CN107064790B - Voltage time type logic tester and testing method - Google Patents
Voltage time type logic tester and testing method Download PDFInfo
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- CN107064790B CN107064790B CN201710202249.4A CN201710202249A CN107064790B CN 107064790 B CN107064790 B CN 107064790B CN 201710202249 A CN201710202249 A CN 201710202249A CN 107064790 B CN107064790 B CN 107064790B
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention discloses a voltage time type logic tester and a testing method, wherein a power distribution terminal logic testing module comprises a control loop, wherein a contactor in the control loop is connected with a main output loop of the contactor, and the main output loop of the contactor is connected with a power supply output end; the sectional switch opening time testing module comprises a timer, wherein the timer automatically records the switch opening time; the switching-on peak current testing module comprises a current transformer connected in series on an output port of the power distribution terminal, and the switching-on peak current is measured through an ammeter; the remote signaling remote sensing auxiliary test module comprises an adjustable voltage and current output module and an analog switch, wherein the adjustable voltage and current output module outputs adjustable voltage and current, and the remote signaling remote sensing auxiliary test module is matched with the analog switch to complete remote signaling remote sensing function test. The voltage time type power distribution terminal logic verification, the sectional switch closing peak current test, the sectional switch opening time test and the remote sensing remote signaling auxiliary function test can be realized.
Description
Technical Field
The invention relates to the technical field of intelligent switch logic testing, in particular to a voltage time type logic tester and a testing method.
Background
The power distribution automation system has short application time, the related technical specifications and standards are not perfect, and the reliability of the equipment cannot meet the requirements. In many hilly areas, the voltage time type feeder line in the in-situ mode is widely applied, the duty ratio reaches 92%, and conditions are brought for the application of equipment.
Taking a certain city power distribution network as an example, in 2014, accidents such as expansion of a fault range, inaccurate judgment of a fault interval, reclosing failure caused by slow switching-off speed of a switch, burnout of a power distribution terminal caused by large switching-on current of the switch and the like occur for many times. For a long time, no detecting instrument for intelligent distribution network equipment exists, so that equipment defects which should be eliminated before operation are exposed, and great hidden danger is brought to the operation of a distribution network.
Disclosure of Invention
The invention aims to solve the problems, and provides a voltage time type logic tester and a testing method, which can realize logic verification of a voltage time type distribution terminal, testing of a sectional switch closing peak current, testing of a sectional switch opening time and testing of a remote sensing and remote signaling auxiliary function.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the voltage time type logic tester comprises a power distribution terminal logic test module, a sectionalizing switch opening time test module, a closing peak current test module and a remote signaling and telemetry auxiliary test module;
the power distribution terminal logic test module comprises a control loop, wherein a contactor in the control loop is connected with a main output loop of the contactor, and the main output loop of the contactor is connected with a power supply output end;
the segment switch opening time testing module comprises a timer, and the timer automatically records the switch opening time;
the switching-on peak current testing module comprises a current transformer connected in series on an output port of the power distribution terminal, and the switching-on peak current is measured through an ammeter;
the remote signaling and remote sensing auxiliary test module comprises an adjustable voltage and current output module and an analog switch, wherein the adjustable voltage and current output module outputs adjustable voltage and current, and the remote signaling and remote sensing auxiliary test module is matched with the analog switch to finish remote signaling and remote sensing function test.
The power distribution terminal logic test module, the sectionalizing switch opening time test module, the closing peak current test module and the remote signaling telemetry auxiliary test module are integrated in the same portable box body; and the power distribution terminal logic test module, the sectionalizing switch opening time test module and the closing peak current test module share a power supply interface.
The control loop comprises a power supply side control loop and a load side control loop which are connected in series on a main line, two air main switches G1 and G2 are connected in series on the main line, and an indicator lamp T0 is connected on the main line; the main line comprises a live line and a zero line; accurate output of voltage pulses at the power supply side and the load side of the power distribution terminal is realized by setting a time relay, so that voltage change conditions of the power distribution terminal under various fault states of a circuit are simulated, and logic test of the power distribution terminal is realized
The power supply side control loop comprises nine branches connected in parallel on a live wire and a zero wire, and a power supply side start button QA1 and a time relay SJ4 are connected in series on one branch; the power side starting button QA1, the normally closed contact of the time relay SJ4, the normally closed contact of the tripping button TA1 and the contactor K1 are connected in series on one branch; a normally open contact of the intermediate relay SJ1Z, a normally closed contact of the intermediate relay SJ2Z and the contactor K1 are connected in series on one branch; a normally closed contact of the time relay SJ3 and the contactor K1 are connected in series on one branch; a normally open contact of a tripping button TA1 and a time relay SJ1 are connected in series on one branch; a normally open contact of the intermediate relay SJ1Z and the time relay SJ2 are connected in series on one branch; a normally open contact of the intermediate relay SJ2Z and the time relay SJ3 are connected in series on one branch; a normally open contact of the time relay SJ1 and an intermediate relay SJ1Z are connected in series on one branch; and a normally open contact of the time relay SJ2 and the intermediate relay SJ2Z are connected in series on one branch.
The load side control loop comprises nine branches connected in parallel on a live wire and a zero wire, and a load side start button QA2 and a contactor K2 are connected in series on one branch; a normally open contact of the contactor K2, a normally closed contact of the tripping button TA2 and the contactor K2 are connected in series on one branch; a normally open contact of the intermediate relay SJ5Z, a normally closed contact of the intermediate relay SJ6Z and the contactor K2 are connected in series on one branch; a normally open contact of the time relay SJ7 and the contactor K2 are connected in series on one branch; a normally open contact of the trip button TA2 and a time relay SJ5 are connected in series on one branch; a normally open contact of the intermediate relay SJ5Z and the time relay SJ6 are connected in series on one branch; a normally open contact of the intermediate relay SJ6Z and the time relay SJ7 are connected in series on one branch; a normally open contact of the time relay SJ5 and an intermediate relay SJ5Z are connected in series on one branch; a normally open contact of the time relay SJ6 and the intermediate relay SJ6Z are connected in series on one branch.
The time testing module comprises a time accumulator, wherein the input end of the time accumulator is connected with a normally open contact of the relay J1 and a normally closed contact of the relay J2, two ends of the relay J1 are directly connected with a 220V power supply, and the relay J2 is connected with the normally closed contact of the auxiliary contact of the sectionalizer in series and then connected with the 220V power supply.
The adjustable voltage and current output module comprises a voltage regulator, wherein the output end of the voltage regulator is connected with a switch K, a slide wire rheostat R1, a slide wire rheostat R2 and an ammeter in series;
the analog switch comprises six endpoints, the six endpoints are externally integrated into an analog switch interface, a normally open contact of a relay J is connected between the 1 endpoint and the 2 endpoint, the 3 endpoint and the 4 endpoint are suspended, and an indicator light T3 and the relay J are connected between the 5 endpoint and the 6 endpoint in parallel.
The voltage time type logic tester testing method includes,
performing logic tests of a power distribution terminal, including performing a delay closing logic test, performing an X-time limit locking test, performing a two-side voltage locking test and performing a Y-time limit locking test;
carrying out a segment switch opening time test, automatically recording a segment switch opening time value, and if the segment switch opening time value is larger than reclosing time of a transformer substation switch, enabling the segment switch opening time to be normal;
carrying out a closing peak current test, automatically recording the maximum current value in the process of closing the sectional switch, and if the maximum current value meets the capacity requirements of a closing relay and a safety, testing the closing peak current normally;
and performing remote signaling telemetry auxiliary test, and observing the closing condition of the sectional switch by changing the state of the analog switch to judge the correctness of the remote signaling telemetry function.
Performing a delay closing logic test, setting time delay through a time relay, observing whether a sectional switch is closed by delay after a power side starting button is pressed, and if the sectional switch is closed by delay, enabling a power distribution terminal to have normal delay closing logic;
and (3) performing X time limit locking test, wherein X time limit test time, first reclosing time, output time after reclosing and second reclosing time are set through a time relay, a starting button at the power supply side is pressed, a sectional switch is set to be in fault after being closed, and if the sectional switch is switched from non-closing to non-closing, X time limit locking logic is normal.
Performing a voltage locking test on two sides, pressing a power supply side starting button, rapidly pressing a load side starting button, and if the sectionalizing switch is not closed, normally locking logic on the two sides;
and (3) performing Y time limit locking test, wherein the X time limit test time, the primary reclosing time, the FA action time and the secondary reclosing time are set through a time relay, a power supply side starting button is pressed, the sectional switch is set to be in fault after being closed, and if the sectional switch is subjected to the action processes of opening, closing and separating, the Y time limit locking logic is normal.
The invention has the beneficial effects that:
the invention can realize logic verification of the voltage time type distribution terminal, test of the switching-on peak current of the sectionalized switch, test of the switching-off time of the sectionalized switch and test of the remote sensing and remote signaling auxiliary function.
Drawings
FIG. 1 is a circuit diagram of a control loop;
FIG. 2 is a main circuit diagram of the contactor;
FIG. 3 is a power supply output diagram;
FIG. 4 is a timing diagram of a time delay close;
FIG. 5 is an X time-limited latch-up timing diagram;
FIG. 6 is a timing diagram of a two-sided voltage latch-up;
FIG. 7 is a Y time-limited latch-up timing diagram;
FIG. 8 is a diagram of a test loop of the opening time of a sectionalizing switch;
FIG. 9 is a graph of peak closing current test;
FIG. 10 is a diagram of a telemetry test circuit for telemetry by telemetry;
FIG. 11 is a diagram of an analog switch circuit;
fig. 12 is an analog switch interface diagram.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The voltage time type logic tester comprises a power distribution terminal logic test module, a sectionalizing switch opening time test module, a closing peak current test module and a remote signaling and telemetry auxiliary test module;
the power distribution terminal logic test module comprises a control loop, wherein a contactor in the control loop is connected with a main output loop of the contactor, and the main output loop of the contactor is connected with a power supply output end;
the segment switch opening time testing module comprises a timer, and the timer automatically records the switch opening time;
as shown in fig. 9, the switching-on peak current testing module includes a current transformer connected in series to an output port of the power distribution terminal, and measures switching-on peak current through an ammeter;
the remote signaling and remote sensing auxiliary test module comprises an adjustable voltage and current output module and an analog switch, wherein the adjustable voltage and current output module outputs adjustable voltage and current, and the remote signaling and remote sensing auxiliary test module is matched with the analog switch to finish remote signaling and remote sensing function test.
The power distribution terminal logic test module, the sectionalizing switch opening time test module, the closing peak current test module and the remote signaling telemetry auxiliary test module are integrated in the same portable box body; and the power distribution terminal logic test module, the sectionalizing switch opening time test module and the closing peak current test module share a power supply interface.
As shown in fig. 1, the control loop includes a power supply side control loop and a load side control loop connected in series on a main line, two air main switches G1 and G2 are connected in series on the main line, and an indicator lamp T0 is connected on the main line; the main line comprises a live line and a zero line; accurate output of voltage pulses at the power supply side and the load side of the power distribution terminal is realized by setting a time relay, so that voltage change conditions of the power distribution terminal under various fault states of a circuit are simulated, and logic test of the power distribution terminal is realized
The power supply side control loop comprises nine branches connected in parallel on a live wire and a zero wire, and a power supply side start button QA1 and a time relay SJ4 are connected in series on one branch; the power side starting button QA1, the normally closed contact of the time relay SJ4, the normally closed contact of the tripping button TA1 and the contactor K1 are connected in series on one branch; a normally open contact of the intermediate relay SJ1Z, a normally closed contact of the intermediate relay SJ2Z and the contactor K1 are connected in series on one branch; a normally closed contact of the time relay SJ3 and the contactor K1 are connected in series on one branch; a normally open contact of a tripping button TA1 and a time relay SJ1 are connected in series on one branch; a normally open contact of the intermediate relay SJ1Z and the time relay SJ2 are connected in series on one branch; a normally open contact of the intermediate relay SJ2Z and the time relay SJ3 are connected in series on one branch; a normally open contact of the time relay SJ1 and an intermediate relay SJ1Z are connected in series on one branch; and a normally open contact of the time relay SJ2 and the intermediate relay SJ2Z are connected in series on one branch.
The load side control loop comprises nine branches connected in parallel on a live wire and a zero wire, and a load side start button QA2 and a contactor K2 are connected in series on one branch; a normally open contact of the contactor K2, a normally closed contact of the tripping button TA2 and the contactor K2 are connected in series on one branch; a normally open contact of the intermediate relay SJ5Z, a normally closed contact of the intermediate relay SJ6Z and the contactor K2 are connected in series on one branch; a normally open contact of the time relay SJ7 and the contactor K2 are connected in series on one branch; a normally open contact of the trip button TA2 and a time relay SJ5 are connected in series on one branch; a normally open contact of the intermediate relay SJ5Z and the time relay SJ6 are connected in series on one branch; a normally open contact of the intermediate relay SJ6Z and the time relay SJ7 are connected in series on one branch; a normally open contact of the time relay SJ5 and an intermediate relay SJ5Z are connected in series on one branch; a normally open contact of the time relay SJ6 and the intermediate relay SJ6Z are connected in series on one branch.
As shown in fig. 2-3, the main output circuit of the contactor comprises circuits where the contactors K1 and K2 are located, the contactor K1 is connected with the 1 and 3 ports of the power output end, an indicator lamp T1 is further connected between the 1 and 3 ports of the main output circuit of the contactor where the contactor K1 is located, the contactor K2 is connected with the 2 and 3 ports of the power output end, and an indicator lamp T2 is further connected between the 2 and 3 ports of the main output circuit of the contactor where the contactor K2 is located.
As shown in fig. 8, the segment switch opening time testing module comprises a timer, wherein the input end of the timer is connected with the normally open contact of the relay J1 and simultaneously connected with the normally closed contact of the relay J2, the two ends of the relay J1 are directly connected with a 220V power supply, and the relay J2 is connected with the normally closed contact of the auxiliary contact of the segment switch in series and then connected with the 220V power supply.
As shown in fig. 10, the adjustable voltage-current output module includes a voltage regulator, wherein the output end of the voltage regulator is connected in series with a switch K, a slide wire rheostat R1, a slide wire rheostat R2 and an ammeter;
as shown in fig. 11-12, the analog switch includes six terminals, the six terminals are integrated into an analog switch interface, a normally open contact of the relay J is connected between the 1 terminal and the 2 terminal, the 3 terminal and the 4 terminal are suspended, and the indicator lamp T3 and the relay J are connected in parallel between the 5 terminal and the 6 terminal. Six endpoints of the analog switch are respectively in one-to-one correspondence with six endpoints of the analog switch interface.
The voltage time type logic tester testing method includes,
performing logic tests of a power distribution terminal, including performing a delay closing logic test, performing an X-time limit locking test, performing a two-side voltage locking test and performing a Y-time limit locking test;
carrying out a segment switch opening time test, automatically recording a segment switch opening time value, and if the segment switch opening time value is larger than reclosing time of a transformer substation switch, enabling the segment switch opening time to be normal;
the test of the opening time of the sectional switch is used for testing the opening time of the sectional switch, and the opening time is ensured to be larger than the reclosing time of the transformer substation switch. So as to prevent the time-division switch from being disconnected after the successful superposition of the lines and directly superposed on the fault point. The device is connected with the sectional switch and the terminal by using a special test cable, and the time displayed on the accumulator is the switch opening time after the switch opening is finished.
When the logic test device of the sectional terminal is used for logic test, the accumulator can automatically record the switching-off time value of the switch (the working principle of the accumulator is that two groups of electric shock are arranged on the accumulator, the starting contact and the pause contact are switched on, when the two points of the starting contact are switched on, the accumulator can automatically enter a timing state, when the pause contact is switched on, the accumulator automatically enters the pause state, a numerical value is displayed, and the automatic zero clearing is restarted when the next restart is carried out) (the auxiliary contact of the sectional switch is an internal indication contact of the switch, the auxiliary contact is also switched on when the switch is switched on, and the contact is switched on when the switch is switched on). The time is accurate to 0.01S, which is the time taken for the line to drop to the switch auxiliary contact to open.
Carrying out a closing peak current test, automatically recording the maximum current value in the process of closing the sectional switch, and if the maximum current value meets the capacity requirements of a closing relay and a safety, testing the closing peak current normally; during the closing process of the switch, the peak ammeter can automatically record the maximum current in the process.
And performing remote signaling telemetry auxiliary test, and observing the closing condition of the sectional switch by changing the state of the analog switch to judge the correctness of the remote signaling telemetry function.
When the delay closing logic test is performed, as shown in fig. 1, fig. 4 and fig. 11, the power supply side of the sectional terminal (voltage time type power distribution terminal) is pressed, the delay closing of the terminal (specific time can be set by oneself, the description uses X time limit 7s as an example), the time of setting the time relay SJ4 of the time limit test of the X time limit is 5 minutes, the general power supply is closed for opening G1 and G2, the button QA1 on the power supply side is pressed, the sectional switch indicator lamp T3 is observed, if the sectional switch is closed in a delay manner, the terminal locking lamp (the terminal equipment is self-contained) is not on, and the delay closing logic of the terminal is normal.
When the X time limit locking test is carried out, as shown in fig. 1, 5 and 11, the power supply side loses power in the X time limit of the terminal, at the moment, the terminal is locked, and the power supply side is turned on again to carry out the terminal delay closing; the load side incoming call terminal keeps locked, and the switch is not closed.
Setting the time relay SJ4 of the X time limit test as 5 minutes, the time relay SJ1 of the first reclosing time as 2 seconds, the time relay SJ2 of the output time after superposition as 5 seconds, the time relay SJ3 of the second reclosing time as 2 seconds, turning on the power supply, pressing the button QA1 of the power supply side, pressing the button TA1 of the power supply side voltage of the tester (in figure 2), pressing the button TA1 of the fault occurrence after the switch on of the equal-section switch for 5 seconds, turning off the section switch indicator T3 (in figure 11), turning on the section switch indicator after about 16 seconds, observing that the locking lamp of the terminal is turned from off to normal on to off, and the locking logic of X is normal.
When the voltage locking test on two sides is performed, as shown in fig. 1 and 6, in order to prevent misoperation, the two sides of the sectionalizing switch are simultaneously pressed, the terminal is designed with a voltage locking function on two sides, the two sides are simultaneously pressed to lock the terminal, and the sectionalizing switch is not closed, so that the safe operation of the distribution network is ensured.
Starting the 'main power' idle switches G1 and G2, starting the equipment, pressing a 'power side start' button QA1, rapidly pressing a 'load side start' button QA2, observing that the sectional terminal locking lamp becomes normally on, and the sectional switch indicating lamp is not on, so that the locking logic is normal when the two sides of the terminal are pressed.
When the Y-time locking test is performed, as shown in fig. 1 and 7, in order to determine whether an accident exists after the switch is closed, the terminal performs Y-time timing, if the voltage is lost in the Y-time, the terminal locking lamp is normally on, the power supply side incoming call switch is not closed, and the load side incoming call switch is closed in a delayed mode.
Setting the time of an X time limit test time relay SJ4 as 5 minutes, setting the time of a one-time reclosing time relay SJ1 as 2 seconds, setting the time of a reclosing output time relay SJ2 as 8 seconds after superposition, setting the time of a second reclosing time relay SJ3 as 2 seconds, turning on a power supply, pressing a power supply side start button QA1, turning on a power supply side voltage indicator lamp T1 (in fig. 2) of the tester, pressing a fault occurrence button TA1 after a sectioning switch is switched on for 5 seconds, observing the sectioning switch indicator lamp and a terminal, and if the sectioning switch indicator lamp is subjected to the action process of switching on, switching off and switching on, turning off a terminal locking lamp into normal light, and proving that the time limit locking logic of the terminal Y is normal.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (8)
1. The voltage time type logic tester is characterized by comprising a power distribution terminal logic test module, a sectionalizing switch opening time test module, a closing peak current test module and a remote signaling telemetry auxiliary test module;
the power distribution terminal logic test module comprises a control loop, wherein a contactor in the control loop is connected with a main output loop of the contactor, and the main output loop of the contactor is connected with a power supply output end;
the segment switch opening time testing module comprises a timer, and the timer automatically records the switch opening time;
the switching-on peak current testing module comprises a current transformer connected in series on an output port of the power distribution terminal, and the switching-on peak current is measured through an ammeter;
the remote signaling and remote sensing auxiliary test module comprises an adjustable voltage and current output module and an analog switch, wherein the adjustable voltage and current output module outputs adjustable voltage and current, and the remote signaling and remote sensing auxiliary test module is matched with the analog switch to complete remote signaling and remote sensing function test;
the power distribution terminal logic test module, the sectionalizing switch opening time test module, the closing peak current test module and the remote signaling telemetry auxiliary test module are integrated in the same portable box body; the power distribution terminal logic test module, the sectionalizing switch opening time test module and the closing peak current test module share a power supply interface;
the control loop comprises a power supply side control loop and a load side control loop which are connected in series on a main line, two air main switches G1 and G2 are connected in series on the main line, and an indicator lamp T0 is connected on the main line; the main line comprises a live line and a zero line; the accurate output of the voltage pulses at the power supply side and the load side of the power distribution terminal is realized by setting the time relay, so that the voltage change condition of the power distribution terminal under various fault states of a circuit is simulated, and the logic test of the power distribution terminal is realized.
2. The voltage-time logic tester according to claim 1, wherein the power supply side control loop comprises nine branches connected in parallel to a live wire and a zero wire, and a power supply side start button QA1 and a time relay SJ4 are connected in series on one branch; the power side starting button QA1, the normally closed contact of the time relay SJ4, the normally closed contact of the tripping button TA1 and the contactor K1 are connected in series on one branch; a normally open contact of the intermediate relay SJ1Z, a normally closed contact of the intermediate relay SJ2Z and the contactor K1 are connected in series on one branch; a normally closed contact of the time relay SJ3 and the contactor K1 are connected in series on one branch; a normally open contact of a tripping button TA1 and a time relay SJ1 are connected in series on one branch; a normally open contact of the intermediate relay SJ1Z and the time relay SJ2 are connected in series on one branch; a normally open contact of the intermediate relay SJ2Z and the time relay SJ3 are connected in series on one branch; a normally open contact of the time relay SJ1 and an intermediate relay SJ1Z are connected in series on one branch; and a normally open contact of the time relay SJ2 and the intermediate relay SJ2Z are connected in series on one branch.
3. The voltage time type logic tester according to claim 1, wherein the load side control loop comprises nine branches connected in parallel to a live wire and a zero wire, and a load side start button QA2 and a contactor K2 are connected in series on one branch; a normally open contact of the contactor K2, a normally closed contact of the tripping button TA2 and the contactor K2 are connected in series on one branch; a normally open contact of the intermediate relay SJ5Z, a normally closed contact of the intermediate relay SJ6Z and the contactor K2 are connected in series on one branch; a normally open contact of the time relay SJ7 and the contactor K2 are connected in series on one branch; a normally open contact of the trip button TA2 and a time relay SJ5 are connected in series on one branch; a normally open contact of the intermediate relay SJ5Z and the time relay SJ6 are connected in series on one branch; a normally open contact of the intermediate relay SJ6Z and the time relay SJ7 are connected in series on one branch; a normally open contact of the time relay SJ5 and an intermediate relay SJ5Z are connected in series on one branch; a normally open contact of the time relay SJ6 and the intermediate relay SJ6Z are connected in series on one branch.
4. The voltage time type logic tester according to claim 1, wherein the sectionalizing switch opening time testing module comprises a time accumulator, the input end of the time accumulator is connected with a normally open contact of a relay J1 and simultaneously connected with a normally closed contact of a relay J2, two ends of the relay J1 are directly connected with a 220V power supply, and the relay J2 is connected with the normally closed contact of an auxiliary contact of the sectionalizing switch in series and then connected with the 220V power supply.
5. The voltage-time logic tester according to claim 1, wherein the adjustable voltage-current output module comprises a voltage regulator, and the output end of the voltage regulator is connected with a switch K, a slide wire rheostat R1, a slide wire rheostat R2 and an ammeter in series;
the analog switch comprises six endpoints, the six endpoints are externally integrated into an analog switch interface, a normally open contact of a relay J is connected between the 1 endpoint and the 2 endpoint, the 3 endpoint and the 4 endpoint are suspended, and an indicator light T3 and the relay J are connected between the 5 endpoint and the 6 endpoint in parallel.
6. The testing method of the voltage time type logic tester is characterized by comprising the following steps of,
performing logic tests of a power distribution terminal, including performing a delay closing logic test, performing an X-time limit locking test, performing a two-side voltage locking test and performing a Y-time limit locking test;
carrying out a segment switch opening time test, automatically recording a segment switch opening time value, and if the segment switch opening time value is larger than reclosing time of a transformer substation switch, enabling the segment switch opening time to be normal;
carrying out a closing peak current test, automatically recording the maximum current value in the process of closing the sectional switch, and if the maximum current value meets the capacity requirements of a closing relay and a safety, testing the closing peak current normally;
and performing remote signaling telemetry auxiliary test, and observing the closing condition of the sectional switch by changing the state of the analog switch to judge the correctness of the remote signaling telemetry function.
7. The method for testing a voltage-time logic tester according to claim 6, wherein,
performing a delay closing logic test, setting time delay through a time relay, observing whether a sectional switch is closed by delay after a power side starting button is pressed, and if the sectional switch is closed by delay, enabling a power distribution terminal to have normal delay closing logic;
and (3) performing X time limit locking test, wherein X time limit test time, first reclosing time, output time after reclosing and second reclosing time are set through a time relay, a starting button at the power supply side is pressed, a sectional switch is set to be in fault after being closed, and if the sectional switch is switched from non-closing to non-closing, X time limit locking logic is normal.
8. The method for testing a voltage-time logic tester according to claim 6, wherein,
performing a voltage locking test on two sides, pressing a power supply side starting button, rapidly pressing a load side starting button, and if the sectionalizing switch is not closed, normally locking logic on the two sides;
and (3) performing Y time limit locking test, wherein the X time limit test time, the primary reclosing time, the FA action time and the secondary reclosing time are set through a time relay, a power supply side starting button is pressed, the sectional switch is set to be in fault after being closed, and if the sectional switch is subjected to the action processes of opening, closing and separating, the Y time limit locking logic is normal.
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| CN110350471B (en) * | 2019-06-10 | 2021-09-10 | 国网江西省电力有限公司电力科学研究院 | Method for verifying voltage time type feeder automation function |
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