CN110261724B - Voltage time type feeder automation test method - Google Patents
Voltage time type feeder automation test method Download PDFInfo
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- CN110261724B CN110261724B CN201910514977.8A CN201910514977A CN110261724B CN 110261724 B CN110261724 B CN 110261724B CN 201910514977 A CN201910514977 A CN 201910514977A CN 110261724 B CN110261724 B CN 110261724B
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- time type
- feeder terminal
- type logic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
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Abstract
The invention discloses a voltage time type feeder automation test method, which relates to the field of distribution automation and comprises a voltage time type logic tester, a feeder terminal 1, a feeder terminal 2, a feeder terminal 3, a switch 1, a switch 2 and a switch 3. An alternating voltage output interface 1 of the voltage time type logic tester is connected with a power supply side of a switch 1, an alternating voltage output interface 2 of the voltage time type logic tester is connected with a load side of a switch 3, and the switch positions of the switch 1, the switch 2 and the switch 3 are connected with a switch position interface of the voltage time type logic tester. The voltage time type logic tester controls the alternating voltage output of the alternating voltage output interface 1 and the alternating voltage output interface 2, and judges whether the action of the feeder line terminal is correct or not according to the switch position collection.
Description
Technical Field
The invention relates to the field of distribution automation, in particular to a voltage time type feeder automation test method.
Background
A Feeder Terminal (FTU) is an interface for connecting a distribution automation system and primary equipment, is suitable for measuring and controlling 1-2 loops of lines at a subsection point or a contact point of a 10kV overhead distribution line, and is matched with a load switch or a circuit breaker on a column to realize remote control and automatic management. The power distribution network line post-up switch is communicated with a power distribution automation system main station, the running state of the post-up switch in the power distribution network line is monitored and controlled, and the functions of fault positioning and isolation of the power distribution network line, power restoration of a non-fault area and the like are achieved.
The voltage time type feeder automation construction mode has the advantages of simplicity, reliability, independence of communication, low construction cost and the like, and is widely applied to overhead line power distribution automation transformation and construction. However, with the development of large-scale integrated circuits and embedded technologies, the functions of feeder terminals become more and more complex, and multiple feeder automation functions are integrated in one device by a device manufacturer, so that the voltage time type parameter configuration becomes complicated, which may occur when the voltage time type feeder automation equipment cannot correctly isolate a fault condition due to incorrect or incomplete parameter configuration. It is necessary to test the function of such devices before they are put into operation to verify the correctness and integrity of the function. At present, a test verification tool for the voltage time type feeder automation function of the equipment is lacked.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme:
a voltage time type feeder automatic test method comprises the following steps:
s1, equipment connection: interconnecting the switch 1 with the feeder terminal 1; interconnecting the switch 2 with the feeder terminal 2; interconnecting the switch 3 with the feeder terminal 3;
the power supply side of the switch 1 is connected with an alternating voltage output interface 1 on the voltage time type logic tester; the load side of the switch 1 is connected with the power supply side of the switch 2; the load of the switch 2 is connected with the power supply side of the switch 3, and the load side of the switch 3 is connected with the alternating voltage output interface 2 on the voltage time type logic tester;
the end of the switch position 1 of the feeder terminal 1, the end of the switch position 2 of the feeder terminal 2 and the end of the switch position 3 of the feeder terminal 3 are respectively connected with a switch position interface on the voltage time type logic tester;
s2, configuration switch: configuring the switch 1 and the switch 2 to a segmented mode; configuring the switch 3 in a tie mode;
s3, simultaneously outputting alternating voltage by an alternating voltage output interface 1 on the voltage time type logic tester and an alternating voltage output interface 2 on the voltage time type logic tester, and waiting for 10 seconds after the switch 1 and the switch 2 are automatically switched on;
s4, stopping the output of the alternating voltage output interface 1 on the voltage time type logic tester, and then waiting for 5 seconds;
s5, the alternating voltage output interface 1 on the voltage time type logic tester outputs alternating voltage again, the alternating voltage output of the alternating voltage output interface 1 on the voltage time type logic tester is stopped again after the switch 1 is switched on, and then the time is waited for 5 seconds;
s6, outputting the alternating voltage again by the alternating voltage output interface 1 on the voltage time type logic tester, and waiting for 45 seconds;
and S7, acquiring the states of the switch 1, the switch 2 and the switch 3 from a switch position interface on the voltage time type logic tester, wherein if the switch 1 and the switch 2 are in an opening state and the switch 3 is in a closing state, the test is passed, otherwise, the test is not passed.
Preferably, in the step S1, the switch 1 is connected to the feeder terminal 1, the control terminal of the switch 1 is connected to the control terminal of the feeder terminal 1, and the signal terminal of the switch 1 is connected to the detection terminal of the feeder terminal 1;
the switch 2 is connected with the feeder terminal 2, the control end of the switch 2 is connected with the control end of the feeder terminal 2, and the signal end of the switch 2 is connected with the detection end of the feeder terminal 2;
the switch 3 is connected with the feeder terminal 3, the control end of the switch 3 is connected with the control end of the feeder terminal 3, and the signal end of the switch 3 is connected with the detection end of the feeder terminal 3.
Preferably, the voltage time type logic tester is a device capable of outputting two paths of alternating voltages and having a switch position interface acquisition function.
The method provided by the invention has the advantages of simple wiring, concise steps and convenience for mastering, and can well solve the problem that the voltage time type feeder automatic switching equipment cannot correctly isolate the fault due to incorrect or incomplete parameter configuration.
Drawings
Fig. 1 is a schematic diagram of the wiring principle provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to fig. 1 of the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
A voltage time type feeder automatic test method comprises the following steps:
step 1, connecting equipment, as shown in fig. 1:
firstly, a switch 1 and a feeder terminal 1 are connected with each other; interconnecting the switch 2 with the feeder terminal 2; the switch 3 and the feeder terminal 3 are interconnected. Specifically, the switch 1 is connected to the feeder terminal 1, the control end of the switch 1 is connected to the control end of the feeder terminal 1, and the signal end of the switch 1 is connected to the detection end of the feeder terminal 1. The switch 2 is connected with the feeder terminal 2, the control end of the switch 2 is connected with the control end of the feeder terminal 2, and the signal end of the switch 2 is connected with the detection end of the feeder terminal 2. The switch 3 is connected with the feeder terminal 3, the control end comprising the switch 3 is connected with the control end of the feeder terminal 3, and the signal end of the switch 3 is respectively connected with the detection end of the feeder terminal 3. The connection of the switch and the feeder terminal is the same as the existing connection mode, and no special place is provided.
The power supply side of the switch 1 is connected with an alternating voltage output interface 1 on the voltage time type logic tester; the load side of the switch 1 is connected with the power supply side of the switch 2; the load of the switch 2 is connected with the power supply side of the switch 3, and the load side of the switch 3 is connected with the alternating voltage output interface 2 on the voltage time type logic tester.
And the end of the switch position 1 of the feeder terminal 1, the end of the switch position 2 of the feeder terminal 2 and the end of the switch position 3 of the feeder terminal 3 are respectively connected with a switch position interface on the voltage time type logic tester.
The voltage time type logic tester is a device which can output two paths of alternating voltages and has a switch position interface acquisition function, or a relay protection tester is adopted to replace the device.
Step 2, configuring a switch: after connecting the wires, configuring the switch 1 and the switch 2 into a segmented mode; the switch 3 is configured in the tie mode.
And 3, simultaneously outputting alternating voltage by the alternating voltage output interface 1 on the voltage time type logic tester and the alternating voltage output interface 2 on the voltage time type logic tester, and waiting for 10 seconds after the switch 1 and the switch 2 are automatically switched on. The waiting time of 10S is mainly used for avoiding the Y time limit for starting timing after the feeder terminal control switch is switched on. The Y time limit is typically 5S.
And 4, stopping the output of the alternating voltage output interface 1 on the voltage time type logic tester, and then waiting for 5 seconds. The alternating voltage output interface 1 waits for 5 seconds and then outputs the alternating voltage, and mainly simulates the coincidence time of the circuit breaker at the outlet of the transformer substation, which is generally 5 seconds.
And 5, outputting the alternating voltage again by the alternating voltage output interface 1 on the voltage time type logic tester, stopping outputting the alternating voltage of the alternating voltage output interface 1 on the voltage time type logic tester again after the switch 1 is switched on, and then waiting for 5 seconds. After the output of the alternating current output interface 1 is stopped, the feeder line terminal can control the switch to trip due to the voltage loss of the power supply side and the load side of the switch 1 and the switch 2.
And 6, outputting the alternating voltage again by the alternating voltage output interface 1 on the voltage time type logic tester, and waiting for 45 seconds. After the alternating voltage is output again, the switch 1 loses voltage and is switched off because the alternating voltage output interface 1 stops outputting after the switch is switched on in the step 5, and the power supply side is switched on and switched off because the timing after the switch is switched on is less than Y time limit (5S). In step 6, the ac voltage output interface 1 again outputs an ac voltage which will not switch on. And the power supply side of the switch 2 can form a locking signal for locking the load side to be electrically switched on due to the fact that the pulse signal is detected in the switching-on and switching-off processes of the switch 1 in the step 5. Because the single-side of the interconnection switch loses voltage and is switched off, the interconnection switch can be automatically switched on after 45 seconds. The switch 2 is not switched on due to the existence of the locking signal, and the fault between the switch 1 and the switch 2 is isolated.
And 7, acquiring states of the switch 1, the switch 2 and the switch 3 from a switch position interface on the voltage time type logic tester, if the switch 1 and the switch 2 are in an opening state and the switch 3 is in a closing state, passing the test, otherwise, failing to pass the test. The voltage time type logic tester collects the switch position signal and displays the signal on a human-computer interaction interface (a liquid crystal display screen) by judging the positions of the switches 1-3. If a relay protection tester is adopted, the testing result can be judged by observing the opening condition of the switches 1-3 and the locking signals of the feeder terminals 1 and 2 by people.
Claims (3)
1. A voltage time type feeder automatic test method is characterized by comprising the following steps:
s1, equipment connection: interconnecting the switch 1 with the feeder terminal 1; interconnecting the switch 2 with the feeder terminal 2; interconnecting the switch 3 with the feeder terminal 3;
the power supply side of the switch 1 is connected with an alternating voltage output interface 1 on the voltage time type logic tester; the load side of the switch 1 is connected with the power supply side of the switch 2; the load side of the switch 2 is connected with the power supply side of the switch 3, and the load side of the switch 3 is connected with an alternating voltage output interface 2 on the voltage time type logic tester;
the end of the switch position 1 of the feeder terminal 1, the end of the switch position 2 of the feeder terminal 2 and the end of the switch position 3 of the feeder terminal 3 are respectively connected with a switch position interface on the voltage time type logic tester;
s2, configuration switch: configuring the switch 1 and the switch 2 to a segmented mode; configuring the switch 3 in a tie mode;
s3, simultaneously outputting alternating voltage by an alternating voltage output interface 1 on the voltage time type logic tester and an alternating voltage output interface 2 on the voltage time type logic tester, and waiting for 10 seconds after the switch 1 and the switch 2 are automatically switched on;
s4, stopping the output of the alternating voltage output interface 1 on the voltage time type logic tester, and then waiting for 5 seconds;
s5, the alternating voltage output interface 1 on the voltage time type logic tester outputs alternating voltage again, the alternating voltage output of the alternating voltage output interface 1 on the voltage time type logic tester is stopped again after the switch 1 is switched on, and then the time is waited for 5 seconds;
s6, outputting the alternating voltage again by the alternating voltage output interface 1 on the voltage time type logic tester, and waiting for 45 seconds;
and S7, acquiring the states of the switch 1, the switch 2 and the switch 3 from a switch position interface on the voltage time type logic tester, wherein if the switch 1 and the switch 2 are in an opening state and the switch 3 is in a closing state, the test is passed, otherwise, the test is not passed.
2. The automated voltage-time feeder test method of claim 1, wherein:
step S1, connecting the switch 1 and the feeder terminal 1, where the control end of the switch 1 is connected to the control end of the feeder terminal 1, and the signal end of the switch 1 is connected to the detection end of the feeder terminal 1;
the switch 2 is connected with the feeder terminal 2, the control end of the switch 2 is connected with the control end of the feeder terminal 2, and the signal end of the switch 2 is connected with the detection end of the feeder terminal 2;
the switch 3 is connected with the feeder terminal 3, the control end of the switch 3 is connected with the control end of the feeder terminal 3, and the signal end of the switch 3 is connected with the detection end of the feeder terminal 3.
3. The automated voltage-time feeder test method of claim 1, wherein:
the voltage time type logic tester is a device capable of outputting two paths of alternating voltages and having a switch position interface acquisition function.
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| CN201910514977.8A CN110261724B (en) | 2019-06-14 | 2019-06-14 | Voltage time type feeder automation test method |
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| CN201910514977.8A CN110261724B (en) | 2019-06-14 | 2019-06-14 | Voltage time type feeder automation test method |
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| CN110954766B (en) * | 2019-11-29 | 2022-04-19 | 广西电网有限责任公司电力科学研究院 | Voltage and current type feeder automatic testing method |
| CN113156268A (en) * | 2021-04-28 | 2021-07-23 | 广东电网有限责任公司珠海供电局 | Voltage time type or current type based fault positioning method, device and equipment |
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