CN2144322Y - Automatic ac loading voltage regulator - Google Patents
Automatic ac loading voltage regulator Download PDFInfo
- Publication number
- CN2144322Y CN2144322Y CN 92237574 CN92237574U CN2144322Y CN 2144322 Y CN2144322 Y CN 2144322Y CN 92237574 CN92237574 CN 92237574 CN 92237574 U CN92237574 U CN 92237574U CN 2144322 Y CN2144322 Y CN 2144322Y
- Authority
- CN
- China
- Prior art keywords
- contactor
- voltage
- contact
- sample circuit
- regulating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an automatic ac loading voltage regulator, which belongs to the field of electrical transform equipment and comprises a voltage-regulating transformer, a contactor and a sampling circuit as a control element. The utility model has the advantages of simple structure, reliability, stability, low price and low energy consumption, which is especially suitable for the electricity utilization of the remote factories, mines, villages, and power supply for inhabitant districts, street lamps, etc.
Description
The utility model belongs to the transformation device of electric power, particularly relates to a kind of potential device.
Voltage is one of important indicator of the quality of power supply, and the safety and economic operation of electric system is had material impact, and overtension or spend the low life-span that will shorten consumer reduces the on-road efficiency of equipment.At present, because electric power supply is relatively more nervous, quality of voltage is difficult to generally be guaranteed, especially to some low capacity users, outlying factories and miness, road lamp power supply, residential quarter, because of the supply voltage peak-to-valley value changes greatly, easily causes the damage of equipment and household electrical appliance.For addressing the above problem, supply voltage control in allowed limits, have and adopt silicon-controlled voltage regulation, also have and adopt the capacitor switching pressure regulation, this dual mode all can not fine adjustment voltage.The nearest compensator transformer regulator that occurs, as the patent " automatic AC pressure regulator " of Xinran Foundry, Dalian City in application on Dec 20 nineteen ninety, application number is 90226589.X, though this patented claim has solved two-way automatic Regulation problem, but this patented technology complex structure, higher, many, the poor reliability of logical action contact of cost, and compensator transformer raises or descends when carrying out pressure regulation at supply voltage, and its winding ampere turns changes greatly, makes the loss increase.
The purpose of this utility model is to provide a kind of simple in structure, reliable operation, low, the cheap interchange loaded automatic voltage-regulating device of energy consumption.
Exchange loaded automatic voltage-regulating device employing autotransformer lifting voltage principle, raise automatically or the reduction output voltage by of the height variation of supply voltage sampling control element according to supply voltage.The concrete solution of the utility model comprises adjustable transformer T, sample circuit V
G, contactor KM
1And KM
2, sample circuit V
GFrom power input A, B sampling and control contactor KM
1, KM
2Action, the primary coil L of adjustable transformer T
1Two ends are respectively by contactor KM
1Contact KM
1-1, contactor KM
2Contact KM
2-1With secondary coil L
2Two ends are connected, primary coil L
1Centre tap connect zero-power line.
Between output terminal C, the D of this regulator, be connected with and be subjected to contactor KM
1, KM
2The contactor KM of control
3, its contact KM
3-1Be connected secondary coil L
2Two ends.
Sample circuit V
GBeing three-position type electrode points voltage table, can also be that three-position type is regulated, bound control figure display voltage table.
Contactor KM
1, KM
2By sample circuit V
GBe connected between output terminal C, the D.
The secondary coil L of adjustable transformer T
2Be serially connected in the current supply circuit.
Exchange loaded automatic voltage-regulating device when in running order, supply voltage is in the situation of rated range, sample circuit V
GDisconnect contactor KM
1And KM
2Coil, the primary coil L of adjustable transformer T
1Because of contact KM
1-1, KM
2-1Disconnect and open a way.Simultaneously, contactor KM
3Also because of contact KM
1-2, KM
2-2Disconnect and dead electricity its contact KM
3-1Closed and make secondary coil L
2By short circuit, the no pressure regulation effect of this device, adjustable transformer T is consumed energy not.Supply voltage is higher than the situation of ratings, sample circuit V
GMake contactor KM
2Coil electricity, its contact KM
2-1Closed, contact KM
2-2Disconnect contact KM
3-1Because of contactor KM
3Dead electricity and disconnecting, output voltage equaled input voltage and deducted secondary coil L this moment
2On induced voltage, output voltage is descended, reach the purpose of pressure regulation; Supply voltage is lower than the situation of ratings, sample circuit V
GMake contactor KM
1Coil electricity, contactor KM simultaneously
2Because of dead electricity is not worked, contact KM
1-1Closed, contact KM
2-1Disconnect contact KM
1-2, KM
3-1All disconnect, output voltage equaled input voltage and added secondary coil L this moment
2On induced voltage, output voltage is raise, reach the purpose of pressure regulation.
The utility model structure is very simple, except that adjustable transformer, has only sample circuit and contactor, and in the time of in input voltage is in normal range, this installs not consumed energy.The utility model working stability is reliable, cheap, the output voltage wave mode does not distort and continuous working for a long time.
Fig. 1 exchanges the loaded automatic voltage-regulating device circuit diagram.
Embodiment:
Sample circuit V
GWith the moving-coil type voltage table that the wide middle band of XCT three-position type is regulated, to being lower than 200 volts, being higher than 235 volts input voltage, the XCT voltage table just can be distinguished the corresponding spacing limit of adhesive, thereby makes corresponding contactor action.The primary coil L of adjustable transformer T
1The tap position ampere turns that is chosen in lower limit control voltage and upper limit control voltage equate the place.Secondary coil L
2The number of turn generally get primary coil L
15% of total number of turns, output voltage raises 20 volts when making supply voltage be lower than 200 volts, reduces by 20 volts when being higher than 235 volts.
Contactor KM
1, KM
2, KM
3Be respectively the auxiliary reclay or the A.C. contactor that adapt with Control current.
This device can be designed to single phase alternating current power supply is carried out loaded automatic voltage-regulating as required, also can be designed to three-phase alternating-current supply is carried out loaded automatic voltage-regulating.
Claims (4)
1, exchanges loaded automatic voltage-regulating device, comprise adjustable transformer T, it is characterized in that having sample circuit V
G, contactor KM
1And KM
2, sample circuit V
GFrom power input A, B sampling and control contactor KM
1And KM
2Action, the primary coil L of adjustable transformer T
1Two ends are respectively by contactor KM
1Contact KM
1-1, contactor KM
2Contact KM
2-1With secondary coil L
2Two ends are connected, primary coil L
1Centre tap connect zero-power line.
2, interchange loaded automatic voltage-regulating device according to claim 1 is characterized in that being connected with between output terminal C, D and is subjected to contactor KM
1, KM
2The contactor KM of control
3, its contact KM
3-1 is connected secondary coil L
2Two ends.
3, interchange loaded automatic voltage-regulating device according to claim 1 is characterized in that sample circuit V
GBeing three-position type electrode points voltage table, can also be that three-position type is regulated, bound control figure display voltage table.
4, interchange loaded automatic voltage-regulating device according to claim 1 is characterized in that contactor KM
1, KM
2By sample circuit V
GBe connected between output terminal C, the D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92237574 CN2144322Y (en) | 1992-10-24 | 1992-10-24 | Automatic ac loading voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92237574 CN2144322Y (en) | 1992-10-24 | 1992-10-24 | Automatic ac loading voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2144322Y true CN2144322Y (en) | 1993-10-20 |
Family
ID=33778820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92237574 Expired - Fee Related CN2144322Y (en) | 1992-10-24 | 1992-10-24 | Automatic ac loading voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2144322Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576823A (en) * | 2014-10-17 | 2016-05-11 | 本溪泰丰电力设备有限公司 | Outdoor pole-mounted type low-voltage remote monitoring boosting cabinet |
-
1992
- 1992-10-24 CN CN 92237574 patent/CN2144322Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576823A (en) * | 2014-10-17 | 2016-05-11 | 本溪泰丰电力设备有限公司 | Outdoor pole-mounted type low-voltage remote monitoring boosting cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |