JP3063449U - Failure point locator using data from transmission line failure point locator and accident section locator - Google Patents

Abstract

(57) [Summary] [Problem] Since a locator for locating an accident point on a transmission line and an accident memo for locating an accident section are individually located, they may not be accurate. [Solution] The locator and the signal of the accident report are collected in one place and comprehensively located.

Description

[Detailed description of the invention]

[Technical field to which the present invention pertains] The present invention uses a combination of a device for locating a fault point of a transmission line of an electric power company and a device for locating an accident section.

2. Description of the Related Art A conventional transmission line fault locator (hereinafter, referred to as a locator) and a transmission line fault section locating device (hereinafter, referred to as an accident transmission) are used separately to complement the advantages and disadvantages of both. I couldn't do that.

[Problem to be Solved by the Invention] Although a locator can locate a failure point, it has the following disadvantages. 1. It is not possible to locate multiple accidents across both lines, or the error becomes extremely large. 2. If there are many branches, it cannot be determined which of the two branches is the accident. Therefore, two points or three points are set. 4. With a pulse-type locator, if the location contains noise or an imperfect ground fault, etc., the pulse may be disturbed, irregularly reflected due to branching, etc., or a multi-tone pulse may be taken as a signal, causing a complete failure of the location. is there.

In the accident report, the orientation is stable, but only the section can be located.

In the present invention, since the two devices were conventionally used independently and could not compensate for each other's disadvantages, a program was developed in which data were collected in one place, and the advantages of both devices were taken to compensate for the disadvantages. It is intended to provide a device with less failures and errors.

[Means for Solving the Problem] (1) The locator collects accident data in one place. 2. Both are oriented by the conventional method. 3. If the control point coincides with the control section, this is displayed as it is. 4. If an obvious mistake is detected in either of the data, the orientation result of the one without the error is displayed, and if necessary, the data and orientation result of the mistake can be viewed by operation. 5. When two or more locators are located, one of them is selected and displayed according to the accident report data. 6. In the case of an accident that cannot be located by the locator, only the accident transmission is located. The problem is solved by using the above six items.

[Embodiment of the Invention] An embodiment of the invention will be described with reference to the drawings. FIG. 1 shows locators R1, R2. This is an example in which accidents D1 and D2 are attached. As shown in this figure, the office OF collects data from all locators and accident reports by signals S1, S2, S3 and S4. The collected signals are analyzed and displayed on a personal computer by the means described in the section of the means for solving the problem.

FIG. 2 shows an example in which a line has many branches. In such a case, even if only the signals of locators R1 and R2 are collected and analyzed at one place, it is difficult to determine the accident point beyond the branch, and even if it can be determined, the answer is 2-3. It may come out in several places, and depending on the open state of the circuit breaker in the substation, the value may be quite irrelevant.

As a method for compensating for this, if the analysis is performed together with the data of the accident transmissions D1, D2, D3, D4, and D5, information on the opening state of the circuit breaker and the location of the accident section can be obtained. The more accurate orientation results can be obtained by means of the six items described in the section of the means. Locators R1 and R2 do not analyze data at the substation, but transmit only data to office OF.

[0010] Therefore, in the case of the fault current breaking type locator instead of the pulse type locator, the contents of the locator and the fault transmission are almost the same, and only the detector is different. In other words, the locator penetrates a through-type current transformer through the current-carrying line in the switchboard to detect the current, and the transformer detects the voltage. Detect and detect the voltage with the electric stick.

[Effect of the Invention] Compared to the case where the locator and the accident message are used alone,

When one of the devices fails or good data cannot be obtained, the orientation result of the other device can be used.

It is possible to correct the locator at two or three places or to be erratic due to unexpected opening of the branch or the breaker by using the data of the accident and correct the accident point.

[0012]

[Submission date] March 26, 1999

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Detailed explanation of the device

[Correction method] Change

[Correction contents]

 [Effects of the Invention] Compared to the case where the locator and the accident message are used alone, when one of the devices breaks down or good data cannot be obtained, the orientation result of the other device can be used.

It is possible to correct the location of the locator in two or three places or to be confused by unexpected opening of the branch or the circuit breaker by using the data of the accident, and to locate the correct accident point.

[0013]

[Brief description of the drawings]

[Submission date] June 21, 1999

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Detailed explanation of the device

[Correction method] Change

[Correction contents] [Detailed description of the invention]

[Technical field to which the present invention belongs] The present invention uses a combination of a device for locating a fault point of a transmission line of an electric power company and a device for locating an accident section.

2. Description of the Related Art Conventionally, a fault locating device (hereinafter, referred to as a locator) for a transmission line and an accident section locating device (hereinafter, referred to as an accident transmission) for a transmission line are used separately. I could not compensate.

[Problems to be Solved by the Invention] A locator can locate a fault point, but has the following disadvantages: 1. Multiple faults cannot be located across both lines, or the error becomes extremely large. 2. If there are many branches, it cannot be determined which of the two branches is the accident. Therefore, two points are set and three points are set. 4. With the pulse-type locator, if the location contains noise or imperfect ground fault, etc., the pulse is disturbed, irregularly reflected at the branch, etc., and the pulse of multiple lightning is taken as a signal, and the location fails completely. May be.

[0004] In the accident report, the orientation is stable, but only the section can be located.

[0005] Since the present invention has conventionally used both of them independently and could not compensate for each other's disadvantages, a program that collects data in one place, takes advantage of both, and compensates for disadvantages has been developed. It is intended to make a device with less failures and errors.

[Means for Solving the Problem] (1) Collect locator and accident report data in one place. 2. Both perform orientation by the method according to the conventional manner. 3. If the control point coincides with the control section, this is displayed as it is. 4. If an obvious mistake is detected in either data, the orientation result of either one is displayed, and if necessary, the data and orientation results of the mistake can be viewed by operation. It can be so. 5. When two or more locators are located, one of them is selected and displayed according to the accident report data. 6. In the case of an accident whose conditions cannot be located by the locator, only the accident report is located. The problem is solved by using the above six items.

[Embodiment of the Invention] An embodiment of the invention will be described with reference to the drawings. FIG. 1 shows an example in which locators R1, R2 and accident transmissions D1, D2 are attached to the simplest two-line transmission line. As shown in this figure, data from all locators and accidents are collected in the office OF by signals S1, S2, S3 and S4. The collected signals are disassembled by a personal computer using the means described in the section on means for solving the problem, and displayed.

FIG. 2 shows an example in which a line has many branches. In such a case, if only the signals of locators R1 and R2 are collected in one place and disassembled, it is difficult to determine the accident point beyond the branch. Even if the decision can be made, the answer is 2-3. Depending on the location of the substation or the open condition of the substation or the breaker, the value may be quite random.

As a method for compensating for this, by dismantling together with the accident data D1, D2, D3, D4, and D5, it is possible to obtain information on the opening status of the shiya breaker and the location of the accident section. By the means of the six items described in the section of the means for solving the problem, a more accurate identification result can be obtained. Locators R1 and R2 do not dismantle the data at the substation and transmit only the data to the office OF.

[0010] Therefore, in the case of a locator of the fault current breaking type instead of the pulse type locator, the contents of the locator and the fault transmission are almost the same, and only the locator is different. That is, the locator penetrates a through-type current transformer through the current-carrying line in the switchboard to extract the current, and extracts the voltage with the transformer. Produce a voltage, and produce a voltage with a carbon rod.

[Effect of the Invention] Compared to the case where the locator and the accident report are used alone, when one of the devices breaks down or good data cannot be obtained, the orientation result of the other device is used. be able to.

[0012] It is possible to correct the location of the locator to two or three places or to be erratic due to the unexpected opening of the branch or the breaker by using the data of the accident, and to locate the correct accident point. .

[0013]

[Brief description of the drawings]

FIG. 1 is a wiring diagram in which a locator and an accident message are attached to a two-circuit transmission line.

FIG. 2 is a wiring diagram in which a locator and an accident message are attached to a transmission line that has particularly many branches in a two-circuit transmission line.

[Explanation of symbols]

 R1, R2 Locator D1, D2, D3, D4, D5 Accident transmission E1, E2, E3, E4, Substation NGR Neutral ground resistance OF office S1, S2, S3, S4 Signal.

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[Procedure amendment]

[Submission date] March 26, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (1)

[Utility model registration claims] 1. Collecting data of a transmission line fault point locating device and data of an accident section locating device at one place, and locating a fault point and a fault section for each of them. 2. If either of the data is found to be missing or incorrect as a result of self-orientation, discard unreliable results. 3. When all data are reliable, if both orientations are different, display both. 4. In a transmission line with many branches, the fault point is determined to be both branches. At this time, either one of the data of the fault section locating device should be selected, and the fault point should be selected and displayed. A fault point locating device using data of a transmission line fault locating device and an accident section locating device that uses the above four items simultaneously.