JP2006156070A - Circuit breaker with reclosing function - Google Patents

Abstract

[PROBLEMS] In installing a circuit breaker with a reclosing function in an electric circuit, wiring connection to the electric circuit is simplified to improve wiring workability and mounting workability, and occurrence of an unnecessary operation or failure due to incorrect wiring To provide a circuit breaker with a reclosing function capable of preventing
When a circuit breaker is opened due to an abnormal current flowing in the circuit breaker, a leakage current or a lightning surge, the circuit breaker contact opening operation causes the circuit breaker contact device to be closed again. A reclosing control unit that operates on the operation handle of the circuit breaker to perform the reclosing operation, and is connected to the power supply unit that is connected to the electric circuit in the housing and acquires the power source, and is connected to acquire the power source from the power source unit. A motor unit provided to drive the handle action unit, and an arithmetic unit connected to obtain power from the power source unit and outputting a drive signal to the motor unit when a predetermined operating condition is met. A circuit breaker with a reclosing function is provided.
[Selection] Figure 1

Description

The present invention relates to a circuit breaker with a reclosing function that automatically returns the circuit breaker to a closed state when the circuit breaker connected to the circuit is opened due to overcurrent, leakage current, lightning surge, etc. . In particular, the present invention relates to a circuit breaker with a reclosing function that is installed in an unmanned base or the like and automatically recloses an electric circuit when the circuit breaker does not operate.

A circuit breaker with a reclosing function is usually installed in an unmanned base, etc., and is installed in a circuit breaker to automatically close the circuit when the circuit breaker is opened due to overcurrent, leakage current, lightning surge, etc. It acts to act on the operating handle to perform a closing operation.
As shown in FIG. 1 of Patent Document 1 (Japanese Patent Application Laid-Open No. 2003-297217) shown in FIG. 8, the structure of the circuit breaker connected to the electric circuit and the operation handle of the circuit breaker include the handle action unit. When the circuit breaker is opened, the circuit breaker is configured to include a reclosing means that acts on the operation handle to operate the electric circuit in a closed state.
An operation mechanism using a motor unit, a gear, a shaft, etc. is used for the operation of the handle action part of the reclosing means, and the gear part and the shaft are driven by the motor part, and the handle action part is applied to the operation handle to close the electric circuit. What is known to operate is known.

Further, as shown in FIG. 1 of Patent Document 2 (Japanese Patent Laid-Open No. 2003-32874) shown in FIG. 9, the circuit breaker is attached to the circuit breaker and automatically reconnected when the circuit breaker trips. An automatic re-input device for input is disclosed. The reclosing device is composed of a closing control device 1 and an electric operating mechanism 2, and the electric operating mechanism 2 operates the handle of the circuit breaker 3 to input the circuit breaker 3.
The wiring in the electric circuit of the making control device is connected to the primary side (power supply side) of the circuit breaker 3 interposed in the electric circuit by connecting the power supply circuit 10 provided in the making control device 1 through a connection line to acquire the power. The connection is made so as to acquire the power supply of the electric operation mechanism 2 from the middle of the connection line.

In addition, in such a circuit breaker with a reclosing function, it may be used in a mountainous area where the demand of power is expected to be low, and a high-voltage distribution line (6600V distribution line) from a substation is used. It is provided so as to intervene in a distribution line that is stepped down from a laid utility pole and distributed by a pole transformer provided on the utility pole. The distribution path is used in mountainous areas and the like, and since the line length becomes long, 400 V distribution that is not easily affected by a voltage drop is used. FIG. 10 shows a wiring connection diagram of a circuit breaker with a reclosing function in an electric circuit.

As shown in FIG. 10, the circuit breaker with a reclosing function is a portion indicated by a dotted line in the figure. The primary side of the circuit breaker with a reclosing function is provided with a transformer for stepping down from the high-voltage distribution line, and the secondary side is for stepping down to 100V or 200V to distribute power to a house or the like. The wiring is provided with a transformer.

For voltage step-down from the high-voltage distribution line, two pole transformers (6600V / 200V) are installed on the utility pole where the high-voltage distribution line (6600V) is laid, and the voltage input of the first and second transformers By connecting the output side in parallel to the electric circuit and connecting the output side in series, the connection is made so that the voltage across the output side is 400V.

The connection point on the voltage output side of the first transformer and the second transformer is grounded. The first transformer is provided with an output terminal for 100 V, and the control power from the ground point and the output terminal for 100 V of the first transformer to the reclosing means is acquired. In other words, the circuit breaker with a reclosing function needs to draw in the control power supply line in addition to the incoming and outgoing lines of the electric circuit, and it is necessary to draw / draw out the electric wires of the three paths in total. In addition, when installing a circuit breaker with a reclosing function, a dedicated distribution board was installed in the base station and installed in it.
JP 2003-297217 A (FIG. 1) JP 2003-32874 A (FIG. 1)

However, since the wiring to the electric circuit in the conventional circuit breaker with a reclosing function was performed as described above, in addition to the incoming and outgoing lines of the 400V distribution line during the wiring work on the actual pillar. Wiring work is complicated because it is necessary to connect the control power line. In addition, since the wiring work is complicated, there is a possibility of an electric shock during the work, or an erroneous wiring.

As a possibility of incorrect wiring, in some cases, the control power line may be mistakenly connected to the other end different from the grounding point of the first transformer, that is, the terminal on the 200V power output side and the output terminal for 100V. (FIG. 11). In this case, as a result, the control power supply line is connected and wired separately from the ground and the ground, and if it is mistakenly wired in this way, an induced voltage is generated in the control power supply line due to, for example, a lightning surge. In this case, an induced current is generated between the earth and the 100V output line, or between the earth and the 200V output line, an excessive current flows through the reclosing means, and the circuit breaker with the reclosing function may be unnecessary. The control circuit could break down.

In addition, when installing a circuit breaker with a reclosing function, a dedicated distribution board is provided. This increases the incidental cost of installation, necessitates a new installation space, and makes the work complicated. There was a problem.

Therefore, the invention of the present invention has been made in view of such circumstances, and when installing a circuit breaker with a reclosing function in an electric circuit, wiring connection to the electric circuit is simplified, wiring workability and installation workability are improved. An object of the present invention is to provide a circuit breaker with a reclosing function capable of preventing occurrence of an unnecessary operation or failure due to a wiring mistake.

The circuit breaker with a reclosing function of the present invention is
In a case that consists of a case and a door that can be opened and closed so as to cover the opening of the case.
Provide incoming and outgoing holes for the wires that make up the electrical circuit,
A contact device for connecting and disconnecting an electric circuit, and a contact device for connecting and disconnecting each end portion of the electric wire that is inserted from the inlet hole and the electric wire that is output from the outlet hole in the housing, and the contact device An opening / closing mechanism that operates to open and close the contact device, an operation handle that has an operation unit that operates on the opening / closing mechanism and performs the opening / closing operation of the contact device, An operating state detecting means comprising an auxiliary switch for detecting the off and trip states, and a circuit breaker comprising:
When the circuit breaker is opened by contact opening operation of the circuit breaker due to an abnormal current flowing through the circuit breaker, leakage current, lightning surge, etc., the circuit breaker receives the output signal output from the operation state detecting means again. A handle action portion is provided for acting on the operation handle to reclose the circuit breaker contact device;
In the control unit that controls the operation of the handle action unit,
A power supply unit that is connected to an electric circuit in the housing and obtains power;
A motor unit connected to obtain power from the power source unit and provided to drive the handle action unit and acting on the handle action unit;
A handle operating unit that is connected to acquire power from the power supply unit and that receives an output signal output from the operation state detecting means and that operates on an operation handle when a predetermined operation condition is set in advance is provided. A calculation unit that outputs a drive signal to the motor unit to be driven;
A circuit breaker re-introducing means comprising:
It is a circuit breaker with a reclosing function characterized by comprising.

According to such a configuration, the power applied to the circuit breaker re-introducing means is configured to be collectively supplied from the power supply section provided in the casing, and the connection to the primary side electric circuit of the power supply section is performed in the casing. Therefore, it is not necessary to connect the control power supply to the pole transformer (6600V / 200V) provided on the utility pole where the high-voltage distribution line (6600V) is laid. In addition to ensuring that all wiring can be performed within the housing, wiring work can be easily performed, wiring errors can be prevented, and unnecessary operation of the circuit breaker with reclosing function can be prevented. It is something that can be done.

The circuit breaker with a reclosing function may be a circuit breaker with a reclosing function, which is provided to be interposed in a 400 V distribution circuit.
In this way, it is possible to further improve the wiring workability when installing a circuit breaker with a reclosing function in a 400 V distribution circuit used for power distribution in mountainous areas and the like, and a circuit with a reclosing function. Unnecessary operation of the circuit breaker can be prevented, and more stable power distribution can be performed in power distribution in mountainous areas.

Further, a column body attaching means for attaching a circuit breaker with a reclosing function to the column body is provided on the rear surface of the circuit breaker with a reclose function, and is used by being attached to the column body. You may provide the circuit breaker with a reclosing function of Claim 1 or Claim 2.
In this way, when installing the circuit breaker with a reclosing function, in addition to simplifying the wiring work, the installation work can be simplified, and further convenience can be brought about.

The circuit breaker with a reclosing function of the present invention is
In a case that consists of a case and a door that can be opened and closed so as to cover the opening of the case.
Provide incoming and outgoing holes for the wires that make up the electrical circuit,
A contact device for connecting and disconnecting an electric circuit, and a contact device for connecting and disconnecting each end portion of the electric wire that is inserted from the inlet hole and the electric wire that is output from the outlet hole in the housing, and the contact device An opening / closing mechanism that operates to open and close the contact device, an operation handle that has an operation section that operates on the opening / closing mechanism to perform the opening / closing operation of the contact device, An operating state detecting means comprising an auxiliary switch for detecting the off and trip states, and a circuit breaker comprising:
When the circuit breaker is opened by contact opening operation of the circuit breaker due to abnormal current or leakage current flowing in the circuit, the circuit breaker is received again by receiving an output signal output from the operation state detecting means. A handle action portion is provided to act on the operation handle so as to close the contact device of the actuator and to perform a re-closing operation,
In the control unit that controls the operation of the handle action unit,
A power supply unit that is connected to an electric circuit in the housing and obtains power;
A motor unit connected to obtain power from the power source unit and provided to drive the handle action unit and acting on the handle action unit;
A handle operating unit that is connected to acquire power from the power supply unit and that receives an output signal output from the operation state detecting means and that operates on an operation handle when a predetermined operation condition is set in advance is provided. A calculation unit that outputs a drive signal to the motor unit to be driven;
A circuit breaker re-introducing means comprising:
Because it is a circuit breaker with a reclosing function characterized by comprising
It is possible to connect all the wiring in the case, and there is no need to connect the control power line to the pole transformer as in the past.
When installing a circuit breaker with a reclosing function in the electric circuit, wiring connection to the electric circuit is simplified to improve wiring workability and installation workability, and to prevent unnecessary operation and failure due to incorrect wiring. It is possible to provide a circuit breaker with a reclosing function.

A circuit breaker with a reclosing function according to the best embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an external perspective view of a circuit breaker with a reclosing function according to the present invention, and FIG. 2 shows a mounting diagram of the circuit breaker with a reclosing function on a pillar body showing the mounting state of the circuit breaker with a reclosing function. is there. FIG. 3 shows the internal structure of the circuit breaker with a reclosing function.

As shown in these drawings, the housing 1 is composed of a case 11 in which equipment is disposed, and a door 12 that is openably and closably attached by a hinge mechanism so as to cover an opening of the case 11.

In addition, in the lower part of the case 12, there are provided an inlet hole 13 for drawing the power supply side electric wire 15 and an outgoing line hole 14 for drawing out the load side electric wire 16, respectively. The electric wire 16 is configured to penetrate therethrough. Resin packing is attached to the inlet hole 13 and the outlet hole 14 for waterproofing in the case 12.

In FIG. 2, column body attaching means 17 is provided on the rear surface of the housing 1, that is, the surface attached to the column body 18. The column attachment means 17 is for attaching the housing 1 to the column 18, a column filling portion 171 that fills the column, and a universal band 19 for attaching and fixing the object to be wrapped around the column. A free band penetrating portion 172 for penetrating and inserting the band is provided.

In FIG. 3, the internal structure figure of the circuit breaker with a reclosing function is shown, and arrangement | positioning of the apparatus in the case 11 is shown. A circuit breaker 20 is disposed in the case 11 so as to be interposed in the electric circuit, and a circuit breaker re-introducing means is disposed.

In the present embodiment, the circuit breaker 20 uses an earth leakage breaker, and the circuit breaker 20 includes a base and a cover, and has an insulating casing, and an electric circuit is provided in the casing. A plurality of contact devices for turning on and off, an opening / closing mechanism portion that operates on the contact devices to open / close the contact devices, an opening / closing operation on the contact devices that operates on the opening / closing mechanism portions, and An operation handle 23 having a projecting operation portion is provided, and a power supply side connection terminal portion 21 and a load side connection terminal portion 22 for connecting to the electric circuit are provided at both ends of the housing.

Further, the circuit breaker 20 has an operation state including an auxiliary switch configured by using a micro switch that detects the open / close state of the contact device and the on / off state of the open / close mechanism and the trip state in conjunction with the open / close mechanism portion. Detection means 24 is provided.

The microswitch used in the operation state detecting means 24 is always in the open state in a circuit state with the contact of the microswitch open, and an operation piece (not shown) provided to be linked with the contact of the microswitch. ) Is pressed to close the contacts of the microswitch, the circuit is closed.

The operation piece of the microswitch and the opening / closing mechanism of the circuit breaker 20 are connected to the opening / closing mechanism using an interlocking member (not shown), and the movement of the opening / closing mechanism is transmitted to the operation piece. When the device is in the open state, the interlocking member presses the operation piece and closes the contact of the micro switch to create a closed state in the circuit. When the contact device is in the closed state, the interlocking member is Is no longer pressed, and the contacts of the microswitch are opened, creating an open circuit.

Therefore, when the contact device of the circuit breaker 20 is opened, the operation state detection means 24 closes the contact of the microswitch, and the state changes from the open state to the closed state. As an output signal.

The power source side electric wire 15 drawn from the inlet hole 13 is connected to the power source side connection terminal portion 21 of the circuit breaker 20. The load-side electric wire 16 is connected to the load-side connection terminal portion 22 of the circuit breaker 20 and is drawn out of the housing from the output wire hole 14.

The energization in the electric circuit can be turned on and off by operating the operation handle 23 with the circuit breaker 20 to turn the circuit breaker on and off.

Further, a circuit breaker re-introducing means 30 is disposed in the case 11. The recharging means 30 is mainly composed of a control unit 300, a drive unit 310, and a transformer unit 320.

The control unit 300 determines whether or not to perform a recharging operation with respect to the circuit breaker 20, and sends an operation signal to the driving unit so as to perform the reclosing operation when a predetermined condition is met. Is.

The drive unit 310 is driven in response to an operation signal from the control unit 300 and acts on the operation handle 23 of the circuit breaker 20 to re-insert the circuit breaker 20.

The transformer 320 has a power supply side connected to the power supply side connection terminal portion 21 of the circuit breaker 20 and a load side connected to the control unit 300 to transform the voltage of the electric circuit and step down to a voltage suitable for the control unit. Is. Specifically, the AC voltage (AC400V) of the electric circuit is stepped down to an AC voltage (AC100V) suitable for the control power supply of the control unit by a transformer.

First, the control unit 300 will be described with reference to FIG. FIG. 4 shows a block diagram of a circuit breaker with a reclosing function of the present invention.

The control unit 300 is supplied with AC power (AC 100 V) via a control power switch 321 that is provided on the load side of the transformer 320 and turns on / off the power supply to the control unit 300. The AC power supplied from the control power switch 321 is input to the control power supply unit 301 and transformed into a DC voltage (DC12V) used in the control circuit by the control power supply unit 301.
Further, the control unit 300 is provided with a calculation unit 302 composed of a microcomputer for determining whether or not to perform the recharging operation, and a relay 303 for supplying power to the drive unit 310. The relay 303 is electrically connected to the control power supply unit 301 and receives power supply.

The calculation unit 302 is connected to a micro switch provided in the operation state detection means 24 of the circuit breaker 20 by a signal line, and changes in the open state or the closed state of the circuit in accordance with the opening / closing of the contact of the micro switch It can be acquired through a line. As a result, when the predetermined condition is changed from the open state to the closed state, it is determined that the contact device of the circuit breaker 20 has changed from the closed state to the open state, and a drive signal for performing the recharging operation is transmitted. If it is determined and programmed, when the contact of the microswitch is closed, a drive signal for performing the re-on operation can be transmitted.

In addition, the calculation unit 302 and the relay 303 are electrically connected by a signal line, and when the calculation unit 302 determines that a predetermined condition is satisfied, the calculation unit 302 performs a re-input operation. Is sent to the relay 303 and the relay circuit is driven to supply power from the control power supply unit 301 to the drive unit. In addition, when the circuit breaker 20 is immediately shut off after the initial re-turn-in operation, the arithmetic unit 302 performs a subsequent re-start-up operation when the circuit breaker 20 is shut off within 0.2 seconds in this embodiment. Is programmed to stop (protection operation by the lock function) and the circuit breaker 20 operates normally, for example, when overcurrent, short circuit, or leakage current continues, It is provided to protect the human body due to protection and electric shock accidents. In this way, when the re-injection operation is stopped, that is, when the protective operation by the lock function is activated, the personnel went to the site where the circuit breaker with the reclosing function is installed and the cause of the protective operation At the same time, release the lock function and reset the circuit breaker with reclosing function.

Next, the drive unit 310 will be described with reference to FIGS. 3 and 5. FIG. 5 is a side view of the drive unit. The driving unit 310 includes a driving motor 311, a rotating plate 312 fixed to the driving motor 311, a connecting arm 313 having one end connected to the rotating plate 312 via a connecting unit 3121, and the connecting arm 313. The arm 316 is connected to the other end of the arm 316 via the rotary bearing 314, and the action portion 315 is fixed to the arm 316 and acts on the operation handle 23.

The drive motor 311 is connected to the relay 303, and when the drive signal for performing the re-on operation is sent from the arithmetic unit 302, the relay 303 is operated, and power is supplied from the control power supply unit 301. Drive.

Next, the operation of the circuit breaker with a reclosing function will be described.
Usually, the drive unit 310 is in a positional relationship with the operation handle 23 of the circuit breaker 20 as shown in FIG. 5A (standby state). The operation handle 23 of the circuit breaker 20 is in the on position.

Now, when the circuit breaker 20 operates due to an abnormal current (overcurrent or short-circuit current) flowing in the circuit, a leakage current or a lightning surge, and the contact device is opened, the operating state interlocked with the switching mechanism The fact that the contact of the microswitch provided in the detection means is closed and the circuit is closed is input to the calculation unit 302 of the control unit 300 through the signal line. At this time, the operation handle 23 of the circuit breaker 20 is in the cut position, that is, the positional relationship as shown in FIG.

Receiving the input, the arithmetic unit 302 performs determination processing based on the programmed contents, and sends a drive signal for performing a recharging operation to the relay 303.

Upon receiving the drive signal, the relay 303 closes the relay contact, and supplies the power supplied from the control power supply unit 301 to the drive motor 311 of the drive unit 310.

The driving motor 311 that has received the power supply starts rotating (FIG. 6). As a result, the rotating plate 312 fixed to the driving motor 311 also starts to rotate in the direction of the arrow in the figure, and the connecting arm 313 connected via the connection portion 3121 draws an arc in the left direction in the figure. Extruded.

In conjunction with the operation of the connecting arm 313, the arm 316 moves through an arm rotation bearing 314 provided at one end so as to draw a circular arc in the left direction in the figure around the arm rotation center 3161. The handle action part 315 provided on the arm also moves in the left direction in the figure.

As the arm 316 moves, the handle operating unit 315 pushes and moves the operation handle 23 in the direction of closing the circuit breaker 20 to bring the circuit breaker 20 into the on state.

When the driving motor 311 continues to rotate, the rotating portion 312 rotates, and the connecting portion 3121 moves so as to draw a downward arc locus in the direction of the arrow indicated by the dotted line in FIG. The arm 316 and the handle action unit 315 operate in the right direction (the direction away from the operation handle 23). In this case, the operation handle 23 remains stopped at the closed position (entry position) because the operation is performed without interference without interfering with the operation handle 23.

When the rotating plate 312 rotates once and rotates to the original position, the arithmetic unit stops sending the drive signal and enters the standby state again.

That is, when the operation handle 23 of the circuit breaker 20 is in the closed position (on position), even if the circuit breaker reclosing means performs a series of operations, the operation of the circuit breaker 20 is not affected. Only when the handle 23 is in the cutting position, the operation handle is operated.

Next, the connection of the circuit breaker with a reclosing function of the present invention in the distribution line will be described with reference to FIG.

FIG. 7 shows that the 400V distribution line 42 which is not easily affected by the voltage drop even when the wiring length used in the mountainous area is long is the high voltage distribution line 41 (6600V) and the low voltage distribution line 43 (100 / 200V). The example of the distribution line used between is shown.

In order to step down the voltage of 6600 V distributed in the high-voltage distribution line 41 to the 400 V distribution line 42 distributing at 400 V, the first transformer 411 (6600/200 V) is connected to the column branched from the high-voltage distribution line 41, A second transformer 412 (6600 / 200V) is provided. The power supply sides of the first transformer 411 and the second transformer 412 are provided in parallel to the high-voltage distribution line 41. On the load side, the first transformer and the second transformer are connected in series, and the total output voltage is 400V. By using two transformers, a small transformer can be used, and installation on a pillar is simplified.

In the 400V distribution line 42, the circuit breaker with a reclosing function of the present invention is installed on the line. In installation, the electric wire on the power supply side of the electric circuit is drawn into the inlet hole of the housing 1 and the electric wire on the load side is inserted into the outlet hole to connect to the power supply side of the circuit breaker 20 and the connection terminal on the load side. To do. At this time, in the power supply side connection terminal portion, in order to acquire the control power supply of the circuit breaker re-introducing means 30, the connection is performed so that the power supply side of the transformer 320 is tightened with the electric wire.

The 400V distribution line is laid to the vicinity of the customer, and the voltage is lowered from 400V to 100 / 200V by the transformer near the customer, and the 100 / 200V distribution line 43 is distributed to the customer.

It should be noted that the present invention is not limited to the embodiment, and can be freely improved and modified as necessary without departing from the gist of the invention. For example, the AC voltage of the circuit (AC400V) When the voltage is stepped down in the housing 1, a transformer that directly converts the direct current voltage (DC 12 V) used for the operation of the control circuit may be used. With this configuration, it is not necessary to transform AC100V to DC12V in the control power supply unit 301, the number of transformers in the housing can be reduced by one, and the cost of the circuit breaker with a reclosing function can be reduced. Can be done.

Further, in the arithmetic unit 302, when the circuit breaker 20 is immediately shut off when the circuit breaker 20 is turned on again, a protective circuit operation is performed so as to stop the subsequent reclosing operation. It is necessary to reset personnel so that personnel can go to the site and release the protective action of the circuit breaker with reclosing function so that it can be turned on again. From the upper part of the pillar where the circuit breaker with a reclosing function is normally installed, a reset part is installed in the middle part of the pillar so that it is easy for the personnel to operate. It is possible to provide a circuit breaker with a reclosing function so that personnel who have visited the site can easily perform a reset operation.

Furthermore, the circuit breaker re-introducing means 30 is a unit that completes the arrangement of the circuit breaker re-introducing means and the acquisition of power in the casing. By replacing and replacing the unit in the event of a failure of the input means, there is no need for wiring connection work for the pole transformer and no need for replacement of the housing itself, and the reclosing function can be easily restored. Can be done.

The circuit breaker with a reclosing function of the present invention intervenes in the distribution line, and it is not necessary to draw a wire other than the electric line in the casing in order to obtain the driving power of the reclosing means. Even in the distribution line, if you want to install a circuit breaker with a reclosing function, you can easily install it, and you can expand the application of the circuit breaker with a reclosing function. There is a possibility that the cost for the re-input work can be reduced.

1 is an external structural view of a circuit breaker with a reclosing function according to an embodiment of the present invention. It is the figure which attached the circuit breaker with the same reclosing function to the pillar. It is an internal structure figure of the circuit breaker with the same reclosing function. It is a block block diagram of the circuit breaker with the same reclosing function. It is explanatory drawing of the drive part of the circuit breaker with the same reclosing function. It is a figure explaining the drive of the circuit breaker with the said reclosing function. It is explanatory drawing in the distribution line of the circuit breaker with the said reclosing function. It is the figure which showed the prior art example. It is the figure which showed the prior art example. It is the figure which showed the prior art example. It is the figure which showed the prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 11 Case 12 Door 13 Inlet hole 14 Outlet hole 15 Power supply side electric wire 16 Load side electric wire 17 Column body attachment means 171 Column body filling part 172 Free band penetration part 18 Column body 19 Free band 20 Circuit breaker 21 Power supply Side connection terminal portion 22 load side connection terminal portion 23 operation handle 24 operation state detection means 30 circuit breaker re-introduction means 300 control section 301 control power supply section 302 calculation section 303 relay 310 drive section 311 drive motor 312 rotating plate 313 connection Arm 314 Rotating bearing 315 Handle action section 316 Arm 3161 Rotation center 3121 Connection section 320 Transformer section 321 Control power switch 41 High voltage distribution line 411 First transformer 412 Second transformer 42 400V distribution line 421 400/100 / 200V transformer 43 100 / 200V distribution line

Claims (3)

In a case that consists of a case and a door that can be opened and closed so as to cover the opening of the case.
Provide incoming and outgoing holes for the wires that make up the electrical circuit,
A contact device for connecting and disconnecting an electric circuit, and a contact device for connecting and disconnecting each end portion of the electric wire that is inserted from the inlet hole and the electric wire that is output from the outlet hole in the housing, and the contact device An opening / closing mechanism that operates to open and close the contact device, an operation handle that has an operation section that operates on the opening / closing mechanism to perform the opening / closing operation of the contact device, An operating state detecting means comprising an auxiliary switch for detecting the off and trip states, and a circuit breaker comprising:
When the circuit breaker is opened by contact opening operation of the circuit breaker due to an abnormal current flowing through the circuit breaker, leakage current, lightning surge, etc., the circuit breaker receives the output signal output from the operation state detecting means again. A handle action portion is provided for acting on the operation handle to reclose the circuit breaker contact device;
In the control unit that controls the operation of the handle action unit,
A power supply unit that is connected to an electric circuit in the housing and obtains power;
A motor unit connected to obtain power from the power source unit and provided to drive the handle action unit and acting on the handle action unit;
A handle operating unit that is connected to acquire power from the power supply unit and that receives an output signal output from the operation state detecting means and that operates on an operation handle when a predetermined operation condition is set in advance is provided. A calculation unit that outputs a drive signal to the motor unit to be driven;
A circuit breaker re-introducing means comprising:
A circuit breaker with a reclosing function characterized by comprising: 2. The circuit breaker with a reclosing function according to claim 1, wherein the circuit breaker with a reclosing function is provided in a 400V distribution circuit. 3. A column body attaching means for attaching a circuit breaker with a reclosing function to the column body is provided on the back surface of the casing, and the column body is used by being attached to the column body. Circuit breaker with reclosing function as described.