JPH03107722A - Walk-around checking system - Google Patents

Abstract

PURPOSE:To display and store arithmetic results of various physical quantities at the time of inspection immediately by calculating a desired physical quantity according to data which are inputted by a portable computer and displaying and storing its result. CONSTITUTION:When an inspector start an inspection tour, a display of data input is made on the screen 1a of the portable computer 1. According to it, the inspector inputs the current outside temperature on a key input part 1b. Then when a display indicating the input of the gap pressure data of an equipment to be inspected, e.g. GIS is made, the gas pressure is read on a manometer and inputted. This gas pressure is under an environmental influence, so it is controlled with a value which is converted into density at 20 deg.C. The gas density at 20 deg.C is found from the outside temperature and gas pressure. Consequently, the outside temperature and gas pressure data are applied to a function to calculate the gas density value. This arithmetic result is displayed on the screen 1a of the computer 1.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a patrol inspection system suitable for inspecting and monitoring substation equipment.

(Prior Art) In modern society, electric power is indispensable, and as power outages often become a social problem, the demand for a stable supply of electric power is expected to increase in the future. In addition, if an accident occurs in a Q-transformer, the impact could be very large, so it is important to prevent accidents by catching signs of them in advance. is desperately needed. For this reason, substations are generally inspected and inspected once a month or every few months, collecting various data regarding each piece of equipment, and determining whether or not there is any abnormality.

In addition, in recent years, with the increase in electricity demand, 275KV, 50KV,
Gas insulated switchgear with high voltage and large capacity such as 0KV is being added to substations that previously used air insulated equipment. That is, Fig. 4 shows a plan view of a general substation, where part A is a 500KV gas insulated switchgear, part B is a 500KV/275KV transformer, part 0 is a 275KV air insulated switchgear, 0 part is 275KV/6
6K V transformer, E part is 66KV air insulated switchgear. Such patrolling and inspection work at substations was carried out by patrollers carrying record sheets for recording equipment conditions and various data, and sequentially checking each piece of equipment within the substation.

(Problems to be Solved by the Invention) However, in the conventional patrol inspection system as described above, there are problems to be solved as described below.

In other words, when patrolling and inspecting a substation like the one shown in Figure 7 is carried out based on the conventional system, the inspection data becomes enormous due to the large number of component devices, and it takes a lot of effort to organize it. It took a lot of time. Furthermore, although inspection work is carried out following a fixed route, inspections may be overlooked, making it impossible to perform highly accurate patrols and inspection work. Furthermore, if you want to compare the collected data with past data, you must return to the office or central monitoring center and examine the binder that stores the past data record sheets. Work efficiency could not be improved.

In addition, as substations become larger, the number of equipment installed is rapidly increasing, but on the other hand, the number of patrols and inspections for these equipment tends to be reduced due to rising labor costs, etc. Since detection of warning signs tends to be delayed, there was a desire to develop a more efficient patrol and inspection system.

Furthermore, due to social needs such as improving the quality of electric power, there is an increasing need to further improve the precision of patrols and inspections by rationally using various patrol data in various areas.

The present invention was proposed to eliminate the above-mentioned drawbacks, and its purpose is to improve work efficiency during patrol inspections,
It is an object of the present invention to provide a highly reliable patrol inspection system that can perform calculations of various physical quantities, display calculation results, store them, etc. immediately at the time of inspection.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a patrol inspection system that records patrol inspection data of a substation on a portable computer during on-site patrol, in which the portable computer records a plurality of input data. It is characterized by calculating a desired physical quantity based on the data, and displaying and storing the result.

(Function) According to the patrol inspection system of the present invention, it is possible to calculate a desired physical value based on a plurality of data inputted to a portable calculator, and immediately display and store the results, so that patrollers can There is no need to perform separate arithmetic processing, and whether or not an abnormality has occurred in the equipment to be patrolled can be immediately determined at the time of the patrol inspection.

(Example) Hereinafter, an example of the present invention will be specifically described based on FIGS. 1 to 3.

In this embodiment, a patrolman carries a portable computer 1 as shown in FIG. 2 and patrols the area next to the substation according to a system to be described later. The portable calculator 1 also includes a screen 1a on which patrol items, calculation results of physical quantities, etc., which will be described later, are displayed, a key manual section 1b for inputting patrol data obtained from each device, and a human input section 1b for inputting patrol data obtained from each device. Communication interface IC for transmitting data to a computer (not shown)
is provided.

In addition, in the patrol inspection system of this embodiment, as shown in the flowchart of FIG. An instructing display is displayed. Following this instruction, the patrolman inputs the current outside temperature from the key human power section 1b (step A).

Next, when a display instructing the input of gas pressure data from the equipment to be patrolled, such as a GIS, is displayed, the patroller reads the gas pressure from the pressure gauge and inputs it (Step B
). Note that since the gas pressure changes due to the influence of the surroundings, it is managed using a value converted to density at 20°C. This gas density P at 20°C. (20) is determined by the following function using the outside temperature t and the gas pressure P.

Po (20)=f (t, P) Therefore, the outside temperature and gas pressure data input in steps A and B are applied to the function to calculate the gas density value (step C). This calculation result is displayed on the screen 1a of the portable calculator 1 (step D). Also,"
If data is to be input continuously for the two inspection items, return to step B and continue inspection/inspection.

Note that FIG. 3 shows a specific example of a screen display in the patrol inspection system according to the present invention.

That is, in response to step A in FIG. Various calculations are performed, and the gas density conversion value, which is the calculation result, is displayed on the screen. As described above, according to this embodiment, the gas density value is calculated from the outside temperature and gas pressure manually entered into the portable calculator during a patrol inspection, and the results are displayed on the screen. Since it is stored in the computer 1, there is no need to separately process the data collected by the patrol personnel, and it is possible to check whether there is an abnormality in gas pressure in the equipment being patrolled.
Immediate judgments can be made during patrols and inspections, and the efficiency of patrol inspection work is greatly improved.

Note that the present invention is not limited to the embodiments described above, and as shown in FIG. For example, the gas density value can be compared with a portable calculator of the same model that is performing patrol inspection work at other parts of the substation, through a communication interface IC provided in 1. (Step E). In addition, as shown in FIG. 5, after the gas density value is displayed on the screen la of the portable calculator 1 in step D, it can be compared with the previous patrol data stored in the portable calculator 1. It may be configured as follows (Step F). In either case,
Since the presence or absence of an abnormality can be determined accurately and quickly, a more accurate patrol inspection system can be obtained. Furthermore, as shown in FIG. 6, a temperature sensor 2 may be attached to the portable calculator 1, and the gas pressure value may be automatically converted into a gas density value at 20°C by simply inputting it manually. .

Further, in the above embodiment, the patrol inspection system of the present invention is applied to gas density conversion, but it goes without saying that it can also be applied to calculation of various physical quantities related to electric power equipment. Furthermore, by connecting a portable calculator to the second-place calculator,
It is also possible to compare and examine patrol data obtained from other types of portable computers.

[Effects of the Invention] As described below-1-, according to the present invention, a portable computer can be used to calculate a desired physical node based on a plurality of input data.
By configuring the system to calculate and display and store the results, work efficiency during patrol inspections can be improved, and calculations of various physical quantities, calculation results display, storage, etc. can be performed immediately at the time of inspection. , it is possible to provide a highly reliable patrol inspection system.

[Brief explanation of drawings]

FIG. 1 is a flowchart 1 showing one embodiment of the patrol inspection system of the present invention, FIG. 2 is a perspective view showing an example of a portable computer used in the patrol inspection system of the present invention, and FIG. 4 and 5 are flowcharts 1 and 5 showing another embodiment of the present invention, and FIG. 6 is a flowchart 1 showing another embodiment of the present invention. The perspective view shown in FIG. 7 is a plan view showing the configuration of a general substation. 1... Portable calculator, 1a... Screen, 1b... Key human power section, 1c... Communication interface, 2...
・Temperature sensor.

Claims (1)

[Claims] In a patrol inspection system that records substation patrol inspection data on a portable computer during on-site patrols, the portable computer calculates a desired physical quantity based on a plurality of input data, and displays and stores the results. A patrol inspection system that is characterized by: