JP3243911B2 - Normally open switching switch automatic judgment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a normally-open switching switch automatic determination system for automatically determining a normally-open switching switch for replacing distribution line switches in a distribution system control system.

[0002]

2. Description of the Related Art A distribution system control system is a system in which switches that can be remotely controlled are installed at various points in a distribution line, and the operation of the switches is automated by controlling the computers remotely at distribution branch offices and sales offices. . Based on this, an automatic accident recovery function has been added to reduce power outages.

[0003] Further, in recent years, there has been an increasing number of power distribution system control systems to which a function of automating normal power distribution operation except for an accident has been added. The system will be described in detail with reference to FIG. 3 by taking as an example the replacement work of a distribution line switch, which is a main device of the distribution system. The replacement work is
It is also called “replacement” or “replacement,” which is due to the replacement of a non-remote control switch for remote control with a remote control switch, or periodic replacement based on machine life.

In FIG. 3, first, when a switch replacement work is planned, an operator registers in advance in the system as a work subject. The contents of the subject to be registered are the construction date and the construction contents. The contents of the work include the removal of existing switches and the construction of new switches. For example, "A switch: removal"
And "B switch: new construction".

[0005] Next, in accordance with the registered construction subject, site work and switch operation required for the construction are registered in the system in advance as the work title. The contents of the subject are
The information includes the start / end date and time of the work / return operation, the operation procedure, and the normally open switch. The normally open switch is a normally open point (also referred to as a link point, a butt, a normally open switch) in advance so that a power failure does not occur on the load side due to removal work. A normally closed switch (also referred to as a segmented switch) to be removed which is switched as a switch that is switched on. The power is cut off on the load side due to removal or turning off.) It is an operation such as displaying a distribution line diagram on a CRT and picking the switch with a stylus pen.

[0006] The construction subject and the work subject registered in advance in this way are called on the CRT screen on the day of the implementation and are implemented. In the case of the construction subject, when execution is instructed, the contents of the construction subject are reflected in the data of the distribution equipment managed by the system. In this case, since the switch is to be removed or newly constructed, the existing switch is removed from the track and the equipment data is updated as if another switch was newly constructed.

[0007] In the case of the work subject, when an instruction to perform each operation of switching and switching back is given, the switch is remotely controlled or the system status is updated according to the operation procedure.

[0008]

When registering the subject of construction work for replacing a switch, the construction contents are entered. In this case, the work content indicates which switch is to be removed and what switch is to be newly installed. When registering a work subject corresponding to this construction subject, a switch that is switched as a normally open point in advance so as not to cause a power failure on the load side by removing the switch is input. This is the switch itself to be removed.

That is, as shown in FIG. 4 (a), although the switch to be removed is input in the construction subject, the switch to be removed is normally opened again in the work subject as shown in FIG. 4 (b). Must be entered as the target of the switching operation. The actual operation is based on the CRT
, The switch to be removed is indicated by a stylus pen or the like, and other related menu items are indicated, which is considerably complicated.

[0010] Further, since the same information is input twice for the construction subject and the work subject, the contents of the two may not match. Duties are divided between the construction subject and the work subject,
Different operators are more likely to be inconsistent.

[0011] If the subject is actually implemented with the mismatch, the switch in the ON state, which is not at the normally open point, will be removed, causing a power failure on the load side of the switch and causing damage. Removal of a switch that is energized is also more dangerous than removal of a switch that is not energized.

The present invention has been made in view of the above points, and an object of the present invention is to eliminate the possibility that the removal switch and the normally-open switching switch will be inconsistent, to save labor in operation work, and to input information incorrectly. It is an object of the present invention to provide a normally-open switching automatic determination method which prevents the occurrence of the switching.

[0013]

According to the present invention, there is provided a power distribution system control system in which a construction subject including a construction date and a construction content and a work subject including a site work and a device operation corresponding to the construction subject are registered in advance. Has a construction subject data file that stores the switch to be removed or newly installed as a switch replacement work, and a normally open switching work subject data file that stores a keyword that refers to the corresponding construction subject.
At the time of registration of the work subject, a construction subject keyword is input, and at a desired timing thereafter, the removal subject switch is taken out by referring to the construction subject by the keyword, and the switch is determined as a normally open switching switch. And

[0014]

[Operation] The operator registers the subject of the switch replacement work, and then registers the work subject. At this time, also input the construction subject keyword. Next, the removal switch is taken out by referring to the construction subject corresponding to the keyword,
It is determined that the switch is a normally open switch. In this way, the input of the normally open switch does not require the input of the normally open switch, and the input of the same information is unified. For this reason, there is no possibility that the removal switch and the normally-open switching switch will be inconsistent, and an input error is completely prevented.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. In the present invention, the data structure shown in FIG. The construction subject data represents the replacement work of the switch as before, and includes data items such as the above-mentioned construction date and time, the name of the removed switch, the name of the newly installed switch, and the like.

Further, as the data representing the normally-open switching work corresponding to the switch replacement work subject, there is normally-open switching work subject data as in the prior art. In the present invention, it is assumed that there is a keyword that can refer to the construction subject corresponding to the work subject data. For example, a serial number assigned to each construction subject, a so-called subject No. Or a construction name or construction number unique to each construction subject. (Design N _O. Also called) is such thing as. Although this is sometimes used for screen display in the past,
If not, a new one will be provided.

Based on the above data structure, processing as shown in FIG. 2 is performed. First, after registering the subject of the switch replacement work, the operator registers the work subject. At this time, the operator is also made to input a keyword of the work subject. After this input, the switch to be removed is taken out by referring to the construction subject data corresponding to the keyword. This switch is automatically determined as a normally open switch. Thereafter, based on the normally-open switching switch, the operation procedure of the switch is automatically created or displayed on the CRT as information for supporting the manual creation, as in the related art.

[0018]

As described above, according to the present invention, a work subject data file for storing a switch to be removed or newly installed as a switch replacement work and a normally open switching work for storing a keyword for referring to the corresponding work subject With the subject data file, input the construction subject keyword when registering the work subject, then refer to the construction subject by the keyword at the desired timing, take out the removal switch, and switch the switch to normally open Since the switch is determined to be a switch, the following excellent effects can be obtained.

(1) Saving labor and speeding up input In the conventional method, since the normally open switch is input one by one, the input operation is complicated. The present invention eliminates the need for a normally open switch input and greatly simplifies operation. This makes it possible to save labor and speed up work.

(2) Prevention of input error In the conventional method, it is necessary to input the removal switch and the corresponding normally-open switching switch, respectively. The direct cause is an input error due to carelessness, recognition error, or the like, but is essentially due to the fact that input of the same information is not unified. In other words, the fact that the same information is separately input twice is a true cause of causing a mistake.

According to the present invention, the input of the normally open switch is unnecessary only by inputting the removed switch, and the input of the same information is unified, so that the removed switch and the normally open switch may not match. There is no need to make any mistakes, and input errors can be completely prevented.

(3) Prevention of danger / damage In connection with the above item (2), if work or construction is performed with the dismantled switch and the normally-open switching switch inconsistent, the switch to be removed is normally opened. This means that power is being supplied to the load in the on state. Therefore, when it is removed, the load side will lose power, causing serious damage to the economy and society. It is also very dangerous to remove a switch that is energized. The present invention can eliminate these dangers and prevent damage.

[Brief description of the drawings]

FIG. 1 is a data configuration diagram showing an automatic determination method of a normally-open switching switch of the present invention.

FIG. 2 is a flowchart of an automatic determination process of a normally-open switching switch of the present invention.

FIG. 3 is a configuration diagram showing a distribution system control system.

FIG. 4 is an explanatory diagram showing a construction subject and a work subject in the distribution system control system.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H02J 3/00 G06F 17/60 H02J 13/00

Claims (1)

(57) [Claims] Claims: 1. In a distribution system control system in which a construction subject including construction date and time and construction contents and a construction subject corresponding to the construction subject including site work and equipment operation are preliminarily registered, removed as a switch replacement work.・ It has a construction subject data file that stores the newly installed switch and a normally open work subject data file that stores the keyword that refers to the corresponding construction subject, and the construction subject keyword is entered when the work subject is registered. And automatically removing the removed switch with reference to the construction subject by the keyword at a desired timing thereafter and determining the switch as a normally-open switching switch.