CN112285545B - GIS disconnecting switch opening and closing test method - Google Patents
GIS disconnecting switch opening and closing test method Download PDFInfo
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- CN112285545B CN112285545B CN202011100076.3A CN202011100076A CN112285545B CN 112285545 B CN112285545 B CN 112285545B CN 202011100076 A CN202011100076 A CN 202011100076A CN 112285545 B CN112285545 B CN 112285545B
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
The invention discloses a GIS disconnecting switch opening and closing test method, which comprises the following steps: firstly, placing a GIS isolation switching-on and switching-off action characteristic tester on a test site for installation and connecting a power supply; connecting a special test line with the three-phase two ends of the tester and the GIS isolating switch, and acquiring the actual switching-on and switching-off state of the GIS isolating switch; thirdly, connecting a special test wire with the tester and the GIS isolating switch to realize the operation control of the tester on the GIS isolating switch to be tested; fourthly, a separation leaving switch is tried on and debugged; testing and recording time consumed by switching on and switching off the three-phase switch, and displaying the time by using a bar chart; sixthly, recording and displaying a trend graph and analyzing and judging an analysis result; and seventhly, removing the test wiring, storing the test data and completing the GIS isolating switch test. The testing method can accurately measure the three-phase closing time of the GIS disconnecting switch automatically, and meanwhile, the testing method is convenient to wire, clear in operation interface and convenient to carry equipment for testing.
Description
Technical Field
The invention relates to the technical field of gas insulated switchgear testing, in particular to a GIS disconnecting switch opening and closing testing method.
Background
GIS (gas insulated switchgear) is an English abbreviation of a gas insulated totally-enclosed combined electrical apparatus, GIS equipment or parts are totally enclosed in a metal grounded shell, and SF6 insulating gas with certain pressure is filled in the GIS equipment, so the GIS equipment or parts are also called as an SF6 totally-enclosed combined electrical apparatus, at present, in the installation and acceptance process of a transformer substation GIS equipment and a high-voltage isolating switch, the switching-on and switching-off time characteristic of the isolating switch needs to be tested, the moving and static contact action time of the GIS isolating switch requires that the error value is in the factory specified numerical range, in the past, a relay protection debugging tester with high precision is generally used by oneself to match with external air switches and wires for testing, the three-phase switching-on and switching-off time and the synchronous result of the high-voltage GIS isolating switch are required to be fine, the existing testing method uses a breaker characteristic tester and a three-phase relay protection tester for testing, and the breaker characteristic tester has the time range of 2 seconds, the isolating switch with the quick-break can only be tested, the time range of the isolating switch without the quick-break exceeds 2 seconds, and the isolating switch can only be tested through a professional relay protection debugging instrument through complex external wiring, but because relay protection instrument equipment is heavy, wiring is complex, the field use work efficiency is low, and three phases can not be tested simultaneously.
Disclosure of Invention
In order to solve the technical problem, the invention provides a GIS isolating switch opening and closing testing method which is carried out by a GIS isolating switch opening and closing action characteristic tester and can conveniently and efficiently acquire testing data.
A GIS disconnecting switch opening and closing test method comprises the following steps:
firstly, placing a GIS isolation switching-on and switching-off action characteristic tester on a test site, placing the GIS isolation switching-on and switching-off action characteristic tester beside an installed tested GIS equipment barrier gate and connecting a power supply;
inserting one ends of three special test wires into the 'U1', 'V1', 'W1', 'U2', 'V2' and 'W2' knife switch position acquisition access terminals on the GIS isolation switch on-off action characteristic tester, clamping the other ends of the three special test wires onto lead-out metal rows connected with the three-phase two ends of a GIS isolation switch to be tested respectively by using test clamps, and acquiring the actual on-off state of the GIS isolation switch;
inserting one end of three special test lines into a GX1 common point, a switching-on switch and a switching-off switch operation control output terminal on the GIS isolating switch-on-off action characteristic tester, and connecting the other end of the three special test lines into a control power supply in a GIS isolating switch control box to be tested and a switching-on and switching-off signal input terminal to realize the operation control of the GIS isolating switch to be tested by the tester;
fourthly, manually trying to make and break the tested isolating switch normally, inputting information of the tested GIS isolating switch on a human-computer interface after a switch of the GIS isolating switch-on and switch-off action characteristic tester is turned on to perform self-checking normally, and then operating whether the action of the tested GIS isolating switch is normal or not through a panel button of the GIS isolating switch-on and switch-off action characteristic tester and whether the accessed position of the isolating switch and the switch-on and switch-off position information fed back by auxiliary electric shock are accurate and timely or not;
fifthly, the tested GIS isolating switch is operated to test through the GIS isolating switch-on/switch-off action characteristic tester, when the three-phase switch is in a switch-off state, a switch-on button is pressed, the switch-on time of the three-phase switch is measured, meanwhile, the switch-on time consumption time of the three-phase switch is recorded and displayed by a histogram, or when the three-phase switch is in a switch-on state, the switch-off button is pressed, the switch-off time of the three-phase switch is measured, the switch-off time consumption time of the three-phase switch is recorded and displayed by the histogram;
pressing a trend graph button of the test equipment, jumping to a trend graph interface, pressing a recording button, displaying a trend graph, analyzing and judging an analysis result, judging whether the opening action time and the synchronization data of the GIS isolating switch are within an acceptance standard qualified range, comparing the leaving test data with the error allowable range, if the leaving test data are not in accordance with the standard, correspondingly adjusting the tested GIS isolating switch, and then testing again until the action data are qualified;
and seventhly, removing the test wiring, storing the test data and completing the GIS isolating switch test.
In the fourth step, if the action or position feedback of the isolating switch is incorrect, the test wiring and the isolating switch body are checked and adjusted to be in a correct state.
In the fifth step, the test is carried out for a plurality of times, the action data of each time is stored, complete, real and reasonable recorded data are selected from the test data to be stored, and when the test is operated by mistake, the stop button can be pressed to stop the test.
In the fifth step, a 'closing' test line is connected to a closing input terminal row of the isolating switch, a closing signal is output by pressing a 'closing' button to drive a motor of the isolating switch to rotate forwards, and a GIS isolation closing and opening action characteristic tester starts timing.
When the action time of the auxiliary contact at the position of the isolating switch is tested, the testing lines of 'closing in place', 'opening in place' and 'GX 2' can be selected to be accessed, the other end of the testing line is accessed to a contact connecting terminal for returning to 'closing in place', 'opening in place' in the isolating switch control box, and meanwhile, whether the action of the auxiliary contact of the isolating switch is normal or not is tested.
In the sixth step, when the tested data is not in the set maximum and minimum value range, the trend graph is not displayed.
In the fifth step and the sixth step, the maximum value and the minimum value displayed by the histogram and the trend graph can be set as required.
The invention has the beneficial effects that: the testing method can accurately measure the three-phase closing time of the GIS disconnecting switch automatically, and meanwhile, the testing method is convenient to wire, clear in operation interface and convenient to carry equipment for testing.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, either fixedly connected, detachably connected, or integrally connected, unless otherwise explicitly stated or limited; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The GIS disconnecting switch opening and closing test method provided by the embodiment of the invention comprises the following steps:
firstly, placing a GIS isolation switching-on and switching-off action characteristic tester on a test site, placing the GIS isolation switching-on and switching-off action characteristic tester beside an installed tested GIS equipment barrier gate and connecting a power supply;
inserting one ends of three special test wires into the 'U1', 'V1', 'W1', 'U2', 'V2' and 'W2' knife switch position acquisition access terminals on the GIS isolation switch on-off action characteristic tester, clamping the other ends of the three special test wires onto lead-out metal rows connected with the three-phase two ends of a GIS isolation switch to be tested respectively by using test clamps, and acquiring the actual on-off state of the GIS isolation switch;
inserting one end of three special test lines into a GX1 common point, a switching-on switch and a switching-off switch operation control output terminal on the GIS isolating switch-on-off action characteristic tester, and connecting the other end of the three special test lines into a control power supply in a GIS isolating switch control box to be tested and a switching-on and switching-off signal input terminal to realize the operation control of the GIS isolating switch to be tested by the tester;
fourthly, manually trying to make and break the tested isolating switch normally, inputting information of the tested GIS isolating switch on a human-computer interface after a switch of the GIS isolating switch-on and switch-off action characteristic tester is turned on to perform self-checking normally, and then operating whether the action of the tested GIS isolating switch is normal or not through a panel button of the GIS isolating switch-on and switch-off action characteristic tester and whether the accessed position of the isolating switch and the switch-on and switch-off position information fed back by auxiliary electric shock are accurate and timely or not;
fifthly, the tested GIS isolating switch is operated to test through the GIS isolating switch-on/switch-off action characteristic tester, when the three-phase switch is in a switch-off state, a switch-on button is pressed, the switch-on time of the three-phase switch is measured, meanwhile, the switch-on time consumption time of the three-phase switch is recorded and displayed by a histogram, or when the three-phase switch is in a switch-on state, the switch-off button is pressed, the switch-off time of the three-phase switch is measured, the switch-off time consumption time of the three-phase switch is recorded and displayed by the histogram;
pressing a trend graph button of the test equipment, jumping to a trend graph interface, pressing a recording button, displaying a trend graph, analyzing and judging an analysis result, judging whether the opening action time and the synchronization data of the GIS isolating switch are within an acceptance standard qualified range, comparing the leaving test data with the error allowable range, if the leaving test data are not in accordance with the standard, correspondingly adjusting the tested GIS isolating switch, and then testing again until the action data are qualified;
and seventhly, removing the test wiring, storing the test data and completing the GIS isolating switch test.
In the fourth step, if the action or position feedback of the isolating switch is incorrect, the test wiring and the isolating switch body are checked and adjusted to be in a correct state.
In the fifth step, the test is carried out for a plurality of times, the action data of each time is stored, complete, real and reasonable recorded data are selected from the test data to be stored, and when the test is operated by mistake, the stop button can be pressed to stop the test.
In the fifth step, a 'closing' test line is connected to a closing input terminal row of the isolating switch, a closing signal is output by pressing a 'closing' button to drive a motor of the isolating switch to rotate forwards, and a GIS isolation closing and opening action characteristic tester starts timing.
When the action time of the auxiliary contact at the position of the isolating switch is tested, the testing lines of 'closing in place', 'opening in place' and 'GX 2' can be selected to be accessed, the other end of the testing line is accessed to a contact connecting terminal for returning to 'closing in place', 'opening in place' in the isolating switch control box, and meanwhile, whether the action of the auxiliary contact of the isolating switch is normal or not is tested.
In the sixth step, when the tested data is not in the set maximum and minimum value range, the trend graph is not displayed.
In the fifth step and the sixth step, the maximum value and the minimum value displayed by the histogram and the trend graph can be set as required.
The GIS keeps apart closing and opening action characteristic tester with PLC, 24VDC lithium cell, constant voltage power supply, power filter and touch-sensitive screen centralized combination install in a box structure, conveniently carry, and the relay is external, the convenient wiring, through adopting 24V direct current to change 24V direct current constant voltage power supply output, 24V direct current constant voltage power supply's positive pole flows into PLC's corresponding input port through GIS isolator through direct current power supply filter's positive pole again, export to direct current power supply filter's negative pole by PLC's public end "1M" again, form the return circuit by the negative pole of filter flow to constant voltage power supply's negative pole at last, when one of them isolated switch on/off then the corresponding input port of PLC detects the signal of telecommunication and can make the reflection rapidly, open 1 ms's timer. Namely, the on/off time difference between every two of the 3 contacts can be recorded from the moment of first on/off, the time difference is accurate to 1ms, and the time characteristics of the three-phase disconnecting switch in different stages can be automatically calculated.
The touch screen can visually watch the time difference value between the contact and the contact after recording data, historical data can be stored in groups, so that different data of a plurality of GIS isolating switches can be distinguished, the historical data can be consulted, and the current value of the time difference between corresponding contacts can be automatically compared with the previous time or compared with the historical average value.
The touch screen is provided with two virtual buttons to control the opening and closing of the GIS isolating switch, and the opening and closing actions can be continuously carried out by pressing the buttons. And when the PLC receives an opening/closing instruction, the output port can form a closed loop to continuously drive the 24VDC relay, and the normally open contact acts to connect the opening/closing loop.
To sum up, the embodiment of the invention provides a GIS disconnecting switch opening and closing test method, which can perform high-precision measurement on the three-phase opening and closing time of a GIS disconnecting switch, wherein the precision can be accurate to 0.01 second, a constructor does not need to approach the GIS disconnecting switch for auxiliary measurement during operation, automatic measurement is realized in the whole process, the measurement result has an automatic comparison and analysis function, and the three-phase opening and closing time difference is calculated and analyzed, so that the test method is convenient to apply, simple to operate, small in size and convenient to carry.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (6)
1. A GIS disconnecting switch opening and closing test method is characterized by comprising the following steps:
firstly, placing a GIS isolation switching-on and switching-off action characteristic tester on a test site, placing the GIS isolation switching-on and switching-off action characteristic tester beside an installed tested GIS equipment barrier gate and connecting a power supply;
inserting one ends of three special test wires into the 'U1', 'V1', 'W1', 'U2', 'V2' and 'W2' knife switch position acquisition access terminals on the GIS isolation switch on-off action characteristic tester, clamping the other ends of the three special test wires onto lead-out metal rows connected with the three-phase two ends of a GIS isolation switch to be tested respectively by using test clamps, and acquiring the actual on-off state of the GIS isolation switch;
inserting one end of three special test lines into a GX1 common point, a switching-on switch and a switching-off switch operation control output terminal on the GIS isolating switch-on-off action characteristic tester, and connecting the other end of the three special test lines into a control power supply in a GIS isolating switch control box to be tested and a switching-on and switching-off signal input terminal to realize the operation control of the GIS isolating switch to be tested by the tester;
fourthly, manually trying to make and break the tested isolating switch normally, inputting information of the tested GIS isolating switch on a human-computer interface after a switch of the GIS isolating switch-on and switch-off action characteristic tester is turned on to perform self-checking normally, and then operating whether the action of the tested GIS isolating switch is normal or not through a panel button of the GIS isolating switch-on and switch-off action characteristic tester and whether the accessed position of the isolating switch and the switch-on and switch-off position information fed back by auxiliary electric shock are accurate and timely or not;
fifthly, the tested GIS isolating switch is operated to test through the GIS isolating switch-on/switch-off action characteristic tester, when the three-phase switch is in a switch-off state, a switch-on button is pressed, the switch-on time of the three-phase switch is measured, meanwhile, the switch-on time consumption time of the three-phase switch is recorded and displayed by a histogram, or when the three-phase switch is in a switch-on state, the switch-off button is pressed, the switch-off time of the three-phase switch is measured, the switch-off time consumption time of the three-phase switch is recorded and displayed by the histogram;
pressing a trend graph button of the test equipment, jumping to a trend graph interface, pressing a recording button, displaying a trend graph, analyzing and judging an analysis result, judging whether the opening action time and the synchronization data of the GIS isolating switch are within an acceptance standard qualified range, comparing the leaving test data with the error allowable range, if the leaving test data are not in accordance with the standard, correspondingly adjusting the tested GIS isolating switch, and then testing again until the action data are qualified;
and seventhly, removing the test wiring, storing the test data and completing the GIS isolating switch test.
2. The GIS disconnecting switch opening and closing test method according to claim 1, characterized in that: in the fourth step, if the action or position feedback of the isolating switch is incorrect, the test wiring and the isolating switch body are checked and adjusted to be in a correct state.
3. The GIS disconnecting switch opening and closing test method according to claim 1, characterized in that: in the fifth step, the test is carried out for a plurality of times, the action data of each time is stored, complete, real and reasonable recorded data are selected from the test data to be stored, and when the test is operated by mistake, the stop button can be pressed to stop the test.
4. The GIS disconnecting switch opening and closing test method according to claim 1, characterized in that: in the fifth step, a 'closing' test line is connected to a closing input terminal row of the isolating switch, a closing signal is output by pressing a 'closing' button to drive a motor of the isolating switch to rotate forwards, and a GIS isolation closing and opening action characteristic tester starts timing.
5. The GIS disconnecting switch opening and closing test method according to claim 1, characterized in that: in the sixth step, when the tested data is not in the set maximum and minimum value range, the trend graph is not displayed.
6. The GIS disconnecting switch opening and closing test method according to claim 1, characterized in that: in the fifth step and the sixth step, the maximum value and the minimum value displayed by the histogram and the trend graph can be set as required.
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| CN202011100076.3A CN112285545B (en) | 2020-10-14 | 2020-10-14 | GIS disconnecting switch opening and closing test method |
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| CN202011100076.3A CN112285545B (en) | 2020-10-14 | 2020-10-14 | GIS disconnecting switch opening and closing test method |
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| CN112285545B true CN112285545B (en) | 2021-06-04 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4644547B2 (en) * | 2005-07-07 | 2011-03-02 | 中国電力株式会社 | Accident detection device for gas insulated switchgear |
| CN101247292B (en) * | 2008-02-22 | 2011-08-10 | 中兴通讯股份有限公司 | Test equipment and method based on universal test meter API |
| CN104360263B (en) * | 2014-10-29 | 2017-12-08 | 国家电网公司 | With the method for the circuit breaker operation mechanism fault diagnosis expert system of divide-shut brake coil current |
| CN205353314U (en) * | 2016-02-04 | 2016-06-29 | 湖南工程学院 | Isolator opening and closing state monitoring devices in GIS equipment |
| CN106932677B (en) * | 2017-04-24 | 2018-09-14 | 广东电网有限责任公司惠州供电局 | GIS device divide-shut brake stroke detection equipment and system |
| CN111638051B (en) * | 2020-06-15 | 2022-05-27 | 山东电工电气集团有限公司 | On-line monitoring and fault pre-judging method for state of disconnecting link |
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