CN110658371A - Remote control voltage regulation test power supply and test method - Google Patents
Remote control voltage regulation test power supply and test method Download PDFInfo
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- CN110658371A CN110658371A CN201911067717.7A CN201911067717A CN110658371A CN 110658371 A CN110658371 A CN 110658371A CN 201911067717 A CN201911067717 A CN 201911067717A CN 110658371 A CN110658371 A CN 110658371A
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- 238000001514 detection method Methods 0.000 claims abstract description 20
- 230000001012 protector Effects 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 3
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- 238000012986 modification Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
A remote control voltage regulation test power supply and a test method realize that three persons, namely an operator, a special custodian and a working responsible person, control the test power supply, and ensure the personal safety and the equipment safety. The remote control device comprises an external power input end, an air switch, a leakage protector, a double-blade disconnecting link, a voltage regulator, a first remote control unit and a second remote control unit, wherein the first remote control unit consists of a first wireless remote controller and a first remote control receiving module; the first control unit consists of a first microprocessor module, a first relay control circuit, a first alternating current contactor and contact, a first contactor state detection circuit and a first contactor state prompt circuit, and the second control unit consists of a second microprocessor module, a second relay control circuit, a second alternating current contactor and contact, a second contactor state detection circuit and a second handover contactor state prompt circuit.
Description
Technical Field
The invention relates to a remote control voltage regulation test power supply and a test method for an electric power system.
Background
Before the high-voltage withstand voltage test is carried out on site, according to the requirement of the power system safety work code 11.1.6, an operator should obtain the permission of a test responsible person (or a guardian) before pressurization, and the operator can pressurize. However, due to the fact that actual conditions of the site are complex, the procedure executed on the site only stays on the head, the actual application control right of the electrical test power supply control box is only mastered in hands of operators, and therefore great potential safety hazards are brought to safety.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a remote control voltage regulation test power supply and a test method, which can realize the control of the test power supply by three operators, work responsible persons and special custodians and ensure the safety of human bodies and equipment.
The technical solution of the invention is as follows:
remote control voltage regulation test power, including external power input end, air switch, earth-leakage protector and the twolip switch of establishing ties, the voltage regulator, its special character is: the system also comprises a first remote control unit consisting of a first wireless remote controller and a first remote control receiving module, and a second remote control unit consisting of a second wireless remote controller and a second remote control receiving module, wherein the frequency points of the first remote control unit and the second remote control unit are different; the first control unit consists of a first microprocessor module, a first relay control circuit, a first alternating current contactor and contact, a first contactor state detection circuit and a first contactor state prompt circuit, and the second control unit consists of a second microprocessor module, a second relay control circuit, a second alternating current contactor and contact, a second contactor state detection circuit and a second cross contactor state prompt circuit;
the first alternating current contactor main normally open contact and the second alternating current contactor main normally open contact are connected in series between the double-blade disconnecting link output end and the voltage regulator input end, and form a main loop with an external power supply input end, an air switch, a leakage protector, the double-blade disconnecting link and the voltage regulator which are connected in series;
the first wireless remote control receiving module is connected with a control signal input end of the first microprocessor module and used for sending a main loop connection and disconnection command to the first microprocessor module, the first relay control circuit is connected between a control signal output end of the first microprocessor module and the first alternating current contactor, the first relay control circuit controls a coil of the first alternating current contactor to be powered on or powered off after receiving a control signal output by the first microprocessor module and enables the main loop to be connected and disconnected through attraction and attraction of a main normally open contact of the alternating current contactor, the first contactor state detection circuit is connected with an auxiliary contact of the first alternating current contactor and used for detecting whether the auxiliary normally open contact of the first alternating current contactor is attracted and sending the attraction state of the corresponding main normally open contact of the first alternating current contactor to the first microprocessor module after attraction of the auxiliary normally open contact of the first alternating current contactor, after receiving the signal, the first microprocessor module enables a first contactor state prompting circuit connected with the first microprocessor module to send out voice and light prompts; the second control unit has the same structure and function as the first control unit.
Furthermore, a first voltmeter is connected in parallel with the input end of the power supply, a second voltmeter is connected in parallel with the output end of the voltage regulator, and the first voltmeter and the second voltmeter form a voltage detection unit which is used for monitoring the input voltage and the output voltage at any time.
Furthermore, the power supply ends of the first remote control receiving module and the second remote control receiving module are respectively connected with the power supply through a first control switch and a second control switch, and one or two wireless remote controllers are determined to be used through the control switches.
Further, the first contactor state indicating circuit comprises a first indicating lamp and a first voice module, and the second contactor state indicating circuit comprises a second indicating lamp and a second voice module.
The test method of the remote control voltage-regulating test power supply comprises the following steps:
1. the power supply input end is connected with a 220V alternating current power supply; after the person responsible for monitoring and the working person in charge agree, the person responsible for monitoring and the working person press the connection keys of the first wireless remote controller and the second remote controller which are controlled by the person responsible for monitoring and the working person, the first remote control unit sends a connection signal to the first microprocessor module, the main normally open contact and the auxiliary normally open contact of the first alternating current contactor in the first control unit are attracted, the first contactor state detection circuit sends a connection signal to the first microprocessor module, and the first contactor state prompt circuit sends a test prompt that the person responsible for monitoring finishes the test; the main normally open contact and the auxiliary normally open contact of the second alternating current contactor are closed, and the second contactor state prompting circuit sends out a test prompt that the inspection of a working responsible person is finished;
2. after obtaining the test prompt, the operator closes the double-edge disconnecting link, switches on the 220V alternating current power supply, and automatically or manually pressurizes; in the pressurizing process, once an equipment discharge fault occurs or a person mistakenly breaks into a pressurizing place and needs to cut off a power supply, when an operator does not find the fault, a working responsible person or a special guardian presses a wireless remote controller controlled by the working responsible person or the special guardian, after a corresponding control unit receives a signal, a corresponding relay control circuit or a corresponding alternating current contactor coil loses power, a main normally open contact of the alternating current contactor is disconnected, the power supply is cut off rapidly, and the personal safety and the equipment safety are guaranteed.
Furthermore, when a short-distance withstand voltage test is carried out, the control switch I or the control switch II is switched off, so that the corresponding remote control unit and the control unit exit, and a person responsible for supervision carries a remote controller to carry out test control.
Furthermore, before the control switch I or the control switch II is turned off, the corresponding main normally open contact of the alternating current contactor is in a connection state by using a remote control unit and a control unit corresponding to the control switch to be turned off in advance.
Furthermore, a first voltmeter is connected in parallel at the input end of the power supply, a second voltmeter is connected in parallel at the output end of the voltage regulator, the first voltmeter and the second voltmeter form a voltage detection unit, and the input voltage and the output voltage are monitored at any time by using the first voltmeter.
The invention has the beneficial effects that: light weight, convenient carrying, simple wiring and safe operation. Two independent remote control devices are adopted, double-control protection is realized through two remote control units, the test power supply is controlled together, and before the operator pressurizes each time, the test power supply cannot be switched on after the operator is not agreed by a work responsible person and/or a special care guardian. Two sets of control units are additionally arranged in the circuit to form double insurance, so that the situation that an operator happens to be not found by a working responsible person due to unsmooth communication, lag or emergency situations is avoided, and a person in charge of special supervision can use a wireless remote controller to cut off a test power supply at the first time. Therefore, the purpose of controlling the power supply by three parties, namely a responsible guardian, a working responsible person and an operator, is achieved, and the purpose of quickly and accurately cutting off the test power supply when a person breaks into the equipment test barrier or is abnormal by the test equipment in the test process is achieved. The two remote control units have different frequency points, and the phenomenon of error control of the two control units can not occur.
Drawings
Fig. 1 is a circuit configuration diagram of the present invention.
Detailed Description
As shown in the figure, remote control voltage regulation test power supply, including external power input end, air switch, earth-leakage protector and the twolip switch of establishing ties, the voltage regulator, its special character is: the system also comprises a first remote control unit consisting of a first wireless remote controller and a first remote control receiving module, and a second remote control unit consisting of a second wireless remote controller and a second remote control receiving module, wherein the frequency points of the first remote control unit and the second remote control unit are different; the first control unit consists of a first microprocessor module, a first relay control circuit, a first alternating current contactor and a contact, a first contactor state detection circuit and a first contactor state prompt circuit, and the second control unit consists of a second microprocessor module, a second relay control circuit, a second alternating current contactor and a contact, a second contactor state detection circuit and a second contactor state prompt circuit; the micro-processing module adopts a 51-series single chip microcomputer.
The first alternating current contactor main normally open contact and the second alternating current contactor main normally open contact are connected in series between the double-blade disconnecting link output end and the voltage regulator input end, and form a main loop with an external power supply input end, an air switch, a leakage protector, the double-blade disconnecting link and the voltage regulator which are connected in series;
the first remote control receiving module is connected with a control signal input end of the first microprocessor module and used for sending a main loop connection and disconnection command to the first microprocessor module, the first relay control circuit is connected between a control signal output end of the first microprocessor module and the first alternating current contactor, the first alternating current contactor coil is controlled to be powered on or powered off after the first relay control circuit receives a control signal output by the first microprocessor module, the main loop is connected and disconnected through attraction or disconnection of a main normally open contact of the alternating current contactor, the first contactor state detection circuit is connected with an auxiliary contact of the first alternating current contactor and used for detecting whether the auxiliary normally open contact of the first alternating current contactor is attracted and sending a corresponding attraction state of the main normally open contact of the first alternating current contactor to the first microprocessor module after the auxiliary normally open contact of the first alternating current contactor is attracted, and the first microprocessor module receives the signal and then sends a first contactor state prompt circuit connected with the first microprocessor module out Voice and light prompt signals; the second control unit has the same structure and function as the first control unit.
Further, the first contactor state indicating circuit comprises a first indicating lamp and a first voice module, and the second contactor state indicating circuit comprises a second indicating lamp and a second voice module.
Furthermore, a first voltmeter is connected in parallel with the input end of the power supply, a second voltmeter is connected in parallel with the output end of the voltage regulator, and the first voltmeter and the second voltmeter form a voltage detection unit which is used for monitoring the input voltage and the output voltage at any time.
Furthermore, the power supply ends of the first remote control receiving module and the second remote control receiving module are respectively connected with the power supply through a first control switch and a second control switch, and one or two wireless remote controllers are determined to be used through the control switches.
The test process comprises the following steps:
1. the power supply input end is connected with a 220V alternating current power supply; after the person responsible for monitoring and the person responsible for work agree, the person responsible for monitoring and the person responsible for work press the connection keys of the first wireless remote controller and the second remote controller which are controlled by the person responsible for monitoring and the person responsible for work, the first remote control unit sends a connection signal to the first microprocessor module, a main normally open contact and an auxiliary normally open contact of a first alternating current contactor in the first control unit are attracted, the first contactor state detection circuit sends a connection signal to the first microprocessor module, an indicator lamp in the first contactor state prompt circuit is on, and the voice module sends out a prompt that the person responsible for monitoring and the work can complete the test; the main normally open contact and the auxiliary normally open contact of the second alternating current contactor are sucked, an indicator lamp II in a state prompting circuit of the second contactor is lightened, and a voice module II sends out a test prompt that the inspection of a working responsible person is finished;
2. after obtaining the test prompt, the operator closes the double-edge disconnecting link, switches on the 220V alternating current power supply, and automatically or manually pressurizes; in the pressurizing process, once an equipment discharge fault occurs or a person mistakenly breaks into a pressurizing place and needs to cut off a power supply, when an operator does not find the fault, a working responsible person or a special guardian presses a wireless remote controller controlled by the working responsible person or the special guardian, after a corresponding control unit receives a signal, a corresponding relay control circuit or a corresponding alternating current contactor coil loses power, a main normally open contact of the alternating current contactor is disconnected, the power supply is cut off rapidly, and the personal safety and the equipment safety are guaranteed.
Furthermore, when a short-distance withstand voltage test is carried out, the control switch I or the control switch II is switched off, so that the corresponding remote control unit and the control unit exit, and a person responsible for supervision carries a remote controller to carry out test control.
Furthermore, before the control switch I or the control switch II is turned off, the corresponding main normally open contact of the alternating current contactor is in a connection state by using a remote control unit and a control unit corresponding to the control switch to be turned off in advance.
Furthermore, a first voltmeter is connected in parallel at the input end of the power supply, a second voltmeter is connected in parallel at the output end of the voltage regulator, the first voltmeter and the second voltmeter form a voltage detection unit, and the input voltage and the output voltage are monitored at any time by using the first voltmeter.
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Remote control pressure regulating test power, including external power input end, air switch, earth-leakage protector and the twolip switch of establishing ties, the voltage regulator, characterized by: the system also comprises a first remote control unit consisting of a first wireless remote controller and a first remote control receiving module, and a second remote control unit consisting of a second wireless remote controller and a second remote control receiving module, wherein the frequency points of the first remote control unit and the second remote control unit are different; the first control unit consists of a first microprocessor module, a first relay control circuit, a first alternating current contactor and contact, a first contactor state detection circuit and a first contactor state prompt circuit, and the second control unit consists of a second microprocessor module, a second relay control circuit, a second alternating current contactor and contact, a second contactor state detection circuit and a second cross contactor state prompt circuit;
the first alternating current contactor main normally open contact and the second alternating current contactor main normally open contact are connected in series between the double-blade disconnecting link output end and the voltage regulator input end, and form a main loop with an external power supply input end, an air switch, a leakage protector, the double-blade disconnecting link and the voltage regulator which are connected in series;
the first wireless remote control receiving module is connected with a control signal input end of the first microprocessor module and used for sending a main loop connection and disconnection command to the first microprocessor module, the first relay control circuit is connected between a control signal output end of the first microprocessor module and the first alternating current contactor, the first relay control circuit controls a coil of the first alternating current contactor to be powered on or powered off after receiving a control signal output by the first microprocessor module and enables the main loop to be connected and disconnected through attraction and attraction of a main normally open contact of the alternating current contactor, the first contactor state detection circuit is connected with an auxiliary contact of the first alternating current contactor and used for detecting whether the auxiliary normally open contact of the first alternating current contactor is attracted and sending the attraction state of the corresponding main normally open contact of the first alternating current contactor to the first microprocessor module after attraction of the auxiliary normally open contact of the first alternating current contactor, after receiving the signal, the first microprocessor module enables a first contactor state prompting circuit connected with the first microprocessor module to send out voice and light prompts; the second control unit has the same structure and function as the first control unit.
2. The remote control voltage regulation test power supply of claim 1, wherein: the input end of the power supply is connected with a first voltmeter in parallel, the output end of the voltage regulator is connected with a second voltmeter in parallel, and the first voltmeter and the second voltmeter form a voltage detection unit which is used for monitoring the input voltage and the output voltage at any time.
3. The remote control voltage regulation test power supply of claim 1, wherein: the power supply ends of the first remote control receiving module and the second remote control receiving module are respectively connected with a power supply through a first control switch and a second control switch, and one or two wireless remote controllers are determined to be used through the control switches.
4. The remote control voltage regulation test power supply of claim 1, wherein: the first contactor state indicating circuit comprises a first indicating lamp and a first voice module, and the second contactor state indicating circuit comprises a second indicating lamp and a second voice module.
5. The test method for remote control voltage regulation by adopting the remote control voltage regulation test power supply as claimed in claim 1 is characterized in that: the method comprises the following steps:
1) the power supply input end is connected with a 220V alternating current power supply; after the person responsible for monitoring and the working person in charge agree, the person responsible for monitoring and the working person press the connection keys of the first wireless remote controller and the second remote controller which are controlled by the person responsible for monitoring and the working person, the first remote control unit sends a connection signal to the first microprocessor module, the main normally open contact and the auxiliary normally open contact of the first alternating current contactor in the first control unit are attracted, the first contactor state detection circuit sends a connection signal to the first microprocessor module, and the first contactor state prompt circuit sends a test prompt that the person responsible for monitoring finishes the test; the main normally open contact and the auxiliary normally open contact of the second alternating current contactor are closed, and the second contactor state prompting circuit sends out a test prompt that the inspection of a working responsible person is finished;
2) after obtaining the test prompt, the operator closes the double-edge disconnecting link, switches on the 220V alternating current power supply, and automatically or manually pressurizes; in the pressurizing process, once an equipment discharge fault occurs or a person mistakenly breaks into a pressurizing place and needs to cut off a power supply, when an operator does not find the fault, a working responsible person or a special guardian presses a wireless remote controller controlled by the working responsible person or the special guardian, after a corresponding control unit receives a signal, a corresponding relay control circuit or a corresponding alternating current contactor coil loses power, a main normally open contact of the alternating current contactor is disconnected, the power supply is cut off rapidly, and the personal safety and the equipment safety are guaranteed.
6. The test method for remote voltage regulation according to claim 5, wherein: when a short-distance voltage withstand test is carried out, the control switch I or the control switch II is switched off, so that the corresponding remote control unit and the control unit exit, and a special guardian carries a remote controller to carry out test control.
7. The test method for remote voltage regulation according to claim 6, wherein: before the control switch I or the control switch II is turned off, the corresponding main normally open contact of the alternating current contactor is in a connected state by using a remote control unit and a control unit corresponding to the control switch to be turned off in advance.
8. The test method for remote voltage regulation according to claim 5, wherein: the input end of the power supply is connected with a first voltmeter in parallel, the output end of the voltage regulator is connected with a second voltmeter in parallel, the first voltmeter and the second voltmeter form a voltage detection unit, and the first voltmeter and the second voltmeter are used for monitoring input voltage and output voltage at any time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911067717.7A CN110658371A (en) | 2019-11-05 | 2019-11-05 | Remote control voltage regulation test power supply and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911067717.7A CN110658371A (en) | 2019-11-05 | 2019-11-05 | Remote control voltage regulation test power supply and test method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213575A (en) * | 2020-09-08 | 2021-01-12 | 国网福建省电力有限公司检修分公司 | Electrical test prevents accidental injury device |
| CN112290317A (en) * | 2020-10-23 | 2021-01-29 | 贵州电网有限责任公司 | Quick-connection remote control power supply device and use method thereof |
| CN113687173A (en) * | 2021-09-13 | 2021-11-23 | 广东电网有限责任公司 | Secondary circuit testing device and testing method thereof |
-
2019
- 2019-11-05 CN CN201911067717.7A patent/CN110658371A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213575A (en) * | 2020-09-08 | 2021-01-12 | 国网福建省电力有限公司检修分公司 | Electrical test prevents accidental injury device |
| CN112290317A (en) * | 2020-10-23 | 2021-01-29 | 贵州电网有限责任公司 | Quick-connection remote control power supply device and use method thereof |
| CN113687173A (en) * | 2021-09-13 | 2021-11-23 | 广东电网有限责任公司 | Secondary circuit testing device and testing method thereof |
| CN113687173B (en) * | 2021-09-13 | 2024-04-02 | 广东电网有限责任公司 | Secondary circuit test device and test method thereof |
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