CN201887341U - Mine flameproof mobile transformer substation - Google Patents
Mine flameproof mobile transformer substation Download PDFInfo
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- CN201887341U CN201887341U CN2010206279792U CN201020627979U CN201887341U CN 201887341 U CN201887341 U CN 201887341U CN 2010206279792 U CN2010206279792 U CN 2010206279792U CN 201020627979 U CN201020627979 U CN 201020627979U CN 201887341 U CN201887341 U CN 201887341U
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- transformer substation
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Abstract
A mine flameproof mobile transformer substation belongs to the field of electric mine flameproof power supply units. The mine flameproof mobile substation comprises a high-voltage power distribution unit (1), a housing (2), a top cover (3), a transformer (5) and a low-voltage protection box (6), wherein the high-voltage power distribution unit (1) and the low-voltage protection box (6) are respectively arranged on the left end and the right end of the housing (2); and the transformer substation is characterized in that the housing (2) adopts a heterotypic wave cylindrical structure, the front side and the back side of the housing (2) are provided with a plurality of wave radiating fins (4), and the top cover (3) is provided with radiating fins which are matched with the structure of the top cover (3). The mine flameproof mobile transformer substation has the advantages that the radiating area is enlarged, explosion suppression is further improved, the service life of the transformer is prolonged, the voltage regulation range is increased, and the like.
Description
Technical field
Flameproof mining mobile transformer substation belongs to the electric power supply unit of flame-proof mine field, is specifically related to a kind of flameproof mining mobile transformer substation.
Background technology
Flameproof mining mobile transformer substation, be called for short the mobile substation, be mainly used in the hazardous area of containing gas, coal-dust explosion under the coal mine, as KBSGZY type flameproof mining mobile transformer substation, as primary voltage 10KV or 6KV, secondary voltage 380V, 660V, 1140V, 3300V use for, converting equipment.The most frequently used configuration in mobile substation is made up of with intelligent low-pressure guard box three parts with high-voltage vacuum distribution equipment and flameproof mining mobile transformer substation flameproof dry type transformer, flameproof mining mobile transformer substation.
At present, there is different problems mostly in the mobile substation of domestic production, it as application number 200520077619.9 Chinese patent, mainly there is following problem: the temperature height, the housing of mobile substation is provided with the corrugated plating fin in the housing both sides mostly, but because heat concentrates on housing top in a large number, causes transformer housing top layer temperature higher, add that heat radiation is bad, finally cause mobile substation shortening in useful life; Loss greatly, not energy-conservation, owing to reasons such as transformer core material, structures, the no-load loss of self is just very big, adds the loss of copper cash itself, consequently the mobile substation no-load loss and the load loss of most of manufacturer production all can be in the standard max scopes; Moreover reactance voltage fluctuation ability, overload capacity are poor, and the third gear pressure regulation is all adopted in high-pressure side, most of mobile substation, promptly+105%, 100%, 95%, the voltage range of adjusting rated voltage ± 5%, in, the power transformation practical application, be subjected to very big restriction at mine.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, the flameproof mining mobile transformer substation that provide a kind of area of dissipation to increase, explosion insulation performance further improves, transformer increases useful life, range of regulation increases.
The technical scheme that its technical problem that solves the utility model adopts is: this flameproof mining mobile transformer substation; comprise high voltage distribution installation, housing, top cover, transformer and low-voltage variation case; high voltage distribution installation and low-voltage variation case are installed in two ends, the housing left and right sides respectively; it is characterized in that: housing adopts special-shaped ripple barrel type structure; two sides are provided with the multi-disc corrugate fin before and after the housing, and the fin that adapts with cap structure is set on the top cover.
The iron core of described transformer is an elliptic cross-section.
The coil of described transformer is provided with five taps.
Described iron core adopts the cold rolling thin silicon steel plates of high-quality high permeability to make, and the flat type copper wire that the coil of described transformer adopts high-quality oxygen-free copper to draw is made, and adopts the C class F insulating material F as wires for bundling, and range of regulation is 90%～115%.
The ripple degree of depth of described corrugate fin is 120mm.The ripple degree of depth increases, and area of dissipation is increased, and it is aging to have slowed down equipment and materials, has prolonged the useful life of transformer, and high wave amplitude, small echo improve its mechanical strength apart from structure greatly, also make explosion insulation performance be further enhanced.
Described high voltage distribution installation and low-voltage variation case adopt PLC control, liquid crystal display.The protection of realization digital intellectualization, and be provided with electronic and manual energy storage combined floodgate dual structure.
Compared with prior art, the beneficial effect that the utility model had is:
1, explosion insulation performance is good.Housing adopts special-shaped ripple barrel type structure, under the equal volume condition, make area of dissipation reach maximization, the ripple degree of depth increases to 120mm, increase both sides corrugate fin quantity simultaneously, set up fin at top cover, will concentrate on housing top heat mostly and shed, improved radiating effect, it is aging to have slowed down equipment and materials, has prolonged the useful life of transformer; The high wave amplitude of housing, small echo improve its mechanical strength apart from structure greatly, can tolerate the above blast impulse power of 1MPa, and effective setting of flame proof gap, explosion suppresion surface makes that also explosion insulation performance is further enhanced.
2, efficient energy-saving.Iron core adopts high-quality that the cold rolling thin silicon steel plates of orientation high permeability is arranged, core section adopts ellipse, under the prerequisite that does not strengthen core length, effectively increase iron core thickness, reduced no-load loss, core structure takes not have punching, complete oblique, step alternate joint structure, upper and lower iron yoke is fixed with low magnetic conduction steel arm-tie, and, reduce noise, no-load loss and no-load current effectively with high strength H200 glass binding strap fastening structure, strengthened the reliability and the advance of core structure.
3, overload capacity is strong.The flat type copper wire of selecting for use high-quality oxygen-free copper to draw, the insulating material of high-quality is selected in the wire insulation wrapping for use, has improved the temperature resistant grade of transformer when reducing resistivity, and load capacity is also significantly strengthened; The third gear pressure regulation pattern that breaks traditions, increase the transformer coil number of turn, increased range of regulation, be increased to five taps design by ± 5% three tap, tap voltage can be from 90%～115% scope adjustment of transformer rated voltage, effectively avoid overtension or the low excessively generation that causes the device damage phenomenon, also increased the anti-short circuit capability of transformer simultaneously; Transformer coil adopts vertically heat radiation air flue, carries out special vacuum pressure impregnation, again through the high temperature baked and cured, strengthened the heat dispersion of coil, guarantee the electric insulation intensity and the mechanical strength of coil, improved the performance of whole transformer greatly, prolonged the useful life of transformer.
4, safe and reliable.The high voltage distribution installation that the mobile substation is used; the low-voltage variation case all adopts the digital intellectualization protection; PLC control; liquid crystal display; possesses overload; short circuit; open circuit; overvoltage; under-voltage; overtemperature; suddenly stop to wait defencive function; and has an isolating-switch locking function; the fault that the low-pressure side feedback is come is protected; has System self-test; failure diagnosis; patrol and examine and memory function; the system of being convenient to uses; safeguard and fault judgement; handle; strengthened defencive function; for the safe operation of various coal mine equipments escorts, improved the fail safe of colliery electrical system to greatest extent.
Description of drawings
Fig. 1 is the utility model front view schematic diagram.
Fig. 2 is the utility model core structure schematic diagram.
Fig. 3 is the A-A cutaway view schematic diagram of the utility model Fig. 2.
Wherein: 1, high voltage distribution installation 2, housing 3, top cover 4, fin 5, transformer 6, low-voltage variation case 7, roller 8, iron core.
Fig. 1～3rd, most preferred embodiment of the present utility model is described further below in conjunction with 1～3 pair of the utility model of accompanying drawing:
Embodiment
With reference to accompanying drawing 1～3:
This flameproof mining mobile transformer substation, form by high voltage distribution installation 1, housing 2, top cover 3, fin 4, transformer 5, low-voltage variation case 6, roller 7 and iron core 8, high voltage distribution installation 1 and low-voltage variation case 6 are installed in two ends, housing 2 left and right sides respectively, roller 7 is equipped with in housing 2 bottoms, housing 2 is special-shaped ripple barrel type structure, two sides, housing 2 front and back are provided with multi-disc corrugate fin 4, and the fin heat radiation is set on the top cover 3, and the ripple degree of depth of corrugate fin 4 is 120mm; The iron core 8 of transformer 5 is the ellipse cross section, and iron core 8 structures employing high-quality has the cold rolling thin silicon steel plates of orientation high permeability to make, and adopts no punching, complete oblique, step alternate joint structure.No punching structure has reduced because of the bad eddy current that causes of core through screw rod insulation; Complete oblique, alternate joint structure, be to shear the grain oriented silicon steel sheet of iron core at 45, lamination also adopts 45 ° of seam butt joints, so that magnetic flux at whole magnetic circuit all along rolling direction, guaranteed the tight type of seam, reduce noise, also reduced no-load loss and no-load current simultaneously, saved the energy to greatest extent; Staircase structural model, when not influencing window height unshakable in one's determination, save silicon steel disc to greatest extent, energy savings.Upper and lower iron yoke is fixed with low magnetic conduction steel arm-tie, and fastening with high strength glass binding strap, the flat type copper wire that the coil of transformer 5 adopts high-quality oxygen-free copper to draw is made, and adopts the C class F insulating material F as wires for bundling, the coil of transformer 5 is provided with five taps, and range of regulation is 90%～115%.
High voltage distribution installation 1 and low-voltage variation case 6 adopt the digital intellectualization protection;, liquid crystal display; adopt import Programmable Logic Controller (PLC control) and man-machine screen (GOT) system of advanced technology, flexible setting for parameters convenience, steady quality, performance sensitivity are reliably, operation and fault picture be intuitively simple and clear.PLC intelligent type comprehensive protector has System self-test, failure diagnosis and memory function, has the RS485 communication function; can detect and transmit digitlization in real time and show running status and faulty indication, combine with the automated network of mine and form more complete mine Automatic monitoring systems.High voltage distribution installation is provided with electronic and manual energy storage combined floodgate dual structure; possess overload, short circuit, open circuit, overvoltage, under-voltage, overtemperature, anxious defencive function such as stop; and has an isolating-switch locking function; high voltage distribution installation and the supporting use of low-voltage variation case simultaneously; the operational mode of having formed international advanced person's low-pressure side fault disjunction transformer high-voltage side power supply; can protect the fault that the low-pressure side feedback is come, have System self-test, failure diagnosis, patrol and examine and memory function.
The utility model transformer the experiment proved that: temperature rise has reduced about 10 °, and energy-saving effect is remarkable, and no-load loss reduces by 10%～15%, and load loss reduces by 5%～10%, and total losses reduce by 8%～12%; Operation is efficient, and voltage is easy to adjust, quick, has well solved the big problem of line drop and voltage fluctuation, and noise reduces.
The course of work is as follows:
High voltage source is inserted the high pressure inlet wire porcelain vase of high voltage distribution installation, and the isolating switch of the high voltage distribution installation that closes, high-voltage mutual inductor are exportable secondary control power supply, and high-pressure side PLC gets electric, to System self-test errorless after, the PLC protection puts into operation.The switch knob of high-pressure side vacuum circuit-breaker closes; connect the high-pressure side of transformer; transformer gets; the correspondent voltage of transformer secondary output simultaneously; the low-voltage variation case puts into operation; put into operation after low-pressure side PLC self check is errorless; simultaneously low-pressure side is used the voltage of equipment; electric current; state of insulations etc. are monitored in real time and are shown; overload to system; short circuit; electric leakage; overvoltage; fault such as under-voltage; carry out logical operation; output shows fault and simultaneously various guard signals is sent on high-tension side PLC, drives the vacuum circuit-breaker separating brake, thereby realizes protection and institute's use equipment of mobile substation are implemented protection and failure monitoring.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection range of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (5)
1. flameproof mining mobile transformer substation; comprise high voltage distribution installation (1), housing (2), top cover (3), transformer (5) and low-voltage variation case (6); high voltage distribution installation (1) and low-voltage variation case (6) are installed in housing (2) two ends, the left and right sides respectively; it is characterized in that: housing (2) adopts special-shaped ripple barrel type structure; two sides are provided with multi-disc corrugate fin (4) before and after the housing (2), and top cover (3) is gone up the fin that adapts with top cover (3) structure is set.
2. flameproof mining mobile transformer substation according to claim 1 is characterized in that: the iron core (8) of described transformer (5) is an elliptic cross-section.
3. flameproof mining mobile transformer substation according to claim 1 is characterized in that: the coil of described transformer (5) is provided with five taps.
3, flameproof mining mobile transformer substation according to claim 1 and 2, it is characterized in that: described iron core (8) adopts the cold rolling thin silicon steel plates of high-quality high permeability to make, the flat type copper wire that the coil of described transformer (5) adopts high-quality oxygen-free copper to draw is made, adopt the C class F insulating material F as wires for bundling, range of regulation is 90%～115%.
4. flameproof mining mobile transformer substation according to claim 1 is characterized in that: the ripple degree of depth of described corrugate fin (4) is 120mm.
5. flameproof mining mobile transformer substation according to claim 1 is characterized in that: described high voltage distribution installation (1) and low-voltage variation case (6) adopt PLC control, liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206279792U CN201887341U (en) | 2010-11-16 | 2010-11-16 | Mine flameproof mobile transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206279792U CN201887341U (en) | 2010-11-16 | 2010-11-16 | Mine flameproof mobile transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887341U true CN201887341U (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206279792U Expired - Lifetime CN201887341U (en) | 2010-11-16 | 2010-11-16 | Mine flameproof mobile transformer substation |
Country Status (1)
| Country | Link |
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| CN (1) | CN201887341U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474894A (en) * | 2013-08-30 | 2013-12-25 | 城开河北科技开发有限公司 | Intelligent mining explosive-proof type high-low voltage power distribution device |
| CN104332278A (en) * | 2013-07-22 | 2015-02-04 | 江苏天威变压器有限公司 | Explosion-proof dry type transformer |
| CN104332288A (en) * | 2013-07-22 | 2015-02-04 | 江苏天威变压器有限公司 | Low-loss power transformer |
| CN108389688A (en) * | 2018-01-29 | 2018-08-10 | 兖州东方机电有限公司 | Mining multifunctional combinations of voltages formula mobile substation |
-
2010
- 2010-11-16 CN CN2010206279792U patent/CN201887341U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332278A (en) * | 2013-07-22 | 2015-02-04 | 江苏天威变压器有限公司 | Explosion-proof dry type transformer |
| CN104332288A (en) * | 2013-07-22 | 2015-02-04 | 江苏天威变压器有限公司 | Low-loss power transformer |
| CN103474894A (en) * | 2013-08-30 | 2013-12-25 | 城开河北科技开发有限公司 | Intelligent mining explosive-proof type high-low voltage power distribution device |
| CN108389688A (en) * | 2018-01-29 | 2018-08-10 | 兖州东方机电有限公司 | Mining multifunctional combinations of voltages formula mobile substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |
|
| CX01 | Expiry of patent term |