CN206673595U

CN206673595U - Reactive power compensator

Info

Publication number: CN206673595U
Application number: CN201720293412.8U
Authority: CN
Inventors: 赵宁; 王长敬; 袁泉
Original assignee: Chung Yang Electronics (tianjin) Co Ltd
Current assignee: Chung Yang Electronics (tianjin) Co Ltd
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2017-11-24
Anticipated expiration: 2027-03-24

Abstract

The utility model discloses a kind of reactive power compensator, including housing and the reactor being placed in the housing, controller, the first compensating unit, the second benefit unit, the 3rd compensating unit and at least one 4th compensating unit, connected after first compensating unit and the second compensating unit parallel connection with the 3rd compensating unit, branch road is compensated to be formed, electric power loop is accessed after the compensation branch road, reactor and at least one 4th compensating unit parallel connection；First compensating unit, the second compensating unit, the 3rd compensating unit and the 4th compensating unit are by IGCT with capacitor bank into the reactor and each IGCT are connected with the controller.By the setting of multiple compensating units, the burden of rectification change is alleviated, reduces overvoltage, the generation of excessively stream, protective effect is served to equipment, improve the overall explosion-proof performance of compensation device.

Description

Reactive power compensator

Technical field

The utility model belongs to the reactive power compensator of power system.

Background technology

Compensation using reactive power is one of important means for improving the quality of power supply.Reactive-load compensation improve power because Number, reduction circuit loss, the place capacity that reduces, the safe and reliable operation for ensuring power supply and electrical equipment etc. effect are obvious. But the defencive function of equipment itself is seldom considered in present reactive compensation module, especially in the case of overvoltage, excessively stream or excess temperature It is easy to set off an explosion, in some instances it may even be possible to cause second short circuit and cause large area short circuit and burn.

Utility model content

For the less protection technique problem for considering equipment itself of reactive-load compensation present in prior art, the utility model A kind of reactive power compensator is provided, can prevent equipment from the accidents such as blast occur.

In order to solve the above technical problems, the technical solution adopted in the utility model is：

A kind of reactive power compensator, including housing and the reactor that is placed in the housing, controller, the first compensation are single Member, second mend unit, the 3rd compensating unit and at least one 4th compensating unit, and first compensating unit and the second compensation are single Connected after first parallel connection with the 3rd compensating unit, to form compensation branch road, compensation branch road, reactor and at least one institute Electric power loop is accessed after stating the 4th compensating unit parallel connection；First compensating unit, the second compensating unit, the 3rd compensating unit and 4th compensating unit is by IGCT with capacitor bank into the reactor and each IGCT connect with the controller Connect.

Preferably, the controller is also associated with temperature sensor, fan control switch and audible-visual annunciator, the wind Fan controlling switch is with setting the fan in the housing to be connected, and the temperature sensor is arranged in the housing, to detect The temperature in housing is stated, and the temperature detected is sent to the controller, to exceed predetermined value in the temperature value detected When control the fan control switch to start fan, while control the audible-visual annunciator to alarm.

Preferably, the capacitor includes cylinder, top cover, binding post and electric capacity core body, the binding post is located at The top of the top cover, the inner bottom part of the cylinder are provided with hemispheric supporting table, the support made of elastic rubber material The inner hollow of platform, the electric capacity core body are resisted against in the supporting table, and are connected by wire with the binding post；It is described The inwall of cylinder has the face of cylinder and round table surface and is gradually reduced the internal diameter of the cylinder successively from top to bottom, the top cover button Top together in the cylinder and with the outer surface coordinated with the inwall of the cylinder, the top cover is towards in the cylinder The one side of bottom is evenly equipped with least three extension springs by symmetrical axle center of the center of the top cover, and between multiple extension springs The face center of top cover be provided with a groove, the other end of the extension spring is connected on pin, the center of multiple pins It is located in the same horizontal plane.

As further preferred, the outer wall of the cylinder is evenly equipped with multiple annular grooves from top to bottom.

As further preferred, the depth of multiple annular grooves gradually increases from top to bottom.

Compared with prior art, beneficial effect possessed by the utility model is：By the setting of multiple compensating units, subtract The burden that light rectification becomes, reduces overvoltage, the generation of excessively stream, protective effect is served to equipment；By changing capacitor Structure, improve the overall explosion-proof performance of compensation device.

Brief description of the drawings

Fig. 1 is a kind of block diagram of reactive power compensator in the utility model；

Fig. 2 is a kind of cross section structure diagram of the capacitor of reactive power compensator in the utility model.

In figure：

The compensating units of 1- first；The compensating units of 2- second；

The compensating units of 3- the 3rd；The compensating units of 4- the 4th；

5- capacitors；51- cylinders；

52- top covers；53- binding posts；

54- electric capacity core bodys；55- supporting tables；

56- extension springs；57- pins；

58- grooves；59- annular grooves；

6- controllers；7- IGCTs；

8- reactors；9- temperature sensors；

10- fan control switches；11- audible-visual annunciators.

Embodiment

It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art be better understood from the technical solution of the utility model Example is applied to elaborate to the utility model.

As shown in figure 1, embodiment of the present utility model discloses a kind of reactive power compensator, including housing and it is placed in housing Interior reactor 8, controller 6, the first compensating unit 1, second benefit unit 2, the 3rd compensating unit 3 and at least one 4th compensation Connected after unit 4, the first compensating unit 1 and the parallel connection of the second compensating unit 2 with the 3rd compensating unit 3, to compensate branch road, compensation branch Electric power loop is accessed after road, reactor 8 and at least one parallel connection of 4th compensating unit 4；The compensation of first compensating unit 1, second is single First 2, the 3rd compensating unit 3 and the 4th compensating unit 4 form by IGCT 7 and capacitor 5, reactor 5 and each IGCT 7 It is connected with controller 6.

In order to further control the temperature in housing, preferably to play explosion-proof effect, controller 6 is also associated with temperature Sensor 9, fan control switch 10 and audible-visual annunciator 11, fan control switch 10 with setting the fan in housing (in figure not Show) connection, temperature sensor 9 is arranged in housing, to detect the temperature in housing, and the temperature detected is sent to control Device 6 processed, to control fan control switch 10 to start fan when the temperature value detected exceedes predetermined value, while control acousto-optic report Alert device 11 is alarmed.

In the present embodiment, as shown in Fig. 2 capacitor 5 includes cylinder 51, top cover 52, binding post 53 and electric capacity core body 54, Binding post 53 is located at the top of top cover 52, and the inner bottom part of cylinder 51 is provided with hemispheric supporting table made of elastic rubber material 55, the inner hollow of supporting table 55, electric capacity core body 54 is resisted against in supporting table 55, and is connected by wire with binding post 53； The inwall of cylinder 51 has the face of cylinder and round table surface and is gradually reduced the internal diameter of cylinder 51 successively from top to bottom, and top cover 52 fastens In the top of cylinder 51 and with the outer surface coordinated with the inwall of cylinder 51, one side of the top cover 52 towards the inner bottom part of cylinder 51 Be evenly equipped with least three extension springs 56 using the center of top cover 52 as symmetrical axle center, and the top cover 52 between multiple extension springs 56 should Face (towards the inner bottom surface of cylinder 51) center is provided with a groove 58, and the other end of extension spring 56 is connected on pin 57, pin 57 Insert on the inwall of cylinder 51, multiple pins 57 are centrally located in same level.The inwall of cylinder 51 is using truncated cone-shaped Outer surface, explosion time is oriented impulsive force upward, and top cover 52 is further jacked up by groove 58, top cover 52 is in impulsive force Effect is lower to depart from cylinder 51, and until the air pressure in cylinder 51 reduces, top cover 52 is fastened on cylinder in the presence of extension spring 56 again On 51, it can prevent explosion time monoblock cover plate 1 from flying up.

The outer wall of cylinder 51 is evenly equipped with multiple annular grooves 59 from top to bottom, and when the temperature rise in housing, air pressure can pass through Annular groove 59 forms extruding force into cylinder 51, the air pressure in cylinder 51 is easier impact top cover 52 upwards, to avoid cylinder 51 produce explosion.Further, since the wall thickness of cylinder 51 gradually increases from top to bottom, the depth of multiple annular grooves 59 is from top to bottom It gradually increase, can both coordinate the wall thickness of cylinder 51, can make to be formed again to the larger inside extruding force of cylinder 51, further Avoid the explosion of cylinder 51.

Above example is only exemplary embodiment of the present utility model, is not used in limitation the utility model, and this practicality is new The protection domain of type is defined by the claims.Those skilled in the art can be in essence of the present utility model and protection domain It is interior, various modifications or equivalent substitution are made to the utility model, this modification or equivalent substitution also should be regarded as new in this practicality In the protection domain of type.

Claims

1. a kind of reactive power compensator, it is characterised in that including housing and the reactor being placed in the housing, controller, the One compensating unit, second mend unit, the 3rd compensating unit and at least one 4th compensating unit, first compensating unit and the Connected after two compensating unit parallel connections with the 3rd compensating unit, to form compensation branch road, the compensation branch road, reactor and extremely Electric power loop is accessed after a few 4th compensating unit parallel connection；First compensating unit, the second compensating unit, the 3rd mend Repay unit and the 4th compensating unit by IGCT and capacitor bank into, the reactor and each IGCT with it is described Controller connects.

2. reactive power compensator according to claim 1, it is characterised in that the controller is also associated with TEMP Device, fan control switch and audible-visual annunciator, the fan control switch is with setting the fan in the housing to be connected, the temperature Degree sensor is arranged in the housing, to detect the temperature in the housing, and the temperature detected is sent to the control Device processed, to control the fan control switch to start fan when the temperature value detected exceedes predetermined value, while described in control Audible-visual annunciator is alarmed.

3. reactive power compensator according to claim 1, it is characterised in that the capacitor includes cylinder, top cover, wiring Terminal and electric capacity core body, the binding post are located at the top of the top cover, and the inner bottom part of the cylinder is provided with elastic caoutchouc material Hemispheric supporting table made of material, the inner hollow of the supporting table, the electric capacity core body are resisted against in the supporting table, and It is connected by wire with the binding post；The inwall of the cylinder has the face of cylinder and round table surface and makes institute successively from top to bottom The internal diameter for stating cylinder is gradually reduced, and the top cover is fastened on the top of the cylinder and has what is coordinated with the inwall of the cylinder Outer surface, the one side of the top cover towards the inner bottom part of the cylinder are evenly equipped with least by symmetrical axle center of the center of the top cover Three extension springs, and the face center of the top cover between multiple extension springs is provided with a groove, the other end of the extension spring It is connected on pin, multiple pins are centrally located in same level.

4. reactive power compensator according to claim 3, it is characterised in that the outer wall of the cylinder is evenly equipped with from top to bottom Multiple annular grooves.

5. reactive power compensator according to claim 4, it is characterised in that the depth of multiple annular grooves is from top to bottom Gradually increase.