JPH0657046U - Central monitoring device - Google Patents

Abstract

(57) [Summary] [Purpose] The monitoring screen enables quick and accurate understanding of the cause of status changes due to power distribution equipment failures. [Arrangement] Normally, the monitor display device 13 is set to "ON",
Symbol mark 2 of each breaker 7 that changes depending on "OFF"
A system diagram screen 14 for the entire equipment in which 3 is arranged is displayed, and by selecting the symbol of the circuit breaker 7 on this screen 14, a related information screen consisting of the state of the relay 8 related to the circuit breaker and a trend graph of the analog amount. 15 is displayed, and by selecting the relay 8 on this screen 15, the guide screen 23 of the ripple change accompanying the state change of the relay 8 is displayed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a central monitoring device for power receiving and distribution equipment that displays a monitoring screen on a monitor display device.

[0002]

[Prior art]

 Conventionally, this type of central monitoring device collects contact signals of circuit breakers, relays, etc. sent from terminal stations in various places of the equipment and analog quantity detection signals such as current and voltage. Further, from the result of this collection, the state of the circuit breaker “ON”, “OFF”, the relay “ON”, “OFF”, etc. and the change of the analog amount such as current, voltage etc. are monitored.

Then, based on this monitoring, a screen 1 shown in FIG. 3 is displayed as a monitoring screen on a monitor display device such as a CRT. On this screen 1, the color of the symbol 2 of the upstream circuit breaker and the symbol 3 of the circuit breaker of each branch path changes depending on whether it is “on” or “off”.

Further, in the vicinity of each symbol 3, a relay group symbol 4 related to “ON” and “OFF” of the circuit breaker of each branch path is provided, and this symbol 4 blinks depending on the state change of the relay group. .

Further, the collected current value is numerically displayed at the current display position 5 of each branch path. Then, the operator (operator) of the power receiving / distributing equipment grasps the occurrence of a failure by taking a change in the colors of the symbols 2 and 3 on the screen 1 and blinking the symbol 4, and takes appropriate measures.

[0006]

[Problems to be solved by the device]

 In the case of the above-mentioned conventional central monitoring device, since it is necessary to grasp the cause of the state change that has occurred only on the screen 1, the operator is required to have a high level of knowledge of the power receiving and distribution equipment. However, there are some problems in which the cause cannot be grasped quickly and accurately.

That is, although the actual state change is different between the case where the circuit breaker is “open” due to a trip due to a failure and the case where the circuit breaker is “open” due to control during maintenance, inspection, etc. 1 is displayed without distinguishing them by the color change of symbols 2 and 3 and the blinking of symbol 4.

Therefore, when a change occurs on the monitoring screen, the operator determines whether or not there is a failure based on the color change of the symbols 2 and 3, the blinking state of the symbol 4, the current value of each branch and his own knowledge. It is necessary to judge the cause of the failure and to grasp the cause of the failure, and it is necessary to have a high degree of knowledge, and even if it has a high degree of knowledge, the states of related relays, etc. cannot be accurately known. However, it is difficult to grasp the cause (background) of a failure quickly and accurately. An object of the present invention is to enable a monitor screen to promptly and accurately grasp the cause of a state change due to a failure of power receiving and distribution equipment.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the central monitoring apparatus of the present invention, a system diagram screen of the entire equipment in which the symbol mark of each circuit breaker which normally changes by "ON" and "OFF" is arranged on the monitor display device Is displayed, and by selecting the breaker symbol on this screen, the related information screen consisting of the status of the relay related to the breaker and the trend graph of the analog quantity is displayed, and by selecting the relay on this screen, Displays a guide screen for ripple effects associated with relay status changes.

[0010]

[Action]

 In the case of the central monitoring device of the present invention configured as described above, the monitoring screen of the monitor display device is a system diagram screen of the entire equipment similar to the conventional monitoring screen by symbol selection, etc., and the circuit breaker selected from this screen. Switch to the related information screen of the status of the relay related to and the related information of the trend graph and the guidance screen showing the ripple changes caused by the operation of the relay selected from this screen.

Therefore, when the state of any of the circuit breaker symbols on the system diagram screen changes due to a failure, etc., it is possible to determine whether or not there is a failure by selecting the circuit breaker symbol and switching to the related information screen. The cause can be easily understood. In addition, when a relay whose status has changed is selected on the related information screen, a guidance screen showing the changes in other relays and circuit breakers due to the status change of this relay is displayed, and the details of this screen can be used to confirm the history of the failure. You can do it.

[0012]

【Example】

 One embodiment will be described with reference to FIGS. 1 and 2. As shown in Fig. 1, the terminal stations 6 installed in various places of the power receiving and distributing equipment have the contactor signals of the circuit breaker 7 and relay 8 and the current and voltage from the converter (transducer) 9, which are shared by the terminal stations 6, respectively. Analog signal detection signals such as the above are collected and sent to the monitoring processing unit 11 of the central monitoring apparatus 10 via the communication line 9.

The monitoring processing unit 11 is formed by using a microcomputer or the like, collects contact signals and detection signals from various places, and turns the circuit breaker 7 “ON” and “OFF” and the relay 8 “ON”. , "OFF", etc. and changes in current, voltage, etc. are monitored. Also, for analog quantities such as current and voltage, each momentary value is accumulated and held.

Further, the display processing circuit 12 of the monitoring processing unit 11 forms a display signal of the monitor screen, and the monitor screen is displayed on the monitor display device 13 such as a CRT based on the display signal. As shown in FIG. 2, this monitor screen normally comprises a system diagram screen 14 of the entire equipment in which the symbols 2 and 3 of the circuit breaker 7 are arranged, as in the screen 1 of FIG.

When any of the circuit breakers 7 on this screen 14 is “opened” due to a failure or control, the color of the symbol 2 or 3 of the circuit breaker 7 changes, and the symbol 4 of the associated relay 8 is changed. Flashes. Next, when the discolored symbol 2 or 3 is selected by operating the mouse on the system diagram screen 14 or the like, the display screen of the monitor display device 13 is switched to the related information screen 15 of FIG.

The screen 15 is composed of a failure display area 16 and an analog display area 17, and the failure display area 16 is a self-display for displaying the operating state of the relay 8 associated with the selected breaker 7 by blinking symbols. List 19 and a system display list 21 for displaying downstream failure systems by blinking symbols 20, and the analog display area 17 shows the current, voltage, etc. of the system (branch path) in which the selected breaker 7 is provided. An analog trend graph 22 is displayed.

Since information related to the selected circuit breaker 7 is displayed in a list on the related information screen 15, the cause of the “break” of the circuit breaker 7 can be easily grasped from this screen 14. Further, when the blinking symbol 18 of the related information screen 15 is selected by a mouse operation or the like and the relay 8 whose state has changed is selected, the display screen of the monitor display device 13 is switched to the proposed screen 23 of FIG.

This screen 23 shows another relay 8 and circuit breaker 7 that change in association with the change in the state of the selected relay 8 by a flow chart, and displays so-called ripple changes. Therefore, in the event of a failure, it is possible to easily understand the reason why the circuit breaker 7 was “opened” from the guide screen 23, and to accurately understand the circuit breaker 7 and the relay 8 that should be restored and take appropriate measures. Can be taken.

Then, as the monitoring screen, not only the system diagram screen 14 is displayed, but also the related information screen 15 and the guidance screen 23 are displayed by the operator's symbol selection on the screen, which is necessary for grasping the state change. In order to provide such information as needed, it is possible to promptly and accurately grasp the cause and take appropriate measures when the state of the circuit breaker 7 changes, even if you do not have a high level knowledge of power distribution equipment. It is possible to do quick recovery in case of failure and prevent secondary disasters.

[0020]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. The monitor screen of the monitor display device 13 is selected from symbols such as the system diagram screen 14 of the entire equipment, the state of the relay 8 related to the circuit breaker 7 selected from this screen 14, the related information screen 15 of the trend graph, and this screen. Since the screen changes to the guidance screen 23 that shows the ripple changes caused by the operation of the selected relay 8, if any of the breaker 7 symbols on the system diagram screen 14 changes due to a failure, etc. By switching to the related information screen 15 of the device 7, it is possible to easily grasp whether or not there is a failure, and also to know the history of the failure from the guidance screen 23. Therefore, even if the user does not have a high level knowledge of power distribution equipment, the cause of the status change due to a failure can be grasped quickly and accurately.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a central monitoring device of the present invention.

FIG. 2 is an explanatory diagram of a monitor screen of the monitor display device of FIG.

FIG. 3 is an explanatory diagram of a monitoring screen of a conventional device.

[Explanation of symbols]

 7 Circuit breaker 8 Relay 13 Monitor display device 14 System diagram screen 15 Related information screen 23 Guidance screen

Claims (1)

[Scope of utility model registration request] 1. A central monitoring device that collects contact signals of circuit breakers and relays at various locations of power distribution equipment and detection signals of analog quantities such as current and voltage, and displays a monitoring screen based on the collected results on a monitor display device. , The monitor display device displays a system diagram screen of the entire facility in which the symbol marks of each circuit breaker, which normally changes depending on “ON” and “OFF”, is displayed, and by selecting the circuit breaker symbol on the system diagram screen, , A related information screen consisting of the status of the relay related to the circuit breaker and a trend graph of the analog amount, and a guide screen of a ripple change accompanying the status change of the relay by selecting the relay on the related information screen. Central monitoring device for displaying.