JPH04295210A - Moving apparatus for gas insulated machine - Google Patents

Abstract

PURPOSE:To provide an apparatus for stably moving a gas insulated machine having high center of gravity such as a gas insulated circuit breaker provided with high bushings. CONSTITUTION:Four machine side suspension lugs are provided at a position lower than the center of gravity 6 of a gas insulated circuit breaker 1 to be moved. A base 3 wider than a space defined by lines connecting between four suspension lugs and a hook 5 of crane for suspending the machine is disposed at a position higher than the center of gravity of the machine. Suspension lugs are provided at four corners of upper and lower faces of the base 3. A wire 4a is suspended from the hook 5 of a crane and jointed, at the lower end thereof, to the suspension lugs on the upper face of the base 3. Suspension lugs arranged at four corners on the lower face of the base 3 are jointed through a wire 4b to the machine side suspension lugs. The space between the wires 4a, 4b are enlarged in the way by means of the base 3 to increase the angle of the wire suspended from the hook 5 thus enhancing the stability.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving device for electric power gas circuit breakers and other gas insulated equipment that is moved with a bushing attached.

0003

2. Description of the Related Art In low-pressure class gas circuit breakers, circuit breakers for three phases and their bushings are installed all at once on a base of a certain size. Moreover, the base is guaranteed to have sufficient strength, and the width is large and the center of gravity is low.
When moving such a gas circuit breaker, the entire three-phase circuit breaker including the base can be lifted and moved using a crane or the like.

However, when it comes to high-voltage equipment, circuit breakers are separated for each phase without using a common base, and the bushings are long and large enough to ensure high-voltage insulation creepage distance. something is needed. As a result, the center of gravity of the gas circuit breaker, including the bushing, becomes high, and it cannot be moved as is with a crane or the like. In addition, when a gas circuit breaker with a tall bushing is lifted using wire, the wire becomes long and the angle of the wire connecting the hanging ear on the gas circuit breaker side to the hook of a crane becomes narrower, making it more likely to fall over. It becomes easier.

[0005] For this reason, conventionally, when installing a gas circuit breaker on-site, the main body of the circuit breaker had to be installed first, and the bushing was attached afterwards.

[0006]

[Problem to be solved by the invention] However, in the method of assembling the circuit breaker body and bushing on site as described above,
After assembly, an installation adjustment test is required, which has the drawback that it takes several weeks from the installation of the circuit breaker to the completion of the test and the start of operation.

In particular, in the case of new construction, the construction period can be predicted in advance, but when replacing conventional air circuit breakers and gas circuit breakers at existing substations, etc., a long period of power outage is required, and the power This has become a major problem in terms of stable supply.

[0008] Such problems occur not only in the above-mentioned gas circuit breakers but also in other gas insulated equipment as the capacity of gas insulated equipment increases.

The present invention was proposed to solve the problems of the prior art as described above, and its purpose is to stably move gas insulated equipment (for example, an assembled bushing and gas circuit breaker). The purpose of the present invention is to provide a moving device for gas insulated equipment that can shorten the on-site installation period.

[Configuration of the invention]

[0011]

[Means for Solving the Problems] In order to achieve the above object, the moving device for gas insulated equipment of the present invention has four hanging ears on the equipment side that are provided at a position below the center of gravity of the equipment to be moved. and a base that is located at a higher position than the center of gravity of the moving equipment and is wider than the line connecting the four hanging ears and the hook of a crane or the like that hangs the equipment, and at the four corners of the top surface of this base. A hanging ear provided, a wire whose lower end is connected to the hanging ear on the upper surface of the base, and whose upper end is lifted by a hook such as a crane, hanging ears provided at the four corners of the lower surface of the base, and a hanging ear on the lower surface of the base, The device is characterized in that it is equipped with a wire that connects a hanging ear on the device side.

0012

[Function] In the present invention having such a configuration, the base installed above the center of gravity is suspended by a crane, etc., so from the perspective of the equipment on the hanging side such as the crane, it is easier to use a device with a lower center of gravity. It becomes the same as moving,
Entire gas insulated equipment can be moved stably.

[0013] Furthermore, since a wide base is provided between the hanging ear of the gas insulated equipment and the hook of a crane or the like that lifts it, the wire is spread outward by this base. As a result, the angle of the wire becomes narrow and the gas insulated equipment is prevented from falling over.

[0014]

[Embodiments] Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings.

(1) First Embodiment...FIGS. 1 to 4 In this embodiment, the moving device of the present invention is used to move a gas circuit breaker 1 equipped with a bushing 2.

In this embodiment, the gas circuit breaker 1 is a horizontal type circuit breaker equipped with a cylindrical metal container extending laterally, and an opening is provided on the upper surface of both left and right ends of the circuit breaker. The bases of the left and right bushings 2 are fixed to the protruding parts. Further, a current transformer case 10 is provided around the outlet of the circuit breaker 1, and a bushing shield 9 is provided around the base of the bushing 2. Furthermore, hanging ears 1a are provided at four locations on the front, rear, right and left sides of the tank of the gas circuit breaker 1.

On the other hand, above the tank of the circuit breaker 1, between the left and right bushings 2, the circuit breaker 1 and the bushings 2
The base 3 is provided at a higher position than the center of gravity 6 of the entire device. The width of the base 3 in the longitudinal and lateral directions is wider than a line connecting the four hanging ears of the circuit breaker 1 and a hook 5 of a crane or the like for hanging equipment. In particular, its width in the front-rear direction is wider than the width of the circuit breaker 1, as shown in the side view of FIG.

As shown in the enlarged perspective view of FIG. 4, hanging ears 3a and 3b are provided at the four upper and lower corners of the base 3, respectively. A wire 4a for suspending the gas circuit breaker 1 is stretched between the four hanging ears 3a on the top surface and a hook 5 such as a crane. On the other hand, 4 on the bottom of the base
A wire 4b is stretched between the four hanging ears 3b and the four hanging ears 1a on the circuit breaker 1 side to connect them.

[0019] In the present invention having such a configuration,
A wire 4a connecting the circuit breaker 1 and a hook 5 of a crane, etc.
, 4b, a wide base 3 is provided between the wires 4a, 4b, and the wires 4a, 4b are spread outward. As a result, the base 3 generates a restoring force in the direction of the tension generated in the wire, so that the circuit breaker 1 and the bushing 2 are prevented from falling. Furthermore, since the base 3 is installed at a higher position than the center of gravity 6 of the entire device including the bushing, when viewed from the hook 5 from which it is hung, it will be the same as when moving a device with a low center of gravity. This eliminates the risk of falling in the car.

[0020] Also, the upper and lower wires 4a, 4b are connected to the base 3.
Since the wire is divided into two parts, no excessive force is applied to the wire, and the wire is safer than a wire in which the middle part of the wire is simply stretched outward.

For these reasons, according to this embodiment, even when the circuit breaker 1 and the bushing 2 are assembled,
It can be stably lifted and moved using a crane. Therefore, it is possible to install the bushing, fill the tank with insulating gas, and test the opening/closing operation in advance at the factory before moving the entire device to the site for installation. As a result, on-site installation time can be significantly shortened, and power outage times can also be shortened when replacing existing equipment.

(2) Second Embodiment...FIGS. 5 to 7 This embodiment further improves stability by adding wires to the previous embodiment. That is, in this second embodiment, a hanging ear 3c is further provided on the lower surface of the base 3, and a hanging ear 2a is also provided on the side of the bushing 2, and both hanging ears 3c, 2a are connected by a wire 4c. be.

According to this second embodiment, the strength is shared against the load in the direction in which the device falls, so that it has an excellent fall prevention effect, and at the same time, the load applied to the hanging ears and other parts of the device is distributed. safety is improved.

(3) Other Embodiments The present invention is not limited to the above-mentioned embodiments.In addition to the combination of a circuit breaker and a bushing, the present invention is not limited to the above-mentioned embodiments. It can be applied to all types of equipment that is high and may fall over when lifted by a crane or the like.

Further, the shapes of the base and the hanging ears are not limited to those shown in the drawings, but can be changed as long as they have sufficient strength.

[0026]

As described above, according to the present invention, even tall and large equipment can be stabilized by simply providing a wide base between the hook of a crane or the like and the hanging ear of gas-insulated equipment. It is possible to provide a moving device that can shorten the installation period of equipment.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a moving device for gas-insulated equipment according to the present invention.

FIG. 2 is a side view of the moving device of FIG. 1.

FIG. 3 is a plan view of the moving device in FIG. 1;

FIG. 4 is a perspective view showing an example of a base used in the moving device of FIG. 1;

FIG. 5 is a front view showing another embodiment of the moving device for gas insulated equipment of the present invention.

FIG. 6 is a side view of the moving device of FIG. 5;

FIG. 7 is a plan view of the moving device of FIG. 5;

[Explanation of symbols]

1...Gas circuit breaker 1a...Hanging ears 2...Bushing 3...Base 3a, 3b...hanging ears 4a, 4b...wire 5...Hook for crane etc. 6...Center of gravity

Claims (1)

[Claims] Claims: 1. Four hanging ears on the equipment side that are provided at a position below the center of gravity of the moving equipment; and four hanging ears that are located at a position higher than the center of gravity of the moving equipment. A base that is wider than the line connecting the hook of a crane, etc. for hanging the equipment, hanging ears provided at the four corners of the top surface of this base, the lower end is connected to the hanging ears on the top surface of the base, and the upper end is connected to the hook of the crane, etc. A gas insulated device characterized by comprising a wire that is lifted by a hook, hanging ears provided at the four corners of the lower surface of the base, and a wire that connects the hanging ears on the lower surface of the base and the hanging ears on the equipment side. Mobile device.