CN2458704Y - Step-up transformer for mine - Google Patents
Step-up transformer for mine Download PDFInfo
- Publication number
- CN2458704Y CN2458704Y CN 01203315 CN01203315U CN2458704Y CN 2458704 Y CN2458704 Y CN 2458704Y CN 01203315 CN01203315 CN 01203315 CN 01203315 U CN01203315 U CN 01203315U CN 2458704 Y CN2458704 Y CN 2458704Y
- Authority
- CN
- China
- Prior art keywords
- coil windings
- iron core
- utility
- model
- taps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Ac-Ac Conversion (AREA)
Abstract
The utility model discloses a step-up transformer for mine, comprising an iron core which forms a star shape and coil windings. Three vertical columns of the iron core are respectively provided with one coil winding, and the position from 65 to 100 percents of the number of turns of each coil winding is provided with a plurality of taps. The starting ends of the coil windings are connected together to be used as the zero curve of a power supply, the tap at the 65 percents position is the input end of the power supply, and other taps are step-up output ends. The utility model has the advantages of simple structure, low cost and reliable performance. A joint position adopts gas welding processing, so the bad contact and the exothermic phenomenon can not occur, and the special maintenance is not needed. The utility model can be used for various small mines of which underground voltage is less than 380 V.
Description
The utility model relates to the stepup transformer that a kind of small mine uses.
Various small mines, owing to be subjected to condition restriction, high-voltage line can not be gone into the well, and generally all transformer is installed in well head, when the tunnel surpasses more than 400 meters, will produce voltage drop in various degree, the tunnel is dark more, and voltage drop is serious more, when voltage is lower than below 340 volts, will occur that electric motor starting difficulty, electric current increase, the motor feels hot, even cisco unity malfunction.Though various step-up methods are also arranged in the prior art, reason such as little owing to power, that cost is high, volume is big all can not be suitable for small mine and use.For example: the effect of voltage regulator is supply voltage can be raise, and also supply voltage can be reduced, but owing to adopt " sliding contact formula, " so maximum power 5KW only can not meet the demands.The self coupling step-down transformer, its effect is step-down, can be used as the annex of starting cabinet, is installed in starting cabinet inside, when large and middle size motor starts, is used for reducing starting voltage, reaches the purpose that reduces starting current at last.Owing to only consider starting, so water holdup is designed to 10%, that is to say that stream time is no more than 3 minutes, can not long-term work, so do not satisfy requirement yet.Though transformer efficiency is big, also can boosted voltage, cost is too high again, can not meet the demands equally.
The purpose of this utility model provides a kind of high-power, low-cost, can satisfy the stepup transformer that small mine is used.
The purpose of this utility model is achieved in that it comprises iron core, coil windings, it is characterized in that described iron core is
Type on three vertical columns of iron core, respectively has a coil windings, in 65%, 75%, 85%, 100% of each coil windings number of turn, respectively be provided with tap, the top of coil windings links together and is the zero line of power supply, the tap at 65% place is a power input, and all the other taps are the output that boosts.
Above-mentioned tap and the junction of coil windings are for fixedlying connected.
The utility model compared with prior art has following advantage:
1. simple in structure, every have only a winding mutually.
2. cheap, have only 1/5th of transformer.
3. dependable performance, the joint gas welding is handled, and can not come in contact bad, heating phenomenon.
4. easy to use, general electrician just can install.
5. security maintenance-free has only a low pressure winding, does not have the high pressure winding, so safety; Need not be oil-filled, also just non-maintaining.As electric welding machine, only otherwise directly drench with rain, just can not be bad.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
The stepup transformer power designs is 50KW, and iron core adopts DQl51-35 cold rolling electric sheet, totally be "
" type, 110 millimeters of vertical stem stem diameters, window is high 250 millimeters, 200 millimeters of stem stem centre-to-centre spacing, upper and lower horizontal stem stem diameter still is 110 millimeters.Winding partly adopts 2.8 * 11.8 millimeters flat type copper wire, around 113.5 circles, and respectively extracts a stature out at 84 circles, 96.5 circles, 104.5 circles, 113.5 circle places respectively on each stem stem.The top 1 of three-phase is connected together and is " asterism ", extracts the zero line that is mains lighting supply; Three 84 circle place taps 2 extract, and are respectively three-phase power input end; It promptly is to rise 15% output that three 96.5 circle taps 3 extract, it promptly is to rise 25% output that 4 of three 104.5 circles extract, three 113.5 circle taps 5, just three tails extract respectively, promptly are to rise 35% output (coil turn is a proportional relationship with the amplitude of boosting; And all should be that benchmark calculates) with the power input.During use, three power inputs are connect original power supply, the three groups of output users in back of boosting can through simple computation, select wherein one group for use according to magnitude of voltage on the spot, output voltage is remained between the 380V-400V get final product.For example certain iron ore virtual voltage is 310V, if raise 25%, is 387.5V, and output should connect the tap of 104.5 circles so.If supply voltage is 340V, that just should connect the tap of 96.5 circles, as calculated, should be 391V after this tap is boosted.Single-phase electric consumption on lighting, i.e. 220V power supply, connection is a termination " asterism ", any phase of another termination three-phase output end.For safety, shell must reliable ground during use, and making provision against emergencies gets an electric shock hurts sb.'s feelings.
Claims (3)
1. mining stepup transformer, it comprises iron core, coil windings, it is characterized in that described iron core (6) is
Type, on three vertical columns (7) of iron core (6), one coil windings (8) is respectively arranged, there are several taps at 65%-100% place in each coil windings number of turn, the top of coil windings (1) links together and is the zero line of power supply, the tap at 65% place (2) is a power input, and all the other taps are the output that boosts.
2. a kind of mining stepup transformer as claimed in claim 1 is characterized in that described coil windings (8) has tap (2,3,4,5) at 65%, 75%, 85% and 100% place of the number of turn.
3. a kind of mining stepup transformer as claimed in claim 1 or 2, the junction that it is characterized in that described tap (2,3,4,5) and coil windings (8) is for fixedlying connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01203315 CN2458704Y (en) | 2001-01-18 | 2001-01-18 | Step-up transformer for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01203315 CN2458704Y (en) | 2001-01-18 | 2001-01-18 | Step-up transformer for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2458704Y true CN2458704Y (en) | 2001-11-07 |
Family
ID=33624833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01203315 Expired - Fee Related CN2458704Y (en) | 2001-01-18 | 2001-01-18 | Step-up transformer for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2458704Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273215A (en) * | 2018-10-15 | 2019-01-25 | 湖南中良电气设备有限公司 | A kind of mining step-up transformer novel voltage-regulating method of autocoupling type |
| CN109524223A (en) * | 2018-10-15 | 2019-03-26 | 湖南中良电气设备有限公司 | A kind of pressure regulation method of autocoupling type mining transformer complete machine |
-
2001
- 2001-01-18 CN CN 01203315 patent/CN2458704Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273215A (en) * | 2018-10-15 | 2019-01-25 | 湖南中良电气设备有限公司 | A kind of mining step-up transformer novel voltage-regulating method of autocoupling type |
| CN109524223A (en) * | 2018-10-15 | 2019-03-26 | 湖南中良电气设备有限公司 | A kind of pressure regulation method of autocoupling type mining transformer complete machine |
| CN109524223B (en) * | 2018-10-15 | 2022-02-18 | 湖南中良电气设备有限公司 | Voltage regulating method for self-coupling mine transformer complete machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203377066U (en) | SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer | |
| CN2458704Y (en) | Step-up transformer for mine | |
| CN205487642U (en) | Oil -immersed transformer | |
| CN205810531U (en) | A kind of transformator for power equipment | |
| CN2930095Y (en) | Power saving controller for oil field oil pumping unit | |
| CN201615585U (en) | Electromagnetic induction quick-heating type water heater | |
| CN201956910U (en) | Elevator control power supply device based on toroidal transformer | |
| CN2135578Y (en) | Electrolysis power source | |
| CN2492171Y (en) | Domestic electric shower using safety voltage | |
| CN208655369U (en) | A kind of novel rectifying transformer device structure | |
| CN2307342Y (en) | Step-up transformer | |
| CN2241771Y (en) | infrared, induction petroleum electric heating device | |
| CN216192776U (en) | Power supply rectifier unit | |
| CN202695080U (en) | Continuous main transformer power supply structure for substation | |
| CN108806957A (en) | A kind of novel extra-high voltage water cooling combined transformer and its transport assemble method | |
| CN220440385U (en) | Medium-frequency synchronous power generation transformation extra-high voltage direct current transmission system | |
| CN211606427U (en) | Motor power conversion energy-saving control device of oil pumping unit | |
| CN2897705Y (en) | Automatic thermal-insulating oil tank | |
| CN202632989U (en) | Transformer | |
| CN2319954Y (en) | Energy saving protector | |
| CN2128813Y (en) | Under-voltage regulator for black and white TV set | |
| CN208889428U (en) | A kind of novel electrical engineering radiator | |
| CN2495060Y (en) | Power-saving device for three-phase AC asynchronous motor | |
| CN2435687Y (en) | Electromagnetic inductive boiler | |
| CN207588265U (en) | A kind of electric power box convenient for fast break |
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 |