CN202887958U - On-load multistage controllable-capacity tap switch - Google Patents
On-load multistage controllable-capacity tap switch Download PDFInfo
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- CN202887958U CN202887958U CN 201220151730 CN201220151730U CN202887958U CN 202887958 U CN202887958 U CN 202887958U CN 201220151730 CN201220151730 CN 201220151730 CN 201220151730 U CN201220151730 U CN 201220151730U CN 202887958 U CN202887958 U CN 202887958U
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Abstract
The utility model provides an on-load multistage controllable-capacity tap switch which settles a problem that the prior-art on-load switch can not adjust more than three capacities. The on-load multistage controllable-capacity tap switch is characterized in that: the transformer capacity is changed when numbers of turns of high-voltage coil and low-voltage coil of a transformer winding are changed simultaneously; and therefore three sets of low-voltage moving contact and a set of low-voltage leading-out neutral point moving contact in a low-voltage moving contact system are connected through a low-voltage conductive rod; the low-voltage leading-out neutral point moving contact is equipped on an insulating rotating shaft; a low-voltage static-contact system of each phase is composed of N low-voltage static contacts; and a high-voltage static-contact system of each phase is composed of N high-voltage static contacts. When an insulating rotating shaft rotates, all moving contacts rotate synchronously and are switched to corresponding static contacts. The numbers of turns of the high-voltage coil and the low-voltage coil are simultaneously changed for further changing the transformer capacity, thereby realizing transformer adjustment among N capacities.
Description
Technical field
The utility model relates to a kind of loaded capacity-regulated shunting switch, specifically by changing simultaneously the number of turn of high-pressure side and low-voltage side coil, the shunting switch of multistage change transformer capacity.
Background technology
Present loaded switch (referring to CN101692393A) can have two capacity of size that carry the adjusting transformer, specifically corner connection operation during the large capacity in high-pressure side, and the low capacity clock star connects operation; Low-pressure side is divided into three sections of I, II and III, three sections series operations during low capacity, during large capacity after I and the parallel connection of II section again with the series operation of III section.This switch is implemented in the adjusting of transformer between two capacity of size under the state of carrying by above-mentioned connection, and it can not be implemented in the adjusting of transformer between two above capacity under the state of carrying.
Summary of the invention
In order to have realized carrying multistage capacity transfer, the purpose of this utility model is to provide a kind of multistage capacity transfer shunting switch of carrying that has.
According to Liaoning Science Press " in the power transformer handbook 490-491 page or leaf appendix S9-10kv and following Uniting series low-loss power transformer main technical detail (1985), do following form.
| Capacity | Voltage | Connect group | The high pressure number of turn | The low pressure number of turn |
| … | … | … | … | … |
| 200KVA | 10KV | Y/yn0 | 971 | 37 |
| 250KVA | 10KV | Y/yn0 | 865 | 33 |
| 315KVA | 10KV | Y/yn0 | 761 | 29 |
| 400KVA | 10KV | Y/yn0 | 682 | 26 |
| … | … | … | … | … |
As seen, when changing simultaneously, the number of turn of the high-voltage coil and low-voltage coil of Transformer Winding will change transformer capacity.Applicable too with should connect group and be D/yn0 the time.
The purpose of this utility model has been achieved in that carrying multistage capacity transfer shunting switch comprises high pressure movable contact system and high pressure static contact system, low pressure movable contact system and low pressure static contact system, the high pressure movable contact system comprises the three-phase high-voltage moving contact, it is characterized in that: three groups of low pressure moving contacts in the low pressure movable contact system with is connected group low pressure and draws the neutral point moving contact and connected by a low voltage conductive bar, low pressure is drawn the neutral point moving contact and is installed in the insulation rotating shaft; Every phase low pressure static contact system is by N(2≤N≤10) individual low pressure fixed contact forms; Every phase high pressure static contact system forms (quantity of low pressure fixed contact is identical with the quantity of high pressure fixed contact) by N high pressure fixed contact; Low pressure is drawn neutral point fixed contact and low pressure, and to draw the neutral point moving contact corresponding, low pressure is drawn the neutral point fixed contact and is comprised, metallic conductor is arranged in the insulation burrel, metallic conductor is fixed on low pressure and draws on the neutral point fixed contact, low pressure is drawn the neutral point moving contact and is done the contact slip at metallic conductor, and low pressure draws the neutral point moving contact and low pressure is drawn the dynamic/static contact that the neutral point fixed contact consists of neutral point.
During use with the tap (comprising an end) of each high pressure fixed contact connection transformer high-pressure side coil, a tap of each low pressure fixed contact connection transformer low-voltage side coil.Insulation rotating shaft rotation in the utility model, all high and low pressure moving contact synchronous rotaries switch on the corresponding high and low pressure fixed contact, change simultaneously the number of turn of transformer high and low pressure lateral coil, and then change transformer capacity.
Compared with prior art, good effect of the present utility model is: owing to be provided with N fixed contact, so can realize the adjusting of transformer between N capacity.
Description of drawings
Fig. 1 is that the connection group is the structural representation of the present utility model of Y/yn0.
Fig. 2 is that Fig. 1 is along the cutaway view of A-A direction.
Fig. 3 is that Fig. 1 is along the cutaway view of B-B direction.
Fig. 4 is the electrical schematic diagram of Fig. 1.
Fig. 5 is that the connection group is the structural representation of the present utility model of D/yn0.
Fig. 6 is the electrical schematic diagram of Fig. 5.
Embodiment
Embodiment one: the connection group is Y/yn0, and namely the high-pressure side is that star connects
Referring to Fig. 1, it comprises transmission mechanism and quick mechanism 1, insulation rotating shaft 2, insulation burrel 3, high pressure movable contact system, high pressure static contact system, low pressure movable contact system and low pressure static contact system, high pressure movable contact system high pressure static contact system connects design by star, specifically, three groups of (phase) high pressure moving contacts 4 in the high pressure movable contact system are connected by a high-voltage conductive rod 13; Three groups of low pressure moving contacts 7 in the low pressure movable contact system with is connected group low pressure and draws neutral point moving contact 10 and connected by a low voltage conductive bar 12, low pressure is drawn the neutral point moving contact and is installed in the insulation rotating shaft 2; Referring to Fig. 2, every phase high pressure static contact system is comprised of four high pressure fixed contacts 6, a tap (referring to Fig. 4) of each high pressure fixed contact connection transformer high-pressure side coil; Every phase low pressure static contact system forms (structure of the dynamic and static contact of low pressure, shape identical with Fig. 2), a tap (comprising neutral point, referring to Fig. 4) of each low pressure fixed contact connection transformer low-voltage side coil by four low pressure fixed contacts 9; Referring to Fig. 3, drawing the corresponding low pressure of neutral point moving contact 10 with low pressure draws the neutral point fixed contact and is, metallic conductor 14 is arranged in the insulation burrel, metallic conductor is fixed on low pressure and draws on the neutral point fixed contact 11, low pressure is drawn the neutral point moving contact and is done the contact slip at metallic conductor, and low pressure draws the neutral point moving contact and low pressure is drawn the dynamic/static contact that the neutral point fixed contact consists of neutral point.The 5th, high pressure transition resistance, the 8th, low pressure transition resistance.
The every phase coil of high voltage side of transformer has three taps, respectively these three taps and an end is connected to every four the high pressure fixed contacts mutually of the utility model; Low-pressure side in kind connects.Insulation rotating shaft rotation in the utility model, all high and low pressure moving contact synchronous rotaries switch on the corresponding high and low pressure fixed contact, change simultaneously the number of turn of transformer high and low pressure lateral coil, and then change transformer capacity.
Embodiment two: the connection group is D/yn0, and namely the high-pressure side is corner connection
Referring to Fig. 5, low pressure movable contact system in the present embodiment, low pressure static contact system and embodiment one are identical, difference is that high pressure movable contact system and high pressure static contact system design by corner connection, specifically, every by two-layer high pressure moving contact and corresponding two-layer high pressure static contact system, two-layer high pressure moving contact is connected by a high-voltage conductive rod 15, its at the middle and upper levels the high pressure moving contact be tap moving contact 16, lower floor's high pressure moving contact is termination moving contact 17; Two-layer high pressure static contact system lower floor is termination fixed contact 18, and is corresponding with the termination moving contact, consists of the dynamic/static contact of termination, and the upper strata is tap fixed contact 19, and is corresponding with the tap moving contact; Every phase tap static contact system forms (referring to Fig. 2) by four high pressure fixed contacts, the dynamic/static contact structure identical (referring to Fig. 3) of the neutral point among the structure of the dynamic/static contact of termination and the embodiment one.
Referring to Fig. 6, the every phase coil of high voltage side of transformer has three groups of taps, respectively these three groups of taps and an end are connected to every four the high pressure fixed contacts mutually of present embodiment, three ends of again three high pressure termination fixed contacts of utility model being received respectively high voltage side of transformer corner connection coil; The low-pressure side method of attachment is identical with embodiment one.Insulation rotating shaft rotation in the utility model, all high and low pressure moving contact synchronous rotaries switch on the corresponding high and low pressure fixed contact, change simultaneously the number of turn of transformer high and low pressure lateral coil, and then change transformer capacity.
Claims (3)
1. one kind has the multistage capacity transfer shunting switch of carrying, loaded switch comprises high pressure movable contact system and high pressure static contact system, low pressure movable contact system and low pressure static contact system, the high pressure movable contact system comprises the three-phase high-voltage moving contact, it is characterized in that: three groups of low pressure moving contacts in the low pressure movable contact system with is connected group low pressure and draws the neutral point moving contact and connected by a low voltage conductive bar, low pressure is drawn the neutral point moving contact and is installed in the insulation rotating shaft; Every phase low pressure static contact system is comprised of N low pressure fixed contact; Every phase high pressure static contact system is comprised of N high pressure fixed contact; Low pressure is drawn neutral point fixed contact and low pressure, and to draw the neutral point moving contact corresponding, low pressure is drawn the neutral point fixed contact and is comprised, metallic conductor is arranged in the insulation burrel, metallic conductor is fixed on low pressure and draws on the neutral point fixed contact, low pressure is drawn the neutral point moving contact and is done the contact slip at metallic conductor, and low pressure draws the neutral point moving contact and low pressure is drawn the dynamic/static contact that the neutral point fixed contact consists of neutral point; Said N is 2≤N≤10.
According to claimed in claim 1 have carry a multistage capacity transfer shunting switch, it is characterized in that: the three-phase high-voltage moving contact in the said high pressure movable contact system is connected by a high-voltage conductive rod.
According to claimed in claim 1 have carry a multistage capacity transfer shunting switch, it is characterized in that: said high pressure movable contact system and high pressure static contact system are by the corner connection design, specifically, every by two-layer high pressure moving contact and corresponding two-layer high pressure static contact system, two-layer high pressure moving contact is connected by a high-voltage conductive rod, its at the middle and upper levels the high pressure moving contact be the tap moving contact, lower floor's high pressure moving contact is the termination moving contact; Two-layer high pressure static contact system lower floor is the termination fixed contact, and is corresponding with the termination moving contact, consists of the dynamic/static contact of termination, and the upper strata is the tap fixed contact, and is corresponding with the tap moving contact; Every phase tap static contact system is comprised of four high pressure fixed contacts, and the structure of the dynamic/static contact of termination is identical with the dynamic/static contact structure that said low pressure is drawn neutral point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220151730 CN202887958U (en) | 2012-04-12 | 2012-04-12 | On-load multistage controllable-capacity tap switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220151730 CN202887958U (en) | 2012-04-12 | 2012-04-12 | On-load multistage controllable-capacity tap switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887958U true CN202887958U (en) | 2013-04-17 |
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ID=48079355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220151730 Withdrawn - After Issue CN202887958U (en) | 2012-04-12 | 2012-04-12 | On-load multistage controllable-capacity tap switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202887958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623156A (en) * | 2012-04-12 | 2012-08-01 | 辽宁金立电力电器有限公司 | On-load multistage adjustable-capacity tap switch |
| CN106876175A (en) * | 2017-04-13 | 2017-06-20 | 山东普益电气有限公司 | A kind of loaded tap-off mechanical switch |
-
2012
- 2012-04-12 CN CN 201220151730 patent/CN202887958U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623156A (en) * | 2012-04-12 | 2012-08-01 | 辽宁金立电力电器有限公司 | On-load multistage adjustable-capacity tap switch |
| CN102623156B (en) * | 2012-04-12 | 2015-06-03 | 辽宁金立电力电器有限公司 | On-load multistage adjustable-capacity tap switch |
| CN106876175A (en) * | 2017-04-13 | 2017-06-20 | 山东普益电气有限公司 | A kind of loaded tap-off mechanical switch |
| CN106876175B (en) * | 2017-04-13 | 2019-05-31 | 山东普益电气有限公司 | A kind of loaded tap-off mechanical switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130417 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |