CN2471005Y - High-voltage prize-type power-free compensation device - Google Patents
High-voltage prize-type power-free compensation device Download PDFInfo
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- CN2471005Y CN2471005Y CN 01211746 CN01211746U CN2471005Y CN 2471005 Y CN2471005 Y CN 2471005Y CN 01211746 CN01211746 CN 01211746 CN 01211746 U CN01211746 U CN 01211746U CN 2471005 Y CN2471005 Y CN 2471005Y
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- fuse
- voltage transformer
- voltage
- power
- reactor
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Abstract
The utility model discloses a high voltage sled-type reactive power compensation device for meeting the users need of an optimal compensation capacity, a best equipping position and a best loss-reducing effect comprising a lightning arrester, a fuse, a reactor, a voltage transformer and a capacitor bank which is characterized in that a metal armouring closed structure is adopted with an operating room and a high voltage room in the closed structure. The operating room is equipped with a display instrument panel (34), a disconnector operating mechanism (33) and circuit breaker operating mechanisms (31, 32). In the high voltage room, a power input wire passes through a disconnector (21), a lightning arrester (22), a fuse (23) then arrives circuit breakers (24, 25) and connects a voltage transformer (27). Capacitors (28, 29), a reactor (30) and a fuse (26) are connected in series with a contact between the circuit breakers (24, 25) and the voltage transformer (27).
Description
The utility model is a kind of compensation arrangement that reduces the power distribution network reactive power consumption, belongs to the forceful electric power technical field.
For transmission line or local power system, when carry equating the active power of number, also with the suitable reactive power of number.If supply power voltage is certain, when the power factor step-down, then electric current increases, and line loss is increased, and reduces the power supply capacity of electric power system, and the quality of supply power voltage, will produce adverse influence to system.Networks at different levels and controller switching equipment all will consume the reactive power of some, wherein the reactive power proportion maximum of power distribution network consumption.The centralized compensation of transformer station mainly is the reactive loss of compensator transformer itself, and the reactive power that reduces the above transmission line transmission of transformer station, thereby reduce the reactive loss of supply network, but it does not reduce the reactive loss of distribution network, and idle still needs that the user needs carries to load by the distribution line below the transformer station.In order to reduce the loss of reactive power to greatest extent, improve the efficient of controller switching equipment, effectively reduce line loss, according to the principle of idle " grading compensation, in-situ balancing ", must carry out dispersion compensation.
The utility model purpose is to disclose a kind of high pressure sled formula reactive power compensator, realizes optimal compensation capacity, best position and the best needs that decrease effect that fall to satisfy the user.
Its composition of the utility model comprises lightning arrester BL, fuse RD, reactor DK, voltage transformer pt, capacitor group C, it is characterized in that: adopt the metal armouring closed structure, inside is divided into operating room and hyperbaric chamber two parts, operating room: display instrument dash board 34, isolator operating mechanism 33 and circuit breaker operation mechanism 31,32 are installed; Electric power incoming line is through isolating switch 21 in the hyperbaric chamber, and lightning arrester 22, fuse 23 connect voltage transformer 27 again to circuit breaker 24,25, and capacitor 28,29 reactors 30 and fuse 26 are connected in series between circuit breaker 24,25 and voltage transformer 27 contacts,
The utility model is a kind of most important forms of power system reactive power dispersion compensation, it to the power factor, the ability of giving full play to electricity supply and use equipment that improve network, adjust voltage, reduce network loss, and improve power supply quality and all will have great importance.Its advantage is:
1, is convenient to the control of load or burden without work subregion, significantly reduces the distribution line line loss.
2, be convenient to realize the var management.
3, the adjustable range of compensating power is bigger.
4, this device has rain and snow, anti-theft feature for armouring sled formula outdoor type.
Fig. 1 is the utility model embodiment main wiring diagram;
Fig. 2 is the utility model embodiment cut-away view;
Main technical characteristics and scheme
The utility model is an armouring sled formula outdoor type, can carry out the substep switching by the idle requirement of system.Be applicable to power frequency 10 (6) kV electric power systems, as reactive power source equipment, to improve the power supply quality of power distribution network.Shunt capacitor adopts the star-star connection mode of isolated neutral in circuit, and electric discharge device adopts voltage transformer, and the capacitor internal protection adopts special-purpose fuse, for preventing overvoltage, lightning arrester has been installed.The switching control appliance of capacitor adopts isolating switch and circuit breaker.Single group capacitor is equipped with series reactor by its capacity.This equipment is directly parallel in the user side of 10KV or 6KV electrical network, and according to the input or the excision of the size fractionation control capacitor group of required idle amount, the reactive power consumption that makes electrical network is for minimum.The compensation Shunt Capacitor Unit is two groups, and capacity is determined by the size of the idle amount in scene, and second group capacity is 2 times of first group.Wherein lightning arrester is in order to prevent the damage of thundery sky thunderbolt to equipment.The effect of fuse is to prevent that capacitor from damaging the influence of electrical network or answer the too high damage to capacitor of line voltage.The reactor effect is the impulse current when being limited in capacitor input and excision and is come high order harmonic component is suppressed by it when having high order harmonic component in the electrical network.The effect of voltage transformer is to provide voltage and discharge when excising for capacitor for indicating instrument, signal circuit.
Operation principle
Power consumption equipment is mainly inductive load in electric power network, especially the power factor of asynchronous motor is lower, the power factor of power network is reduced, system voltage is descended, electric equipment is not fully utilized, impel network capacity to descend, loss increases, therefore, resolve the network building out problem, the network wastage reducing and energy saving is had very important meaning.If the burden with power of power network is constant, owing to installed reactive power compensation additional, reactive power consumption is reduced, power factor improves, and the electric current of electrical network is reduced.The course of work is: to circuit breaker, circuit breaker is controlled the switching of first group capacitor and the switching of system second group capacitor respectively according to the size of power factor to power supply by isolating switch, current transformer
The benefit that the electric power system power factor has after improving mainly contains following several respects
(1) can reduce line loss;
(2) can reduce the capacity of system element, improve the power supply capacity of electrical network;
(3) generator is exported by rated capacity;
(4) can improve user's quality of voltage;
(5) save electricity charge expenditure;
Claims (1)
1. a high pressure is prized the formula reactive power compensator, its composition comprises lightning arrester BL, fuse RD, reactor DK, voltage transformer pt, capacitor group C, it is characterized in that: adopt the metal armouring closed structure, inside is divided into operating room and hyperbaric chamber two parts, operating room: display instrument dash board (34), isolator operating mechanism (33) and circuit breaker operation mechanism (31,32) are installed; Electric power incoming line is through isolating switch (21) in the hyperbaric chamber, lightning arrester (22), fuse (23) connect voltage transformer (27), capacitor (28 again to circuit breaker (24,25), 29) reactor (30) and fuse (26) are connected in series between circuit breaker (24,25) and voltage transformer (27) contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211746 CN2471005Y (en) | 2001-02-26 | 2001-02-26 | High-voltage prize-type power-free compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211746 CN2471005Y (en) | 2001-02-26 | 2001-02-26 | High-voltage prize-type power-free compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471005Y true CN2471005Y (en) | 2002-01-09 |
Family
ID=33631077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211746 Expired - Fee Related CN2471005Y (en) | 2001-02-26 | 2001-02-26 | High-voltage prize-type power-free compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471005Y (en) |
-
2001
- 2001-02-26 CN CN 01211746 patent/CN2471005Y/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 | ||
| 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 |