CN201928033U - Automatic compensating device for step-up transformer low voltage side - Google Patents
Automatic compensating device for step-up transformer low voltage side Download PDFInfo
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- CN201928033U CN201928033U CN2010206852619U CN201020685261U CN201928033U CN 201928033 U CN201928033 U CN 201928033U CN 2010206852619 U CN2010206852619 U CN 2010206852619U CN 201020685261 U CN201020685261 U CN 201020685261U CN 201928033 U CN201928033 U CN 201928033U
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- reactive power
- compensating controller
- current
- inductance
- contactor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model relates to an automatic compensating device for a step-up transformer low voltage side, which comprises an alternating current contactor, an inductance, a current sampling module and a reactive power compensating controller, wherein the alternating current contactor is connected with the inductance in parallel at an output port of a power supply control box; the alternating current contactor is connected with the reactive power compensating controller; the current sampling module samples the current of an output end of the power supply control box and is connected with the reactive power compensating controller; the reactive power compensating controller measures the voltage of the output end of the power supply control box, the voltage and the output current of the power supply control box, which is obtained by the current module are compared to obtain phase relation; according to the phase relation, the reactive power compensating controller automatically decides the switching-on and cutting-off of the alternating current contactor, consequently the inductance is increased, reduced and compensated; and the inductance compensation of the scheme realizes automatic reactive compensation through the reactive power compensating controller, and consequently the reliable and simple working model of the automatic compensating device for the step-up transformer low voltage side is greatly improved.
Description
Technical field
The utility model relates to a kind of step-up transformer low-pressure side autocompensation installation of step-up transformer low-pressure side compensation arrangement, particularly a kind of reactive power compensation, belongs to technical field of electricity.
Background technology
Step-up transformer low-pressure side autocompensation installation, inductance compensation mainly is fixed against the phase relation that reactive power compensating controller detects voltage and current automatically, usually inductance compensation will calculate electric power output voltage current phase relation by measuring, and manually adds and subtracts the inductance value complex operation.
The utility model content
The utility model purpose is the step-up transformer low-pressure side autocompensation installation that has proposed a kind of reactive power compensation in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of step-up transformer low-pressure side autocompensation installation comprises A.C. contactor, inductance, current sampling module, reactive power compensating controller; Described A.C. contactor is connected with described inductance, is parallel to the power controling box delivery outlet; Described A.C. contactor is connected with reactive power compensating controller; Described current sampling module sampling power controling box output end current, be connected with described reactive power compensating controller, described reactive power compensating controller is measured the power controling box output end voltage, and the power controling box output current of obtaining with current module compares phase relation; Thereby determine A.C. contactor to connect automatically according to the phase relation reactive power compensating controller and cut off plus-minus compensating inductance amount.
Preferably, also be provided with the undercurrent lockout circuit, when the power-charged current hour, the inductor that can will drop into automatically withdraws from power supply, the switching phenomenon of avoiding vibrating.
Preferably, described reactive power compensating controller is provided with test self-test switch and manual mode, can check whether controller work is normal.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage:
Step-up transformer low-pressure side autocompensation installation of the present utility model, thus inductance compensation is realized auto-reactive compensation by the phase relation control inductance Parallel Control circuit plus-minus inductance value that reactive power compensating controller detects electric power output voltage and electric current automatically; By reactive power compensating controller, thereby make inductance value to add and subtract according to the electric current and voltage phase relation automatically, thereby improved reliable, the succinct working method of step-up transformer low-pressure side autocompensation installation greatly.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1 is the fundamental diagram of step-up transformer low-pressure side autocompensation installation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described.
Be a kind of step-up transformer low-pressure side autocompensation installation described in the utility model as shown in Figure 1, comprise A.C. contactor, inductance, current sampling module, reactive power compensating controller; Described A.C. contactor is connected with described inductance, is parallel to the power controling box delivery outlet; Described A.C. contactor is connected with reactive power compensating controller; Described current sampling module sampling power controling box output end current, be connected with described reactive power compensating controller, described reactive power compensating controller is measured the power controling box output end voltage, and the power controling box output current of obtaining with current module compares phase relation; Thereby determine A.C. contactor to connect automatically according to the phase relation reactive power compensating controller and cut off plus-minus compensating inductance amount; This programme also is provided with the undercurrent lockout circuit, when the power-charged current hour, the inductor that can will drop into automatically withdraws from power supply, the switching phenomenon of avoiding vibrating; Described reactive power compensating controller is provided with test self-test switch and manual mode, can check whether controller work is normal.
The sampling physical quantity of reactive power compensating controller is a power factor, it according to the throwing of the big or small control compensation inductor of electrical source power factor, cut, thereby be applicable to the power supply of all size sensibility reciprocal, be not subjected to switching inductor size and sample rate current instrument transformer change limit.In the use, generally needn't adjust, just can steady operation.Using simply is the basic characteristics of these series of products.Adopt the special-purpose current-voltage transformer precision of measuring instrument height, switching is accurate.
Output loop adopts the periodic duty mode of " the first disjunction of connecting earlier ", and is identical with the inductor number of operations to guarantee each road contactor, prolonged time between failures.
Be provided with voltage inlet wire phase-change switch, install, debug very convenient.Reactive power compensating controller is the key component that realizes auto-reactive compensation in the utility model, therefore is provided with voltage inlet wire phase-change switch, installs, debugs very convenient.Strong anti-interference performance can hang down and drive the 2000V disturbing pulse that directly enters from pressure-wire and unlikelyly cause that work is undesired.The hysteresis that reactive power compensating controller 2 has, leading, undercurrent, over-voltage protecting function have improved the autocompensation installation operating efficiency reliably.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage:
Step-up transformer low-pressure side autocompensation installation of the present utility model, thus inductance compensation is realized auto-reactive compensation by the phase relation control inductance Parallel Control circuit plus-minus inductance value that reactive power compensating controller detects electric power output voltage and electric current automatically; By reactive power compensating controller, thereby make inductance value to add and subtract according to the electric current and voltage phase relation automatically, thereby improved reliable, the succinct working method of step-up transformer low-pressure side autocompensation installation greatly.
Below only be concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, or any to move mode dull and stereotyped described in the utility model, all drop within the utility model rights protection scope.
Claims (3)
1. a step-up transformer low-pressure side autocompensation installation is characterized in that: comprise A.C. contactor, inductance, current sampling module, reactive power compensating controller; Described A.C. contactor is connected with described inductance, is parallel to the power controling box delivery outlet; Described A.C. contactor is connected with reactive power compensating controller; Described current sampling module sampling power controling box output end current, be connected with described reactive power compensating controller, described reactive power compensating controller is measured the power controling box output end voltage, and the power controling box output current of obtaining with current module compares phase relation; Thereby determine A.C. contactor to connect automatically according to the phase relation reactive power compensating controller and cut off plus-minus compensating inductance amount.
2. step-up transformer low-pressure side autocompensation installation according to claim 1 is characterized in that: also be provided with the undercurrent lockout circuit, when the power-charged current hour, the inductor that can will drop into automatically withdraws from power supply, the switching phenomenon of avoiding vibrating.
3. step-up transformer low-pressure side autocompensation installation according to claim 1 is characterized in that: described reactive power compensating controller is provided with test self-test switch and manual mode, can check whether controller work is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206852619U CN201928033U (en) | 2010-12-28 | 2010-12-28 | Automatic compensating device for step-up transformer low voltage side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206852619U CN201928033U (en) | 2010-12-28 | 2010-12-28 | Automatic compensating device for step-up transformer low voltage side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928033U true CN201928033U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206852619U Expired - Fee Related CN201928033U (en) | 2010-12-28 | 2010-12-28 | Automatic compensating device for step-up transformer low voltage side |
Country Status (1)
| Country | Link |
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| CN (1) | CN201928033U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161236A (en) * | 2015-09-22 | 2015-12-16 | 刘伟 | Linear controllable resistor with gradually-increased resistance values, high-power weak-current equipment power source and electric system |
| CN105185549A (en) * | 2015-09-22 | 2015-12-23 | 刘伟 | Gradient-type controllable inductor with retreat switch, electronic circuit and electric power system |
| CN105244128A (en) * | 2015-09-22 | 2016-01-13 | 刘伟 | Wound tap-type dynamic resistor with carry switch, electronic circuit and manipulator equipment for nuclear energy power generation |
| CN105280381A (en) * | 2015-09-22 | 2016-01-27 | 刘伟 | Tandem gradient dynamic capacitor with back space switch, motor starting drive, and mine equipment |
| CN109541339A (en) * | 2018-10-26 | 2019-03-29 | 苏州华电电气股份有限公司 | Power transformer bears short-circuit capacity pilot system |
-
2010
- 2010-12-28 CN CN2010206852619U patent/CN201928033U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161236A (en) * | 2015-09-22 | 2015-12-16 | 刘伟 | Linear controllable resistor with gradually-increased resistance values, high-power weak-current equipment power source and electric system |
| CN105185549A (en) * | 2015-09-22 | 2015-12-23 | 刘伟 | Gradient-type controllable inductor with retreat switch, electronic circuit and electric power system |
| CN105244128A (en) * | 2015-09-22 | 2016-01-13 | 刘伟 | Wound tap-type dynamic resistor with carry switch, electronic circuit and manipulator equipment for nuclear energy power generation |
| CN105280381A (en) * | 2015-09-22 | 2016-01-27 | 刘伟 | Tandem gradient dynamic capacitor with back space switch, motor starting drive, and mine equipment |
| CN109541339A (en) * | 2018-10-26 | 2019-03-29 | 苏州华电电气股份有限公司 | Power transformer bears short-circuit capacity pilot system |
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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 |
Granted publication date: 20110810 Termination date: 20191228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |