JPH0323574Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of a socket device for charging equipment.

Prior Art and Problems When connecting a gas-insulated substation and a gas-insulated switchyard with a cable, normally, as shown in Figure 6, a gas intermediate termination is installed at each cable end at the substation and switchyard. I am using it. A power charging socket S is attached to the wall of the equipment case so as to enable electrical testing of the equipment side cable or equipment. This energizing socket has a bushing attached to the wall of the equipment case, with a cable end receiving hole on the rear end side and a slidable conductor rod e on the tip end, and the energizing socket is attached to the wall of the equipment case as shown in Figure 6. When the terminal E of the moving cable is attached to the cable terminal receiving hole of the bushing, the conductor rod e is pushed by the tip of the moving cable terminal and comes into contact with the conductor h at the end of the gas cable, and the cable is unloaded. Electrical testing becomes possible. After the energization test, the movable cable terminal is removed from the bushing, the conductor rod is moved back with a tool to isolate the conductor rod from the end conductor of the gas cable, and the bushing is closed with a lid.

However, since the gas pressure inside the equipment case is high, it is necessary to apply a considerably strong mounting pressure to the packing that ensures the airtightness of the sliding portion of the conductor rod, and it is not easy to move the conductor rod backward.

Purpose of the invention The purpose of the invention is to provide a power charging socket device for equipment in which the above-mentioned conductor rod can be easily moved backward by attaching a spring, and in which a moving cable terminal can be easily attached. It is in.

Structure of the invention The socket device for power charging of equipment according to the present invention is a power charging socket device in which a bushing having a cable end receiving hole at the rear end side and a conductor bar slidably provided at the front end side is attached to the wall of the equipment case. This socket is characterized in that it is provided with a spring that urges the conductor rod in the backward direction, and a locking means that resists the spring force and fixes the conductor rod in the forward position.

Description of examples The present invention will be explained below with reference to the drawings.

FIG. 1 is an explanatory diagram showing a power charging socket device for equipment according to the present invention.

In FIG. 1, 1 is the equipment case wall. 2
is a bushing (for example, made of epoxy resin), covered with a metal cover 3, and an end fitting 31 is provided at the rear end of the cover. The front end 21 of the bushing 2 is housed in the case 1, and the bushing 2 is fixed to the case 1 by fastening the rear end metal fitting 31 and the case 1 with bolts 4. 51 and 52 are packings, and 53 is a conductive paint layer. A stress cone is inserted into the tip of the bushing, but is not shown. 6 is a hollow conductor for shielding embedded in the bushing 2, and the rear end portion 61 has a large diameter. 7 is a cable terminal receiving hole provided at the rear end of the bushing. A conductor rod 8 is slidably inserted into the hollow conductor 6 through packings 9, . . . . Reference numeral 81 denotes protrusions provided on the conductor bar 8, which are provided at two locations as shown in FIG. Reference numeral 10 denotes a lock fitting, which is provided with grooves 101, 101 for allowing the protrusions 81, 81 to escape, as shown in FIG. This lock fitting 1
0 is fixed in the hollow conductor 6 by screwing. 1
A compression spring 1 is installed between the tip of the hollow conductor 6 and a spring stopper 83 of the conductor rod 8.

In FIG. 1, the protrusion 81 of the conductor rod 8 is locked into the lock fitting 10 against the compressive force of the spring 11. If this lock is released as shown in FIG. 4, the conductor rod 8 can be easily retreated by the compressive reaction force of the spring 11 even if the mounting pressure of the packings 9, . In this retracted state, the bushing is closed with the lid 120.

On the other hand, when installing the mobile cable terminal, the fifth
As shown in the figure, the protrusion 81 of the conductor rod 8 is connected to the spring 11.
In this state, attach the moving cable terminal to the cable terminal receiving hole 7 of the bushing 2, and connect the tip contact 12 of the terminal to the conductor bar 8. (In FIG. 5, E is a moving cable terminal, 13 is a stress cone, 14 is a stress cone pressurizing tool, and 15 is a jacket connection pipe). in this case,
Since the compressive force of the spring 11 does not act as a reaction force against the insertion of the cable terminal, the movable cable terminal can be easily attached.

Effects of the invention The socket device for energizing equipment according to the invention has the configuration as described above, and since the conductor rod can be retracted by the bias of the spring, even if the sliding resistance of the conductor rod is strong, the spring force can be increased. By doing so, the conductor rod can be easily retreated. Furthermore, since the movable cable terminal can be attached with the conductor locked against the spring force, this attachment can be easily performed.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the socket device according to the present invention, Figs. 2 and 3 are explanatory diagrams showing the conductor rod and lock fitting used in the present invention, respectively, and Fig. 4 is an explanatory diagram showing the lid of the socket device of the present invention. condition,
FIG. 5 is an explanatory view showing how a moving cable terminal is attached to the socket device of the present invention, and FIG. 6 is an explanatory view showing a known gas insulated device. In the figure, 1 is the case wall, 2 is the bushing,
8 is a conductor rod, 81 is a projection, 10 is a lock fitting, 1
1 is a spring.

Claims (1)

[Scope of utility model registration request] In a socket for charging, which has a cable end receiving hole on the rear end side and a bushing with a conductor rod slidably provided on the front end side, which is attached to the wall of the equipment case, a spring biases the conductor rod in the backward direction. A socket device for energizing equipment, characterized in that it is provided with a locking means for fixing the conductor rod in the forward position against the spring force.