JPH076655Y2 - Cutout bypass device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a bypass cable connector to be connected to a high-voltage distribution cutout switch.

(B) Conventional Technology Conventionally, work such as replacement of the high-voltage distribution line has normally been performed as a power outage.

However, due to the recent demands from consumers in the advanced information age, such as "blackouts are inconvenient even if they are infrequent," and "improvement in the quality of electric power", there are also momentary blackouts. I'm no longer allowed.

In addition, even when power outage work can be performed, uninterruptible work has come to be performed from the standpoint of requiring labor such as having to install consent of consumers who will be out of power one by one in advance. .

Based on such a request, in the work of replacing the high-voltage distribution line, etc., the pole transformers etc. that are supplying the customers existing in the work area of the replacement work should be temporarily connected to the neighboring areas other than the work power failure section. It has been strongly desired to use a bypass cable for a high-voltage distribution line or the like and perform parallel switching without power failure so that work such as switching can be performed without instantaneous power failure.

(C) Problems to be Solved by the Invention The present invention is based on the above-mentioned request, and in the replacement work of a high-voltage distribution line, a transformer which is supplied with electric power to a customer existing in a work section is provided. When performing uninterruptible switching by using a bypass cable for adjacent high-voltage distribution lines during construction, remove the coating of the high-voltage lead wire from the cutout switch to the transformer, and replace the bypass cable as before. Connecting is dangerous if it is done by hot line, and the connecting work is complicated and difficult.

In the present invention, by using the wire hole in the transformer-side terminal of the cutout switch to which the pole transformer is connected, remote control with an insulation operating rod allows easy and safe bypassing in a live state. The present invention seeks to provide a bypass cable connector for connecting cables in parallel.

(D) Means for Solving the Problem As shown in FIG. 1, FIG. 2, and FIG. 3, the cutout connection is made on the upper back surface of the fixed arm 7 by the rotation of the rotating portion 2 in the operation rod connecting portion 1. A gear portion 4 for screwing the terminal 3 into and out of the screw portion 5 on the upper portion of the fixed arm 7 is provided, the bypass cable 21 is connected to the screw portion 5, and a cutout wire hole fitting projection 6 is provided on the front surface thereof. The movable arm connecting part 9 of the fixed arm 7 is provided with a movable arm connecting part 9 and a sliding part 8 for moving the sliding body 10 up and down by the rotation of the rotating part 12 in the operating rod connecting part 11 at the lower part of the 7. A movable arm 17 having a fixed arm connecting portion 13 and a sliding portion 14 on the lower side, and a cutout electric wire hole fitting protrusion 16 and a notched electric wire hole 15 on the upper portion.
Is a cutout bypass device having a structure in which the spring is stored so as to open outward by a spring, and the fixed arm connecting portion 13 connects the open and close.

In the drawing, the structure of the gear portion 4 is such that the rotation of the rotating portion 2 is caused to rotate the cutout connecting terminal 3 by the bevel gear 18, and the cutout connecting terminal 3 is screwed with the screw portion 5. As shown in FIG. 1 and FIG. 5, it rotates in and out from the threaded portion 5 of the fixed arm 7.

In this case, in the drawing, the rear part of the cutout connection terminal 3 is
It is fixed to the umbrella-shaped gear 18 and is rotatably coupled to the gear portion 4 so that the gear portion 4 moves back and forth together with the cutout connection terminal 3 as the cutout connection terminal 3 rotates. The fitting portion between the shaped gear 18 and the cutout connecting terminal 3 has a slot fitting structure, and the fitting portion between the umbrella-shaped gear 18 and the cutout connecting terminal 3 is freely slidable in the axial direction of the cutout connecting terminal 3. If the structure is such that the rotation of the umbrella-shaped gear 18 is transmitted to the cutout connection terminal 3 by the engagement of the slots, the gear portion 4 is fixed to the fixed arm 7 and only the cutout connection terminal 3 moves. It can be moved back and forth to have a compact structure.

Further, instead of the umbrella-shaped gear 18, a transmission structure using a worm gear may be used.

Also, the cutout connection terminal 3 is shown in FIG. 1, FIG. 4, and FIG.
As shown in the figure, after the cutout bypass device is held by the cutout switch 19, the rotary unit 2 is rotated to project the cutout connection terminal 3 and the high voltage lead of the cutout switch 19 in the electric wire hole 20. Connect the cable to the wire connection terminal and connect the bypass cable 21 to the cutout switch 19
To be connected to.

Next, the cutout wire hole fitting protrusion 6 on the front surface of the screw portion 5
As shown in FIG. 4, the cutout bypass 19 of the present invention is fitted into the electric wire holes 20 on both sides of the cutout switch 19 together with the cutout electric wire hole fitting projections 16 of the movable arm 17 from both sides. Hold the tool on the cutout switch 19.

In addition, the sliding portion 8 below the fixed arm 7 moves the triangular sliding body 10 up and down by the rotation of the rotating portion 12, and the fixed arm connecting portion 13
By pushing the sliding portion 14 below the movable arm 17 supported by the movable arm coupling portion 9 of the fixed arm 7 outward, the upper portion of the movable arm 17 is closed inward, and the cutout wire hole fitting protrusion 16 To the inside of the fixed arm 7 between the cutout wire hole fitting protrusion 6 and the wire holes on both sides of the cutout switch 19.
20 is sandwiched so that the cutout bypass device is held by the cutout switch 19.

The movable arm 17 is a joint portion of the fixed arm joint portion 13 and the movable arm joint portion 9, and is stored with a spring so as to always open outward with respect to the fixed arm 7 (a spring is not shown). ).

The cutout wire hole 15 on the upper part of the movable arm 17 shown in FIG. 3 is already connected to the cutout switch 19 when the cutout bypass device is held by the cutout switch 19, as shown in FIG. The high-voltage lead wire 22 is a notch for avoiding attachment.

Next, as shown in FIG. 4, the operation rod connecting portions 1 and 11 are inserted into the tip portion of the insulating operation rod 23 and locked by the lock portion 25, and the box at the tip of the rotary rod 24 in the insulation operation rod 23 is inserted. Rotating part 2
・ It has a structure that fits into 12 and rotates it.

(E) Action When re-installing the high-voltage distribution line, if there is a pole transformer supplying the load within the re-installing section, then the No. 4
As shown in the figure, the cutout bypass device connected to the end of the bypass cable 21 is connected to the operation rod connecting portion 11 thereof.
Insert the tip of the insulation operating rod 23 into the, and fit the box portion of the tip of the rotating rod 24 in the insulating operating rod into the rotating portion 12,
26 is locked on the lock portion 25.

Next, the rotary grip portion (not shown in the drawing) of the rotary rod 24 near the insulating operation rod 23 is rotated to move the sliding member as shown in FIG.
By moving 10 downward, the movable arm 17 is opened outward by the elasticity of the spring provided at the joint between the movable arm joint 9 and the fixed arm joint 13.

With the movable arm 17 opened outward, a hand gripping portion (not shown in the drawing) of the insulating operation rod 23 is gripped, and as shown in FIG. , Cutout wire hole fitting (cutout wire hole part is not shown) to the wire hole 20 (backside wire hole not shown in the drawing) to which the transformer side high voltage lead wire 22 is connected Apply the projection 6 and rotate the rotary grip of the rotary rod 24 near the insulated operating rod 23 to close the movable arm 17 inward as shown in FIG. 2 and to the electric wire holes 20 on both sides of the cutout switch. , Cutout wire hole fitting projections 6 and 16 are fitted and sandwiched,
Hold the cutout bypass device on the cutout switch 19.

After holding, pull out the insulated operating rod 23 from the operating rod connecting portion 11,
The operating rod connecting portion 1 of the gear portion 6 is connected to the insulating operating rod 23 in the same manner as above.
Insert the tip end of the rotary rod 24 to rotate the rotary grip 2 to rotate the rotary unit 2 so that the cutout connection terminal 3 is projected into the electric wire hole 20 as shown in FIG. The high-voltage lead wire 22 connected to the transformer by making contact with the connection terminal of the high-voltage lead wire 22 in the cut-out switch 19 shown in FIG. Bypass cable to which the out bypass device is connected
21 (the other end is connected to the high voltage distribution line in the non-construction section)
And are connected in parallel.

After that, if the cut-out switch 19 is opened, the transformer connected to this cut-out switch 19 will not receive an instantaneous power failure, and will receive power from the high-voltage distribution line in the non-construction section and load this transformer. Electricity can be supplied to the customers who are being used.

Next, after the work is completed, the cut-out switch 19 is closed, and the pull-down line from the high-voltage distribution line after the work and the bypass cable power supply are arranged in parallel.
23. First, by rotating the rotating part 2 and retracting the cutout connection terminal 3 to the position shown in FIG. 2, the parallel with the bypass cable power supply is released, and the transformer is finished its work. Power will be received from the high voltage distribution line.

Next, when the rotating portion 12 is rotated by the insulating operation rod 23 and the movable arm 17 is opened outward as shown in FIG. 1, the cutout bypass device is detached from the cutout switch 19 and the transformer concerned. The device receives power from the original high-voltage distribution line without instantaneous power failure, and returns to the state of supplying power to customers.

(F) Effect of the Invention As described above, the cutout bypass device of the present invention is
As shown in FIG. 4, the bypass cable 21 is attached to the end portion in advance, and the tip of the insulating operation rod 23 is inserted into the operation rod connection portion 11,
The wire hole of the cutout switch 19 attached to the arm on the pole by grasping and lifting the insulated operating rod 23.
Put the cutout wire hole fitting protrusion 6 on 20, and rotate and set the rotating grip of the rotating rod 24 at hand, then insert the insulating operating rod 23 back into the operating rod connecting portion 1 and rotate it. When the part 2 is rotated, the cutout connection terminal 3 is connected to the high voltage lead wire connection terminal, and the cutout bypass device is connected to the cutout switch 19 from the position separated from the charging part by the insulating operation rod 23. It can be installed and removed, and the bypass cable can be used without a momentary power failure in a live state.
21 can be connected in parallel to cutout switch 19 or cut off,
Safe and easy to implement.

Further, even when the high-voltage lead wire 22 is inserted and connected to the electric wire hole 20 of the cutout switch 19, the cutout electric wire hole 15 is provided on the upper part of the movable arm 17, and the cutout electric wire hole fitting protrusion is provided. As for 16 as well, the upper half is cut off, so
As shown in the figure, without being disturbed by the high voltage lead wire 22,
This cutout bypass device has a cutout switch 19
Can be installed easily and securely,
Since the cutout switch 19 as well as the cutout electric wire hole fitting projection 6 can be fitted and clamped in the electric wire holes 20 on both sides thereof, the mounting is reliable and strong, and the mounting never comes off during use.

Also, the wire hole on the opposite side where the high voltage lead wire 22 is inserted
Even if a rubber stopper is provided at 20, it is not necessary to remove it, and as shown in FIG. 5, the cutout connection terminal 3 is projected by the rotation of the rotating portion 2 and the central film portion of the rubber stopper is removed. By breaking through and abuttingly connecting to the high-voltage lead wire connecting terminal of the cutout switch, a good electrical connection can be made.

The cutout wire hole fitting protrusion 6 is made of hard rubber or the like that fits tightly to the wire hole 20 of the cutout switch 19 to some extent, and is connected to the wire hole 20 of the cutout switch 19 of the cutout connection terminal 3. In this way, the insertion position is guided, the contact with the high-voltage lead wire connection terminal is facilitated, the connection is ensured, and a good connection is obtained.

As described above, the cutout bypass device of the present invention is used as a bypass cable connecting terminal in the high voltage lead wire connecting terminal in the wire hole 20 of the cutout switch in a live state, and the insulation coating of the high voltage lead wire is peeled off. It is a bypass cable connector to a cut-out switch that allows you to connect or disconnect the bypass cable in parallel easily and safely by remote control with an insulated operating rod without changing the connection. In the future, it will exert a great effect on uninterruptible work such as high-voltage distribution lines and distribution equipment, which are required more and more in the future.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1, 2 and 5 are front views for explaining an embodiment of the present invention, FIG. 3 is a perspective view of the same, and FIG. 4 is an attachment to a cutout switch of the present invention. Explanatory perspective view. 1, 11 are operation rod connecting portions, 2 and 12 are rotating portions, 3 is a cutout connecting terminal, 4 is a gear portion, 5 is a screw portion, 6 and 16 are cutout wire hole fitting protrusions, 7 is a fixed arm, 8 is a sliding part, 9
Is a movable arm coupling part, 10 is a sliding body, 13 is a fixed arm coupling part, 14 is a sliding part, 15 is a notched wire hole, 17 is a movable arm, 18 is an umbrella gear,
19 is a cutout switch, 20 is an electric wire hole, 21 is a bypass cable, 22 is a high-voltage lead wire, 23 is an insulating operation rod, 24 is a rotating rod, 25 is a lock part, and 26 is a protrusion.

Claims (1)

[Scope of utility model registration request] 1. A gear portion 4 is provided on the rear surface of the upper portion of the fixed arm 7 so that the cutout connection terminal 3 can be screwed in and out from the screw portion 5 on the upper portion of the fixed arm 7 by the rotation of the rotating portion 2 in the operation rod connecting portion 1. A bypass cable 21 is connected to the screw portion 5, a cutout wire hole fitting protrusion 6 is provided on the front surface thereof, and a movable arm coupling portion 9 and a rotating portion 12 in the operation rod connecting portion 11 are provided below the fixed arm 7. The movable arm connecting part 9 of the fixed arm 7 provided with the sliding part 8 for moving the sliding body 10 up and down by the rotation has the fixed arm connecting part 13 and the sliding part 14 at the lower part, and the cutout electric wire hole at the upper part. Movable arm 17 having a fitting protrusion 16 and a cutout wire hole 15
Is a cutout bypass device having a structure in which the spring is stored to open outward and is fixedly connected by a fixed arm connecting portion 13.