, covering
The problems such as range is small, digestion capability is limited, provides 66kV(110kV) voltage class wind power generation boosting transformer, specified appearance
2200kVA~11000kVA is measured, primary side rated output voltage grade is 66kV(110kV), rated secondary voltage 0.69kV,
Frequency 50Hz, every technical parameter index reduce by 15% or so than national standard value, and operational efficiency is high, and operating cost reduces
15%, it is full sealed non-maintenance product, compact-sized, reliably protecting personal safety, low-loss, pollution-free, environmentally protective, use
Service life is long.
The purpose of the present invention is what is be achieved through the following technical solutions:
66kV(110kV) voltage class wind-power electricity generation series special step-up transformer abbreviation 66kV(110kV) voltage class wind-force
Generate electricity step-up transformer, 2200~11000kVA of rated capacity, low-pressure side voltage rating 0.69kV, and high side voltage grade is reachable
To 66kV(110kV), improves existing case and become primary side voltage class 35kV to 66kV(110kV), including iron core, low pressure winding,
High-voltage winding, fuel tank, transformer oil, low-voltage lead, high-voltage connection, low-tension bushing, bushing, oil conservater, gas relay,
Pressure relief valve, tap switch, oil surface temperature meter, winding temperature gage, bushing current transformer and dehydrating breather；
The high-voltage winding is wound on outside low pressure winding, and high-voltage winding and low pressure winding are system around winding rear integral assembling to iron core
Stem on, transformer body is placed in fuel tank by drying process；The head and the tail of low pressure winding are connected to by low-voltage lead
The head and the tail of low-tension bushing, high-voltage winding 3 are connected to bushing by high-voltage connection；Fuel tank two sides are equipped with fixed sheet arranged heat dissipation
Device, oil conservater, gas relay, pressure relief valve, oil surface temperature meter, winding temperature gage are mounted on fuel tank top cover, are located at fuel tank
It is external；Tap switch is mounted on fuel tank top cover, is located at fuel tank internal；Dehydrating breather is mounted on oil conservater；Bushing current mutual inductance
Device is mounted in fuel tank high-voltage lifting seat.
The iron core uses high magnetic conduction cold-rolled orientation silicon steel piece, 45 ° of mitered crack structures of three-phase three-limb Pyatyi, stem and iron
Yoke is circular configuration, and high-voltage winding selects semihard paper bag flat type copper wire, and low pressure winding copper foil coiling, winding construction is multi-layer cylinder
A formula left side around to；High-voltage connection selects copper stranded conductor, and low-voltage lead selects copper bar；Bushing is worn using transformer oilpaper is capacitive
Cable formula casing, low-tension bushing use transformer composite ceramic insulating sleeve；Transformer oil uses 45# or 25# insulating oil, oil conservater
Using capsule type oil storage cabinet；Gas relay is using double floating balls, two point baffle-type gas relay；Pressure relief valve is used and is led
To type pressure relief valve；Tap switch is using the horizontal cage modle tap switch of no excitation；Dehydrating breather is inhaled using blue particle silica gel-type
Wet device.
The 66kV(110kV) voltage class wind-power electricity generation series special step-up transformer model is S11(13) -2200~
11000/69(115), rated capacity is 2200 ~ 11000KVA, rated voltage ratio 69(115)/0.69, rated frequency 50Hz, phase
Number is three-phase, connection set Dyn11, range of regulation 69(115) ± 2 × 2.5%, pressure regulation position is middle part voltage regulating, impedance voltage hundred
Score 8%~10%, no-load loss, no-load current, load loss are all satisfied or better than national standards, top-oil temperature ceiling value 55K,
Winding temperature rise limit value 65K, high-voltage isulation level (LI/AC) 325kV/140kV(480kV/200kV), low-voltage insulation level (LI/
AC) 40kV/18kV, high-pressure side 1.5Um/Partial discharge quantity≤100pc under voltage, low-pressure side 1.5Um/It is locally put under voltage
Electricity≤300pc.
The beneficial effects of the present invention are: (1) present invention by improving primary side voltage class, reduces the section of transmission cable
Product reduces line loss and pressure drop, reduces line construction cost, increases the transmission radius of electric energy, improves electric energy consumption ability, satisfaction point
Dissipate the policy requirements that the large capacity blower that formula accesses installs on the spot, disperses access, on-site elimination.
(2) voltage class reach can direct grid-connected requirement, 66kV can be delivered directly to after primary side Protection control system
(110kV) voltage class power grid, save build 66kV(110kV) primary substation expense.
(3) primary intermediate power transformation link is reduced, the efficiency of transmission system is improved, promotes the economic benefit of power grid.
Detailed description of the invention
Attached drawing 1 is schematic diagram of internal structure of the invention；
Attached drawing 2 is the side structure schematic diagram of attached drawing 1.
In figure, 1. iron cores, 2. low pressure windings, 3. high-voltage windings, 4. fuel tanks, 5. transformer oil, 6. low-voltage leads, 7. high pressures
Lead, 8. low-tension bushings, 9. bushings, 10. oil conservaters, 11. gas relays, 12. pressure relief valves, 13. tap switches,
14. oil surface temperature meter, 15. winding temperature gages, 16. bushing current transformers, 17. dehydrating breathers.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
According to the figure, 66kV(110kV) voltage class wind-power electricity generation series special step-up transformer abbreviation 66kV(110kV)
Voltage class wind power generation boosting transformer, 2200~11000kVA of rated capacity, low-pressure side voltage rating 0.69kV, high-pressure side
Voltage class can reach 66kV(110kV), it improves existing case and becomes primary side voltage class 35kV to 66kV(110kV), including iron
Core 1, low pressure winding 2, high-voltage winding 3, fuel tank 4, transformer oil 5, low-voltage lead 6, high-voltage connection 7, low-tension bushing 8, high pressing sleeve
Pipe 9, oil conservater 10, gas relay 11, pressure relief valve 12, tap switch 13, oil surface temperature meter 14, winding temperature gage 15,
Bushing current transformer 16 and dehydrating breather 17.
The high-voltage winding 3 is wound on outside low pressure winding 2, and high-voltage winding 3 and low pressure winding 2 are system around whole set after winding
It is attached on the stem of iron core 1, transformer body is placed in fuel tank 4 by drying process；The head and the tail of low pressure winding 2 pass through low pressure
Lead 6 is connected to low-tension bushing 8, and the head and the tail of high-voltage winding 3 are connected to bushing 9 by high-voltage connection 7；4 two sides of fuel tank are set
There are fixed gilled radiator, oil conservater 10, gas relay 11, pressure relief valve 12, oil surface temperature meter 14, winding temperature gage
15 are mounted on 4 top cover of fuel tank, are located at outside fuel tank 4；Tap switch 13 is mounted on 4 top cover of fuel tank, is located at fuel tank internal；Dehydrating breather
17 are mounted on oil conservater 10；Bushing current transformer 16 is mounted in 4 high-voltage lifting seat of fuel tank.
The iron core 1 uses high magnetic conduction cold-rolled orientation silicon steel piece, 45 ° of mitered crack structures of three-phase three-limb Pyatyi, stem and
Iron yoke is circular configuration, and high-voltage winding 3 selects semihard paper bag flat type copper wire, and the copper foil coiling of low pressure winding 2, winding construction is multilayer
A drum type brake left side around to；High-voltage connection 7 selects copper stranded conductor, and low-voltage lead 6 selects copper bar；Bushing 9 uses transformer oilpaper
Capacitive to wear cable formula casing, low-tension bushing 8 uses transformer composite ceramic insulating sleeve；Transformer oil 5 is exhausted using 45# or 25#
Edge oil, oil conservater 10 use capsule type oil storage cabinet；Gas relay 11 is using double floating balls, two point baffle-type gas relay；
Pressure relief valve 12 uses guidance type pressure relief valve；Tap switch 13 is using the horizontal cage modle tap switch of no excitation；Dehydrating breather
17 use blue particle silica gel-type dehydrating breather.
The 66kV(110kV) voltage class wind-power electricity generation series special step-up transformer model is S11(13) -2200~
11000/69(115), rated capacity is 2200 ~ 11000KVA, rated voltage ratio 69(115)/0.69, rated frequency 50Hz, phase
Number is three-phase, connection set Dyn11, range of regulation 69(115) ± 2 × 2.5%, pressure regulation position is middle part voltage regulating, impedance voltage hundred
Score 8%~10%, no-load loss, no-load current, load loss are all satisfied or better than national standards, top-oil temperature ceiling value 55K,
Winding temperature rise limit value 65K, high-voltage isulation level (LI/AC) 325kV/140kV(480kV/200kV), low-voltage insulation level (LI/
AC) 40kV/18kV, high-pressure side 1.5Um/Partial discharge quantity≤100pc under voltage, low-pressure side 1.5Um/It is locally put under voltage
Electricity≤300pc.
The working principle of the invention:
Fan outlet voltage 690V, by 66kV(110kV) after voltage class wind-power electricity generation series special step-up transformer transformation,
Output voltage grade reaches 66kV(110kV), reach grid-connected requirement after being connected to high-pressure side Protection control system, can directly transport
To 66kV(110kV) voltage class power grid, save and build 66kV(110kV) expense of primary substation, is reduced primary intermediate
Power transformation link improves the efficiency of transmission system, promotes the economic benefit of power grid.
Advantages of the present invention:
66kV(110kV) voltage class wind-power electricity generation series special step-up transformer, rated capacity 2200kVA~11000kVA,
Primary side rated output voltage grade is 66kV(110kV), rated secondary voltage 0.69kV, frequency 50Hz, three-phase double winding,
Non-excitation pressure adjustment, idling load-loss reach national second level Energy Efficiency Standard and are lower than national standard and power grid standard, low partial discharge, low noise,
Long service life.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1.66kV(110kV) voltage class wind power generation boosting transformer, it is characterized in that:
2200~11000kVA of rated capacity, low-pressure side voltage rating 0.69kV, high side voltage grade can reach 66kV
(110kV) improves existing case and becomes primary side voltage class 35kV to 66kV(110kV), including iron core (1), low pressure winding (2),
High-voltage winding (3), fuel tank (4), transformer oil (5), low-voltage lead (6), high-voltage connection (7), low-tension bushing (8), bushing
(9), oil conservater (10), gas relay (11), pressure relief valve (12), tap switch (13), oil surface temperature meter (14), winding
Thermometer (15), bushing current transformer (16) and dehydrating breather (17).
2. 66kV(110kV according to claim 1) voltage class wind power generation boosting transformer, it is characterized in that: described
High-voltage winding (3) is wound on low pressure winding (2) outside, and high-voltage winding and low pressure winding are system around winding rear integral assembling to iron core (1)
Stem on, transformer body is placed in fuel tank (4) by drying process；The head and the tail of low pressure winding pass through low-voltage lead (6)
It is connected to low-tension bushing (8), the head and the tail of high-voltage winding are connected to bushing (9) by high-voltage connection (7)；Fuel tank two sides are equipped with
Fixed gilled radiator, oil conservater (10), gas relay (11), pressure relief valve (12), oil surface temperature meter (14), winding
Thermometer (15) is mounted on fuel tank top cover, is located at outside fuel tank；Tap switch (13) is mounted on fuel tank top cover, is located in fuel tank
Portion；Dehydrating breather (17) is mounted on oil conservater；Bushing current transformer (16) is mounted in 4 high-voltage lifting seat of fuel tank.
3. 66kV(110kV according to claim 1) voltage class wind power generation boosting transformer, it is characterized in that: described
Iron core uses high magnetic conduction cold-rolled orientation silicon steel piece, and 45 ° of mitered crack structures of three-phase three-limb Pyatyi, stem and iron yoke are round knot
Structure, high-voltage winding select semihard paper bag flat type copper wire, low pressure winding copper foil coiling, winding construction be a multi-layer cylindrical left side around to；
High-voltage connection selects copper stranded conductor, and low-voltage lead selects copper bar；Bushing wears cable formula casing using transformer oilpaper is capacitive,
Low-tension bushing uses transformer composite ceramic insulating sleeve；Transformer oil (5) uses 45# or 25# insulating oil, and oil conservater uses glue
Bellows oil conservater；Gas relay is using double floating balls, two point baffle-type gas relay；Pressure relief valve uses guidance type pressure
Power relief valve；Tap switch is using the horizontal cage modle tap switch of no excitation；Dehydrating breather uses blue particle silica gel-type dehydrating breather.
4. 66kV(110kV according to claim 1) voltage class wind power generation boosting transformer, it is characterized in that: described
66kV(110kV) voltage class wind power generation boosting transformer model is S11(13) -2200~11000/69(115), specified appearance
Amount is 2200~11000KVA, rated voltage ratio 69(115)/0.69, rated frequency 50Hz, the number of phases is three-phase, connection set
Dyn11, range of regulation 69(115) ± 2 × 2.5%, pressure regulation position is middle part voltage regulating, and impedance voltage percentage 8%~10% is unloaded
Loss, no-load current, load loss are all satisfied or better than national standards, top-oil temperature ceiling value 55K, winding temperature rise limit value 65K,
High-voltage isulation level (LI/AC) 325kV/140kV(480kV/200kV), low-voltage insulation level (LI/AC) 40kV/18kV, high pressure
Side 1.5Um/Partial discharge quantity≤100pc under voltage, low-pressure side 1.5Um/Partial discharge quantity≤300pc under voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662283.9A CN110491659A (en) | 2019-07-22 | 2019-07-22 | 66kV(110kV) voltage class wind power generation boosting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662283.9A CN110491659A (en) | 2019-07-22 | 2019-07-22 | 66kV(110kV) voltage class wind power generation boosting transformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444380A (en) * | 2019-07-22 | 2019-11-12 | 辽宁中能电力实业集团有限责任公司 | 66kV voltage class Oversea wind power generation single-phase step-up transformer group |
| CN113948286A (en) * | 2021-10-26 | 2022-01-18 | 保定保菱变压器有限公司 | On-load voltage regulation power transformer for 66kV transformer substation and assembly method |
| CN116705464A (en) * | 2023-06-27 | 2023-09-05 | 沈阳中天电力电气设备有限公司 | Single-phase 1000Hz transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444380A (en) * | 2019-07-22 | 2019-11-12 | 辽宁中能电力实业集团有限责任公司 | 66kV voltage class Oversea wind power generation single-phase step-up transformer group |
| CN113948286A (en) * | 2021-10-26 | 2022-01-18 | 保定保菱变压器有限公司 | On-load voltage regulation power transformer for 66kV transformer substation and assembly method |
| CN116705464A (en) * | 2023-06-27 | 2023-09-05 | 沈阳中天电力电气设备有限公司 | Single-phase 1000Hz transformer |
| CN116705464B (en) * | 2023-06-27 | 2024-02-13 | 沈阳中天电力电气设备有限公司 | Single-phase 1000Hz transformer |
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Application publication date: 20191122 |