JPH0831272A - Operation device of pole breaker for distribution line - Google Patents

Abstract

PURPOSE:To realize high speed closing, high speed breaking, and no-volt delay release by arranging a closing coil, a closing latch shaft, a trip latch shaft, a trip latch lever, and extending one end of the trip latch lever to a position to strike a closing coil plunger. CONSTITUTION:In an operation device of a pole breaker for a distribution line comprising a closing coil 1 which has a closing coil plunger 2 and instantly excited on closing, a closing latch shaft which latches a closing preparation state connected to the closing coil plunger 2 through a closing latch lever 6 and releases latch by exciting of the closing coil 1 to make a closing state, a trip coil 7 which has a closing coil plunger 8 and becomes a no-exciting state on releasing, a closing latch shaft 10 which latches a closing state, and a latch lever 12 which is supported on the closing latch shaft 10, whose one end is energized by a closing spring and the other end is connected to the coil plunger 8, one end of the closing latch lever 12 is extended to a position to strike the closing coil plunger 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
That is, the present invention relates to an operating device for a pole breaker for a distribution line, which can perform a delayed release operation without a voltage.

[0002]

2. Description of the Related Art A conventional pole coil breaker operating device for a distribution line, which uses a normally-excited closing coil plunger, excites the closing coil and attracts the closing coil plunger to make a closing operation. When the operation is performed and the closing operation is performed, the closing coil is de-excited and the closing coil plunger is released by the spring force stored at the time of closing to perform the closing operation. The shut-off operation at the time of no power supply of the operating device, that is, the no-voltage delayed release operation is realized by eliminating the power supply voltage of the closing coil and deenergizing the closing coil.

On the other hand, since the operating device is required to disconnect the faulty section of the distribution line in a short time, it is necessary to realize high-speed closing and high-speed disconnection operations. However, in the case of the operating device, since the closing coil is large during the closing operation, the current of the closing coil rises slowly, and since the closing coil plunger is large, the inertial force is large and the operation is slow, and the closing operation is performed during the closing operation. Since the coil plunger is large,
The operation becomes slow.

Therefore, an operating device for a pole breaker for distribution lines has been developed which realizes high-speed closing and high-speed breaking operations by accumulating spring force by a motor. The apparatus will be described with reference to FIGS. 2 and 3. In these figures, 1 is an instantaneous excitation closing coil that is momentarily excited at the time of closing, and 2 is a closing coil 1.
Closing coil plunger, 3 is closing coil plunger 2
The closing coil support rod 4 connected to the closing coil 4 is a closing latch shaft having a semicircular cutout 5 at the tip, and 6 is a closing latch lever having one end connected to the closing coil support rod 3 and the other end. Is fixed to the closing latch shaft 4, and the closing coil 1
The closing coil plunger 2 is attracted by the excitation, and the closing latch shaft 4 is rotated clockwise via the closing latch lever 6.

Reference numeral 7 is a normally excited trip coil which is in a non-excited state when cut off, 8 is a trip coil plunger of the trip coil 7, 9 is a trip coil support rod connected to the trip coil plunger 8, and 10 is a trip coil support rod. Semicircular notch 11 at the tip
A tripping latch shaft having 12 and a tripping latch shaft 10 supported by the tripping latch shaft 10, one end of which is connected to the trip coil support rod 9, and 13 which is the other end of the tripping latch lever 12 in the downward direction. The tripping spring is a biasing tripping spring. When the tripping coil 7 is not energized when the tripping coil is turned off, the tripping coil plunger 8 is moved upward by the latch spring of the tripping coil support rod 9 and the releasing force of the tripping spring 13. The trip latch shaft 10 rotates counterclockwise.

Reference numeral 14 is a drive shaft which is interlocked with the energy storage motor, and 15
Is a drive lever whose central part is fixed to the drive shaft 14, 16 is a closing rotary shaft located on the upper right side of the driving shaft 14, and 17 is a closing lock lever whose central part is fixed to the closing rotary shaft 16. And one end is located in the notch 5 of the closing latch shaft 4. Reference numeral 18 denotes a connecting body that connects the other end of the closing lock lever 17 and one end of the drive lever 15.

Reference numeral 19 denotes a breaking rotary shaft located on the upper left side of the drive shaft 14, and reference numeral 20 denotes a breaking lock lever having a central portion fixed to the breaking rotary shaft 19, one end of which is the trip latch shaft 1.
It is located in the notch 11 of 0. Reference numeral 21 denotes an operating device main shaft located below the drive shaft 14, which is connected to the breaking portion and opens and closes the main circuit. Reference numeral 22 is a spindle lever whose base is fixed to the spindle 21.

Reference numeral 23 is a first connecting rod connected to the other end of the shutoff locking lever 20, 24 is a second connecting rod connecting the other end of the first connecting rod 23 and the tip of the spindle lever 22, 25 Is a third connecting rod whose one end is connected to the connecting portion 26 of the first and second connecting rods 23 and 24, and the other end is connected to the other end of the drive lever 15. One end of 27 is a connecting rod 23, 24, 2
5 is an operation spring locked to the connecting portion 26 of FIG.

Next, the operation will be described. FIG. 3A shows a released state in which the operating spring 27 is released, and one end of the closing lever 17 for closing is positioned in the cutout portion 5 of the closing latch shaft 4,
One end of the shut-off locking lever 20 is located in the cutout portion 11 of the trip latch shaft 10.

Next, when the drive shaft 14 is rotated by the motor to the right and the drive lever 15 is rotated to the right, as shown in FIG. One end of the locking lever 17 passes through the notch 5,
The closing latch shaft 4 rotates counterclockwise. At the same time, drive lever 15
The connecting portion 26 moves to the lower left by the right rotation of the connecting rod 2.
The blocking lever 20 for blocking rotates clockwise through 3, the one end of the blocking lever 20 for blocking passes through the notch 11, and the trip latch shaft 10 rotates clockwise.

Then, the connection between the motor and the drive shaft 14 is released, one end of the closing locking lever 17 abuts on and locks the closing latch shaft 4, and one end of the breaking locking lever 20 trips the latch shaft. 10 is brought into contact with and locked, and both the closing state and the tripping state are in the energy storage state, that is, the closing preparation state.

Next, when the circuit breaker receives a closing command, the closing coil 1 is momentarily excited, the closing coil plunger 2 is attracted, and the closing latch lever 6 is used to make a closing latch shaft 4.
Rotates to the right, the closing latch is released, and the releasing force of the operating spring 27 causes the closing lever 1 for closing as shown in FIG. 3C.
7 rotates to the right, and one end of the closing lever 17 for closing makes the cutout 5
Drive lever 15 rotates counterclockwise through the connecting body 18, the third connecting rod 25 moves to the right, the first connecting rod 23 moves from the position of the broken line to the position of the solid line, and the spindle lever 22 Is pushed by the second connecting rod 24 to rotate counterclockwise, the main circuit is closed, and the closed state is established.

Next, when the breaker receives a trip command,
The trip coil 7 becomes non-excited, and the trip coil plunger 8 is disengaged by the releasing force of the latch spring and the trip spring 13 of the trip coil support rod 9, and the trip latch lever 12 is released.
The tripping latch shaft 10 rotates counterclockwise via the, the tripping latch is released, and the releasing spring of the operation spring 27 causes the tripping locking lever 20 to rotate counterclockwise, so that one end of the tripping locking lever 20 is released. After passing through the notch 11, the spindle lever 22 moves to the first and second
It is pulled by the connecting rods 23 and 24 and rotates clockwise, and the state shown in FIG. 3A is reached, and the main circuit is opened and released.

[0014]

In the case of the conventional apparatus shown in FIGS. 2 and 3, the high-speed closing operation and the high-speed cutting operation are performed.
The non-voltage delayed release operation has not been realized, and there is a problem that the non-voltage delayed release operation needs to be realized. An object of the present invention is to provide an operating device for a pole breaker for a distribution line, which can realize a high-speed closing operation, a high-speed breaking operation, and a non-voltage delayed release operation in view of the above points.

[0015]

In order to solve the above-mentioned problems, an operating device for a pole breaker for distribution lines according to the present invention is a closing coil having a closing coil plunger, which is momentarily excited at the time of closing, and a closing coil. A closing latch shaft that is connected to the plunger via the closing latch lever to latch the closing preparation state and release the latch by exciting the closing coil to put it in the closing state.
A trip coil that has a trip coil plunger and is in a non-excited state when shut off, a trip latch shaft that latches the closed state, and one end supported by a trip latch shaft are urged by a trip spring and the other end is pulled. In an operating device of a pole breaker for a distribution line having a trip latch lever connected to a trip coil plunger, the other end of the trip latch lever is extended to a position where a closing coil plunger is hit.

[0016]

In the operating device for a pole breaker for distribution lines of the present invention constructed as described above, since the other end of the tripping latch lever is extended to the position where the closing coil plunger is hit, the operating spring stores energy. In the energy storage state, that is, in the preparation state for closing, when the power supply has no voltage, the trip coil is de-energized, the trip coil plunger is deenergized, and the trip latch lever is released by the release spring. The trip latch shaft rotates counterclockwise via this to release the trip latch, the other end of the trip latch lever strikes the closing coil plunger, the closing latch shaft rotates clockwise and the closing latch is released, and the power is stored. The spring force of the operated operating spring is completely released.

Further, when the main circuit is closed and the power supply is de-energized, the trip coil becomes non-excited, the trip latch shaft rotates counterclockwise, and the trip latch opens. The released and stored spring force of the operating spring is completely released, and the main circuit opens. Therefore, in both the preparation state and the preparation state, the non-voltage delayed release operation can be realized, and the high-speed closing operation and the high-speed breaking operation can be realized.

[0018]

EXAMPLE One example will be described with reference to FIGS. 1, the same reference numerals as those in FIG. 2 indicate the same or corresponding parts, and the difference from FIG. 2 is that the other end of the trip latch lever 12 is extended to the position where the closing coil support rod 3 is tapped. .

The operating spring 27 is stored in FIG. 3B.
In the energy storage state, that is, in the preparation state for closing, the trip coil 7 is de-energized, the trip coil plunger 8 is deenergized, and the trip spring 13 releases the trip coil 7 when the power source becomes no voltage. The trip latch shaft 10 rotates counterclockwise through the latch lever 12, the trip latch is released, the other end of the trip latch lever 12 strikes the closing coil support rod 3, and the closing latch shaft 4 rotates right. Then, the closing latch is released, the stored spring force of the operation spring 27 is completely released, and the state returns to the state of FIG. 3A.

Further, in the closed state of the main circuit as shown in FIG. 3C, when the power supply is in a non-voltage state, the trip coil 7 is in the non-excitation state and the trip latch shaft 1 in the same manner as described above.
0 rotates counterclockwise, the trip latch is released, the stored spring force of the operation spring 27 is completely released, the main circuit is opened, and the state returns to the state of FIG. 3A.

At this time, the other end of the tripping latch lever 12 strikes the closing coil support rod 3, but since the closing latch state has been released, it means that the striking has been made. Therefore, in both the closing preparation state and the closing state, the non-voltage delayed release operation can be realized without operating the spindle 21, and the high speed closing and the high speed breaking operation can be realized.

[0022]

Since the present invention is constructed as described above, it has the following effects. The operating device for a pole breaker for a distribution line according to the present invention includes a tripping latch lever 1
Since the other end of 2 is extended to the position where the closing coil plunger 2 is struck, the power is supplied to the operating spring 27 in any of the stored state, that is, the preparation state for closing and the state where the main circuit is closed, that is, the closing state. When no voltage is applied, the trip coil 7 becomes non-excited, the trip coil plunger 8 is released, and the trip spring 13 releases the trip latch shaft 10 via the trip latch lever 12 to the left. It rotates, the trip latch is released, and the trip latch lever 12
The other end hits the closing coil plunger 2, the closing latch shaft 4 rotates to the right, the closing latch is released, the stored spring force of the operation spring 27 is completely released, and the non-voltage delayed release operation and high speed operation are performed. It is possible to realize closing and high-speed shutoff operation.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a conventional example.

3A, 3B and 3C are a diagram showing a state of energy release, a state of energy storage, and a diagram of a closing state of the operating device.

[Explanation of symbols]

 1 Closing coil 2 Closing coil plunger 4 Closing latch shaft 6 Closing latch lever 7 Tripping coil 8 Tripping coil plunger 10 Tripping latch shaft 12 Tripping latch lever 13 Tripping spring

Claims (1)

[Claims] 1. A closing coil having a closing coil plunger which is instantly excited at the time of closing and a closing coil lever connected to the closing coil plunger via a closing latch lever to latch a closing preparation state and release the latch by exciting the closing coil. And a tripping coil that has a tripping coil plunger and is in a non-excited state when cut off.
An arrangement provided with a trip latch shaft for latching the closed state, and a trip latch lever supported by the trip latch shaft, one end of which is biased by a trip spring and the other end of which is connected to the trip coil plunger. In the operating device for a pole breaker for electric wire, an operating device for a pole breaker for distribution wire, wherein the other end of the trip latch lever is extended to a position where the closing coil plunger is hit.