CN204650854U - A kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating - Google Patents
A kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating Download PDFInfo
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- CN204650854U CN204650854U CN201520301055.6U CN201520301055U CN204650854U CN 204650854 U CN204650854 U CN 204650854U CN 201520301055 U CN201520301055 U CN 201520301055U CN 204650854 U CN204650854 U CN 204650854U
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- ratio bridging
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- 230000000007 visual effect Effects 0.000 title claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 58
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 201000006549 dyspepsia Diseases 0.000 abstract description 3
- 230000007704 transition Effects 0.000 description 14
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The utility model discloses a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating; comprise three-phase load ratio bridging switch, three-phase transformer, voltage table case and protective cover; wherein; three-phase transformer is provided with in protective cover; a winding switching three-phase load ratio bridging switch of three-phase transformer; three-phase load ratio bridging switch is connected in the motor drive mechanism outside housing, and voltage table case connects a winding and the Secondary Winding of three-phase transformer.Solve the load ratio bridging switch complicated structure in teaching, training dexterously, switching principle indigestion, and in actual applications, load ratio bridging switch and transformer by overall package in oil tank of transformer, intuitively cannot see inner structure, be not easy to understand its switching principle problem.By to the observation of this model and practical operation, student or trainee can to the inner structure of three-phase load ratio bridging switch have clear, be familiar with intuitively, to its switching principle have more vivid, profoundly understand.
Description
Technical field
The utility model relates to a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating.
Background technology
When power system reactive power abundance, load ratio bridging switch can make transformer when not interruptible load, by regulating the position of transformer tap winding tap, thus changing the turn ratio of a winding and Secondary Winding, reaching the object of regulation voltage.Profit in this way regulation voltage is a kind of method easily and effectively controlling the quality of power supply, and therefore, the transformer overwhelming majority of current transformer station adopts the transformer with load ratio bridging switch.
Be engaged in the staff of electrical test and substation equipment maintenance and repair before carrying out testing to load ratio bridging switch and overhauling, must its inner structure clear and definite and principle of work.But, load ratio bridging switch complicated structure, switching principle indigestion, and in actual applications, load ratio bridging switch and transformer by overall package in oil tank of transformer, intuitively cannot see inner structure, be not easy to understand its switching principle, this has become one of key issue of restriction teaching or training.
Utility model content
The utility model is in order to solve the problem, propose a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating, this device is by the observation of this model and practical operation, student or trainee can to the inner structure of three-phase load ratio bridging switch have clear, be familiar with intuitively, to its switching principle have more vivid, profoundly understand.
To achieve these goals, the utility model adopts following technical scheme:
A kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating; comprise three-phase load ratio bridging switch, three-phase transformer, voltage table case and protective cover; wherein; three-phase transformer is provided with in protective cover; a winding switching three-phase load ratio bridging switch of three-phase transformer; three-phase load ratio bridging switch is connected in the motor drive mechanism outside housing, and voltage table case connects a winding and the Secondary Winding of three-phase transformer.
Described three-phase transformer adopts three-phase three-limb iron core, and A phase, B phase, C phase winding are set on tri-phase iron core post, and the tap of tap winding, draws from a winding, and a phase, b phase, c phase Secondary Winding are set in below tri-phase iron core post.
Described iron core is silicon steel material, and a described winding, Secondary Winding are copper product.
Described three-phase load ratio bridging switch comprises tap selector, change-over switch and motor drive mechanism three part, the tap of tap winding is drawn from a winding, be connected on the static contact of tap selector, described change-over switch moving contact, static contact have employed the mode of longitudinal arrangement, and control its switch speed; Described motor drive mechanism comprises power line jack, switch, button is pressed in gear adjustment, tap selector self-recoverage presses button and change-over switch self-recoverage presses button, tap selector self-recoverage is pressed button and change-over switch self-recoverage and is pressed button and be used for respectively controlling the action of load ratio bridging switch tap selector, change-over switch, so that student or trainee understand the substep course of action of load ratio bridging switch.
Described voltage table case inside installing 6 voltage tables, measure three-phase winding U respectively
aO, U
bO, U
cOwith three-phase Secondary Winding U
ax, U
by, U
czmagnitude of voltage, embodied the validity of load ratio bridging switch pressure regulation by the change of magnitude of voltage.
Described protective cover is transparent acrylic material, plays the effect of protective device inner structure transparent visual again.
Described protective cover is arranged with pulley.
The beneficial effects of the utility model are:
(1) a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating is provided, solve the load ratio bridging switch complicated structure in teaching, training dexterously, switching principle indigestion, and in actual applications, load ratio bridging switch and transformer by overall package in oil tank of transformer, intuitively cannot see inner structure, be not easy to understand its switching principle problem;
(2) by the observation of this model and practical operation, student or trainee can to the inner structure of three-phase load ratio bridging switch have clear, be familiar with intuitively, to its switching principle have more vivid, profoundly understand.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present utility model.
Fig. 2 is tap selector front elevation.
Fig. 3 is tap selector side view.
Fig. 4 is the stretch-out view of change-over switch A phase.
Fig. 5 is motor drive mechanism control panel schematic diagram.
Wherein, 1---three-phase three-limb iron core, 2---a winding A phase, 3---a winding B phase, 4---a winding C phase, 5---Secondary Winding a phase, 6---Secondary Winding b phase, 7---Secondary Winding c phase, 8---change-over switch, 9---tap selector, 10---motor drive mechanism, 11---voltage table case, 12---protective cover, 13---pulley, 14---tap selector upper flange, 15---tap selector lower flange, 16---tap selector static contact, 17---insulation lath, 18---polarity selector negative terminal, 19---polarity selector positive terminal, 20---odd number layer connecting lead wire, 21---odd number layer main contact static contact, 22---odd number layer main contact moving contact, 23---the main switching contact moving contact of odd number layer, 24---the main switching contact static contact of odd number layer, 25---odd number layer transition resistance contact moving contact, 26---odd number layer transition resistance contact static contact, 27---odd number layer transition resistance, 28---even numbers layer connecting lead wire, 29---even numbers layer transition resistance contact moving contact, 30---even numbers layer transition resistance contact static contact, 31---even numbers layer transition resistance, 32---the main switching contact moving contact of even numbers layer, 33---the main switching contact static contact of even numbers layer, 34---even numbers layer main contact moving contact, 35---even numbers layer main contact static contact, 36---neutral point leading-out terminal, 37---change-over switch cover plate, 38---power line jack, 39---switch, 40---tap selector self-recoverage presses button, 41---change-over switch self-recoverage presses button, 42---gear regulates and presses button, 43---motor drive mechanism casing.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1; a visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating, mainly comprises three-phase three-limb iron core 1, winding A phase 2, winding B phase 3, winding C phase 4, Secondary Winding a phase 5, Secondary Winding b phase 6, Secondary Winding c phase 7, change-over switch 8, tap selector 9, motor drive mechanism 10, voltage table case 11, protective cover 12 and a pulley 13.
A described winding A phase 2, winding B phase 3 and a winding C phase 4 are sleeved on three-phase three-limb iron core 1, and Secondary Winding a phase 5, Secondary Winding b phase 6 and Secondary Winding c phase 7 are sleeved on three-phase three-limb iron core 1, are positioned at a winding bottom.Transformer core and winding are fixed on protective cover 12 base plate.
The tap of tap winding is drawn from a winding, is connected on the static contact of tap selector 8, and draw 6 connecting lead wires from the moving contact of tap selector 8, be connected in change-over switch 9, change-over switch 9 is lifted on protective cover 12.
The motor drive mechanism 10 of load ratio bridging switch is fixed on the side of protective cover 12.
Install 6 voltage tables in voltage table case 11, these 6 voltage tables are in parallel with winding A phase, B phase C phase and Secondary Winding a phase, b phase, a c phase respectively, measure each phase winding both end voltage in real time.
Protective cover 12 adopts transparent acrylic material manufacture, plays the effect of protective device inner structure transparent visual again.
Below protective cover 12 base plate, 4 pulleys are installed, so that shift position as required.
Be illustrated in figure 2 the front elevation of three-phase load ratio bridging switch tap selector, mainly comprise upper flange 14, lower flange 15, static contact 16 and insulation lath 17.Insulation lath 17 is fixed between upper flange 14 and lower flange 15, and static contact 16 is fixed on insulation lath 17, and for a three-phase load ratio bridging switch, one has 30 such static contacts.Tap winding odd number tap 1,3,5,7,9 is connected with the static contact of tap selector odd number layer successively; Tap winding even numbers tap 2,4,6,8 and main winding tail end k are connected with the static contact of tap selector even numbers layer successively.
Fig. 4 is the stretch-out view of change-over switch A phase, becomes 120 degree be uniformly distributed for three-phase load ratio bridging switch ABC three-phase change-over switch in space.As can be seen from the figure, change-over switch mainly comprises: odd number layer connecting lead wire 20, odd number layer main contact static contact 21, odd number layer main contact moving contact 22, the main switching contact moving contact 23 of odd number layer, the main switching contact static contact 24 of odd number layer, odd number layer transition resistance contact moving contact 25, odd number layer transition resistance contact static contact 26, odd number layer transition resistance 27, even numbers layer connecting lead wire 28, even numbers layer transition resistance contact moving contact 29, even numbers layer transition resistance contact static contact 30, even numbers layer transition resistance 31, the main switching contact moving contact 32 of even numbers layer, the main switching contact static contact 33 of even numbers layer, even numbers layer main contact moving contact 34, even numbers layer main contact static contact 35, neutral point leading-out terminal 36 and change-over switch cover plate 37.
Odd number layer connecting lead wire 20 and even numbers layer connecting lead wire 28 are drawn from the central insulation sleeve of change-over switch.Described main contact is made up of silver-plated brass material, and described main switching contact and transition resistance contact are made up of tungsten-copper alloy, and described transition resistance is formed by NI-G filament winding system.Described moving contact becomes genesis analysis with static contact on locus.All moving contacts are connected on neutral point leading-out terminal 36 by copper conductor, and neutral point leading-out terminal 36 is fixed on change-over switch cover plate 37.
Fig. 5 is motor drive mechanism control panel schematic diagram, and motor drive mechanism control panel mainly comprises power line jack 38, switch 39, tap selector self-recoverage presses button 40, change-over switch self-recoverage presses button 41, gear regulates and presses button 42 and motor drive mechanism casing 43.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (7)
1. a visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating; it is characterized in that: comprise three-phase load ratio bridging switch, three-phase transformer, voltage table case and protective cover; wherein; three-phase transformer is provided with in protective cover; a winding switching three-phase load ratio bridging switch of three-phase transformer; three-phase load ratio bridging switch is connected in the motor drive mechanism outside housing, and voltage table case connects a winding and the Secondary Winding of three-phase transformer.
2. a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating as claimed in claim 1, it is characterized in that: described three-phase transformer adopts three-phase three-limb iron core, A phase, B phase, C phase winding are set on tri-phase iron core post, the tap of tap winding, draw from a winding, a phase, b phase, c phase Secondary Winding are set in below tri-phase iron core post.
3. a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating as claimed in claim 2, it is characterized in that: described iron core is silicon steel material, a described winding, Secondary Winding are copper product.
4. a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating as claimed in claim 1, it is characterized in that: described three-phase load ratio bridging switch comprises tap selector, change-over switch and motor drive mechanism three part, the tap of tap winding is drawn from a winding, be connected on the static contact of tap selector, described change-over switch moving contact, static contact have employed the mode of longitudinal arrangement, and control its switch speed; Described motor drive mechanism comprises power line jack, switch, gear regulate press button, tap selector self-recoverage presses button and change-over switch self-recoverage presses button, tap selector self-recoverage is pressed button and change-over switch self-recoverage and is pressed button and be used for respectively controlling the action of load ratio bridging switch tap selector, change-over switch.
5. a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating as claimed in claim 1, is characterized in that: described voltage table case inside installing 6 voltage tables, measures three-phase winding U respectively
aO, U
bO, U
cOwith three-phase Secondary Winding U
ax, U
by, U
czmagnitude of voltage, embodied the validity of load ratio bridging switch pressure regulation by the change of magnitude of voltage.
6. a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating as claimed in claim 1, is characterized in that: described protective cover is transparent acrylic material.
7. a kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating as claimed in claim 6, is characterized in that: described protective cover is arranged with pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301055.6U CN204650854U (en) | 2015-05-12 | 2015-05-12 | A kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301055.6U CN204650854U (en) | 2015-05-12 | 2015-05-12 | A kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204650854U true CN204650854U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520301055.6U Expired - Fee Related CN204650854U (en) | 2015-05-12 | 2015-05-12 | A kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating |
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| Country | Link |
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| CN (1) | CN204650854U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470650A (en) * | 2018-03-05 | 2018-08-31 | 郭嘉川 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
| CN109087568A (en) * | 2018-09-17 | 2018-12-25 | 国网青海省电力公司检修公司 | Transformer analog training apparatus |
-
2015
- 2015-05-12 CN CN201520301055.6U patent/CN204650854U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470650A (en) * | 2018-03-05 | 2018-08-31 | 郭嘉川 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
| CN108470650B (en) * | 2018-03-05 | 2019-08-20 | 丁世轩 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
| CN109087568A (en) * | 2018-09-17 | 2018-12-25 | 国网青海省电力公司检修公司 | Transformer analog training apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160512 |