CN104425113A - Novel capacity-modulating transformer - Google Patents
Novel capacity-modulating transformer Download PDFInfo
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- CN104425113A CN104425113A CN201310405778.6A CN201310405778A CN104425113A CN 104425113 A CN104425113 A CN 104425113A CN 201310405778 A CN201310405778 A CN 201310405778A CN 104425113 A CN104425113 A CN 104425113A
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Abstract
The invention provides a novel capacity-modulating transformer, which is formed by a three-phase capacity-modulating transformer body (comprising an iron core and a coil), a corrugation tank, a three-phase on-load capacity-modulating switch and intelligent switch controller, a high-voltage tapping switch, a low-voltage current transformer, a terminal box, a high-voltage bushing, a low-voltage bushing, a tubular oil level indicator and the like. According to the capacity-modulating transformer, under the condition of loading, the connecting manner of the transformer is automatically changed according to the load change, so that the transformer can be adjusted to have large capacity or small capacity. When in high load, the transformer is automatically modulated to have large capacity so as to be operated safely; when in low load, the transformer is modulated to have small capacity, so that the no-load loss is reduced, and the energy-saving effect is obvious. The novel capacity-modulating transformer is mainly applicable to villages, downtown business districts, industrial parks, residential quarters and other places with larger seasonal load or cyclic load change.
Description
Technical field
The present invention relates to the capacitance-adjustable transformer technology of electrical power distribution electric line, particularly a kind of novel capacitance-adjustable transformer.
Background technology
At present, in places such as the rural area that seaonal load or cyclic load change greatly, downtown, industrial area, residential quarters in order to saves energy, while reducing purchase cost, have prioritizing selection capacitance-adjustable transformer.But the major defect of conventional type capacitance-adjustable transformer has following at present:
1, loaded capacity-regulated switch adopts conventional mounting location, and when making Large Copacity, low voltage three-phase D.C. resistance is difficult to balance, makes fuel tank volume larger simultaneously.
2, because need low-tension current to sample, current transformer is installed, low-tension bushing is arranged on oil tank wall, so easy generation leakage of oil point, produce and run dangerous accident, also need current transformer install bin to install in addition and protective current instrument transformer.Turn increase fuel tank overall volume and material cost like this.
3, low-tension bushing is arranged on oil tank wall, and case lid needs out hand hole, and installation difficulty is large.
4, low-voltage bus bar is drawn on the downside of transformer, is inconvenient to construct connect electrical network.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, propose a kind of novel capacitance-adjustable transformer.
The technical scheme realizing above-mentioned purpose is: novel capacitance-adjustable transformer, it is characterized in that, comprise the loaded capacity-regulated switch of three-phase and be arranged on three-phase and have the on-off controller carrying and adjust on empty switch, bushing, low-tension bushing, terminal board, high-voltage tap changer, coil, unshakable in one's determination, low-voltage current mutual inductor, fuel tank, corrugated plate and pipe type oil-level gauge, wherein said coil, iron core is connected by electromagnetic induction, coil, the loaded capacity-regulated switch of three-phase, bushing, low-tension bushing, high-voltage tap changer is connected by copper stranded conductor, low-voltage current mutual inductor, coil low-voltage bus bar is connected by electromagnetic induction, on-off controller, terminal board, low-voltage current mutual inductor is connected by wire, fuel tank, corrugated plate is welded to connect, bushing, low-tension bushing, line terminals box, high-voltage tap changer and pipe type oil-level gauge and fuel tank are bolted.
The present invention's more traditional capacitance-adjustable transformer volume reduces, production cost reduces, fitting operation is simple and convenient, decrease recessive defect makes operation more safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is side-looking structural representation of the present invention.
Fig. 3 is the technology of the present invention background structure schematic diagram.
Fig. 4 is the technology of the present invention background side TV structure schematic diagram.
Embodiment
In order to further illustrate the present invention, be described further below in conjunction with accompanying drawing:
As shown in Figure 1-2, capacitance-adjustable transformer of the present invention, include the compositions such as the loaded capacity-regulated switch of three-phase 1, bushing 2, low-tension bushing 3, terminal board 4, high-voltage tap changer 5, coil 6, iron core 7, low-voltage current mutual inductor 8, fuel tank 11, corrugated plate 12, pipe type oil-level gauge 13, the on-off controller 14 be arranged on the loaded capacity-regulated switch 1 of three-phase, its coil 6, unshakable in one's determination 7 is connected by magnetic induction.The loaded capacity-regulated switch 1 of coil 6, three-phase, bushing 2, low-tension bushing 3, high-voltage tap changer 5 are connected by copper stranded conductor.Low-voltage current mutual inductor 8, coil 6 low-voltage bus bar are connected by electromagnetic induction.On-off controller 14, terminal board 4, low-voltage current mutual inductor 8 are connected by wire.Fuel tank 11, corrugated plate 12 are welded to connect.
With reference to prior art (Fig. 3-4), the present invention has following improvement:
First, due to this novel capacitance-adjustable transformer, the loaded capacity-regulated switch 1 of three-phase is arranged on low-pressure side one Middle face, and unlike the conventional type of Fig. 3, be arranged on fuel tank 11 leftmost side or the rightmost side.Therefore capacitance-adjustable transformer fuel tank 11 volume of the present invention can reduce relatively, so both saves the consumption that steel product cost additionally reduces transformer oil.
Secondly, due to this novel capacitance-adjustable transformer, the loaded capacity-regulated switch 1 of three-phase is arranged on low-pressure side one Middle face, and unlike the conventional type of Fig. 3, be arranged on fuel tank 11 leftmost side or the rightmost side.Therefore low voltage three-phase copper stranded conductor length difference of the present invention is less, and three-phase dc resistance easily balances, even if during imbalance, and also easily trim.
3rd, because the low-voltage current mutual inductor 8 of this novel capacitance-adjustable transformer is arranged on fuel tank internal, namely such low-tension bushing can be arranged on oil tank wall to coordinate low-voltage current mutual inductor 8 as shown in Figure 4, but is arranged in the fuel tank cap of top of oil-tank as Fig. 2.Low-voltage current mutual inductor 8 installation site moves to fuel tank internal outside fuel tank, and this mounting means both can extend the useful life of current transformer 8 and can save current transformer 8 install bin 10, reduced material cost.Low-tension bushing 3 position moves to fuel tank cap from oil tank wall in addition, and namely this mounting means can save the oil tank wall perforate of Fig. 3 and case lid opens hand hole 9, also can reduce leakage of oil point, makes transformer run safety and reliability.
4th, because the low-voltage current mutual inductor 8 of capacitance-adjustable transformer of the present invention is arranged on fuel tank internal, the control circuit of low voltage mutual inductor leads to capacitance switch controller by connecting terminal box 4, controls by the size monitoring three-phase current the connecting group grade that the loaded capacity-regulated switch of three-phase adjusts transformer in real time.
Finally, because the bushing 2 of capacitance-adjustable transformer of the present invention and low-tension bushing 3 are all arranged on transformer top, high-low pressure cable all can access from top, and convenient construction connects electrical network.
The emphasis of capacitance-adjustable transformer of the present invention innovation saves erection unit parts, reduces volume, achieves that production cost reduces, fitting operation is simple and convenient, decrease the recessive limit that lacks makes operation more safe and reliable.This invention can in load conditions, and automatically changing transformer connecting mode according to load variations thus adjusting transformer is Large Copacity or low capacity.During high load capacity, be automatically adjusted to Large Copacity, security of operation; Be adjusted to low capacity no-load loss during underload to reduce, energy-saving effect is remarkable.Mainly be applicable to the place such as rural area, downtown, industrial area, residential quarter that seaonal load or cyclic load change greatly.
Claims (1)
1. novel capacitance-adjustable transformer, is characterized in that, comprising the loaded capacity-regulated switch of three-phase (1) and being arranged on three-phase has the on-off controller (14) carrying and adjust on empty switch (1), bushing (2), low-tension bushing (3), terminal board (4), high-voltage tap changer (5), coil (6), (7) unshakable in one's determination, low-voltage current mutual inductor (8), fuel tank (11), corrugated plate (12) and pipe type oil-level gauge (13), wherein said coil (6), (7) unshakable in one's determination are connected by electromagnetic induction, coil (6), the loaded capacity-regulated switch of three-phase (1), bushing (2), low-tension bushing (3), high-voltage tap changer (5) is connected by copper stranded conductor, low-voltage current mutual inductor (8), coil (6) low-voltage bus bar is connected by electromagnetic induction, on-off controller (14), terminal board (4), low-voltage current mutual inductor (8) is connected by wire, fuel tank (11), corrugated plate (12) is welded to connect, bushing (2), low-tension bushing (3), line terminals box (4), high-voltage tap changer (5) and pipe type oil-level gauge (13) are bolted with fuel tank (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310405778.6A CN104425113A (en) | 2013-09-09 | 2013-09-09 | Novel capacity-modulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310405778.6A CN104425113A (en) | 2013-09-09 | 2013-09-09 | Novel capacity-modulating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104425113A true CN104425113A (en) | 2015-03-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310405778.6A Pending CN104425113A (en) | 2013-09-09 | 2013-09-09 | Novel capacity-modulating transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104425113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4024418A1 (en) * | 2020-12-29 | 2022-07-06 | Hitachi Energy Switzerland AG | Electric device comprising liquid-filled tank and cable box with current measuring device |
-
2013
- 2013-09-09 CN CN201310405778.6A patent/CN104425113A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4024418A1 (en) * | 2020-12-29 | 2022-07-06 | Hitachi Energy Switzerland AG | Electric device comprising liquid-filled tank and cable box with current measuring device |
| WO2022144272A1 (en) | 2020-12-29 | 2022-07-07 | Hitachi Energy Switzerland Ag | Electric device comprising liquid-filled tank and cable box with current measuring device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
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| WD01 | Invention patent application deemed withdrawn after publication |