CN201069857Y - Offline detection device for passive automatic compensation electric-controlled device - Google Patents
Offline detection device for passive automatic compensation electric-controlled device Download PDFInfo
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- CN201069857Y CN201069857Y CNU2007200953991U CN200720095399U CN201069857Y CN 201069857 Y CN201069857 Y CN 201069857Y CN U2007200953991 U CNU2007200953991 U CN U2007200953991U CN 200720095399 U CN200720095399 U CN 200720095399U CN 201069857 Y CN201069857 Y CN 201069857Y
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- automatic compensation
- selsyn
- power
- winding
- compensation electric
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- Expired - Fee Related
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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 offline detection device of a reactive automatic compensating electrical-controlled device, comprising an alternating current power supply, a small-volume alternating-current voltage regulator, a synchro and a current converter, wherein the input end of the small-volume voltage regulator is connected with the alternating current power supply, the output end is connected with the exciting winding in the synchro, the synchronizing winding embedded in the stator core groove of the synchro is a three-phase symmetric winding, any two phases thereof are connected with the input end of the current converter, and the output end of the current converter is connected with the automatic compensating input feedback end of a reactive automatic compensating cabinet. The utility model is convenient and reliable for detecting, simple for wiring, low in cost, convenient for carrying and capable of checking the action correctness, reliability, and reaction speed of the reactive automatic compensating electrical-controlled device offline and precisely in complex field circumstances; ,moreover, the device can be applied to other fields which need phase shift signal.
Description
Technical field
The utility model relates to the imaginary power automatic compensation electric control gear in the electrical network, especially a kind of off-line detection device of imaginary power automatic compensation electric control gear.
Background technology
At present, the imaginary power automatic compensation electric control gear can not carry out the test from the motion tracking switching after manufacturing finishes, have only to the scene and insert electrical network, connect and to carry out idle automatic switchover with power factor automatically according to actual signal, promptly according to imaginary power automatic compensation electric control gear principle, after the imaginary power automatic compensation electric control gear inserts electrical network, its electric current and voltage transformer are to the electric current in the power network line, voltage signal detects, and calculate required reactive power compensation amount, again by its relevant phase-sensitive circuit, the operation circuit, control circuit, the switched capacitor of directly controlling right quantity to power amplification until interface puts into operation, and the capacitive reactive power that produces delivered to electrical network, to reach the electric network reactive-load purpose of compensation automatically.Above-mentioned detection can only move on electrical network, has many inconveniences.In order to address this problem, the scientific research institution that has releases a kind of large-scale phase shift testing stand, and this testing stand uses the no function signal of simulation, realizes purposes such as whether reliable internal circuit, electric property and the connection of offline inspection imaginary power automatic compensation electric control gear.But this large-scale phase shift table apparatus cost is high, wiring is complicated, detection is loaded down with trivial details, move inconvenience, is difficult to realize especially site environment detection examination down under the complex environment.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of easy to detect reliable, wiring simple, low price, be easy to carry and the off-line detection device of the imaginary power automatic compensation electric control gear that can use under complicated site environment.
The technical scheme that the utility model is taked is:
A kind of off-line detection device of imaginary power automatic compensation electric control gear, join with the automatic compensation input feedback end of imaginary power automatic compensation cabinet, it is characterized in that: by AC power, the low capacity AC voltage regulator, selsyn, power pack constitutes, wherein low capacity voltage regulator input connects AC power, output is connected with excitation winding in the selsyn, the synchronizing winding that selsyn is embedded in the stator coring groove is a three-phase symmetric winding, and its any two-phase is connected with the input of power pack, and the automatic compensation input feedback end of the output of this power pack and imaginary power automatic compensation cabinet joins.
And described selsyn can be contact selsyn or contactless selsyn.
Advantage of the present utility model and good effect are:
1. this device uses simple circuit and less device can realize offline inspection, wiring is simple, low price, be easy to carry, test when in the time of can being advantageously used in the imaginary power automatic compensation electric control gear and dispatching from the factory or under complicated site environment the imaginary power automatic compensation electric control gear being installed, but correctness, reliability, the reaction speed of the action of Precision Test imaginary power automatic compensation electric control gear realize offline inspection truly.
2. this device also can be made into small test device and uses for the user under complicated site environment with supporting, has reduced the imaginary power automatic compensation electric control gear and has inserted the detection time before electrical network uses and the downtime of electrical network, and practical application effect is rather good.
3. the utility model is easy to detect reliable, and wiring is simple, and low price is easy to carry, correctness, reliability, reaction speed that can the action of off-line Precision Test imaginary power automatic compensation electric control gear under complicated site environment; In addition, this device also may be used on other fields that needs phase shift signal.
Description of drawings
Fig. 1 is the schematic diagram of imaginary power automatic compensation electric control gear and electrical network line under the presence in the prior art.
Fig. 2 is the circuit theory diagrams of offline inspection of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described:
In order more clearly to narrate technological innovation structure of the present utility model, we provide in the prior art imaginary power automatic compensation electric control gear under the presence to insert the schematic diagram (as Fig. 1) of electrical network.Principle according to the imaginary power automatic compensation electric control gear, after the imaginary power automatic compensation electric control gear inserts electrical network, electric current in 1 pair of power network line of electric current and voltage transformer, voltage signal detects, and calculate required reactive power compensation amount, by the relevant phase-sensitive circuit of imaginary power automatic compensation electric control gear, operation circuit, control circuit, directly control switching capacitance until interface to power amplification and compensate, the capacitive reactive power that produces when the capacitor group of right quantity puts into operation is delivered to electrical network, reaches the electric network reactive-load purpose of compensation automatically thus.The detection of imaginary power automatic compensation electric control gear is at present carried out after being generally and inserting electrical network.
Innovative point of the present utility model is: as Fig. 2, insert plug 2, low capacity voltage regulator 3, selsyn 4, power pack 7 by AC power and constitute, wherein selsyn by excitation winding 5, be embedded in synchronizing winding 6 in the stator coring groove and the armature spindle 8 of selsyn is formed.Concrete annexation is: the input of low capacity voltage regulator connects AC power, its output is connected with field winding in the selsyn, the synchronizing winding that selsyn is embedded in the stator coring groove is a three-phase symmetric winding, and any two-phase wherein is connected with the input of power pack.
Wherein the rotor winding of selsyn by slip ring and brush draw wiring for the contact selsyn, the rotor winding is drawn the contactless selsyn that is of wiring by the electromagnetic coupled method.Above-mentioned two kinds of selsyns all can use in the utility model.
Operation principle of the present utility model is:
By adjusting the low capacity voltage regulator, the size of field winding terminal voltage that can corresponding change selsyn; The voltage of field winding end produces impulsive magnetic field in the air gap of selsyn, this impulsive magnetic field makes each phase winding rise time of selsyn synchronizing winding go up synchronous induced electromotive force, the size of electromotive force depends on the axis of each phase winding in the synchronizing winding and the relative position between the field winding axis, and the utility model uses any two-phase in the three symmetrical synchronizing windings.When rotating the armature spindle of selsyn, the relative position of each phase winding changes in the axis of field winding and the synchronizing winding, and the phase place of the voltage of power pack input is also along with change at this moment.
During use, the power pack output is connected with the input feedback end of imaginary power automatic compensation electric control gear, connect the AC power of low capacity voltage regulator input side then, variable voltage is delivered to the field winding of selsyn by the small-power voltage regulator, along with the angle of rotor that changes selsyn obtains adjustable voltage and phase shifting angle, pass through power pack, but be transformed into the current signal of the phase shift that reactive power automatic compensation device needs etc., thereby reach the effect of simulation electric network reactive-load signal, the no function signal of this simulation is by the input feedback end input imaginary power automatic compensation electric control gear of imaginary power automatic compensation electric control gear.
The utility model also can be made into small test device, supportingly gives the user or uses under complicated site environment, also can be applied in other field that needs phase shift signal.
Claims (2)
1. the off-line detection device of an imaginary power automatic compensation electric control gear, join with the automatic compensation input feedback end of imaginary power automatic compensation cabinet, it is characterized in that: by AC power, the low capacity AC voltage regulator, selsyn, power pack constitutes, wherein low capacity voltage regulator input connects AC power, output is connected with excitation winding in the selsyn, the synchronizing winding that selsyn is embedded in the stator coring groove is a three-phase symmetric winding, and its any two-phase is connected with the input of power pack, and the automatic compensation input feedback end of the output of this power pack and imaginary power automatic compensation cabinet joins.
2. the off-line detection device of imaginary power automatic compensation electric control gear according to claim 1 is characterized in that: described selsyn can be contact selsyn or contactless selsyn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200953991U CN201069857Y (en) | 2007-03-06 | 2007-03-06 | Offline detection device for passive automatic compensation electric-controlled device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200953991U CN201069857Y (en) | 2007-03-06 | 2007-03-06 | Offline detection device for passive automatic compensation electric-controlled device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201069857Y true CN201069857Y (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200953991U Expired - Fee Related CN201069857Y (en) | 2007-03-06 | 2007-03-06 | Offline detection device for passive automatic compensation electric-controlled device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201069857Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482587B (en) * | 2008-11-28 | 2013-07-24 | 王万俊 | Switching detector of reactive compensator |
-
2007
- 2007-03-06 CN CNU2007200953991U patent/CN201069857Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482587B (en) * | 2008-11-28 | 2013-07-24 | 王万俊 | Switching detector of reactive compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Cui Xiaolin Document name: Notification to Pay the Fees |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20120306 |