CN106546866B - A kind of method and device for testing secondary circuit pressing plate on-off - Google Patents
A kind of method and device for testing secondary circuit pressing plate on-off Download PDFInfo
- Publication number
- CN106546866B CN106546866B CN201610922144.1A CN201610922144A CN106546866B CN 106546866 B CN106546866 B CN 106546866B CN 201610922144 A CN201610922144 A CN 201610922144A CN 106546866 B CN106546866 B CN 106546866B
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- pressing plate
- secondary circuit
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- voltage
- circuit
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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
Abstract
The present invention relates to a kind of method and devices for testing secondary circuit pressing plate on-off, the device includes contact device, circuit for testing voltage and current testing circuit, wherein, contact device is connect with secondary circuit pressing plate, contact device tests the break-make situation of secondary circuit pressing plate for testing whether secondary circuit pressing plate both ends have voltage；Circuit for testing voltage is connect with contact device, and circuit for testing voltage is for judging whether secondary circuit pressing plate both ends have voltage, if there is voltage then carries out light warning；Current testing circuit is connect with contact device, and current testing circuit is used to judge the break-make situation of secondary circuit pressing plate, and is carried out sound-light alarm or stopped sound-light alarm.A kind of method and device for testing secondary circuit pressing plate on-off provided by the invention, improves the reliability and safety of the connection of secondary circuit pressing plate, improves work efficiency simultaneously, have very strong practicability.
Description
Technical field
The present invention relates to testing field more particularly to a kind of method and devices for testing secondary circuit pressing plate on-off.
Background technique
The method tested at present the high-tension apparatus of supply station requires power-off and carries out, by the electric current of test apparatus or
Voltage signal is loaded on existing device secondary circuit and is detected, and for convenience of detecting, switching device is equipped with the secondary dress of connection
The pressing plate (voltage transformer and current transformer connection sheet) set, and by pressing plate fastened by screw.When being tested, first
Plate screw is unclamped with small screwdriver, is then turned off the pressing plate of connection conducting, after the test, then with small screwdriver the pressure of release
Plate screw is screwed on, and is connected pressing plate and is connected.However whether the pressing plate after fastened by screw is connected, currently without testing equipment into
Row detection, can only use visual method, be repeated to twist plate screw with small screwdriver, whether judge pressing plate by experimenter personal experience
Conducting.In addition, the multimeter for being usually used in detection voltage and current can not effectively detect the break-make situation of pressing plate, because of multimeter
Resistance grade and the principle of buzzer do not meet working environment.
Whether be connected using visual method detection pressing plate, be easy to cause testing result precision not high, and with small screwdriver
It repeats to twist plate screw, the screw thread that the time has grown screw is easily damaged, and screw thread damage causes it is impossible to ensure that pressing plate is tightened.If
The non-normally of pressing plate will cause voltage transformer connection sheet open circuit and current transformer connection sheet open circuit without finding in time
And transmission operation, hidden danger can be brought to safety utilization of electric power, therefore, a kind of method for needing fast and convenient measuring pressure plate conducting situation of energy
Or device.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of test secondary circuit pressing plate
The method and device of on-off.
The technical scheme to solve the above technical problems is that
A kind of device for testing secondary circuit pressing plate on-off, including contact device, circuit for testing voltage and testing current
Circuit, wherein
The contact device is connect with the secondary circuit pressing plate, and the contact device is for testing the secondary circuit pressure
Whether board ends have voltage, and test the break-make situation of the secondary circuit pressing plate；
The circuit for testing voltage is connect with the contact device, and the circuit for testing voltage is for judging the secondary returning
Whether road pressing plate both ends have voltage, if there is voltage then carries out light warning；
The current testing circuit is connect with the contact device, and the current testing circuit is for judging the secondary returning
The break-make situation of road pressing plate, and carry out sound-light alarm or stop sound-light alarm.
The beneficial effects of the present invention are: a kind of device for testing secondary circuit pressing plate on-off provided by the invention, by connecing
Touching device is connect with secondary circuit pressing plate, and judges whether secondary circuit pressing plate both ends have voltage by circuit for testing voltage, and
Light warning is carried out, and judges the break-make situation of secondary circuit pressing plate by current testing circuit, and carry out sound-light alarm or stop
Only sound-light alarm realizes the intuitive accurate judgement to secondary circuit pressing plate break-make situation, secondary circuit pressure greatly improved
The reliability and safety of plate connection, while the efficiency of work is improved, and the device circuit is simple, is convenient for operation, volume
It is small, light-weight, easy to carry, at low cost, there is very strong practicability.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the contact device includes:
Test pencil is connect with the both ends of the secondary circuit pressing plate, and the test pencil is for measuring the secondary circuit pressing plate two
The break-make situation of the voltage at end and the secondary circuit pressing plate；
Test pencil interface is connect with the test pencil, the circuit for testing voltage and the current testing circuit respectively.
Further, the circuit for testing voltage includes:
Voltage gear switch is connect with the anode of the test pencil interface, and the voltage gear switch is surveyed for starting the voltage
Try circuit；
Fuse is connect with the voltage gear switch, and the fuse is used to measure institute when being closed the voltage gear switch
When stating the voltage at secondary circuit pressing plate both ends, circuit is protected；
First resistor is connect with the fuse；
First light emitting diode, first light emitting diode anode connect with the first resistor, cathode with it is described
The cathode of test pencil interface connects, and after first light emitting diode connects the secondary circuit pressing plate for the test pencil, works as institute
When stating secondary circuit pressing plate both ends has voltage, light warning is carried out.
Further, the current testing circuit includes:
Electric current gear switch is connect with the anode of the test pencil interface；
Power switch is connect with the electric current gear switch, and the power switch is for starting the current testing circuit；
The anode of power supply, the power supply is connect with the power switch, and cathode is connect with the cathode of the test pencil interface, institute
State power supply for for the current testing circuit power supply；
Intermediate relay is connect with the cathode of the electric current gear switch and the test pencil interface respectively, the centre after
Electric appliance is used to be attracted or be shorted according to the break-make situation of the secondary circuit pressing plate；
Intermediate relay switch, connect with the electric current gear switch；
Second resistance is switched with the intermediate relay and is connected；
Second light emitting diode, second light emitting diode anode connect with the second resistance, cathode with it is described
The cathode of test pencil interface connects, and second light emitting diode is used for light warning；
Buzzer is connect with the cathode of intermediate relay switch and the test pencil interface, the buzzer respectively
For audible alarm；
Schottky diode, the cathode of the Schottky diode are connect with the buzzer, positive to connect with the test pencil
The cathode connection of mouth.
Further, second light emitting diode and the buzzer are specifically used for after being closed the electric current gear switch
It is automatic to carry out sound-light alarm, after being also used to the test pencil connection secondary circuit pressing plate, when the secondary circuit pressing plate is normal
Conducting, stop alarm are lasting to alarm when the non-normally of secondary circuit pressing plate.
Further, the Schottky diode is protection freewheeling diode, for surveying when being closed the electric current gear switch
When measuring the break-make situation of the secondary circuit pressing plate, circuit is protected.
Further, when the secondary circuit pressing plate normally, the intermediate relay is shorted, the intermediate relay
The contact of device disconnects；When the non-normally of the secondary circuit pressing plate, the intermediate relay obtains electric actuation, the centre after
The junction closure of electric appliance.
A method of test secondary circuit pressing plate on-off, comprising the following steps:
Step 1, whether measurement secondary circuit pressing plate both ends have voltage, if there is voltage, 2 are thened follow the steps, if without electricity
Pressure, thens follow the steps 3；
Step 2, the power supply of the secondary circuit is disconnected, and executes step 3；
Step 3, the break-make situation of the secondary circuit pressing plate is tested.
Further, in step 3, comprising:
Step 3.1, it is closed the electric current gear switch of test device, the test device persistently carries out sound-light alarm；
Step 3.2, the test device is connected the secondary circuit pressing plate to test, if the test device is held
It is continuous to carry out sound-light alarm, then show the non-normally of secondary circuit pressing plate；If the test device stops sound-light alarm,
Then show the secondary circuit pressing plate normally.
The advantages of additional aspect of the invention, will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or practice is recognized through the invention.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of device for testing secondary circuit pressing plate on-off provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides a kind of test secondary circuit pressing plate on-off device circuit theory
Figure；
Fig. 3 be another embodiment of the present invention provides a kind of test secondary circuit pressing plate on-off method process signal
Figure.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, showing for a kind of structure of device for testing secondary circuit pressing plate on-off provided in an embodiment of the present invention
It is intended to, which includes contact device 101, circuit for testing voltage 102 and current testing circuit 103, wherein
Contact device 101 is connect with secondary circuit pressing plate, and whether contact device 101 is for testing secondary circuit pressing plate both ends
There is voltage, and tests the break-make situation of secondary circuit pressing plate；
Circuit for testing voltage 102 is connect with contact device 101, and circuit for testing voltage 102 is for judging secondary circuit pressing plate
Whether both ends have voltage, if there is voltage then carries out light warning；
Current testing circuit 103 is connect with contact device 101, and current testing circuit 103 is for judging secondary circuit pressing plate
Break-make situation, and carry out sound-light alarm or stop sound-light alarm.
It is provided by the above embodiment it is a kind of test secondary circuit pressing plate on-off device, by contact device 101 with it is secondary
The connection of circuit pressing plate, and judge whether secondary circuit pressing plate both ends have voltage by circuit for testing voltage 102, portable lighter light report of going forward side by side
It is alert, and the break-make situation of secondary circuit pressing plate is judged by current testing circuit 103, and carry out sound-light alarm or stop acousto-optic report
It is alert, the intuitive accurate judgement to secondary circuit pressing plate break-make situation is realized, the connection of secondary circuit pressing plate greatly improved
Reliability and safety, while the efficiency of work is improved, and the device circuit is simple, is convenient for operation, small in size, weight
Gently, easy to carry, at low cost, there is very strong practicability.
As shown in Fig. 2, in conjunction with Fig. 1, for another embodiment of the present invention provides a kind of test secondary circuit pressing plate on-off
The circuit diagram of device, the circuit include contacting device 101, circuit for testing voltage 102 and current testing circuit 103,
In,
Contacting device 101 includes:
Test pencil 201 is connect with secondary circuit pressing plate；
Test pencil interface 202 is connect with circuit for testing voltage 102 and current testing circuit 103 respectively.
Circuit for testing voltage 102 includes:
Voltage gear switch 203 is connect with the anode of test pencil interface 202；
Fuse 204 is connect with voltage gear switch 203, and fuse 204 is used to work as sealing voltage gear switch 203, measurement two
When the voltage at minor loop pressing plate both ends, circuit is protected；
First resistor 205 is connect with fuse 204；
The anode of first light emitting diode 206, the first light emitting diode 206 is connect with first resistor 205, cathode and test pencil
The cathode of interface 202 connects, after the first light emitting diode 206 is for test pencil connection secondary circuit pressing plate, when secondary circuit pressing plate
When there is voltage at both ends, light warning is carried out.
Current testing circuit 103 includes:
Electric current gear switch 207 is connect with the anode of test pencil interface 202；
Power switch 208 is connect with electric current gear switch 207；
The anode of power supply 209, power supply 209 is connect with power switch 208, and cathode is connect with the cathode of test pencil interface 202；
Intermediate relay 210 is connect with the cathode of electric current gear switch 207 and test pencil interface 202, intermediate relay respectively
210 according to the break-make situation of secondary circuit pressing plate for being attracted or being shorted；
Intermediate relay switch 211 is connect with electric current gear switch 207；
Second resistance 212 is connect with intermediate relay switch 211；
The anode of second light emitting diode 213, the second light emitting diode 213 is connect with second resistance 212, cathode and test pencil
The cathode of interface 202 connects, and the second light emitting diode 213 is used for light warning；
Buzzer 214 is connect with the cathode of intermediate relay switch 211 and test pencil interface 202 respectively, buzzer 214
For audible alarm；
The cathode of Schottky diode 215, Schottky diode 215 is connect with buzzer 214, anode and test pencil interface
202 cathode connection.
Further, the second light emitting diode 213 and buzzer 214 are specifically used for automatic after closed path gear switch 207
Sound-light alarm is carried out, after being also used to test pencil connection secondary circuit pressing plate, when secondary circuit pressing plate normally, stop alarm, when
The non-normally of secondary circuit pressing plate, it is lasting to alarm.
Further, Schottky diode 215 is protection freewheeling diode, for working as closed path gear switch 207, measurement two
When the break-make situation of minor loop pressing plate, circuit is protected.
Further, when secondary circuit pressing plate normally, intermediate relay 210 is shorted, the contact of intermediate relay 210
It disconnects；When the non-normally of secondary circuit pressing plate, intermediate relay 210 obtains electric actuation, and the contact of intermediate relay 210 closes
It closes.
As shown in figure 3, for another embodiment of the present invention provides a kind of test secondary circuit pressing plate on-off method stream
Journey schematic diagram, method includes the following steps:
Whether S301, measurement secondary circuit pressing plate both ends have voltage, if there is voltage, S302 are thened follow the steps, if nothing
Voltage thens follow the steps S303；
S302, disconnects the power supply of secondary circuit, and executes step S303；
S303 tests the break-make situation of secondary circuit pressing plate.
Further, in step S303, comprising:
It is closed the electric current gear switch of test device, test device persistently carries out sound-light alarm；
Test device connection secondary circuit pressing plate is tested, if test device persistently carries out sound-light alarm, table
The bright non-normally of secondary circuit pressing plate；If test device stops sound-light alarm, show secondary circuit pressing plate normally.
It should be understood that a kind of method for testing secondary circuit pressing plate on-off provided by the above embodiment, with other realities of the invention
It is corresponding to apply test device provided in example, and test method provided in this embodiment is respectively in order to realize that Fig. 1 to Fig. 2 is mentioned
Operation and/or function corresponding to the test device of confession, for sake of simplicity, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of circuit, only
A kind of logical function partition, there may be another division manner in actual implementation, such as multiple electricity components or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. it is a kind of test secondary circuit pressing plate on-off device, which is characterized in that including contact device, circuit for testing voltage and
Current testing circuit, wherein
The contact device is connect with the secondary circuit pressing plate, and the contact device is for testing the secondary circuit pressing plate two
Whether end has voltage, and tests the break-make situation of the secondary circuit pressing plate；
The circuit for testing voltage is connect with the contact device, and the circuit for testing voltage is for judging the secondary circuit pressure
Whether board ends have voltage, if there is voltage then carries out light warning；
The current testing circuit is connect with the contact device, and the current testing circuit is for judging the secondary circuit pressure
The break-make situation of plate, and carry out sound-light alarm or stop sound-light alarm；
The contact device includes:
Test pencil is connect with the both ends of the secondary circuit pressing plate, and the test pencil is for measuring secondary circuit pressing plate both ends
The break-make situation of voltage and the secondary circuit pressing plate；
Test pencil interface is connect with the test pencil, the circuit for testing voltage and the current testing circuit respectively；
The current testing circuit includes:
Electric current gear switch is connect with the anode of the test pencil interface；
Power switch is connect with the electric current gear switch, and the power switch is for starting the current testing circuit；
The anode of power supply, the power supply is connect with the power switch, and cathode is connect with the cathode of the test pencil interface, the electricity
Source is used to power for the current testing circuit；
Intermediate relay is connect with the cathode of the electric current gear switch and the test pencil interface, the intermediate relay respectively
For being attracted or being shorted according to the break-make situation of the secondary circuit pressing plate；
Intermediate relay switch, connect with the electric current gear switch；
Second resistance is switched with the intermediate relay and is connected；
The anode of second light emitting diode, second light emitting diode is connect with the second resistance, cathode and the test pencil
The cathode of interface connects, and second light emitting diode is used for light warning；
Buzzer is connect with the cathode of intermediate relay switch and the test pencil interface respectively, and the buzzer is used for
Audible alarm；
Schottky diode, the cathode of the Schottky diode are connect with the buzzer, positive and the test pencil interface
Cathode connection；
When the secondary circuit pressing plate normally, the intermediate relay is shorted, and the contact of the intermediate relay disconnects；
When the non-normally of the secondary circuit pressing plate, the intermediate relay obtains electric actuation, and the contact of the intermediate relay closes
It closes.
2. the apparatus according to claim 1, which is characterized in that the circuit for testing voltage includes:
Voltage gear switch is connect with the anode of the test pencil interface, and the voltage gear switch is for starting the voltage tester electricity
Road；
Fuse is connect with the voltage gear switch, and the fuse is used to measure described two when being closed the voltage gear switch
When the voltage at minor loop pressing plate both ends, circuit is protected；
First resistor is connect with the fuse；
The anode of first light emitting diode, first light emitting diode is connect with the first resistor, cathode and the test pencil
The cathode of interface connects, after first light emitting diode connects the secondary circuit pressing plate for the test pencil, when described two
When there is voltage at minor loop pressing plate both ends, light warning is carried out.
3. the apparatus according to claim 1, which is characterized in that second light emitting diode and the buzzing implement body are used
In carrying out sound-light alarm automatically after being closed the electric current gear switch, it is also used to the test pencil and connects the secondary circuit pressing plate
Afterwards, when the secondary circuit pressing plate normally, stop alarm is lasting to alarm when the non-normally of secondary circuit pressing plate.
4. the apparatus according to claim 1, which is characterized in that the Schottky diode is protection freewheeling diode, is used
In when being closed the electric current gear switch, when measuring the break-make situation of the secondary circuit pressing plate, circuit is protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610922144.1A CN106546866B (en) | 2016-10-21 | 2016-10-21 | A kind of method and device for testing secondary circuit pressing plate on-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610922144.1A CN106546866B (en) | 2016-10-21 | 2016-10-21 | A kind of method and device for testing secondary circuit pressing plate on-off |
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| Publication Number | Publication Date |
|---|---|
| CN106546866A CN106546866A (en) | 2017-03-29 |
| CN106546866B true CN106546866B (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610922144.1A Active CN106546866B (en) | 2016-10-21 | 2016-10-21 | A kind of method and device for testing secondary circuit pressing plate on-off |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942132A (en) * | 2017-11-23 | 2018-04-20 | 中国南方电网有限责任公司超高压输电公司天生桥局 | One kind protection convenient measuring device of platen potential |
| CN109991504B (en) * | 2019-03-19 | 2024-04-16 | 广东电网有限责任公司 | Transformer substation secondary circuit on-off measuring instrument |
| CN113311217A (en) * | 2021-07-02 | 2021-08-27 | 广东电网有限责任公司 | Potential measuring device for protective pressing plate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204190488U (en) * | 2014-09-23 | 2015-03-04 | 广东电网有限责任公司东莞供电局 | A kind of intelligent substation pressing plate monitoring system |
| CN105676048B (en) * | 2016-01-18 | 2018-11-02 | 国网山东省电力公司青岛供电公司 | A kind of switch cabinet of converting station switch secondary circuit detection device |
| CN205427092U (en) * | 2016-01-26 | 2016-08-03 | 国网山东省电力公司青岛供电公司 | Wiring detector |
| CN105785220B (en) * | 2016-05-16 | 2018-05-08 | 国网山东省电力公司滨州供电公司 | A kind of secondary loop in power system regular inspection auxiliary open circuit alert circuit and device |
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