JPH1146415A - Device for confirming actuation of circuit breaker and switchboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable confirmation of the actuation of a circuit breaker in a switchboard from a remote place, by the other method than the visual confirmation of the lighting of an indication lamp. SOLUTION: A microphone 80a is provided on the ceiling side of a switchboard chamber A in which a switchboard 10 is installed. A loudspeaker 90 connected to the microphone 80a through wiring is provided near a remote control panel 20 in a central control chamber B in which the panel 20 is installed. The actuating sound of a circuit breaker 30 is confirmed on the remote control panel 20 side by means of the loudspeaker 90a by collecting the actuating sound through the microphone 80a when the circuit break 30 actuated from the control panel 20 makes circuit breaking operations. It is also possible to install the microphone 80a in the switchboard 10 or the loudspeaker 90a in the control panel 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technology of a switchboard in which the operating sound of a circuit breaker when it is turned on or off can be confirmed even at a location remote from the switchboard.

[0002]

2. Description of the Related Art In factories using large machines, office buildings with large electrical equipment capacity, and condominiums such as condominiums, necessary power lines are drawn from a high-voltage power line (main line) via a switchboard.

[0003] Such a switchboard is constructed by combining a switch for a main line for power of a large-sized machine, an overcurrent breaker, an instrument, a relay, and the like, and mounting them together. If the distribution line draws in power lines or is small, it may be possible to open the distribution panel directly and manually shut off the circuit breaker.However, as with large-scale factories, many power lines must be routed through multiple distribution panels. When the remote control panel is pulled in, the remote control panel (including the central control panel, etc.) provided in the central control room is used to remotely control the shutoff operation in each switchboard.

In recent years, office buildings and condominiums have been remarkably becoming higher in height, and control panels such as switchboards and air conditioners are centrally managed in a remote manner as described above. Can be grasped. By remote control from the remote control panel, for example, in the case of emergency or when the operation of a large-sized machine at night is stopped, by turning on the circuit breaker in the switchboard provided at a remote location, the power supply can be appropriately performed. It is possible to stop at any time.

Conventionally, the operating state of the circuit breaker in the switchboard, such as turning on and off, has been confirmed by turning on a confirmation lamp provided on the remote control panel.

[0006]

Conventionally, when a circuit breaker is turned on or off with a remote control panel, as described above, the operation of the circuit breaker in the switchboard is checked on the side of the remote control panel. I had to do it by turning on the lamp.

[0007] However, if the operation of the circuit breaker, which is liable to lead to a serious accident when it is not operated reliably, is often confirmed only by turning on the lamp as in the past, it is unclear whether the operation is reliable. The voice was strongly issued on the spot.

[0008] Therefore, when inspecting or repairing the equipment while stopping the power supply, it is necessary to go to the switchboard to shut off the circuit breaker or to check it visually. There was also.

However, it is not meaningful to provide a remote control panel if it is necessary to go to the switchboard for such visual confirmation.

An object of the present invention is to make it possible to confirm the operation of a circuit breaker of a switchboard even from a distant place by a method other than turning on a lamp.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0012]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

In the configuration of the circuit breaker operation check device of the present invention, a microphone of a sound collection device is provided in a room such as a switchboard room in which a switchboard is installed, and a central control room or the like in which a remote control panel of the switchboard is installed. Install a listening device in the room,
The sound collecting device collects the operating sound of the circuit breaker in the switchboard, and the collected operating sound is confirmed by a listening device so that the operation of the circuit breaker can be confirmed by the sound.

Further, in the switchboard according to the present invention, a microphone is provided as a sound collecting device on a switchboard provided with a circuit breaker or the like thereinto, and operating sounds such as closing and breaking of the circuit breaker are collected.
A listening device provided separately from the switchboard allows the operating sound to be checked. Such a listening device, for example,
It may be provided directly on the remote control panel.

Therefore, the operating sound of the circuit breaker can be checked by ear together with the conventional confirmation lamp.
That is, the normal operation of the circuit breaker is double-checked with the lighting of the confirmation lamp and the operation sound, so that the operator in charge of the remote control panel can proceed to the next operation or work with confidence.

[0016] Since the sound of the circuit breaker is so loud that the sound of the circuit breaker has been made, it is sufficient to provide the sound collector in the switchboard room as described above. Alternatively, it may be provided directly on the switchboard. Further, when a plurality of circuit breakers are provided in the switchboard, a sound collector may be provided for each circuit breaker.

It is meaningless to operate a plurality of circuit breakers at the same time because the operating sounds overlap, but if the circuit breakers are sequentially operated individually, it is possible to confirm the operation of each circuit breaker together with the confirmation lamp. You can double check.

The listening device, such as a loudspeaker, is configured so that the input sound or the like collected as an electric signal by the microphone of the sound collecting device is reproduced as an electric signal again through an amplifier and can be heard. The device described above may be used.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(Embodiment 1) In the circuit breaker operation confirming device of the present invention, the switchboard 10 is provided in a switchboard room A as shown in FIG. The remote control panel 20 is configured so that various devices in the switchboard 10 can be remotely controlled.

The switchboard 10 is constructed by collectively storing various devices such as a circuit breaker 30 in a grounded steel box. The circuit breaker 30 is schematically shown by a dotted line in FIG.

As shown in FIG. 2, a name display plate 12 is provided above the board surface 11 of the switchboard 10. A control switch 40 is provided at a substantially central position below the name display plate 12. A green signal light 41 and a red signal light 42 are respectively provided slightly above the control switch 40. The green signal light is lit during normal operation, and the red signal light blinks in an emergency to notify a failure.

Further, below the control switch 40, an ammeter 50, a voltmeter 60, and a wattmeter 70 are respectively provided on the switchboard 1.
0 is provided for monitoring control. Panel surface 1 of switchboard 10
The configuration of 1 does not need to be limited to the configuration of FIG. 2, and various meters and the like may be provided in addition to the meters such as the ammeter 50 in accordance with the use state of the switchboard 10.

In the present embodiment, two switchboards 1
0 are stacked in two stages, and a circuit breaker 30 is provided in each switchboard 10.

On the other hand, a sound collection device 80 is provided in the switchboard room A. In the present embodiment, a microphone 80a is provided as a sound collecting device 80 on the ceiling side above the switchboard 10 so that the operating sound of the circuit breaker 30 in the switchboard 10 can be collected.

A conventional commercially available microphone may be used as the microphone 80a (80). For example, in a quiet switchboard room A, there is no fear that ambient noise will enter. Is also good.

Further, the microphone 80a provided in the switchboard room A is hard-wired to a listening device 90 provided in a central control room B provided at a location remote from the switchboard room A. In this embodiment, the listening device 90 includes the speaker 9.
0a is used, and the speaker 90a (90) is the switchboard 1
0 is provided near the remote control panel 20. A speaker 90a is provided on the ceiling side near the remote control panel 20 in the central control room B.

As described above, when the circuit breaker 30 in the switchboard 10 in the switchboard room A is turned on or off by operating the remote control panel 20 in the central control room B, the microphone provided in the switchboard room A The shut-off sound and closing sound of the circuit breaker 30 are collected by 80a.

The operating sound such as the shut-off sound and the closing sound is converted into an electric signal and collected by the microphone 80a.
The signal is sent to the speaker 90a via the amplifier 91.

The electric signal amplified by the amplifier 91 is converted into sound by the speaker 90a, and the operation sound of the circuit breaker 30 is heard in the central control room B. Furthermore, in the present embodiment, the remote control panel 20 includes the circuit breaker 3
Since a lamp is also provided for confirming the operation of the circuit breaker 30, the operation of the circuit breaker 30 is double-checked by confirming the operation sound and confirming the lighting of the lamp.

In the above embodiment, the microphone 80a and the speaker 90a are connected by wiring.
For example, it is also possible to use an omnidirectional wireless microphone as the sound collecting device 80 and not to provide a wiring connection between the sound collecting device 80 and the speaker 90a. A conventional commercial product may be used as the microphone 80a.

(Embodiment 2) In this embodiment, the switchboard 10 is provided without the microphone 80a in the switchboard room A.
A microphone 80a is provided near the circuit breaker 30 in the inside. The microphone 80a is provided on the back side of the board 11 near the circuit breaker 30, as shown in FIG.

The configuration of the microphone 80a to be used is different from that of the microphone 80a installed in the switchboard room A of the first embodiment, and is bidirectional so as not to pick up the operation noise of other devices in the switchboard 10. A unidirectional configuration may be used.

On the other hand, in this embodiment, the listening device 90 may use the speaker 90a having the same configuration as that used in the above embodiment, and is provided in the remote control panel 20.

As shown in FIG. 4, the remote control panel 20 is provided with a graphic panel 22, a monitor screen (CRT) 23, and an alarm display panel 24 at the center of the front panel 21 as in the conventional case. . In the present embodiment, a through-hole 25 is formed in the front panel 21 between the graphic panel 22 and the monitor screen 23, and a speaker 90a is attached to the back of the front face 21 as shown in FIG. .

On the other hand, the operation unit 26 has an operation panel 27
And a telephone / intercom 28.

In this way, the circuit breaker 3 in the switchboard 10 in the switchboard room A is controlled by the remote control panel 20 in the central control room B.
When 0 is operated, an operation sound such as a shut-off sound or a closing sound of the circuit breaker 30 is collected by the microphone 80a. In this case, the microphone 80a is provided near the circuit breaker 30 in the switchboard 10, even in the case of a muffling design in which the shut-off sound and the closing sound of the circuit breaker 30 are reduced, unlike the above embodiment. As a result, sound can be reliably collected.

As described above, the operating sound such as the shut-off sound of the circuit breaker 30 is converted into an electric signal in the microphone 80a, and this electric signal is transmitted to the amplifier 91 provided in the remote control panel 20 through the connection wiring. Sent. The electric signal is amplified by the amplifier 91, and the speaker 90a connected to the amplifier 91
Is converted to sound.

The operator operates the circuit breaker 30 using the remote control panel.
Can be confirmed by both the conventional confirmation lamp (not shown) and the operation sound heard through the through-hole 25 of the front panel 21.

In the switchboard 10 of this embodiment, the switchboard 1
0 shows a configuration in which one circuit breaker 30 is provided, but in the case of a switchboard 10 in which a plurality of circuit breakers 30 are provided, each switchboard 10 is provided in the switchboard 10 as in the above-described embodiment. One sound collector 8 so that the circuit breaker 30 can collect sound.
0 may be provided.

If the circuit breaker 30 is designed so as to reduce operating noise, a plurality of circuit breakers 3
0 may be provided near each of them.

As described above, the invention made by the present inventor has been specifically described based on the embodiments. However, the present invention is not limited to the above-described embodiments, and can be variously modified without departing from the gist thereof. Needless to say, there is.

For example, in the above-described embodiment, a closed type so-called cubicle type is described as an example of a switchboard. However, the present invention may be applied to an open switchboard.

Further, the first and second embodiments may be used in combination. Alternatively, the sound collection device 80 may be provided in the switchboard room A, and the listening device 90 may be provided in the remote control panel 20. Further, a configuration in which the sound collecting device 80 is provided in the switchboard 10 and the listening device 90 is provided in the central control room B is also conceivable.

[0045]

Advantageous effects obtained by typical ones of the inventions disclosed in the present application will be briefly described.
It is as follows.

(1). In the configuration of the circuit breaker operation check device of the present invention, the sound collector is provided in the room provided with the switchboard, and the listening device is provided in the room provided with the remote control panel of the switchboard. The operating sound is collected by the sound collecting device and can be heard by the listening device. Therefore, the operation check of the circuit breaker can be performed by sound, and the operation of the circuit breaker can be double-checked in combination with the conventional lamp check.

(2). In the configuration of the switchboard of the present invention, since the sound collecting device is provided in the switchboard, sound can be reliably collected even when the operating sound of the circuit breaker is low.

(3). In the configuration of the switchboard according to the present invention, the sound collector is provided in the switchboard. Only the operating sound of the vessel can be collected.

(4). In the configuration of the switchboard according to the present invention, the listening device can be provided directly on the remote control panel of the switchboard, so that the person in charge of the remote control panel is more concentrated than in the case where the listening device is provided in the room where the remote control panel is installed. The operation sound of the circuit breaker can be confirmed reliably.

[Brief description of the drawings]

FIG. 1 is an explanatory side sectional view showing an installation state of a circuit breaker operation check device of the present invention.

FIG. 2 is a front view showing a panel surface of the switchboard of the present embodiment.

FIG. 3 is a front view showing a board surface when a sound collecting device is provided in the switchboard of the present embodiment.

FIG. 4 is a perspective view showing a remote control panel of the present embodiment.

FIG. 5 is a side sectional view showing a mounting state of a listening device in the remote control panel of the present embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 switchboard 11 panel surface 12 name display panel 20 remote control panel 21 front panel 22 graphic panel 23 monitor screen 24 alarm display panel 25 through hole 26 operation unit 27 operation panel 28 telephone / intercom 30 circuit breaker 40 control switch 41 green signal light 42 red signal light Reference Signs List 50 ammeter 60 voltmeter 70 wattmeter 80 sound collector 80a microphone 90 listening device 90a speaker 91 amplifier A switchboard room B central control room

Claims (4)

[Claims] 1. A sound collecting device is provided in a room provided with a switchboard, and a listening device is provided in a room provided with a remote control panel of the switchboard, and the operating sound of a circuit breaker in the switchboard is controlled by the sound collecting device. A circuit breaker operation confirmation device configured to collect sound and listen to the operation sound with the listening device to confirm the operation of the circuit breaker. 2. A switchboard, wherein a switchboard is provided on the switchboard so that the operating sound of the circuit breaker in the switchboard can be checked by a listening device provided separately from the switchboard. 3. The switchboard according to claim 2, wherein the listening device is provided at a remote control panel of the switchboard provided separately from the switchboard or near the remote control panel. And switchboard. 4. The switchboard according to claim 2, wherein the sound collecting device is a microphone, and the listening device is a speaker.