CN2427874Y - Three phase box like transformer - Google Patents
Three phase box like transformer Download PDFInfo
- Publication number
- CN2427874Y CN2427874Y CN 00212161 CN00212161U CN2427874Y CN 2427874 Y CN2427874 Y CN 2427874Y CN 00212161 CN00212161 CN 00212161 CN 00212161 U CN00212161 U CN 00212161U CN 2427874 Y CN2427874 Y CN 2427874Y
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- transformer
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Abstract
The utility model relates to a three phase box like a transformer. An iron core of the utility model is three-phase five-pole. A wiring group of a coil is delta /gamma 0-11. The middle of the utility model is in no-load voltage regulaiton. A high voltage lead-out wire and a low voltage lead-out wire of the utility model are arranged at the same side. The high voltage lead-out wire adopts a structure of an elbow type inserting shifting block. The structure is completely sealed at a box type transformer the front part of which is provided with the interval of high voltage distribution and low voltage distribution. The no-load loss ration of the utility model is 15% less than S10. The load loss ratio of the utility model is 10% less than S10. The utility model has the advantage of overload capacity. The utility model can long run under the condition of over 25% capacity.
Description
The utility model relates to a kind of distribution transformer, the all-sealed box type transformer of particularly a kind of combination.
China's oil immersed type transformation is S at present
9, S
10Two kinds of energy saving transformers, wiring group is respectively Y/Y
0-12, being out line type structure, iron core is the three-phase three-column structure, and this transformer has neutral point displacement, and supply power voltage is of low quality, super appearance ability minor defect.
The purpose of this utility model is that disclosing a kind of 10KV to society is subjected to electricity, Δ/Y
0-11Tie lines, iron core are three-phase and five-pole, high-tension coil middle part No-load changer, and low pressure is the oil-immersed type transformer of paper tinsel formula winding, the high-low pressure lead-out wire is in the same side and unique spacer is arranged, and has super 25% the box type transformer that holds.
The purpose of this utility model is achieved through the following technical solutions: the three-phase box type transformer, form by three-phase and five-pole iron core, high pressure middle part voltage regulation coil, low blocking coiling, no on-load shunting switch, and be respectively Δ/Y by the line group
0-11Radiating fin of transformer is corrugated or gilled radiator, the high-low pressure lead-out wire divides high-low pressure at interval in transformer the same side, straight-through sleeve pipe of high pressure lead-out wire high pressure and elbow type cable connect-disconnect plug, the three-phase five-limb iron core, full mitered method, the radiator of transformer is installed in the rear side and the both sides of casing, and the high-low pressure lead-out wire is in the same side and unique spacer arranged, high pressure is drawn and is adopted straight-through cover pipe bend type cable connect-disconnect plug to form hermetically sealed composite type box type transformer.Sleeve pipe and tank wall, tank wall and case lid sealing place all adopt the cork rubber cushion to be equipped with two-tube fluid sealant sealing.
Advantage of the present utility model and good effect are:
Shell structure has American box transforming station structure: the high and low pressure lead-out wire is in the same side, and unique spacer arranged, the high pressure lead-out wire adopts straight-through sleeve pipe and elbow type cable connect-disconnect plug, the iron core of transformer is a three-phase and five-pole, high-quality silicon steel sheet, full diagonal built, the specified electricity of high-tension coil is 10.5KV, middle part No-load changer 2 * ± 2.5%, low-voltage coil is a paper tinsel formula winding, the tie lines group is respectively Δ/Y
0-11, because Electromagnetic Design is reasonable, the homemade energy-conservation S of its loss ratio
10Transformer noload losses is low by 15%, and load loss is low by 10%, and has super appearance 25%, full-load run for a long time.The device body of transformer and insulating oil and outside air are isolated fully, add antioxidant in the oil, can guarantee that transformer oil long-time running pH value remains unchanged.This box type transformer does not have conservator.So reduced the fuel tank height greatly.Oil volume expands and dwindles problem when changing in order to ensure oil temperature, adopts pressure to put valve, solves the change in volume problem of oil.
Description of drawings is as follows:
Fig. 1 is the utility model main wiring diagram;
Fig. 2 goes out line chart for the utility model terminal;
Fig. 3 goes out line chart for the utility model looped network;
Fig. 4 is the utility model shell front view;
Fig. 5 is the utility model shell left view;
Fig. 6 is the utility model shell vertical view.
Below in conjunction with accompanying drawing the utility model is further described:
The present invention mainly is made up of transformer body, fuel tank, high and low voltage electric distribution interval three parts.
One, transformer
Transformer is by three-phase and five-pole iron core, Δ/Y
0-11Full mitered structure is adopted in wiring, iron core, high pressure primary winding middle part No-load changer, and low-voltage coil paper tinsel formula winding adopts three-phase and five-pole structure, wiring Δ/Y by the what iron core
0-11Make the zero sequence magnetic flux will be, so casing generate heat in two side columns circulations and without shell.Also reduced simultaneously transformer loss.
The transformer connection group is Δ/Y
0-11, having output voltage quality height, neutral point does not drift about, the good advantage of lightning protection properties.When threephase load was uneven, because zero-sequence current and triple harmonic current can circulate in the closed-loop path in the high pressure winding, total zero sequence magnetic potential on each iron core column and triple-frequency harmonics magnetic potential were zero no better than.So the low pressure neutral point does not drift about.Each phase voltage quality height; Same lightning current also can circulate in the closed-loop path of high pressure winding, and the total magnetic potential of lightning current on each iron core column is zero no better than, has eliminated positive inverse transformation overvoltage, so lightning protection properties is good.
High-tension coil adopts the middle part No-load changer, and tap place electric potential gradient is little, guarantees high insulating property.The low pressure winding adopts paper tinsel formula winding, and it is strong to have an anti-short circuit capability.Can resist warp-wise and the axial electric power that produces owing to short circuit.The choosing of first and second winding coil current density is lower, so the transformer overload ability is strong, design has super 25% the overload capacity of holding.
HV Terminal:
HV Terminal is furnished with special-purpose straight-through sleeve pipe, connects the elbow type cable connect-disconnect plug with on-load switch function with what.Sleeve pipe and elbow type cable connect-disconnect plug join, and charged electricity part is sealed in the insulator, and outer semiconductor layer of elbow molded cannula and earth mat join, and form all insulation structure.The binding post surface is not charged.The reliable personal safety that guarantees.
Box type transformer the key technical indexes: 1, rated voltage, 10.5KV secondary 0.4KV/0.23KV2, maximum operating voltage 12KV3, rated frequency 50HZ4, rated capacity 100,150,225,315,400,500,630,800KVA5,1 minute industrial frequency withstand voltage 35KV6, no-load loss compare S
10Low by 15%7, load loss compares S
10Low by 10%8, the same S of impedance voltage
109, connect group Δ/Y
0-1110, no-load tap pressure regulation 10.5KV ± 2 * 2.5%11, overload capacity allow overload 25% long-time running 12, allow 65 ℃ 13 of temperature rise, ambient temperature-30 ℃-+40 ℃
The box type transformer using method:
(1). at first will not have on-load shunting switch and put what rated voltage tap position.
(2). check high pressure winding AB with universal instrument, BC, resistance is approaching between the CA terminal.
(3). the elbow molded cannula is inserted on the straight-through sleeve pipe of high pressure.
(4). low pressure is exported master switch put the branch position.
(5). whether open vacuum load switch by height and send electricity to box type transformer, it is normal to measure output low pressure.Low-voltage load can be served as no abnormal, just box type transformer can normally put into operation.
Claims (2)
1, three-phase box type transformer is made up of three-phase and five-pole iron core, high pressure middle part voltage regulation coil, low blocking coiling, no on-load shunting switch, it is characterized in that being respectively Δ/Y by the line group
0-11Radiating fin of transformer is corrugated or gilled radiator, the high-low pressure lead-out wire is in transformer the same side, divide high-low pressure at interval, straight-through sleeve pipe of high pressure lead-out wire high pressure and elbow type cable connect-disconnect plug, three-phase five-limb iron core, full mitered method, the radiator of transformer is installed in the rear side and the both sides of casing, and the high-low pressure lead-out wire is in the same side and have unique spacer, high pressure to draw the straight-through cover of employing pipe bend type cable connect-disconnect plug composition.
2, three-phase box type transformer as claimed in claim 1 is characterized in that the transformer housing is the sealing shape, sleeve pipe and tank wall, and tank wall and case lid sealing place all adopt the cork rubber cushion to be equipped with two-tube fluid sealant sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212161 CN2427874Y (en) | 2000-06-09 | 2000-06-09 | Three phase box like transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212161 CN2427874Y (en) | 2000-06-09 | 2000-06-09 | Three phase box like transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2427874Y true CN2427874Y (en) | 2001-04-25 |
Family
ID=33578724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00212161 Expired - Fee Related CN2427874Y (en) | 2000-06-09 | 2000-06-09 | Three phase box like transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2427874Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547702C (en) * | 2004-12-28 | 2009-10-07 | 上海置信电气股份有限公司 | A kind of high-voltage terminal structure of oil immersion-type distribution transformer |
-
2000
- 2000-06-09 CN CN 00212161 patent/CN2427874Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547702C (en) * | 2004-12-28 | 2009-10-07 | 上海置信电气股份有限公司 | A kind of high-voltage terminal structure of oil immersion-type distribution transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |