CN113791362A - Uninterrupted leakage protector function testing device and method - Google Patents
Uninterrupted leakage protector function testing device and method Download PDFInfo
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- CN113791362A CN113791362A CN202110919500.5A CN202110919500A CN113791362A CN 113791362 A CN113791362 A CN 113791362A CN 202110919500 A CN202110919500 A CN 202110919500A CN 113791362 A CN113791362 A CN 113791362A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
According to the uninterrupted power supply leakage protector function testing device and method, a user is uninterrupted when the leakage protector function test is realized through the double-circuit change-over switch, the current sensor is configured to detect whether the double-circuit change-over switch normally acts or not, whether the user normally supplies power or not is further judged when the leakage protector function test is performed, the test is performed when the user can normally supply power, and otherwise, the test is stopped to avoid the power failure of the user. Meanwhile, whether the test circuit is normally connected or not is detected through the current sensor, the function test of the leakage protector is carried out under the normal condition of the test circuit, and the test accuracy is ensured. The invention can ensure that the function test of the leakage protector is carried out under the condition that a user does not have power failure, avoids the condition that the user has power failure in the test process, and can effectively ensure the accuracy of the test.
Description
Technical Field
The invention relates to the field of leakage protector testing, in particular to a device and a method for testing functions of a leakage protector without power outage.
Background
According to the requirements of safety regulations, the platform area leakage protector needs to test every month to test the leakage protection function and detect whether the platform area leakage protector can normally act when a user leaks electricity. At present earth-leakage protector's function test process needs earlier the separating brake usually, consequently can lead to whole platform district to have a power failure, and the power failure causes inconvenience for user's power consumption, can exert an influence to production in the mill, reduces production efficiency. The existing uninterrupted power supply detection device can not stably ensure the test under the uninterrupted power supply condition, and the possibility of power failure of a user still exists.
Disclosure of Invention
In order to solve the problems, the invention provides a device and a method for testing the function of a power-uninterrupted leakage protector.
The technical scheme of the invention is as follows: a function test device for a power-uninterrupted leakage protector is characterized in that a power supply end of a transformer area is electrically connected with a first end of the leakage protector through a first cable, a second end of the leakage protector is electrically connected with a user end through a second cable, and the device comprises a third cable, a fourth cable, a double-path change-over switch, a normally open relay, a first current sensor, a second current sensor, a leakage simulation circuit, a detection controller, a first wireless communication module and a test background;
the power supply end of the transformer area is electrically connected with the user end through a third cable; a normally open contact of the two-way change-over switch is connected in series with the third cable, a normally closed contact is connected in series with the second cable, and a control end is electrically connected with the detection controller;
the second end of the leakage protector is electrically connected with one end of the leakage analog circuit through a fourth cable, and the other end of the leakage analog circuit is electrically connected with the detection controller; a normally open contact of the normally open relay is connected in series with the fourth cable, and a control end of the normally open relay is electrically connected with the detection controller;
the detection end of the first current sensor is electrically connected with the third cable, and the output end of the first current sensor is electrically connected with the detection controller; the detection end of the second current sensor is electrically connected with the first cable, and the output end of the second current sensor is electrically connected with the detection controller;
the detection controller tests background wireless communication through the first wireless communication module.
Furthermore, the device also comprises a field controller and a protector action detection circuit, wherein the field controller is electrically connected with the leakage protector through the protector action detection circuit;
the detection controller is electrically connected with the field controller.
Furthermore, the field controller is also electrically connected with a field audible and visual alarm;
the device also comprises a sound sensor which is electrically connected with the detection controller.
Further, the device also comprises a second wireless communication module and a handheld detection terminal;
the second wireless communication module is electrically connected with the detection controller, and the detection controller is in wireless communication with the handheld detection terminal through the second wireless communication module.
Further, the second wireless communication module is bluetooth.
Further, the hand-held detection terminal is provided with a detection program, the detection program comprises,
an instruction transmitting unit: the test controller is used for sending a test starting instruction to the detection controller;
a test result receiving and displaying unit: for receiving and displaying the test results.
The technical scheme of the invention also comprises a method for testing the function of the uninterrupted leakage protector based on any one of the devices, which is executed by the detection controller and comprises the following steps:
s1, receiving a test instruction sent by the test background;
s2, controlling the normally open contact of the two-way change-over switch to be closed and the normally closed contact to be opened, and switching the user side to the power supply side for directly supplying power;
s3, detecting whether the third cable is normally connected or not through the first current sensor, and detecting whether the second cable is normally disconnected or not through the second current sensor;
s4, if the third cable is normally connected and the second cable is normally disconnected, continuing to execute the step S5, otherwise, sending a first alarm signal to the test background and executing the step S10;
s5, controlling the action of the normally open relay to close the normally open contact;
s6, detecting whether the electric leakage analog circuit is normally switched on or not through the second current sensor;
s7, if the leakage simulation circuit is normally connected, the leakage simulation circuit is controlled to perform leakage simulation, and step S8 is executed, otherwise, a second alarm signal is sent to the test background, and step S10 is executed;
s8, detecting whether the leakage protector normally operates through the second current sensor;
s9, if the earth leakage protector works normally, sending the function normal information to the test background, and executing the step S10; otherwise, sending the function abnormality information to the test background, and executing step S10;
s10, controlling the action of the normally open relay to make the normally open contact open; and controlling the normally open contact of the two-way change-over switch to be opened and the normally closed contact to be closed, and switching the user end back to one end of the leakage protector.
Further, if the earth leakage protector normally operates in step S9, the following steps are further performed:
detecting whether the field controller normally sends an alarm short message or not;
if the alarm short message is normally sent, sending the normal information of the alarm short message to a test background, otherwise, sending the abnormal information of the alarm short message to the test background.
Further, if the earth leakage protector normally operates in step S9, the following steps are further performed:
detecting whether the on-site audible and visual alarm gives an alarm normally or not through a sound sensor;
if the alarm is normal, sending normal site alarm information to the test background, otherwise sending abnormal site alarm information to the test background.
According to the uninterrupted power supply leakage protector function testing device and method, a user is uninterrupted when the leakage protector function test is realized through the double-circuit change-over switch, the current sensor is configured to detect whether the double-circuit change-over switch normally acts or not, whether the user normally supplies power or not is further judged when the leakage protector function test is performed, the test is performed when the user can normally supply power, and otherwise, the test is stopped to avoid the power failure of the user. Meanwhile, whether the test circuit is normally connected or not is detected through the current sensor, the function test of the leakage protector is carried out under the normal condition of the test circuit, and the test accuracy is ensured. The invention can ensure that the function test of the leakage protector is carried out under the condition that a user does not have power failure, avoids the condition that the user has power failure in the test process, and can effectively ensure the accuracy of the test.
Drawings
FIG. 1 is a schematic diagram of the wiring schematic of a two-way diverter switch and a normally open relay in accordance with an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a circuit in accordance with an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a second method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
Example one
As shown in fig. 1 and 2, this embodiment provides a device for testing the function of a leakage protector without power outage, in which a power supply terminal 1 in a distribution room is electrically connected to a first terminal of the leakage protector 2 through a first cable 5, a second terminal of the leakage protector 2 is electrically connected to a user terminal 3 through a second cable 6, and in a normal situation, when the user terminal 3 leaks electricity, the leakage protector 2 automatically operates to stop power.
In order to perform a function test on the leakage protector 2, detect whether it can normally act when the user terminal 3 leaks electricity, and simultaneously ensure that the user terminal 3 does not stop power during the test, the device of this embodiment is further provided with a third cable 7, a fourth cable 8, a two-way change-over switch 9, a normally open relay 10, a first current sensor 11, a second current sensor 12, a leakage simulation circuit 4, a detection controller 14, a first wireless communication module 17 and a test background 18.
In the embodiment, the distribution room power supply terminal 1 is also electrically connected with the user terminal 3 through a third cable 7; the normally open contact of the two-way change-over switch 9 is connected in series with the third cable 7, the normally closed contact is connected in series with the second cable 6, and the control end is electrically connected with the detection controller 14. During normal operation, the normally open contact of the two-way change-over switch 9 is opened, the normally closed contact is closed, the user terminal 3 is connected to the power supply terminal 1 through the earth leakage protector 2, and the earth leakage protector 2 is guaranteed to perform earth leakage protection on the user terminal 3. When carrying out functional test to earth-leakage protector 2, detection controller 14 at first controls the normally open contact of double-circuit change over switch 9 closed, and normally closed contact disconnection, user 3 passes through third cable 7 lug connection to feeder ear 1 this moment, continues to be supplied power to user 3 by feeder ear 1, guarantees that user 3 does not have a power failure, and earth-leakage protector 2 vacates simultaneously and can normally carry out functional test.
After the earth leakage protector 2 vacates, this embodiment tests earth leakage protector 2 through electric leakage analog circuit 4, specifically, 2 second ends of earth leakage protector are connected with electric leakage analog circuit 4 one end electricity through third cable 7, and the electric leakage analog circuit 4 other end is connected with detection controller 14 electricity. In addition, for guaranteeing to carry out functional test again under the condition that user side 3 normally switches to the direct power supply of power supply end 1, avoid double-circuit change over switch 9 trouble not normally to move promptly and test, take the risk that user side 3 has a power failure, this embodiment still sets up normally open relay 10, and normally open relay 10's normally open contact concatenates on fourth cable 8, and the control end is connected with detection controller 14 electricity. Under the condition that the user side 3 is normally switched to the power supply end 1 to directly supply power (judged by detection signals of the first current sensor 11 and the second current sensor 12), the normally open relay 10 is controlled to act, so that the normally open contact of the normally open relay is closed, the fourth cable 8 is connected, and the leakage protector 2 is normally connected to the leakage simulation circuit 4.
The detection end of the first current sensor 11 of the present embodiment is electrically connected to the third cable 7, and the output end is electrically connected to the detection controller 14; the detection end of the second current sensor 12 is electrically connected to the first cable 5, and the output end is electrically connected to the detection controller 14. After the action of the two-way change-over switch 9 is controlled, whether the third cable 7 is normally powered on is detected through the first current sensor 11, and whether the second cable 6 is normally powered off is detected through the second current sensor 12, under the condition that the third cable 7 is normally powered on and the second cable 6 is normally powered off, the normal action of the two-way change-over switch 9 is explained, the user terminal 3 can be ensured not to be powered off in the test process, and then the detection controller 14 can execute the subsequent test process. It should be noted that the detection end of the second current sensor 12 is connected to the first cable 5, after the two-way switch 9 is operated and before the test is performed, the earth leakage protector 2 is still in the normally closed state, the first cable 5 and the second cable 6 are in the series connection state, and the detection of the current information on the first cable 5 can indicate the current information on the second cable 6.
In addition, the detection end of the second current sensor 12 is electrically connected with the first cable 5, so that test data can be provided for subsequent tests. For example, after the control normally opens relay 10 is closed, form the return circuit between earth-leakage protector 2 and the electric leakage analog circuit 4, if normally open relay 10 is normally closed, should have the electric current on through second cable 6 this moment, judge through second current sensor 12 detected signal whether normally open relay 10 is normally closed, and then judge whether normally can test, improve the test accuracy. In the test process, when the leakage simulation circuit 4 performs the leakage simulation, if the leakage protector 2 is normal in function, the leakage protector 2 should be disconnected and powered off, the first cable 5 loses current, and at the moment, whether the leakage protector 2 is normal in function is judged through the detection signal of the second current sensor 12.
The detection controller 14 of the present embodiment performs wireless communication in the test background 18 through the first wireless communication module 17, receives a test instruction of the test background 18, and feeds back a test result, related alarm information, and the like to the test background 18.
Generally, a site controller 15 and a protector operation detection circuit are also provided in the station area, and the site controller 15 is electrically connected to the earth leakage protector 2 through the protector operation detection circuit. When the user terminal 3 leaks electricity and the leakage protector 2 normally operates, the field controller 15 sends an alarm short message to related personnel. In order to detect whether the field controller 15 can normally complete the function of sending the alarm short message, the embodiment further electrically connects the detection controller 14 with the field controller 15 to detect whether the field controller 15 normally sends the alarm short message.
In addition, the field controller 15 is also electrically connected with a field audible and visual alarm 16, and when the user terminal 3 leaks electricity and the leakage protector 2 normally operates, the field controller 15 controls the field audible and visual alarm 16 to give an alarm in the field. In order to detect whether the on-site audible and visual alarm 16 can alarm normally, the present embodiment further provides a sound sensor 13, wherein the sound sensor 13 is electrically connected with the detection controller 14, and the sound sensor 13 detects the alarm sound of the on-site audible and visual alarm 16.
Considering that the function test of the earth leakage protector 2 may be abnormal, the maintenance personnel is required to examine and repair the earth leakage protector on site, and for facilitating examination and repair on site, the embodiment further comprises a second wireless communication module 19 and a handheld detection terminal. The second wireless communication module 19 is electrically connected with the detection controller 14, and the detection controller 14 wirelessly communicates with the handheld detection terminal through the second wireless communication module 19. The handheld terminal 20 sends a test instruction to the detection controller 14 and receives feedback data, so that the test by the test background 18 is avoided, and the maintenance efficiency is improved.
Specifically, the handheld detection terminal is provided with a detection program, and the detection program comprises the following functional units.
An instruction transmitting unit: for sending a test start instruction to the detection controller 14;
a test result receiving and displaying unit: for receiving and displaying the test results.
The second wireless communication module 19 of this embodiment is bluetooth, which can meet the field wireless communication requirement.
Example two
As shown in fig. 3, according to the first embodiment, the present embodiment provides a method for testing the function of the leakage protector 2 without power failure, which is executed by the detection controller 14, and includes the following steps.
S1, receives the test command from the test background 18.
The method of the present embodiment is described by taking a normal test as an example, and when the test is abnormal and the field maintenance is performed, the detection controller 14 receives the test instruction sent by the handheld terminal 20 to perform the test.
And S2, controlling the normally open contact of the two-way change-over switch 9 to be closed and the normally closed contact to be opened, and switching the user side 3 to the power supply side 1 for directly supplying power.
S3, the first current sensor 11 detects whether the third cable 7 is normally on, and the second current sensor 12 detects whether the second cable 6 is normally off.
If the third cable 7 is normally connected, the first current sensor 11 detects a current signal. If the second cable 6 is normally disconnected, the second current sensor 12 does not detect the current signal.
S4, if the third cable 7 is normally connected and the second cable 6 is normally disconnected, the method continues to execute step S5, otherwise, the method sends the first alarm signal to the test background 18 and executes step S10.
If the third cable 7 is normally connected and the second cable 6 is normally disconnected, it is indicated that the two-way switch 9 normally operates, and at this time, it can be ensured that the user terminal 3 is not disconnected in the test process, and the test can be continuously performed. Otherwise, a first alarm signal is sent to the test background 18 to inform the test background 18 that the two-way change-over switch 9 does not normally act, the test is terminated, the two-way change-over switch 9 is controlled to reset, the normally-open relay 10 is kept normally open, and the user terminal 3 is normally connected with the power supply terminal 1 through the leakage protector 2.
And S5, controlling the normally open relay 10 to act, and closing the normally open contact.
The two-way change-over switch 9 acts normally and can continue to test, so that the leakage protector 2 is connected to the leakage simulation circuit 4 to connect the test circuit.
S6, the second current sensor 12 detects whether the leakage current simulation circuit 4 is normally turned on.
In order to ensure the test accuracy, after the normally open relay 10 is controlled to act, whether the normally open relay 10 acts normally is detected firstly, namely whether the leakage simulation circuit 4 is normally connected is detected, and the leakage simulation circuit 4 is controlled to perform leakage simulation after the normal connection.
And S7, if the leakage simulation circuit 4 is normally switched on, controlling the leakage simulation circuit 4 to perform leakage simulation, and executing the step S8, otherwise, sending a second alarm signal to the test background 18, and executing the step S10.
If the normally open relay 10 does not normally act, the leakage analog circuit 4 is not normally connected, and if the function test is performed at the moment, the test result is invalid, so that a second alarm signal is sent to the test background 18 to inform that the leakage analog circuit 4 is not normally connected, and the test is terminated.
S8, the second current sensor 12 detects whether the earth-leakage protector 2 is operating normally.
After the leakage simulation circuit 4 is normally turned on, leakage simulation is performed, and whether the leakage protector 2 normally operates or not is detected by the second current sensor 12 in the simulation process. If the earth leakage protector 2 operates normally, the power failure is interrupted, the first cable 5 loses current, and the second current sensor 12 cannot detect a current signal.
S9, if the earth leakage protector 2 is operating normally, sending the information of normal function to the test background 18, and executing the step S10; otherwise, send the functional exception information to the test backend 18, and execute step S10.
And feeding back the test result to the test background 18 in time, and resetting in time after the test is finished.
S10, controlling the action of the normally open relay 10 to make the normally open contact open; and controlling the normally open contact of the two-way change-over switch 9 to be opened and the normally closed contact to be closed, and switching the user terminal 3 back to one end of the electric leakage protector 2.
When the test is finished or the test is abnormal, the device is reset in time, and the time that the user side 3 is not protected by the leakage protector 2 is shortened.
In addition, the present embodiment further detects whether the functions of the field controller 15 and the field audible and visual alarm 16 are normal, and specifically, if the leakage protector 2 operates normally in step S9, the following steps are further performed:
detecting whether the field controller 15 normally sends an alarm short message;
if the alarm short message is normally sent, sending the normal information of the alarm short message to the test background 18, otherwise sending the abnormal information of the alarm short message to the test background 18;
whether the on-site audible and visual alarm 16 gives an alarm normally is detected through the sound sensor 13;
if the alarm is normal, the normal field alarm information is sent to the test background 18, otherwise the abnormal field alarm information is sent to the test background 18.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A function test device for a power-uninterrupted leakage protector is characterized in that a power supply end of a transformer area is electrically connected with a first end of the leakage protector through a first cable, and a second end of the leakage protector is electrically connected with a user end through a second cable;
the power supply end of the transformer area is electrically connected with the user end through a third cable; a normally open contact of the two-way change-over switch is connected in series with the third cable, a normally closed contact is connected in series with the second cable, and a control end is electrically connected with the detection controller;
the second end of the leakage protector is electrically connected with one end of the leakage analog circuit through a fourth cable, and the other end of the leakage analog circuit is electrically connected with the detection controller; a normally open contact of the normally open relay is connected in series with the fourth cable, and a control end of the normally open relay is electrically connected with the detection controller;
the detection end of the first current sensor is electrically connected with the third cable, and the output end of the first current sensor is electrically connected with the detection controller;
the detection end of the second current sensor is electrically connected with the first cable, and the output end of the second current sensor is electrically connected with the detection controller;
the detection controller tests background wireless communication through the first wireless communication module.
2. The uninterrupted leakage protector function testing device of claim 1, further comprising a field controller and a protector action detection circuit, wherein the field controller is electrically connected with the leakage protector through the protector action detection circuit;
the detection controller is electrically connected with the field controller.
3. The uninterrupted power supply leakage protector function testing device of claim 2, wherein the field controller is further electrically connected with a field audible and visual alarm;
the device also comprises a sound sensor which is electrically connected with the detection controller.
4. The device for testing the function of the uninterruptible power leakage protector is characterized by further comprising a second wireless communication module and a handheld detection terminal;
the second wireless communication module is electrically connected with the detection controller, and the detection controller is in wireless communication with the handheld detection terminal through the second wireless communication module.
5. The device for testing the function of the uninterruptible power leakage protector as claimed in claim 4, wherein the second wireless communication module is Bluetooth.
6. The device for testing the function of an uninterruptible power supply leakage protector as claimed in claim 5, wherein the handheld detection terminal is configured with a detection program comprising,
an instruction transmitting unit: the test controller is used for sending a test starting instruction to the detection controller;
a test result receiving and displaying unit: for receiving and displaying the test results.
7. A method for testing the function of a non-power-off leakage protector based on the device of any one of claims 1-6, which is executed by a detection controller and comprises the following steps:
s1, receiving a test instruction sent by the test background;
s2, controlling the normally open contact of the two-way change-over switch to be closed and the normally closed contact to be opened, and switching the user side to the power supply side for directly supplying power;
s3, detecting whether the third cable is normally connected or not through the first current sensor, and detecting whether the second cable is normally disconnected or not through the second current sensor;
s4, if the third cable is normally connected and the second cable is normally disconnected, continuing to execute the step S5, otherwise, sending a first alarm signal to the test background and executing the step S10;
s5, controlling the action of the normally open relay to close the normally open contact;
s6, detecting whether the electric leakage analog circuit is normally switched on or not through the second current sensor;
s7, if the leakage simulation circuit is normally connected, the leakage simulation circuit is controlled to perform leakage simulation, and step S8 is executed, otherwise, a second alarm signal is sent to the test background, and step S10 is executed;
s8, detecting whether the leakage protector normally operates through the second current sensor;
s9, if the earth leakage protector works normally, sending the information of normal function to the test background, and executing the step
S10; otherwise, sending the function abnormality information to the test background, and executing step S10;
s10, controlling the action of the normally open relay to make the normally open contact open; and controlling the normally open contact of the two-way change-over switch to be opened and the normally closed contact to be closed, and switching the user end back to one end of the leakage protector.
8. The method for testing the function of an uninterruptible power supply leakage protector as claimed in claim 7, wherein the step of testing the function of the uninterruptible power supply leakage protector is performed by
If the earth leakage protector normally operates in S9, the following steps are further executed:
detecting whether the field controller normally sends an alarm short message or not;
if the alarm short message is normally sent, sending the normal information of the alarm short message to a test background, otherwise, sending the abnormal information of the alarm short message to the test background.
9. The method for testing the function of an uninterruptible power supply leakage protector as claimed in claim 8, wherein the step of testing the function of the uninterruptible power supply leakage protector is performed by
If the earth leakage protector normally operates in S9, the following steps are further executed:
detecting whether the on-site audible and visual alarm gives an alarm normally or not through a sound sensor;
if the alarm is normal, sending normal site alarm information to the test background, otherwise sending abnormal site alarm information to the test background.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597140A (en) * | 2016-08-30 | 2017-04-26 | 中山市开普电器有限公司 | Earth leakage protection device overload testing device |
| CN207198256U (en) * | 2017-08-23 | 2018-04-06 | 济南龙航电力设备有限公司 | A kind of low-voltage leakage protector does not have a power failure remotely Auto-Test System |
| CN108061838A (en) * | 2017-12-18 | 2018-05-22 | 淄博职业学院 | A kind of leakage tests method for ensureing user's normal electricity consumption |
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- 2021-08-11 CN CN202110919500.5A patent/CN113791362A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597140A (en) * | 2016-08-30 | 2017-04-26 | 中山市开普电器有限公司 | Earth leakage protection device overload testing device |
| CN207198256U (en) * | 2017-08-23 | 2018-04-06 | 济南龙航电力设备有限公司 | A kind of low-voltage leakage protector does not have a power failure remotely Auto-Test System |
| CN108061838A (en) * | 2017-12-18 | 2018-05-22 | 淄博职业学院 | A kind of leakage tests method for ensureing user's normal electricity consumption |
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