JPS60162402A - Shiya disconnector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Technical field of invention] The present invention is housed in a gas insulated cubicle and has a Related to rush breaker.

TECHNICAL BACKGROUND OF THE INVENTION AND PROBLEMS 3 M1 FIG. 1 Accordingly, the configuration of a conventional circuit breaker will be described. ~ The breaker housed in the gas-insulated switchboard 1 is manufactured separately into a breaker section 2 and a mechanism section 3, each of which is
It is often constructed by fixing it to the frame 4.

And, the shutoff part 2 is SF6 gas (hereinafter referred to as gas)
The chamber 5 #ζ chamber 3 filled with high-pressure gas, such as, is placed in the atmosphere. This is due to the following reasons. The breaker 2 can be placed in gas to improve the dielectric strength between phases, poles, and ground, thereby reducing the insulation distance.

As a result, the dimensions of the gas insulating cubicle 1 are made smaller. In addition, the breaker is i o in the case of a vacuum breaker, o oo recovery ball in the case of a gas breaker, and 3 in the case of a gas breaker.
Contact replacement is not required until ρOO~5,000 times. This means that no inspection is required in actual use, and as a result, there is no need to vent gas.

Compared to the shutoff section, the mechanism section 3 often requires maintenance and inspection, such as tightening, greasing, and lubrication after the start of use. This is mostly due to the age, regardless of the number of openings and closings. Therefore, if the mechanism section is placed in a gas, it will be necessary to vent the gas every time maintenance and inspection is performed, so it is common for the mechanism section 3 to be placed in the atmosphere, which is an advantage of separating it from the breaker section 2. There is.

In the circuit breaker configured as described above, the mechanism section 3
When inspecting the mechanical part 3, since the mechanical part 3 is fixed to the frame 4, it is necessary to provide an opening around the mechanical part 3. If the dimensions of the gas insulating cubicle 1 are large and there is plenty of room, the above measures are sufficient, but as the dimensions of the cubicle become smaller, it becomes difficult to do so. Therefore, it has become necessary to pull out the mechanism section 3 outside and inspect it.

[Purpose of the invention]

The present invention takes the above-mentioned drawbacks into consideration and aims to provide a mechanical section that is easy to inspect.

[Summary of the invention]

The present invention divides a breaker used in a gas insulated cubicle into a breaker part and a mechanism part, and attaches a moving device that can move the mechanism part, so that only the mechanism part can be pulled out of the cubicle of the gas insulated cubicle. To provide a circuit breaker characterized by the following.

[Embodiments of the invention]

Embodiments of the present invention shown in FIGS. 2 and 3 will be described below.

FIG. 2 is a partially sectional view of the gas insulated cubicle of this embodiment, and FIG. 3 is a front view of FIG. 2.

The structure of the breaker is the same as that of the conventional type shown in FIG. 1, so its explanation will be omitted. The mechanism section 21 is housed within a mechanism frame 22. A frame 24 is attached to the upper part of the mechanism frame 22 for joining the frame 4 of the gas insulated cubicle 1 to the frame n that has been removed.

The frame 23 and the frame (2) are connected by a port 25 and a nut 26 after the mechanism part 1'z gas insulated cubicle 11 is housed therein.

Wheels 27 used when moving the mechanism section 21 are attached to the mechanism frame I, /1 frame 22.

An operating shaft extending from the breaker section 2 and two operating links extending from the mechanism section are connected by a pin 30. This bottle 30 can be easily inserted and removed.

In addition, the operating shaft part and gas chamber 5 protruding from the shutoff part 2 are
It is sealed with a bellows, O-ring, etc.

In the circuit breaker configured as above, the mechanism part Z1
is attached to the frame 23 of the gas insulated cubicle with wheels 27 attached.

Daily visual inspections can be carried out with the installation in place, but when performing periodic inspections etc., by removing the connecting bottle 30 and the connecting bolts 25, only the mechanism part 21 can be easily insulated. It can be drawn out of the cubicle 1.

This makes it possible to inspect the mechanical parts outside the gas-insulated cubicle, which was previously difficult to do. Furthermore, by making the mechanism part movable, assembly productivity was also improved.

In this embodiment, the mechanism is fixed at the upper part of the mechanism frame, but the same effect can be obtained even if it is fixed at the lower part or the side.

[Effects of the Invention] The present invention divides the 714 part of the circuit breaker and makes it movable. This makes it possible to inspect the mechanical part by pulling it out to the outside of the gas insulated cue and the cue, which saves time and inspection time. It became possible to shorten the time.

[Brief explanation of drawings]

FIG. 1 is a schematic partial sectional view of a conventional gas insulated cubicle, FIG. 2 is a schematic partial sectional view of a gas insulated cubicle showing an embodiment of the present invention, and FIG. 3 is a front view of FIG. 2. ■... Gas insulated cubicle 2... Breaking part 21... Mechanism part 22... Mechanism frame 27... Wheel (7317)] Jtsu\ Patent attorney Nori Suji Chika
(1 other person) Figure 1 Figure 2

Claims (1)

[Claims] A breaker housed in a gas-free tube is divided into a breaker section and a mechanism section, a moving device is attached to the mechanism section to make it movable, and only the mechanism section is moved out of the cubicle. A circuit breaker characterized by being able to be pulled out.