CN204243770U - A low-voltage capacitor compensation cabinet for automatic fire extinguishing - Google Patents

Abstract

The utility model relates to a kind of low-voltage capacitance compensating cabinet of self-extinguishing, it comprises cabinet, there is top cover cabinet upper end, cabinet comprises Over-The-Counter and lower cabinet, Over-The-Counter front end face has Over-The-Counter door, Over-The-Counter door there is ammeter, varmeter, power factor meter, universal seclector, idle compensating control and switch with knifeshaped fuse interface, Over-The-Counter inner top has dry powder extinguisher, all there is jet pipe at keep left on the downside of dry powder extinguisher two ends of keeping right, nozzle-end has glass envelope, there is Pressure gauge dry powder extinguisher lower end, switch with knifeshaped fuse and lightning arrester is had in Over-The-Counter, current transformer is had below switch with knifeshaped fuse, lower cabinet front end face has lower cabinet door, lower cabinet door there is indicator light with horizontal form, miniature circuit breaker is had in lower cabinet, A.C. contactor, thermal relay, and AC capacitor, there is supporting bracket AC capacitor lower end, there is base cabinet lower end, total the utility model has compact conformation, heat radiation is good, fire extinguishing in time, the advantage that result of use is good.

Description

A low-voltage capacitor compensation cabinet for automatic fire extinguishing

technical field

The utility model belongs to the technical field of electric equipment, in particular to a low-voltage capacitor compensation cabinet, in particular to a low-voltage capacitor compensation cabinet for automatic fire extinguishing.

Background technique

Most of the load types in the power system are inductive loads, coupled with the widespread use of power electronic equipment by power companies, the power factor of the grid is low, and the low power factor reduces the utilization of equipment, increases power supply investment, and damages The voltage quality reduces the service life of the equipment and greatly increases the line loss. In order to improve the energy waste caused by the low power factor of the power grid and the unfavorable factors for power supply production, it is necessary to use a capacitor compensation cabinet to improve the power factor. However, due to the use of electrical equipment The high frequency is easy to cause high temperature fire, so a low-voltage capacitor compensation cabinet that can automatically extinguish the fire is of great practical significance.

Contents of the invention

The purpose of the utility model is to provide a low-voltage capacitor compensation cabinet with a reasonable layout and self-extinguishing fire in order to overcome the deficiencies of the prior art.

The purpose of this utility model is achieved in this way: a low-voltage capacitor compensation cabinet for automatic fire extinguishing, which includes a cabinet body, the upper end of the cabinet body is provided with a top cover, and the cabinet body includes an upper cabinet and a lower cabinet. The front end of the upper cabinet is provided with an upper cabinet door, and the upper cabinet door is provided with an ammeter, a reactive power meter, a power factor meter, a universal transfer switch, a reactive power compensation controller, and a knife fuse switch interface. A dry powder fire extinguisher is installed on the top of the cabinet, and nozzle pipes are arranged on the lower side of the dry powder fire extinguisher from the left to the right. The end of the nozzle pipe is provided with a glass bubble, and the lower end of the dry powder fire extinguisher is provided with a pressure gauge. The upper cabinet is provided with a knife fuse switch and a lightning arrester, a current transformer is provided below the knife fuse switch, and a lower cabinet door is provided on the front end of the lower cabinet, and the lower cabinet door is arranged horizontally The form is provided with an indicator light, the lower cabinet is provided with a miniature circuit breaker, an AC contactor, a thermal relay, and an AC capacitor, the lower end of the AC capacitor is provided with a support plate, and the lower end of the cabinet is provided with a base .

The knife fuse switch interface corresponds to the position of the knife fuse switch in the lower cabinet.

The fire extinguishing agent in the dry powder fire extinguisher is sodium bicarbonate fire extinguishing agent.

The number of said indicator lights is the same as the number of AC capacitors.

The support plate is square, the length of the support plate is the same as the length of the lower cabinet, and the width of the support plate is 1.2-1.5 times the length of the AC capacitor.

The temperature at which the glass bubbles burst is 68°-80°.

Beneficial effects of the utility model: the utility model uses the reactive power meter, power factor meter and ammeter in the upper cabinet door to monitor the reactive power value, power factor and current value in real time during work, which is very convenient Fast, the knife fuse switch interface can directly operate the knife fuse switch to perform on-off operation of the capacitor compensation cabinet. The glass ball in the nozzle of the dry powder fire extinguisher in the upper cabinet is blasted by heat after the capacitor compensation cabinet accidentally catches fire, and the dry powder fire extinguisher The sodium bicarbonate fire extinguishing agent is sprayed out for fire extinguishing treatment. At the same time, the sodium bicarbonate fire extinguishing agent can be insulated while extinguishing the fire. The pressure gauge at the lower end of the dry powder fire extinguisher can monitor the pressure value in the dry powder fire extinguisher in real time to ensure that there is enough pressure in the event of a fire. The pressure will spray the fire extinguishing agent. Once the pressure value is insufficient, replace it in time. The installation of components is very regular and compact, which makes the capacitor compensation cabinet more conducive to heat dissipation. Whether it works normally or not, the utility model has the advantages of compact structure, good heat dissipation, timely fire extinguishing and good use effect in general.

Description of drawings

Fig. 1 is the front view of the utility model.

Fig. 2 is a schematic structural view of the utility model.

Fig. 3 is a schematic structural view of a dry powder fire extinguisher in the present invention.

In the figure: 1. Cabinet body 2. Top cover 3. Upper cabinet 301. Upper cabinet door 4. Lower cabinet 401. Lower cabinet door 5. Ammeter 6. Reactive power meter 7. Power factor meter 8. Universal transfer switch 9. Reactive power compensation controller 10, knife fuse switch interface 11, dry powder fire extinguisher 12, nozzle 13, glass bulb 14, pressure gauge 15, knife fuse switch 16, arrester 17, current transformer 18, indicator light 19, miniature circuit breaker 20 , AC contactor 21, thermal relay 22, AC capacitor 23, support plate 24, base.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described further.

Example 1

As shown in Figure 1-3, a low-voltage capacitor compensation cabinet for automatic fire extinguishing, it includes a cabinet body 1, the upper end of the cabinet body 1 is provided with a top cover 2, and the cabinet body 1 includes an upper cabinet 3 and a lower cabinet 4. The front end of the upper cabinet 3 is provided with an upper cabinet door 301, and the upper cabinet door 301 is provided with an ammeter 5, a reactive power meter 6, a power factor meter 7, a universal transfer switch 8, and a reactive power compensation control device 9 and a knife melting switch interface 10, the top of the upper cabinet 3 is provided with a dry powder fire extinguisher 11, and the lower side of the dry powder fire extinguisher 11 is provided with nozzles 12 on the left and right ends, and the nozzles 12 A glass bubble 13 is provided at the end, a pressure gauge 14 is provided at the lower end of the dry powder fire extinguisher 11, a knife melting switch 15 and a lightning arrester 16 are arranged in the upper cabinet 3, and a current mutual inductance is arranged below the knife melting switch 15. 17, the front end of the lower cabinet 4 is provided with a lower cabinet door 401, and the lower cabinet door 401 is provided with indicator lights 18 in a horizontal arrangement, and a miniature circuit breaker 19 is arranged in the lower cabinet 4 , an AC contactor 20, a thermal relay 21, and an AC capacitor 22, the lower end of the AC capacitor 22 is provided with a support plate 23, and the lower end of the cabinet 1 is provided with a base 24.

When the utility model is in use: the knife-melt switch is operated through the knife-melt switch interface to perform the breaking operation of the compensation cabinet, which is very convenient and fast. The reactive power meter, power factor meter and ammeter in the upper cabinet door can monitor the working time The reactive power value, power factor, and current value. The dry powder fire extinguisher in the upper cabinet can monitor the pressure value in the dry powder fire extinguisher in real time. Once the pressure in the fire extinguisher is too low, it will remind the inspection personnel to replace it. The fire extinguisher can be more thorough in the fire extinguishing of electrical equipment, and the fire extinguishing effect is very obvious. The indicator light and the AC capacitor can timely display whether the reactive power compensation circuit is working normally or not. In general, the utility model has compact structure, timely fire extinguishing, and effective use good points.

Example 2

As shown in Figure 1-3, a low-voltage capacitor compensation cabinet for automatic fire extinguishing, it includes a cabinet body 1, the upper end of the cabinet body 1 is provided with a top cover 2, and the cabinet body 1 includes an upper cabinet 3 and a lower cabinet 4. The front end of the upper cabinet 3 is provided with an upper cabinet door 301, and the upper cabinet door 301 is provided with an ammeter 5, a reactive power meter 6, a power factor meter 7, a universal transfer switch 8, and a reactive power compensation control device 9 and a knife melting switch interface 10, the top of the upper cabinet 3 is provided with a dry powder fire extinguisher 11, and the lower side of the dry powder fire extinguisher 11 is provided with nozzles 12 on the left and right ends, and the nozzles 12 A glass bubble 13 is provided at the end, a pressure gauge 14 is provided at the lower end of the dry powder fire extinguisher 11, a knife melting switch 15 and a lightning arrester 16 are arranged in the upper cabinet 3, and a current mutual inductance is arranged below the knife melting switch 15. 17, the front end of the lower cabinet 4 is provided with a lower cabinet door 401, and the lower cabinet door 401 is provided with indicator lights 18 in a horizontal arrangement, and a miniature circuit breaker 19 is arranged in the lower cabinet 4 , an AC contactor 20, a thermal relay 21, and an AC capacitor 22, the lower end of the AC capacitor 22 is provided with a support plate 23, and the lower end of the cabinet 1 is provided with a base 24.

The knife fuse switch interface 10 corresponds to the position of the knife fuse switch 15 in the lower cabinet.

The fire extinguishing agent in the described dry powder fire extinguisher 11 is sodium bicarbonate fire extinguishing agent.

The number of said indicator lights 18 is the same as the number of AC capacitors 22 .

The support plate 23 is square, the length of the support plate 23 is the same as that of the lower cabinet 4 , and the width of the support plate 23 is 1.2-1.5 times of the length of the AC capacitor 22 .

The temperature at which the glass bubble 13 bursts is 68°-80°.

When the utility model is in use: the knife-melt switch is operated through the knife-melt switch interface to perform the breaking operation of the compensation cabinet, which is very convenient and fast. The reactive power meter, power factor meter and ammeter in the upper cabinet door can monitor the working time The reactive power value, power factor and current value. The dry powder fire extinguisher in the upper cabinet can monitor the pressure value in the dry powder fire extinguisher in real time. Once the pressure in the fire extinguisher is too low, it will remind the inspection personnel to replace it. The glass ball in the nozzle of the dry powder fire extinguisher in the cabinet is blasted by heat after the capacitor compensation cabinet accidentally catches fire, and the sodium bicarbonate fire extinguishing agent in the dry powder fire extinguisher is sprayed out for fire extinguishing treatment. At the same time, the insulation treatment is carried out, and the fire extinguishing effect is very obvious. The correspondence between the indicator light and the AC capacitor can timely display whether the reactive power compensation circuit is working normally or not. The installation of components is very regular and compact, which makes the capacitor compensation cabinet more conducive to heat dissipation. The utility model has the advantages of compact structure, good heat dissipation, timely fire extinguishing and good use effect.

Claims (6)

1. the low-voltage capacitance compensating cabinet of a self-extinguishing, it comprises cabinet, it is characterized in that: described cabinet upper end is provided with top cover, described cabinet comprises Over-The-Counter and lower cabinet, described Over-The-Counter front end face is provided with Over-The-Counter door, described Over-The-Counter door is provided with ammeter, varmeter, power factor meter, universal seclector, idle compensating control and switch with knifeshaped fuse interface, described Over-The-Counter inner top is provided with dry powder extinguisher, keep left on the downside of described dry powder extinguisher two ends of keeping right are provided with jet pipe, described nozzle-end is provided with glass envelope, described dry powder extinguisher lower end is provided with Pressure gauge, switch with knifeshaped fuse and lightning arrester is provided with in described Over-The-Counter, current transformer is provided with below described switch with knifeshaped fuse, described lower cabinet front end face is provided with lower cabinet door, described lower cabinet door is provided with indicator light with horizontal form, miniature circuit breaker is provided with in described lower cabinet, A.C. contactor, thermal relay, and AC capacitor, described AC capacitor lower end is provided with supporting bracket, described cabinet lower end is provided with base.

2. the low-voltage capacitance compensating cabinet of a kind of self-extinguishing according to claim 1, is characterized in that: described switch with knifeshaped fuse interface is corresponding with the switch with knifeshaped fuse position in lower cabinet.

3. the low-voltage capacitance compensating cabinet of a kind of self-extinguishing according to claim 1, is characterized in that: the extinguishing chemical in described dry powder extinguisher is sodium acid carbonate extinguishing chemical.

4. the low-voltage capacitance compensating cabinet of a kind of self-extinguishing according to claim 1, is characterized in that: the quantity of described indicator light is identical with the quantity of AC capacitor.

5. the low-voltage capacitance compensating cabinet of a kind of self-extinguishing according to claim 1, is characterized in that: described supporting bracket is that the length of square, described supporting bracket is identical with lower cabinet length, described supporting bracket width be the 1.2-1.5 of AC capacitor length doubly.

6. the low-voltage capacitance compensating cabinet of a kind of self-extinguishing according to claim 1, is characterized in that: the temperature of described glass envelope explosion is 68 °-80 °.