JPH09196989A - On-site supporting tool for automatically testing static and dynamic characteristics of avr - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automate the on-site testing of AVR so as to improve the working efficiency as well as to save the man-power. SOLUTION: The on-site supporting tool for automatically testing the static and dynamic characteristics of an AVR(automatic voltage adjuster) 1 is provided with a personal computer 2 having a function to select testing kinds on the screen. In the static characteristic testing, the personal computer 2 inputs the corresponding signal from a test signal egberator 3 to PT and CT secondary input terminals 9 of the AVR 1 and records a data from output terminals 8 of the AVR 1, and in the dynamic characteristic testing, the personal computer 2 inputs specified signals from a power generator, etc., to the terminals 9 of the AVR 1, and records a data from the terminals 8 of the AVR 1, then in forms edition, the recorded data are edited to print out a form according to the edited data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic voltage regulator using a secondary output of a device constituting a control system of an electric power system, for example, PT / CT (herein referred to as P / CT). In the specification, the present invention relates to a control circuit characteristic test using P / CT including AVR) and a test device such as a protective relay. Especially, the static characteristic / dynamic characteristic of AVR suitable for start-up adjustment and maintenance / inspection on site. It relates to a local support tool for automatic characteristic testing.

[0002]

2. Description of the Related Art On-site tests such as AVR and other devices that compose a power control system during adjustment operation and regular inspection work are performed by manually operating a tester for static characteristic test and dynamic characteristic test, and measuring with a digital voltmeter. I was reading the value. These days,
The rationalization of data recording work is progressing with a dedicated simple data processing device. However, it is a reality that a field test tool including a static characteristic test function and a dynamic characteristic test function, which have even automated the secondary simulated input function of P / CT to the AVR, has not been realized.

[0003]

[Problems to be Solved by the Invention]
In the static characteristic test and dynamic characteristic test such as VR, a dedicated test apparatus is prepared respectively, and in the static characteristic test, a test signal is manually input and then the output of the control circuit of the AVR is measured. In this measurement, the control circuit of the AVR generally uses an operational amplifier or the like including an integrating circuit, and the measurement can be performed only after the output value of the operational amplifier or the like becomes stable. Since this stable time differs depending on the target test circuit due to the difference in the time lag of each circuit, it was necessary for the operator to confirm and read the measured value.

As described above, in the conventional on-site test, the judgment work of the worker is required, a lot of manual work is required, and duplicate work occurs, so that work efficiency is poor and a large manpower is required. An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a field support tool for automatic device test that automates the field test of AVR, improves work efficiency, and saves labor. It is in.

[0005]

In order to achieve the above object, the structure of the on-site support tool for automatic AVR test according to the present invention comprises a test signal generator for P / CT secondary input and a personal computer having a remote control function. In the field support tool for AVR static and dynamic characteristic automatic test consisting of and, the personal computer has a function to select static characteristic test, dynamic characteristic test, and form editing on the screen, and select the static characteristic test. if you did this,
A selectable multi-item test is displayed on the screen, a predetermined test is selected from the multi-item tests, and a signal corresponding to the test is selected.
A test signal generator for secondary CT input is input to the PT and / or secondary CT input terminal of the AVR, and a signal corresponding to the input signal is output from the output terminal of the AVR.
Data is recorded on the VR output signal through the insulation signal converter and the A / D converter, and when the dynamic characteristic test is selected, a selectable multi-item test is displayed on the screen, and a predetermined one of the multi-item tests is selected. A test is selected, a signal including a generator voltage is input to the PT and / or CT secondary input terminals of the AVR, a signal corresponding to the input signal is output from the output terminal of the AVR, and the AVR output signal is selected according to the test. Data is recorded at a predetermined sampling period and sampling time via an insulation signal converter and an A / D converter. When form editing is selected, the recorded static characteristic test data and dynamic characteristic test data are edited. It is characterized in that a print size range is selected according to the edited data and a form of a predetermined method can be printed.

In the on-site support tool for automatic static / dynamic characteristic testing of AVR described in the preceding paragraph, the A / V PT and / or CT is fed from the P / CT secondary input test signal generator.
Input the signal to the secondary input terminal to the signal corresponding to the above test and P.
The test signal generator for CT secondary input is compared with a generated signal, and when it is determined to be normal, it is performed, and when it is determined to be abnormal, the generation of the generated signal is canceled. Static characteristics of any AVR described in the previous section
In the on-site support tool for the dynamic characteristic automatic test, the personal computer is provided with a function of instantaneously returning the output of the test signal generator for secondary input of P / CT to 0 as a blocking function in an emergency. It is characterized by. In any of the field support tools for automatic static characteristic / dynamic characteristic test of AVR described in the preceding paragraph, data recording of the static characteristic test is acquired as a measurement value when the AVR output signal is within a predetermined number of times and within a predetermined range. It is characterized in that the acceptance measurement value is compared with a reference signal corresponding to the input signal, and a pass / fail judgment is made, and only if the result is acceptable. In any of the AVR static / dynamic characteristic automatic test site support tools of any of the preceding paragraphs, the personal computer displays the dynamic characteristic test data on a screen in a predetermined drawing area in a graph over time.
The display data density is changed by the whole display function and the enlarged display function. In the field support tool for AVR static and dynamic characteristic automatic test described in the preceding paragraph, the whole display function can change the vertical range from 0 to 100%, and the enlarged display function specifies the waveform change range and the enlarged display portion. , The start of enlargement and the vertical / horizontal range can be changed, and the number of samples determined from the sampling period and the display time,
It is characterized in that the comparison is performed with the number of dots on the time axis of the predetermined drawing area.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A field support tool for automatic static / dynamic characteristic (hereinafter referred to as characteristic) automatic test of an AVR according to the present invention will be described below with reference to FIGS. In the present embodiment, the case where the generator excitation test apparatus 3 is used as the test signal generator for P / CT secondary input will be described. However, both have the same configuration and the same function, and the former is a general name. , The latter is a trade name. FIG. 1 is a circuit diagram of a field support tool for automatic characteristic testing of AVR according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of test items of the field support tool for automatic characteristic testing of FIG. 3 is a data processing flowchart for the static characteristic test of the on-site characteristic tool for automatic characteristic testing of FIG. 1, and FIG. 4 is a data processing flowchart for the dynamic characteristic test of the on-site supporting tool for automatic characteristic testing of FIG. FIG. 5 is an explanatory diagram of a graph processing corresponding to the number of samples of the on-site tool for automatic characteristic test of FIG. 1, and FIG. 6 is an explanatory diagram of a measured value graph display and operation keys during the dynamic characteristic test of FIG.

The structure of the on-site support tool for automatic characteristic testing including the AVR 1 shown in FIG. 1 will be described. First, the A / D converter 5 is attached to the notebook computer 2 having the DOS / V function. The generator excitation tester 3 for generating an input signal to the AVR 1 incorporates a serial interface, for example, an RS-232C board,
It is connected to the notebook type personal computer 2 through a board for use. The voltage output and current output terminals of the generator excitation test apparatus 3 and the P.CT secondary input terminal circuit 9 of the AVR 1 are connected and wired.

On the other hand, the control circuit output measurement terminal (hereinafter referred to as the output measurement terminal) 8 of the control circuit 10 of the AVR 1 is a measurement lead wire connected to the output measurement terminal 8 and the COM terminal, and the input / output is The signal converters (hereinafter, referred to as isolated signal converters) 4 that are insulated from each other are connected. Furthermore, the isolated signal converter 4 and the notebook computer 2 are
It is connected via the / D converter 5. A printer 6 is connected to the notebook computer 2 to edit and output test data according to a desired method. As shown in the drawing, a power supply cable is connected to the notebook computer 2, the generator excitation test device 3, and the printer 6 from a cable drum connected to an outlet inside the test site to supply power. Has been done.

An explanation will be given with reference to the flow chart showing the processing procedure of the static characteristic test of FIG. 3 by the on-site support tool for automatic characteristic test having the above construction. First, prior to the test, a static property test among the static property test, the dynamic property test, and the form editing is selected from the menu screen of the notebook computer 2 by key operation. Then, in s101, the start key is pressed and the No. displayed in FIG. No. 1 to No. 1
No. 9 out of 9 The test is started by selecting the automatic system voltage detection characteristic (1). In addition, No. 2 to No. 2 It goes without saying that any item up to 19 may be selected.

In s102, when the notebook computer 2 receives the start key signal, the test conditions are set and confirmed. At s103, an automatic system voltage detection characteristic test screen is displayed on the notebook computer 2, and a test signal generation instruction signal is input to the generator excitation test apparatus 3. That is, the generator excitation test device 3 is instructed to output the test signal of the predetermined voltage in the range of 0 to 140V. In s104, the generator excitation test device 3 determines whether the test signal voltage is good or bad. If the result of the judgment is good, the output of the test signal is instructed. If the result of the judgment is negative, the characteristic test is terminated and the display of the abnormal measured value by the abnormal test is avoided. In s105, the output measurement terminal 8 of the control circuit 10 of the AVR 1 which receives the test signal is instructed to output the control signal corresponding to the test signal.

In s106, the notebook computer 2 sends an output command of the PT secondary voltage to the generator excitation test device 3 and then stabilizes the output of the PT secondary voltage from the generator excitation test device 3. Until the output is input to the PT secondary circuit, the output is output from the output measurement terminal 8 of the control circuit 10 of the AVR 1 and is stable, and the output of the output measurement terminal 8 after stabilization is the notebook type. PC 2
Calculates the total time until the capture and synchronizes the capture timing. The output signal of the output measurement terminal 8 corresponding to the test item is sampled at a predetermined cycle in synchronization with the fetch timing. Although the output measuring terminal 8 is omitted in the figure to be 6 terminals, in actuality, 40 or more terminals are provided, and input is taken in from the PT or CT of the generator or the system during the dynamic characteristic test. It has a terminal.

At s107, the signal output from the isolated signal converter 4 is output by the A / D converter 5 to, for example, 1 to 50.
Sampling is performed every msec. The sampling values are stored in time series in a dedicated buffer (not shown) of the A / D converter 5. The data of the dedicated buffer is written in the memory of the notebook type personal computer 2, and in order to secure the stability and reliability of the control output signal, it is determined whether or not the same value is repeated a predetermined number of times, for example, 5 times. The range of the same value is, for example, a range in which the maximum value and the minimum value are 2%.
That is, since the AVR control circuit has characteristics such as a time lag of the integrating circuit, it is necessary to confirm that the output value is stable, and the AVR control circuit is almost the same as the above for a predetermined number of times, for example, five times. When the value is written, it is used as the settling value. In s108, the data written in the memory of the notebook computer 2 is corrected by setting the range, the magnification, etc. for each static characteristic test item, and the preset reference value is compared with the sampling value to determine whether the result is acceptable or not. To do.

In s109, if the above judgment is successful, the data is stored in a data table containing a number of data. If the determination is unsuccessful, the process returns to s102, the test conditions for the test items are reset, and the series of processes described above is repeated. In this case, it is determined whether the test conditions should be reset or the entire circuit is defective. At s110, it is checked whether the static characteristic test item has been completed. If the test items are not completed, the process returns to s103. When the test item is completed, the process proceeds to the next s111. In s111, the sampled value of the data is displayed, and the test ends.
In this way, the sampled value is corrected for each test item to enhance reliability and display. Next, although not displayed in the flow chart, when edit is selected from the menu screen of the notebook computer 2, the screen display is performed and, for example, a required form print size is selected, and the form is automatically edited according to a predetermined method. It is printed as a form.

When the test signal is determined to be abnormal in s104, the cancel signal from the notebook computer 2 causes the P.CT of the generator excitation test device 3 to be detected.
The output of the secondary voltage and secondary current is instantly returned to 0, and the output is locked. In this case, the static characteristic test is interrupted, the same state as the end of the test item is reached, and the inspection by the abnormal display of the test signal becomes possible.

Next, the dynamic characteristic test by the on-site support device for automatic characteristic test will be described with reference to the flowchart showing the processing procedure of the dynamic characteristic test in FIG. First, in s201, a dynamic characteristic test is selected by key operation from the menu screen of the notebook computer 2. No. displayed in FIG. The dynamic characteristic test items from 1 to No. 6 are displayed, and the test item to be implemented is selected. And
Operate the start key. Next, in s202, when the notebook computer 2 receives the start key signal, the generator excitation test device 3 and the AVR P / CT secondary input terminal 9 are disconnected, and the generator and its system are disconnected. Connection is made, and test conditions are selected and confirmed. Then, s
In 203, the notebook personal computer 2 directly takes in the generator voltage / current, the field breaker closing signal, the field voltage / current, etc. from the generator or its system according to the selected test condition, and the AVR P -The output signal of the target test circuit which is input to the CT secondary input terminal 9 and responds to the input signal,
After the acquisition command from the output signal measurement terminal 8, sampling is performed by the A / D converter, and for example, sampling cycle 1 to
Simultaneous capture is performed with 50 msec, a sampling time of 10 to 300 seconds and a maximum of 8 channels, stored in the A / D converter dedicated buffer, written in the memory of the notebook computer 2 and temporarily stored. Next, in s204, the notebook computer 2 horizontally scrolls and online displays the data stored on the screen. Next, in s205, the notebook computer 2 determines the predetermined sampling time (10 to 3) set by the operator.
00 sec) can be set), that is, this measured value determined in time series is acquired, and whether or not the amount corresponding to the screen drawing interval on the notebook computer 2 has been executed is determined. If it has not been executed, the process returns to s203 and the sampling is executed repeatedly. Next, in s206, if the determination is good, the measured values are stored in time series in a table having a structure containing data. This time-series measurement value becomes a part of the dynamic characteristic test data. Next, s20
In 7, the selected test conditions and the number of samples are calculated, displayed and printed on the screen, and the process ends.

Next, the display of the dynamic characteristic test data according to the number of samplings will be described with reference to FIG. FIG. 5 (a)
Is a display flow chart of dynamic characteristic test data, and (b) is a dot number display diagram on the time axis of a predetermined drawing area, in which a horizontal dot number (H) 400 and a vertical dot number (L) 200 are set. This designated area can be set for each display screen of the test item, but the drawing range is often fixed in a notebook computer or the like. In s301, when the dynamic characteristic test data is displayed as a graph on the screen of a predetermined drawing area on the notebook computer 2 with a time transition, the number of samples (N) is determined from the sampling period and the display time.
In s302, the number of horizontal dots (H) and the number of samples (N) are compared, and when the number of samples (N) is large, the process proceeds to s303, and when the number of samples (N) is small, the process proceeds to s304. To do. In s303, when the sample number (N) is large, all horizontal dot numbers (H) are drawn for each sample number (N) / horizontal dot number (H). In s304, the number of horizontal dots (H) /
All the sample numbers (N) are drawn for each dot of the sample number (N).

As described above, when the sampling cycle is changed, the display data is changed and displayed based on the relationship with the number of dots on the time axis of the predetermined drawing area. That is, since it is possible to display a graph according to the number of samples in the same drawing area and the whole display or the partial enlarged display is performed in the same drawing range, in the case of the partial enlarged display, the normal partial display of the whole display is performed. Unlike enlargement, the display time is shortened and the number of samples per display time is increased, so that there is a function that facilitates detailed identification of details.

The graph display of the dynamic characteristic test and the operation of the operation keys will be described with reference to FIG. In Fig. 6, in the drawing area of the screen, for generator voltage, field voltage, field current, etc. from channel 1 to channel 8, etc., click the □ mark and click to display a × in the □ mark by the display command.
The mark is displayed and the corresponding signal is displayed on the screen. Further, the operation keys at the bottom determine START, enlarged display, whole display, waveform latency change for vertical / horizontal range change, normal / abnormal of the test signal for AVR, and if abnormal, generator excitation voltage device 3 Output of 0
It has a cancel key that instantly returns to, an edit / print key that selects the required form print size and automatically edits it, and prints it as a form, and a stop key that stops the test. On the screen shown in the figure, the generator voltage rise state after the field breaker has been turned on is partially enlarged, so the enlargement display key is clicked.

The state of this screen is 2 minutes (120 seconds) after the start of the test by selecting the enlarged display of the screen of the automatic system voltage establishment test in the dynamic characteristic test of the AVR measured for the measurement time of 5 minutes.
Is displayed at a timing of 1.0 second. Although 6 signals are selectively displayed on the screen, it goes without saying that 8 signals can be simultaneously displayed. When testing with a sampling period of 50 ms, 20 data are read per second, so 5
6000 pieces of data are displayed on the screen of 400 dots per minute. Therefore, in the whole display, data is drawn every 15 data, but in the enlargement screen, the enlargement is specified at the timing of 1.0 seconds from 120 seconds after the display start time is set, so that the screen has 12 timing lines. Since it is pulled, an enlarged display for 120 to 132 seconds is displayed on the 400-dot screen of all samples of 240 data.

Further, when the display time is shortened, the number of displayed samples is the same and the display is expanded in the horizontal direction. In the case of the enlarged partial display, unlike the partial enlargement of the entire display, the display time is shortened and the display time is shortened. The increased number of samples per hit facilitates detailed identification of details. Also, after the online display by horizontal scrolling as in the above screen, the site name and machine number NO. It is possible to display required dimensions such as maximum value of voltage / current value, stable value, and timing. Further, in the whole display function, the display start point of the read signal can be changed in the range of 0 to 100% of the vertical range, and the display width can be set within the set upper and lower limits in this range. Further, the enlargement display function can determine the display start time, that is, the display start time, and can change the horizontal range by changing the setting and the timing by setting 0 to 100% of the vertical range of the display start point. It goes without saying that these functions can also be used when loading data after saving data to the disk device.

As described above, in the present embodiment, the entire process of the AVR characteristic test including the instruction of the test signal generation and the confirmation of the settling can be automated, so that the man-hour of the on-site test can be greatly reduced and the test input signal can be reduced. The quality is judged and the AV
Since the input to R can be canceled, the safety of AVR and the test can be secured and human error can be prevented. In addition, the notebook computer 2 has AUTO / MANUL /
Exclude 3POSION, AUTO is fully automatic, MA
NUL manually operates the generator excitation test device 3 to
The output of the output measuring terminal 8 of the AVR 1 can be automatically measured, stored, and edited by applying the P / CT secondary input of R. Exclusions are all manual, but when each test item is displayed on the screen, it can be automatically edited by manual key input of measurement values. Also,
In both static and dynamic characteristics tests, the entire function and enlarged display function can be used in the same manner as above even after data storage and data loading on a personal computer hard disk or floppy disk.

Example 1 A specific configuration example of the above embodiment will be described with reference to FIG. In FIG. 1, the notebook computer 2 has 5.5 kg, the generator excitation test device has 22 kg, and the insulation signal converter has 7.5 kg.
The local support tool for automatic characteristic testing can be carried in and wired by one worker, and it is small and portable. As shown in the figure, the AVR P / CT secondary input tester, that is, the generator excitation tester 3 has a PT secondary voltage of 0 to 150 V, CT.
Since the secondary current 0 to 8 A and the current phase with respect to the voltage can be changed by 360 degrees, the interface RS-232C board 7 is incorporated in the secondary current to control it from the notebook computer 2, and in an emergency, It has a circuit configuration that can be shut off by pressing the cancel key on the screen.

On the other hand, the output signal 8 of the control circuit of the AVR takes in the generator voltage / current, the field voltage / current, the operational amplifier output, etc. by using the insulation signal converter 4, and 0 to ±± for the A / D converter correspondence. Convert to 5VDC. The withstand voltage of the insulation signal converter 4 is 1500 V / 1 minute. A /
The D converter 5 is 1 MHZ, 12 bits and is built in the notebook computer 2. Also, even in an environment where the mouse cannot be used locally, you can use the keys on the keyboard to move and confirm with the return key.

After commanding the interface RS-232C,
It takes a predetermined time, for example, 2 seconds, until the output of the generator excitation test device 3 stabilizes, and the capture time after the output is stabilized from the output measurement terminal 8 of the AVR is automatically calculated for each characteristic test. Equipped with a sampling period of ~ 50msec, if the same captured value is captured 5 times in a row, it will be secured as a stable value, the reliability of import accuracy will be improved, and the measured value will be rounded off to 3 decimal places, The accuracy is F of the fetched value of the A / D converter 5.
When S is ± 10 V, the error is 0.0049 V or less, and the taken value with respect to the reference value is automatically judged to be pass / fail, and displayed, and the curve graph and the like are also displayed automatically, and automatic editing / form printing can be performed.

According to this embodiment, everything from the generation of the test signal to the sampling and output of the measured values and the calculation of the test conditions can be automated, and the manpower and work time of the on-site test at the time of start-up and regular inspection can be greatly increased. It can be reduced. Further, since the quality of the test signal is automatically determined, there is no fear of applying an abnormal signal to the actual machine and causing an accident. Furthermore, since the settling of the output signal from the AVR is automatically determined, the measurement error can be reduced and the test accuracy can be improved. As a specific comparative example of this example and the conventional example, the test time was reduced from 16HR to 11HR, the data reduction time was reduced from 5HR to 2HR, and the man-hour was reduced by 38%.

[0027]

As described above, according to the constitution of the present invention, A
By automating the static and dynamic characteristics tests of VR on site, there is an effect that automatic editing of data and reduction of forms, and preventive maintenance by centralized management of data by connecting to LAN. In addition, a curve graph or the like is also represented as an automatic operation, and there is an effect that the quality can be maintained by automatically determining the quality of the measurement data. Further, the graph display of the data is automatically displayed according to the sampling cycle to enable high density display, and there is an effect that the test result can be easily identified and examined. In addition, the work efficiency can be improved and the labor can be saved, and the test time and the data reduction time can be greatly shortened as compared with the conventional one, and the man-hours can be reduced.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a field support tool for automatic characteristic testing of AVR according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of test items of the on-site support tool for automatic characteristic testing of FIG.

FIG. 3 is a data processing flow chart at the time of static characteristic test of the field support tool for automatic characteristic test of FIG.

4 is a data processing flowchart at the time of a dynamic characteristic test of the field support tool for automatic characteristic test of FIG.

FIG. 5 is an explanatory diagram of graph processing corresponding to the number of samples of the local support tool for automatic characteristic testing of FIG. 1;

FIG. 6 is an explanatory diagram of a measured value graph display and operation keys during the dynamic characteristic test of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... AVR, 2 ... Notebook type personal computer, 3 ... Generator excitation test device, 4 ... Insulation signal conversion device, 5 ... A / D converter, 6 ... Printer, 7 ... RS-232C board, 8 ...
AVR control circuit output measurement terminal, 9 ... AVR P / CT secondary input terminal, 10 ... AVR control circuit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H02P 9/00 H02P 9/00 B 9/14 9/14 D

Claims (6)

[Claims] 1. A field support tool for automatic static / dynamic characteristic testing of an AVR comprising a test signal generator for P / CT secondary input and a personal computer having a remote control function, wherein the personal computer is displayed on a screen. It has a function to select static characteristic test, dynamic characteristic test, and form edit. When the static characteristic test is selected, a selectable multi-item test is displayed on the screen and a predetermined test is selected from the multi-item tests. Then, a signal corresponding to the test is input from the P / CT secondary input test signal generator to the PT and / or CT secondary input terminal of the AVR, and a signal corresponding to the input signal is AVR.
Output from the output terminal of the AVR, the AVR output signal is recorded via an insulation signal converter and an A / D converter, and when a dynamic characteristic test is selected, a selectable multi-item test is displayed on the screen. A predetermined test is selected from the multi-item tests, and a signal including a generator voltage is sent to the AVR P according to the test.
A signal corresponding to the input signal is output from the output terminal of the AVR, and the AVR output signal is output through the isolation signal converter and the A / D converter for a predetermined sampling period, When data is recorded at the sampling time and form editing is selected, the static characteristic test data and dynamic characteristic test data that have been recorded are edited and the print size range according to the edited data is selected and specified. A field support tool for automatic testing of static and dynamic characteristics of AVR, which is characterized in that it is possible to print a form document. 2. The local support tool for automatic static / dynamic characteristic testing of an AVR according to claim 1, wherein the test signal generator for P / CT secondary input is connected to the PT and / or CT secondary input terminal of the AVR. Is input when it is determined to be normal by comparing the signal according to the test with the signal generated from the test signal generator for P / CT secondary input, and when it is determined to be abnormal, the generation of the signal is stopped. A field support tool for automatic testing of static and dynamic characteristics of AVR. 3. The on-site support tool for an automatic static characteristic / dynamic characteristic test of an AVR according to claim 1, wherein the data recording of the static characteristic test is performed within a predetermined number of times by the AVR output signal. When it is, the AVR static and dynamic characteristics automatic test is characterized in that it is acquired as a measurement value, and the acceptance measurement value is compared with a reference signal corresponding to the input signal to make a pass / fail judgment, and only when the result is passed. Local support tool. 4. The AV according to claim 1, 2, or 3.
In the local support tool for the automatic static / dynamic characteristic test of R, the PC has the PC / PC function as an emergency shutoff function.
The secondary output of the test signal generator for secondary input is instantly returned to zero and locked.
A local support tool for automatic VR static and dynamic testing. 5. The AVR static / dynamic characteristic automatic test site support tool according to claim 1, wherein the personal computer displays the dynamic characteristic test data on a screen in a predetermined drawing area. A field support tool for automatic testing of static and dynamic characteristics of AVR, characterized in that the display data density is changed by an overall display function and an enlarged display function by displaying a graph with time transition. 6. The on-site support tool for automatic static / dynamic characteristic testing of an AVR according to claim 5, wherein the entire display function is capable of changing the vertical range from 0 to 100%, and the enlarged display function is an enlarged display portion. Is specified so that the vertical and horizontal ranges can be changed at the start of enlargement, and the number of samples determined from the sampling period and the display time is compared with the number of dots on the time axis of the predetermined drawing area. A field support tool for automatic testing of static and dynamic characteristics of AVR.