CN1140919A - Gas insulation switch device - Google Patents

Abstract

The invention discloses a gas insulation switch apparatus, which includes a container(21) having a front part container (22) and a rear part container (23) to house the switch unit (36) together, and the switch unit (36) is inserted and assembled into the container (21) from the opening of the front surface of the front container (22). This apparatus is easy for assembling work and the number of gas sealing position can be reduced.

Description

Gas-insulated switchgear device

The present invention relates in gas sealed container, include in the gas-insulated switchgear device of a plurality of switches.

For example, Fig. 7 is illustrated in the circuit diagram that the spy opens the gas-insulated switchgear device in the past shown in clear 51-30330 communique etc., and Fig. 8 is the front view that installs among Fig. 7, and Fig. 9 is the end view of Fig. 8, and Figure 10 is an X-X line cutaway view among Fig. 8.In the drawings, 1a, 1b, 1c are respectively the vacuum type switches, 2a, 2b, 2c are the circuit breakers with rotary type movable contact, the 3rd, be used for switch 1a-1c and circuit breaker 2a-2c are included in the container of insulating properties gas, as Fig. 8 and shown in Figure 9, this container 3 divides the dress that comes mutually with each of threephase switch device 1a-1c and circuit breaker 2a-2c.

4a, 4b, 4c be supported on the container 3 and be used to be electrically connected the end of circuit breaker 2a-2c and container 3 outsides draw part, the 5th, across between each container 3 and be electrically connected the main circuit conductor of each switch 1a-1c, 6 are arranged on the ring flange on the side plate 3a of each container 3, and this ring flange 6 has O shape annular groove 6a.The 7th, be accommodated in the O V-shaped ring among the O type annular groove 6a, the 8th, be fixed on the hollow sleeve on the side plate 3a of each container 3 with methods such as welding, the 9th, by the bolt of aforementioned hollow sleeve 8 each container 3 of connection, the 10th, nut, 11 are mounted in the lid on container 3 two ends, and 12 are mounted in the operating mechanism of container 3 fronts.

Make in the foregoing gas-insulated switchgear device in the past, by means of connecting switch 1a, 1c and circuit breaker 2a, 2b, make and draw part 4a and draw part 4b and become conducting state, again by means of connecting switch 1b and circuit breaker 2b, carry out drawing part 4b along separate routes, thus to draw the electric equipments (not shown) such as for example transformer that part 4b is connected and power.

Gas-insulated switchgear device in the past, because of aforementioned structure, thus must in container 3, carry out assembling operation, and because of its assembling space is little, so there is the problem of assembling operation difficulty.In addition, independent because of each container 3, so the junction of container 3 and sealing place are many, exist to connect the problem that wastes time and energy in the operation.Also must be difficult to carry out the container 3 inner problems that connect the installation exercise of usefulness so exist at the main circuit conductor 5 that connects after the connection operation of container 3 between each unit.

The present invention is a problem to solve foregoing problems, its objective is that obtaining minimum limit ground carries out the internal tank assembling operation and make operation be easy to gas-insulated switchgear device with simple structure.

The gas-insulated switchgear device relevant with claim 1 of the present invention, in comprising the gas-insulated switchgear device of switch element with a plurality of switches and the container that holds this switch element, container is once packed switch element wherein into entirely, and is provided for inserting the opening of switch element in the front of container.

The gas-insulated switchgear device relevant with claim 2 of the present invention uses the container with anterior container and rear portion container, and forwardly opening is set and draws part on the container.

The gas-insulated switchgear device relevant with claim 3 of the present invention is near the central portion of the depth direction of container, and container is separated into anterior container and rear portion container.

The gas-insulated switchgear device relevant with claim 4 of the present invention is configured in the operating mechanism of switch element the front of container.

The gas-insulated switchgear device relevant with claim 5 of the present invention, forwardly mounting support comprises switch element and the critical part class of drawing part in the container.

In the invention of claim 1, switch element inserts in the container and installs from the opening of container front after assembling finishes.

In the invention of claim 2, opening is set and draws part by means of container forwardly, assembling operation becomes from the unidirectional operation of carrying out previously, and is simple and easy to do.

In the invention of claim 3, because of near central portion, container being divided into two parts, so improved manufacturability.

In the invention of claim 4, because of with operating mechanism with draw part and be configured in the front, describedly can implement installation exercise, cable construction and Maintenance and Repair by the front, improved operability.

In the invention of claim 5,, need in the container of rear portion, they be installed, and can before the installation of rear portion container, carry out the connection operation of main circuit bus etc. by means of mounting support critical part class in the container forwardly.

As mentioned before, the gas-insulated switchgear device of the invention of claim 1, because of be provided for inserting the opening of switch element in the front of container, so can and can easily carry out assembling operation at the outside of container assembling switch element, in addition, can before installing to container, implement functional tests such as switching characteristic test, carry out necessary adjustment easily.Except that these effects, because of container that switch element is once packed into entirely, so reduce the effect of sealing place in addition.

The gas-insulated switchgear device of the invention of claim 2, the container that has anterior container and rear portion container because of use, and forwardly opening is set and draws part on the container, so except having the effect identical with the invention of aforementioned claim 1, also have assembling operation to become, thereby have simple effect from the unidirectional operation of carrying out previously.

The gas-insulated switchgear device of the invention of claim 3, cause is near the central portion of the depth direction of container, container is separated into anterior container back container, so except having the effect identical, can more easily carry out switch element is installed to the effect of the operation in the container in addition with the invention of aforementioned claim 2.

The gas-insulated switchgear device of the invention of claim 4, be configured in the front of container because of operating mechanism with switch element, so except having the effect identical with the invention of aforementioned claim 2, can implement installation exercise, cable construction and Maintenance and Repair from the front in addition, improve the effect of operability.

The gas-insulated switchgear device of the invention of claim 5, because of mounting support in the container forwardly comprises switch element and draws the critical part class of part, so except having the effect identical with the invention of aforementioned claim 2, the critical part class need be installed in the container of rear portion in addition, can before the installation of rear portion container, carry out the effect of the connection operation of main circuit bus etc.

Fig. 1 represents the end view based on the gas-insulated switchgear device internal structure of the embodiment of the invention 1.

The end view of switch element in Fig. 2 presentation graphs 1.

Fig. 3 is the front view of Fig. 2.

The front view of container in Fig. 4 presentation graphs 1.

The end view of container in Fig. 5 presentation graphs 1.

Fig. 6 represents the end view based on the gas-insulated switchgear device internal structure of the embodiment of the invention 2.

Fig. 7 represents the circuit diagram of an example of gas-insulated switchgear device in the past.

Fig. 8 is the front view that installs among Fig. 7.

Fig. 9 is the end view of Fig. 8.

Figure 10 is an X-X line cutaway view among Fig. 8.

Below, with reference to accompanying drawing embodiments of the invention are described.

Embodiment 1

Fig. 1 represents the end view based on the gas-insulated switchgear device internal structure of the embodiment of the invention 1, and the end view of switch element in Fig. 2 presentation graphs 1, Fig. 3 are the front views of Fig. 2, the front view of container in Fig. 4 presentation graphs 1, the end view of container in Fig. 5 presentation graphs 1.

In the drawings, the 21st, have the container of anterior container 22 and rear portion container 23.As shown in Figure 4, the cover plate 22a that closes the opening 20 (Fig. 1) that is used to insert and install a plurality of switch elements and draw part installation portion 22b forwardly is set in the container 22.Forwardly among the ring flange 22c of rear portion container 23 separated places of container 22 seal groove 22d is set, can be tightly connected with the ring flange 23a of rear portion container 23.

The 24th, run through the part of drawing of anterior container 22, at one end stube cable connector 25.26 is main circuit conductors that an end is connected with the other end of drawing part 24, and its other end is connected with the end of main circuit conductor 26a shown in Figure 3.On the other end of this main circuit conductor 26a, set circuit breaker 2 with rotary type movable contact.The 27th, the operating mechanism of operating by breaker operator axle 28 and 29 pairs of circuit breakers 2 of insulation link rod.

The 30th, as the vacuum type switch of the switch that is connected in series with circuit breaker 2, respectively in the movable and fixing docking point of dress and the movable contact side is connected on the insulating rod 31 by movable terminal 30a.The 32nd, the operating mechanism that is connected with insulating rod 31 by operating axis 33, the 34th, dress is received and the framework of structural members such as supporting vacuum type switch 30 and circuit breaker 2, and the 35th, the mounting base of installation frame 34 and operating mechanism 27,32 etc.

In addition, the composing method of the gas-insulated switchgear device of this embodiment 1 is with Fig. 2 and switch element 36 shown in Figure 3, as shown in Figure 1, in pack into anterior container 22 and the rear portion container 23, and to connect main circuit bus 5 and main circuit conductor 26 a plurality ofly.Switch element 36 has the function of a cover threephase switch unit certainly, and by the action of operating mechanism 27,32, operating axis 28,33 rotates, by insulation link rod 29, circuit breaker 2 carries out switch motion, utilizes again to make insulating rod 31 rise, descend, and vacuum shape switch 30 carries out switch motion.That is to say that switch element 36 has circuit breaker 2, breaker operator axle 28, insulation crosshead 29, three vacuum type switches 30, three insulating rods 31, operating axis 33 and frameworks 34.

In the gas-insulated switchgear device of aforementioned structure, assemble in the outside of container 21 respectively because of three switch elements 36, so guarantee the operating space, carry out assembling operation easily.In addition, can before installing to container 21, implement functional tests such as switching characteristic test, and can easily carry out essential adjustment.Again because of container 22 is forwardly inserted and is installed switch element 36, lead-through 24 and cable connector 25 by the front, promptly unidirectional installation, so can work for the simplification of assembling.

In addition, anterior container 22 and 23 conducts of rear portion container are divided into two parts near the middle part of front and back, and the container of a plurality of switch elements 36 of once packing into entirely, can reduce air seal place.Because of only forwardly container 22 switch elements 36 are installed and are drawn part 24 classes such as critical part such as grade, so can before rear portion container 23 is installed, carry out the connection operation of main circuit bus 5 grades, easy to operate.Because of the former configuration operating mechanism 27,32 of container 22 forwardly with draw part 24 etc., so can implement installation, cable construction and Maintenance and Repair etc. by the front certainly, operability is good again.

Embodiment 2

In previous embodiment 1, though adopt at opening 20 and draw part the shape that has step difference between the 22b is installed as anterior container 22, the shape of container is not limited thereto.As shown in Figure 6, for example also can make the structure that almost flat anterior container 41 is installed on rear portion container 42.

In addition, in aforementioned each embodiment,, also can be other switching device such as gas switch for example though be illustrated in example as switching device with vacuum type switch 30.

Moreover, in aforementioned each embodiment,, use respectively individually also can reach identical effect though be illustrated with vacuum type switch 30 and circuit breaker 2 tandem compounds.

Claims (5)

1. gas-insulated switchgear device, comprise switch element with a plurality of switches and the container that holds this switch element, it is characterized in that, the described container described switch element of once packing into entirely, and be provided for inserting the opening of described switch element in the front of described container.

2. gas-insulated switchgear device as claimed in claim 1 is characterized in that, container has anterior container and rear portion container, and opening is set on described anterior container and draws part.

3. gas-insulated switchgear device as claimed in claim 2, its feature also be, near the central portion of the depth direction of container, container is separated into anterior container and rear portion container.

4. gas-insulated switchgear device as claimed in claim 2 is characterized in that, the operating mechanism of switch element is configured in the front of container.

5. as each described gas-insulated switchgear device of claim 2 to 4, it is characterized in that forwardly mounting support comprises the critical part class of switch element and lead-out wire in the container.

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