CN202495765U - High-voltage reactive-power automatic compensation device of power supply system - Google Patents
High-voltage reactive-power automatic compensation device of power supply system Download PDFInfo
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- CN202495765U CN202495765U CN 201120501789 CN201120501789U CN202495765U CN 202495765 U CN202495765 U CN 202495765U CN 201120501789 CN201120501789 CN 201120501789 CN 201120501789 U CN201120501789 U CN 201120501789U CN 202495765 U CN202495765 U CN 202495765U
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- flameproof
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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 provides a high-voltage reactive-power automatic compensation device of a power supply system. The high-voltage reactive-power automatic compensation device is suitable for coal mine and used for automatically compensating reactive power on a high-voltage side. The device comprises a flameproof high voltage current detection device, a flameproof movable transformer and a flameproof automatic reactive power compensation device; wherein a system bus on the back end of the flameproof high voltage current detection device is connected with a high voltage side of the flameproof movable transformer, low voltage sides of the flameproof high voltage current detection device and the flameproof movable transformer are respectively connected with two ends of the flameproof automatic reactive power compensation device. The flameproof high voltage current detection device TA detects the system high-voltage side current and the system high-voltage side current is sent to the flameproof automatic reactive power compensation device connected with the low-voltage side of the flameproof movable transformer and the reactive power of the system is automatically compensated by the flameproof automatic reactive power compensation device according to the change in the reactive power of the high voltage system.
Description
Technical field
The utility model relates to a kind of electric power system compensation equipment, especially a kind of electric power system high pressure imaginary power automatic compensation equipment.
Background technology
Because perceptual equipment such as a large amount of use motors need on the spot or disperse the balance reactive power, few the flowing on the line so that reactive current is tried one's best is to reduce reactive loss and to improve the system voltage quality in power supply-distribution system.The colliery electric power system is only concentrated reactive power compensation in well head electric substation, for a long time to satisfy the power factor requirement of power supply department.Along with the colliery scale is increasing; Supply line is also more and more longer under the coal mine; And the down-hole is not installed reactive-load compensation equipment basically, downhole electrical motor equipment ubiquity low load with strong power phenomenon in addition, and power factor is generally lower; Thereby the reactive power consumption on the circuit of down-hole is very big, under coal mine, carries out very necessity of reactive power compensation on the spot.
The reactive-load compensation equipment that is fit at present to use under the coal mine still seldom and mainly carries out reactive power compensation in low-pressure side, and equipment volume is big; Requirement is many; And the space is limited under the coal mine, can't large tracts of land install and use, and has limited its scope of application and total compensation effect.Under the coal mine 6, the 10kv high-tension line is very long, down-hole central substation and each working section sub station are necessary to install reactive-load compensation equipment very much, with the reactive power on the compensated line.Yet, be fit to the high-pressure reactive compensation equipment that use on ground at present, bulky, can't be installed in the flameproof enclosure, can not under coal mine, use.Though the high pressure compensation equipment that can use in the down-hole is arranged at present, all belong to fixed, can't be according to the variation automatic switching of load.
The utility model content
The utility model provides the electric power system high pressure imaginary power automatic compensation that uses under a kind of suitable coal mine, can compensate on high-tension side reactive power automatically equipment.
Realize the electric power system high pressure imaginary power automatic compensation equipment of the utility model purpose, comprise flameproof high-voltage current sensing means, flame-proof type phase shifting transformer and flame-proof type auto-reactive compensation device; The system busbar of said flameproof high-voltage current sensing means rear end and the high-pressure side of flame-proof type phase shifting transformer link to each other, and the low-pressure side of said flameproof high-voltage current sensing means and flame-proof type phase shifting transformer is connected to the two ends of said flame-proof type auto-reactive compensation device.By flameproof high-voltage current sensing means TA detection system high voltage side current; Send into the flame-proof type auto-reactive compensation device that flame-proof type phase shifting transformer low-pressure side connects, by the reactive power of flame-proof type auto-reactive compensation device according to the variation self compensating system of high-pressure system reactive power.
Said flame-proof type phase shifting transformer and flame-proof type auto-reactive compensation device are a plurality of, are connected in parallel on the two ends of said flame-proof type current sensing means.
Said flameproof high-voltage current sensing means is the idle measure and control device of flameproof high-voltage, and the idle measure and control device of this flameproof high-voltage links to each other with the flame-proof type auto-reactive compensation device of said flame-proof type phase shifting transformer low-pressure side through communication interface.By the idle measure and control device measuring system of flameproof high-voltage reactive power, by the reactive power of the idle measure and control device of flameproof high-voltage according to the variation control flame-proof type auto-reactive compensation device self compensating system of high-pressure system reactive power.
The beneficial effect of the electric power system high pressure imaginary power automatic compensation equipment of the utility model is following:
Thereby 1, through realize the reactive power automatic compensation of system high pressure side in step down side automatic switching capacitor group; Avoid the use of high-voltage capacitor, element that the high-pressure vacuum contactor equal-volume is huge; Make colliery down-hole high pressure auto-reactive compensation be easy to realize that volume is little.
2, package is made up of several parts independently, and scheme makes up easily, the convenient expansion.
3, this patent scheme is applicable to and concentrates compensation under the coal mine, effectively improves the power factor of whole mine.
Description of drawings
Fig. 1 is the structural representation of the utility model electric power system high pressure imaginary power automatic compensation equipment.
Fig. 2 is the structural representation of another embodiment of the utility model electric power system high pressure imaginary power automatic compensation equipment.
Embodiment
Embodiment 1
As shown in Figure 1, the electric power system high pressure imaginary power automatic compensation equipment of the utility model comprises flameproof high-voltage current sensing means 1, flame-proof type phase shifting transformer 2 and flame-proof type auto-reactive compensation device 3; The system busbar of said flameproof high-voltage current sensing means 1 rear end and the high-pressure side of flame-proof type phase shifting transformer 2 link to each other, and the low-pressure side of said flameproof high-voltage current sensing means 1 and flame-proof type phase shifting transformer 2 is connected to the two ends of said flame-proof type auto-reactive compensation device 3.By flameproof high-voltage current sensing means 1 detection system high voltage side current; Send into the flame-proof type auto-reactive compensation device 3 that flame-proof type phase shifting transformer 2 low-pressure sides connect, by the reactive power of flame-proof type auto-reactive compensation device 3 according to the variation self compensating system of high-pressure system reactive power.
Flameproof high-voltage current sensing means 1 detection system bus current; Flame-proof type auto-reactive compensation device 3 is through flame-proof type phase shifting transformer 2 detection system voltages; Reactive controller computing system reactive power through flame-proof type auto-reactive compensation device 3 inside; And opening-closing capacitor bank, through the on high-tension side reactive power of impedance conversion effect bucking-out system of flame-proof type phase shifting transformer 2.
As shown in Figure 2, said flame-proof type phase shifting transformer 2 is a plurality of with flame-proof type auto-reactive compensation device 3, is connected in parallel on the two ends of said flame-proof type current sensing means.Said flameproof high-voltage current sensing means is the idle measure and control device 4 of flameproof high-voltage, and this flameproof high-voltage is idle, and measure and control device 4 links to each other with the flame-proof type auto-reactive compensation device 3 of said flame-proof type phase shifting transformer 2 low-pressure sides through communication interface.By the idle measure and control device 4 measuring system reactive powers of flameproof high-voltage, by the reactive power of the idle measure and control device 3 of flameproof high-voltage according to the variation control flame-proof type auto-reactive compensation device self compensating system of high-pressure system reactive power.
Embodiment recited above describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Design under the spiritual prerequisite not breaking away from the utility model; Various distortion and improvement that the common engineers and technicians in this area make the utility model technical scheme all should fall in the protection range that claims of the utility model confirm.
Claims (3)
1. an electric power system high pressure imaginary power automatic compensation equipment is characterized in that: comprise flameproof high-voltage current sensing means, flame-proof type phase shifting transformer and flame-proof type auto-reactive compensation device; The system busbar of said flameproof high-voltage current sensing means rear end and the high-pressure side of flame-proof type phase shifting transformer link to each other, and the low-pressure side of said flameproof high-voltage current sensing means and flame-proof type phase shifting transformer is connected to the two ends of said flame-proof type auto-reactive compensation device.
2. electric power system high pressure imaginary power automatic compensation equipment according to claim 1 is characterized in that: said flame-proof type phase shifting transformer and flame-proof type auto-reactive compensation device are a plurality of, are connected in parallel on the two ends of said flameproof high-voltage current sensing means.
3. electric power system high pressure imaginary power automatic compensation equipment according to claim 1 and 2; It is characterized in that: said flameproof high-voltage current sensing means is the idle measure and control device of flameproof high-voltage, and the idle measure and control device of this flameproof high-voltage links to each other with the flame-proof type auto-reactive compensation device of said flame-proof type phase shifting transformer low-pressure side through communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120501789 CN202495765U (en) | 2011-12-06 | 2011-12-06 | High-voltage reactive-power automatic compensation device of power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120501789 CN202495765U (en) | 2011-12-06 | 2011-12-06 | High-voltage reactive-power automatic compensation device of power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495765U true CN202495765U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120501789 Expired - Fee Related CN202495765U (en) | 2011-12-06 | 2011-12-06 | High-voltage reactive-power automatic compensation device of power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495765U (en) |
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2011
- 2011-12-06 CN CN 201120501789 patent/CN202495765U/en not_active Expired - Fee Related
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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: 20121017 Termination date: 20151206 |
|
| EXPY | Termination of patent right or utility model |