JPS59185106A - Bus conductor of 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 The present invention relates to a gas insulated switchgear stop, and particularly to an improvement of a busbar conductor that connects phases in a busbar division unit.

FIG. 1 shows a conventional bus conductor that connects each phase of a unit in a cass insulation device. In the figure, (1
) is a busbar tank, (2), (2) are insulating spacers sandwiched between the respective connections between this tank and a gas-insulated switchgear unit (not shown), and (3), (3) are each of these insulators. Support conductors fixed to the spacers (2) and (2), (4) and (4) are terminal conductors fixed perpendicularly to the vicinity of the tips of the support conductors, and (5) and ('5) are the above-mentioned terminal conductors. Shields (6) and (6) are attached to the shields (5) surrounding the terminal conductors (4) and (4) and spaced apart from each other by a predetermined distance on opposite sides of the supporting conductors (3) and (3), respectively.
, (5), and (7) each of the above-mentioned terminal conductors (4) at both ends.

Tulip contacts connected to each of (4) (
7a) and (7a) are provided to electrically connect the respective terminal conductors (4) and (4).

The LiJ wire conductor (7) of the conventional gas switchgear constructed as described above is provided on each shield (5), (5) when connecting between each terminal conductor (4), (4). Se・
The center screws (8) and (13) restrict their axial movement and prevent them from falling off from the respective terminal conductors (4) and (4).
) can be removed from its shield (5) and by sliding the bus conductor (7).

However, the bus conductor (7) is its terminal conductor (4).
Even if it is possible to attach and detach the bus conductor (7) from the bus tank (1), it is difficult to put it in and out of the bus tank (7) near its attachment point due to the size of the bus conductor (7).
) When taking it out, the bus conductor (7) must be moved in parallel within the bus tank up to the bus tank of the final unit, which takes a lot of time.

In view of the above points, the present invention provides a busbar conductor that connects the phases of a busbar division unit, connecting conductors on both sides fixed to support conductors of each phase, and a flexible relay busbar that can be connected to the connecting conductors on both sides. In addition, a hand hole is set in the bus tank at a position near the relay bus conductor, and the relay bus conductor can be inserted and removed through the hand hole, thereby solving the above-mentioned drawbacks of the conventional method. The present invention provides a bus conductor for gas insulated switchgear that eliminates the problem.

Hereinafter, the present invention will be described with reference to the embodiments shown in FIGS. 2 and 3, in which the same parts as those of the conventional one are denoted by the same reference numerals. In the figure, (8) and (8) are insulating spacers (2),
Support conductors (3) fixed to (2), strike conductors (9), (9
) are cross-sectional shields provided at the large diameter portions of the opposing extension ends of these two-side connecting conductors (8), (8), respectively;
10), (10) are these respective shields (9), (!3)
Tulip contacts are attached to the small diameter portions of the ends of each of the connecting conductors (8), (8) on the inside of the conductor, and are shielded and protected by the shield.

(11) is a cylindrical finger contact with a bottom, the open end of the cylindrical part (lla) is formed into a thin walled part (llb), and a claw (llc) is provided at the tip to make the whole elastic. It is configured to hold up. In addition, a hole (lid) for accommodating the bottle (12) is bored in the peripheral wall of the cylindrical part (lla), and on the outside of the bottom of the hole (lid),
A protruding part (lie) having a smaller diameter than the cylindrical part (lla) is formed and connected to the tulip contact (10) on the right side. (13) is a connection conductor with a screw hole (13a) formed on one end, and the inside of this screw is inserted into the cylindrical part (lla) of the finger contact (11), and the other end is connected to the left tulip contact. (10)
is connected to. These finger contacts) (11
) and the connecting conductor (13) to connect the relay bus conductor (20)
is configured. (14) is this relay bus conductor (20
) a hand hole provided in the tank (1) in close proximity to the tank (1);
(15) is a blindside to this.

The relay bus conductor (20) of the gas insulated switchgear of this embodiment configured as described above has a structure in which the connecting conductor (13) slides inside the cylindrical part (lla) of the finger contact (11). Therefore, at the time of connection, as shown in Figure 3, the connecting conductor (13) is fixed with a bottle (12), and the axial movement of the bus conductor (20) is restricted, and both tulip contacts (10) are connected. , (10), and when it leaves, the third
As shown in Figure a, remove the connection conductor (12) and connect the connection conductor (
13) to reduce the -axial length of the bus conductor (20), and both tulip contactors) (1
The relay busbar conductor (20) can be detached from 0) and (10) and easily taken out of the busbar tank (1) through the hand hole (14).

It is also clear that the relay bus conductor (20) can be attached and connected via this /\endhole (14).

In the above embodiment, the present invention was applied to a phase-separated bus, but the same effect can be obtained even if the present invention is applied to a three-phase bus.

As described above, according to the present invention, by dividing the bus conductor into three parts and configuring the central relay bus conductor to be expandable and retractable, it is possible to attach and detach the relay bus conductor from the hand hole of the bus tank, thereby making it possible to unite the unit. It is possible to obtain a bus conductor for a gas insulated switchgear that facilitates the separation of the gas insulated switchgear.

[Brief explanation of the drawing]

Fig. 1 is a diagram of a conventional busbar structure, Fig. 2 is a diagram of a busbar structure showing an embodiment of the present invention, and Figs. 3a and b are enlarged sectional views showing the main parts of Fig. 2 in different aspects. It is. (1)... Bus bar tank, (3)... Support conductor, (4
)...terminal conductor, (7), (20)...bus bar conductor, (8)...connecting conductor, (11) finger contact (13)...connecting conductor. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. Agent Shin Kuzuno - Figure 1

Claims (1)

[Claims] The bus conductor that connects the phases of the bus bar division unit is divided into rigid conductors on both sides fixed to supporting conductors of each phase, and elastic relay bus conductors connectable to the connecting conductors on both sides, and A busbar conductor for a gas insulated switchgear, characterized in that a handhole is provided in the busbar tank at a position near the relay busbar conductor, and the relay busbar conductor can be inserted and removed through the handhole, and insertion and removal operations can be performed.