JPS6087606A - Gas insulated switching device - 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 [Field of Application of the Invention] The present invention relates to the arrangement of a gas-free M switchgear equipped with a grounding switch, a disconnector, a four-way transformer, and the like.

[Background of the invention]

1 and 2 are circuits to which the present invention is applied. Generally, gas insulated switching r#c [is formed in substation &
The circuit changes in various ways such as its form and specifications.

In particular, the position of the potential transformer provided on the line side is arranged in correspondence with the line side disconnector. FIG. 1 shows a circuit in which a voltage transformer 8 is provided closer to the line than a line-side disconnector 7. In FIG.

Further, FIG. 2 shows a circuit in which the voltage transformer 8 is provided closer to the breaker than the line-side disconnector 7.

The conventional arrangement for such circuits is to arrange devices according to the circuit, that is, to arrange devices arranged in the circuit out of order.

Figure 31. FIG. 4 shows a conventional arrangement corresponding to the circuits of FIGS. 1 and 2, respectively. In FIG. 3, on the line side starting from the breaker 5, a NI transformer 4, a line-side earthing switch 6, a line disconnector 7, a d1 transformer 8, and a line earthing switch 9 are arranged. . Further, in FIG. 4, the order of the potential transformer 8 and the line-side disconnector 7 is reversed from that in FIG. 3, similar to the difference between the circuit of FIG. 1 and the circuit of FIG. 2.

In this structure, the switchgear is arranged in a different manner depending on the change in the circuit. For gas-insulated switchgear, standardization technology that can respond to changes in circuits with the same configuration
Measuring is the first mourning.

[Object of the Invention J The object of the invention is to #! By arranging the disconnector and the potential transformer in the right angle direction and on the same straight line, and further arranging the grounding side breakers at almost the same position at both ends of the above composite unit, ) To provide a gas insulated switchgear that can cope with changes in the path using the same container without changing the arrangement.

[Embodiments of the invention]

An embodiment of the present invention will be described below.

FIG. 5 is an internal sectional view corresponding to the electric circuit in FIG.
In particular, it shows a unit 1 including a disconnector 7 on the line side of the circuit breaker 5, a voltage transformer 8, and a line grounding switch 9. The instrument transformer 8 and the line-side disconnector 7t are arranged in a direction substantially perpendicular to the running direction of the bus conductor 10, and also on the same straight line.

6. 1 is an internal sectional view corresponding to the 'electric circuit in Figure 2, especially showing the parts corresponding to +IfC in Figure 5. The circuit shown in Figure 2 can be satisfied by simply reversing the installation of the 1M4 mother body 10 from the one shown in Figure 5 for all instrument transformers Bvc without changing the arrangement of the earthing switch 9. .

The arrangement of the entire inscribed structure shown above (/J is shown in Fig. 7) is at an angle #!iI!iik with respect to the running direction of the bus bar, and on the same straight line as disconnector 7. Place the transformer 8, and center it around this ?J@-Unin If.

A line side grounding switch 6 and a line grounding switch 9 are arranged at both ends so as to have the same dimensions. With this structure, the circuits shown in Figures 1 and 2 can be changed by simply changing the internal conductors without changing the external arrangement.
It can be constructed using the same metal.

Further, in this configuration, the same effect can be obtained by rotating the above-mentioned container by 180 degrees. In addition, in the figure, 1 is a main busbar, and 2 is a disconnector for the main busbar.

〔Effect of the invention〕

According to the present invention, in the arrangement configuration of the cass insulation opening device, 1
Even if the circuit changes, the external arrangement t'' can be unchanged and the same container can be used.

[Brief explanation of the drawing]

11th Joy 1. Figure 2 is a circuit diagram to which the present invention applies;
The figure is a 1° front view of the conventional example of No. 11#I, and Fig. 4 is the 2nd
The conventional example shown in FIG. 1F13 and FIG.
FIG. 6 is a sectional view showing one embodiment of the present invention and corresponds to the circuit shown in FIG. 2, and FIG. 7 is a front view of another embodiment of the present invention. 7... line disconnector, 8... instrument transformer, 9...
... U1h + Ed Mine 2 Figure 3 Figure 5 Mouth 000000yo' 6 Kuni 7 Continuation of page 1 [Phase] Inventor Miwa 1) Satoshi 1 Kokubun-cho, Hitachi City
No. 1-1 in the Chome Hall Hitachi, Ltd. Kokubuko Co., Ltd.

Claims (1)

[Claims] 1. In a gas-insulated switchgear in which each part of the switchgear, such as a grounding switch, disconnector, and voltage transformer, is housed in a grounding container completely filled with an insulating medium, the direction perpendicular to the running direction of the busbar is A gas insulated switchgear characterized in that the disconnector and the potential transformer are arranged on the same straight line, and the grounding switch is arranged at both ends of the composite unit.