CN203261306U - Contactless and stepless on-load capacity-adjusting switch - Google Patents
Contactless and stepless on-load capacity-adjusting switch Download PDFInfo
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- CN203261306U CN203261306U CN2013202871953U CN201320287195U CN203261306U CN 203261306 U CN203261306 U CN 203261306U CN 2013202871953 U CN2013202871953 U CN 2013202871953U CN 201320287195 U CN201320287195 U CN 201320287195U CN 203261306 U CN203261306 U CN 203261306U
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- thyristor
- coil
- transformer
- power supply
- capacity
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Abstract
The utility model relates to a contactless and stepless on-load capacity-adjusting switch, comprising a shell body and a switching circuit arranged in the shell body, wherein the switching circuit comprises a thyristor and a coil, the thyristor is composed of a first thyristor, a second thyristor and a three thyristor, the coil comprises a transformer coil and a third coil on the thyristor, the transformer coil comprises a first coil and a second coil, one end of the first coil is connected to an input end of the a power supply, the other end is connected with one ends of the first thyristor and the second coil, the other end of the first thyristor is parallelly connected with the third coil and the third thyristor and then connected with another input end of the power supply, the third coil is connected with the third thyristor and another end of the second coil through a second thyristor, the shell body is provided with a power supply input interface and a power supply output interface, the power supply input interface is connected with the input end of the power supply, and the power supply output interface is connected with an output end of the transformer. Under the loaded condition, the contactless and stepless on-load capacity-adjusting switch can automatically switch the capacity of the transformer according to the real-time condition of the load of the transformer, thereby effectively reducing the loss, and having good economic and social benefits.
Description
Technical field
The utility model relates to electrical equipment, and particularly the loaded capacity-regulated switch of a kind of Contactless stepless is mainly used in loaded capacity-regulated amorphous alloy transformer.
Background technology
Its energy-conservation and control mode of the transformer that uses at present mainly is to realize that by wiring and the control mode thereof of using the new material such as non-crystaline amorphous metal and changing coil because structural problem, no-load loss is larger, does not meet energy-conservation requirement.Therefore, its improvement and bring new ideas is imperative.
Summary of the invention
For above-mentioned situation, for overcoming the defective of prior art, the purpose of this utility model just provides the loaded capacity-regulated switch of a kind of Contactless stepless, can solve effectively that to reduce present transformer power consumption too high, does not satisfy the problem of energy-conservation requirement.
The technical scheme that the utility model solves is, comprise the switching circuit that housing and housing are in-built, switching circuit comprises thyristor, coil, thyristor is by the first thyristor, the second thyristor, the 3rd thyristor forms, said coil comprises the tertiary coil on transformer coil and the thyristor, transformer coil comprises the first coil and the second coil, the first coil one termination power one input, another termination first thyristor of the first coil and an end of the second coil, the the first thyristor other end and tertiary coil, another input of the 3rd thyristor and joining power, tertiary coil connects the other end of the 3rd thyristor and tertiary coil through the second thyristor, power input interface and power output interface are arranged on the housing, power input interface links to each other with power input, and power output interface connects the output of transformer.
This practicality newly is automatically to carry out the loaded capacity-regulated transformer capacity according to the size of power consumption by its switch to switch in the situation of not cutting off the power supply, and can effectively reduce transformer running wastage, energy-conserving and environment-protective.
Description of drawings
Fig. 1 is structure chart of the present utility model;
Fig. 2 is working timing figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is made a detailed description.
Provided by Fig. 1, the utility model comprises housing and the in-built switching circuit of housing, switching circuit comprises thyristor, coil, thyristor is by the first thyristor 1, the second thyristor 2, the 3rd thyristor 3 forms, said coil comprises the tertiary coil 4 on transformer coil 5 and the thyristor, transformer coil 5 comprises the first coil L1 and the second coil L2, the first coil L1 one termination power one input A, another termination first thyristor 1 of the first coil L1 and the end of the second coil L2, the first thyristor 1 other end and tertiary coil 4, the 3rd thyristor 3 and another input of joining power B, tertiary coil 4 connects the other end of the 3rd thyristor 3 and tertiary coil 4 through the second thyristor 2, power input interface and power output interface are arranged on the housing, power input interface and power input A, B links to each other, and power output interface connects the output (not providing shell structure among the figure) of transformer.
Described housing is square, and power input interface and power output interface are separately positioned on the left and right sides of housing.
The utility model can link to each other with singlechip controller when using, to the Transformer Operation Status Real Time Monitoring, gather transformer current, voltage, power, the relevant parameters data such as power factor, by single-chip microcomputer the data message that gathers is carried out analyzing and processing, and compare with set point, to determine whether to adjust transformer capacity, by the ruuning situation Real Time Monitoring of sample circuit to the main body transformer, gather transformer current, voltage, power, the relevant parameters data such as power factor, switch if need to carry out capacity, given an order by microprocessor, behind drive amplification, the control loaded capacity-regulated switch of Contactless stepless (Fig. 1) is carried out switch motion, realizes the moment switching.
The utility model is as loaded capacity-regulated switch, in load factor greater than 80% the time, microprocessor sends switching command, the loaded capacity-regulated switch of Contactless stepless realizes that low capacity is to jumbo switching, concrete condition is: when working before switching before switching, the first thyristor is in opening state, and the second thyristor and the 3rd thyristor are in off-state; Namely at t
0 ~t
1Period, thyristor 1 state is high level, and thyristor 2 and thyristor 3 states are low level.During switching, control system makes thyristor 2 at first open-minded, short circuit between this moment 1,2, and the effect of reactor 4 is limiting short-circuit currents; At t
1 ~t
2Period, thyristor 1 still remains high level, and thyristor 2 becomes high level by low level, and thyristor 3 still is low level.Then, control system control thyristor 1 disconnects; At t
2 ~t
3Period, thyristor 1 becomes low level by high level, and thyristor 2 and thyristor 3 states remain unchanged.Then, control system control thyristor 3 is open-minded, this moment thyristor 2 and thyristor 3 short circuits; At t
3 ~t
4Period, thyristor 1 and thyristor 2 states remain unchanged, and thyristor 3 becomes high level by low level.At last, control system disconnects thyristor 2, and the capacity of finishing switches; At t
4 ~t
5Period, thyristor 1 and thyristor 3 remain unchanged, and thyristor 2 becomes low level, finishing switching by high level.Less than 30% the time, microprocessor sends switching command in load factor, and the loaded capacity-regulated switch of Contactless stepless is finished large capacity to the switching of low capacity, before the steps include: to switch, the transformer normal operation, thyristor 3 is in opening state, and thyristor 1 and thyristor 2 are in off-state; During switching, control system makes thyristor 1 directly open-minded, and this moment, thyristor 3 was by short circuit; Then, control system control thyristor 3 disconnects, and the capacity of finishing switches.Realizing low capacity in jumbo process, should guarantee reliably to interlock between thyristor 1 and the thyristor 3 that when namely the control end of thyristor 1 was high level, thyristor 3 can not trigger; When the control end of thyristor 3 was high level, thyristor 1 can not trigger.
Can be clearly illustrated that by above-mentioned situation, the utility model connects respectively loaded capacity-regulated amorphous alloy transformer high and low pressure coil tap, in the situation of not cutting off load, adjust capacity with the connected mode of the loaded capacity-regulated switch change-over high-low pressure of Contactless stepless winding.If in real time load is greater than the preset value of transferring the files, then the loaded capacity-regulated switch of Contactless stepless shown in the capacity transfer control unit will have the capacity that carries transformer to switch to high tap position, otherwise, then control the loaded capacity-regulated switch of described Contactless stepless and the capacity of transformer can be switched to low-grade location.This control system can be implemented in the situation of carrying, and according to the transformer load real time status transformer capacity is automaticallyed switch.Automatically carrying out the loaded capacity-regulated transformer capacity according to the size of power consumption by its switch in the situation of not cutting off the power supply switches, can effectively reduce the transformer running wastage, being specially adapted to loaded capacity-regulated amorphous alloy transformer, is the innovation on the motor device, and good economic and social benefit is arranged.
Claims (2)
1. loaded capacity-regulated switch of Contactless stepless, comprise the switching circuit that housing and housing are in-built, switching circuit comprises thyristor, coil, it is characterized in that, thyristor is by the first thyristor (1), the second thyristor (2), the 3rd thyristor (3) forms, said coil comprises the tertiary coil (4) on transformer coil (5) and the thyristor, transformer coil (5) comprises the first coil (L1) and the second coil (L2), the first coil (L1) termination power one input (A), another termination first thyristor (1) of the first coil (L1) and an end of the second coil (L2), the first thyristor (1) other end and tertiary coil (4), the 3rd thyristor (3) and another input of joining power (B), tertiary coil (4) connects the other end of the 3rd thyristor (3) and tertiary coil (4) through the second thyristor (2), power input interface and power output interface are arranged on the housing, power input interface and power input (A), (B) link to each other, power output interface connects the output of transformer.
2. the loaded capacity-regulated switch of Contactless stepless according to claim 1 is characterized in that, housing is square, and power input interface and power output interface are separately positioned on the left and right sides of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202871953U CN203261306U (en) | 2013-05-24 | 2013-05-24 | Contactless and stepless on-load capacity-adjusting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202871953U CN203261306U (en) | 2013-05-24 | 2013-05-24 | Contactless and stepless on-load capacity-adjusting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261306U true CN203261306U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202871953U Expired - Fee Related CN203261306U (en) | 2013-05-24 | 2013-05-24 | Contactless and stepless on-load capacity-adjusting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827119A (en) * | 2016-06-15 | 2016-08-03 | 国网青海省电力公司 | Automatic voltage stabilizing transformer |
-
2013
- 2013-05-24 CN CN2013202871953U patent/CN203261306U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827119A (en) * | 2016-06-15 | 2016-08-03 | 国网青海省电力公司 | Automatic voltage stabilizing transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140524 |