CN117471198A - Spare power automatic switching device for uninterrupted power detection and loop method thereof - Google Patents
Spare power automatic switching device for uninterrupted power detection and loop method thereof Download PDFInfo
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- CN117471198A CN117471198A CN202311180265.XA CN202311180265A CN117471198A CN 117471198 A CN117471198 A CN 117471198A CN 202311180265 A CN202311180265 A CN 202311180265A CN 117471198 A CN117471198 A CN 117471198A
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- 238000006243 chemical reaction Methods 0.000 claims description 10
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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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
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Abstract
The invention relates to the technical field of spare power automatic switching detection, and discloses a method for detecting a spare power automatic switching device and a loop thereof without power failure, wherein a test host is arranged at one side of the spare power automatic switching device, and test slaves are connected to each breaker; the test host simulates fault and outputs the fault to the spare power automatic switching device, the spare power automatic switching device sends related switching value signals to the test host, and the test host sends low-frequency weak current signals to the corresponding test slave after receiving the power frequency signals; after the corresponding test slave machine collects the low-frequency weak current signal sent by the test host machine, the test slave machine sends another low-frequency weak current signal to the test host machine; after receiving the low-frequency weak current signal sent by the testing slave, the testing host outputs a power frequency signal to the spare power automatic switching device, and the spare power automatic switching device and a loop thereof are detected without power outage. The invention can detect each function of the spare power automatic switching device and can also detect the outer loop of the spare power automatic switching device without power failure.
Description
Technical Field
The invention relates to the technical field of automatic spare power switching device testing, in particular to a method for detecting an automatic spare power switching device and a loop thereof without power failure.
Background
The automatic switching device of the standby power supply is an automatic device which can automatically and rapidly switch the standby power supply into operation or switch a user to the standby power supply after the working power supply is disconnected due to faults, so that the user is not powered off, and the automatic switching device is short for standby power supply automatic switching device. The automatic standby power switching device is reliably powered off and the circuit thereof needs an effective checking means to ensure the stability and reliability of the automatic standby power switching device and the safety and correctness of the circuit thereof, and the automatic standby power switching device can timely switch on the standby power under various emergency conditions of a power grid.
The original automatic backup switching tester can test various functions of the automatic backup switching device, but the external loop of the automatic backup switching device cannot be detected without power failure, the external loop of the automatic backup switching device is the key content to be detected, the power supply reliability is also affected if the power failure is detected, and the power grid risk is increased in the power failure operation process, so that a safer, more reliable and efficient automatic backup switching detection method is necessary to be found.
Disclosure of Invention
The invention aims to: aiming at the defects of the prior art, the invention provides a spare power automatic switching device and a method for detecting a loop thereof without power failure, and solves the problem that the existing tester cannot detect without power failure.
The technical scheme is as follows: the invention discloses a backup power automatic switching device and a method for detecting a loop thereof without power outage, comprising the following steps:
step 1: a testing host is arranged on a screen cabinet terminal block of the spare automatic switching device, and a testing slave is connected to each breaker terminal box and completes wiring;
step 2: testing the addition of a host, namely adding current and voltage and switching positions to the automatic backup switching device, simulating faults by the test host after the charging condition of the automatic backup switching device is met, setting analog quantity and switching value parameters, and outputting analog quantity parameter signals and switching value parameter signals to the automatic backup switching device to enable the automatic backup switching device to act;
step 3: the standby automatic switching device sends relevant switching value signals to a test host according to action conditions, the test host receives power frequency signals, and after operation processing, relevant switching value parameter signals wait for turning, namely 0/1 wait for conversion, on one hand, the relevant switching value parameters and corresponding analog value parameters are waited for updating, a wait state is set, and on the other hand, low-frequency weak current signals are sent to corresponding test slaves;
step 4: after the corresponding test slave machine collects the low-frequency weak current signal sent by the test host machine, the test slave machine sends another low-frequency weak current signal to the test host machine;
step 5: after receiving the low-frequency weak current signal sent by the test slave, the test host carries out operation processing on the low-frequency weak current signal, and confirms the overturn of the related switching value parameter signal, namely 0/1 confirmation conversion, on one hand, confirms updating of the related switching value parameter and the corresponding analog value parameter, sets the confirmation state, and on the other hand, outputs the power frequency signal to the spare power automatic switching device, thereby completing the spare power automatic switching device and the loop thereof without power failure detection.
Further, the test host outputs analog quantity signals and inputs and outputs switching quantity signals with different frequencies, and the test host comprises a power module, an interface module, a man-machine interaction module and an operation module; the interface module is used for connecting internal and external wiring of the test host, converting and transmitting the input switching value to the operation module, the man-machine interaction module is used for displaying and setting operation of the interface, converting and transmitting the setting content to the operation module, and the operation module is used for carrying out operation processing on each parameter transmitted by the interface module and the man-machine interaction module;
the testing slaves are mutually independent, and each testing slave inputs and outputs switching value signals with different frequencies and comprises a power supply module, an interface module, an acquisition module and an operation module; the power module is responsible for providing working power for the testing slave machine, the interface module is responsible for connecting the internal and external wiring of the slave machine, and converting and transmitting the input switching value to the operation module, the acquisition module is responsible for acquiring different low-frequency weak current signals in the secondary cable core wire, converting and transmitting the signals to the operation module, and the operation module is responsible for carrying out operation processing on each parameter transmitted in the interface module and the acquisition module.
Further, the wiring between the test master and the test slave is completed in the step 1, which is specifically as follows:
the interface module of the test host is provided with a plurality of interfaces, including an analog output interface C2, a switching value signal input interface B2, a switching value signal output interface A2, a low-frequency signal input interface D2 and a low-frequency signal output interface E2; the analog quantity output interface C2 is used for being connected with analog quantity signals of the spare automatic switching device, the switching quantity signal input interface B2 is used for being connected with switching quantity output signals of the spare automatic switching device, the switching quantity signal output interface A2 is used for being connected with switching quantity input signals of the spare automatic switching device, the low-frequency signal input interface D2 is used for being connected with switching quantity output signals of all the test slaves, and the low-frequency signal output interface E2 is used for being connected with switching quantity input signals of all the test slaves;
the interface modules of the test slaves are respectively provided with a plurality of interfaces, each interface comprises a low-frequency signal input interface and a low-frequency signal output interface, wherein the low-frequency signal input interfaces are connected with calipers and are used for collecting output signals of the low-frequency signal output interface E2 of the test host, and the low-frequency signal output interfaces are used for being connected with the low-frequency signal input interface D2 of the test host.
The method comprises the steps that the inner side of a terminal block of a spare automatic switching device, namely a device side wiring, namely current voltage, tripping and closing and switching positions are respectively connected to a switching value signal input interface A2, a switching value signal output interface B2 and an analog value output interface C2 port of a test host;
connecting the outer side of the terminal strip, namely the wiring of the side of the circuit breaker, namely the tripping and closing, and the switching and closing positions to a low-frequency signal input interface D2 and a low-frequency signal output interface E2 of the test host respectively;
and a plurality of test slaves are respectively connected into the terminal box, the acquisition calipers of each test slave are clamped on the tripping and closing loop line of the corresponding loop, and the low-frequency signal output interface is connected with the auxiliary contact switching and positioning terminal of the circuit breaker.
Further, the analog output interface C2 in the test host interface module is provided with a group of multiple interfaces, and each interface is correspondingly connected with one current or voltage wiring terminal of the spare power automatic switching device;
the switching value signal input interface B2 in the test host interface module is provided with a group of multiple interfaces, and each interface is correspondingly connected with one tripping and closing wiring terminal of the spare power automatic switching device;
the switching value signal output interface A2 in the test host interface module is provided with a group of multiple interfaces, and each interface is correspondingly connected with a connection terminal at a switching position of the spare power automatic switching device;
the low-frequency signal input interface D2 in the test host interface module is provided with a plurality of interfaces, each interface can be correspondingly connected with a low-frequency signal output interface of a test slave, and one interface in the low-frequency signal input interface D2 of the test host corresponds to one low-frequency signal output interface of the test slave one by one;
the low-frequency signal output interface E2 in the test host interface module is provided with a plurality of interfaces, each interface is correspondingly connected with a low-frequency signal input interface of a test slave, and one interface in the low-frequency signal output interface E2 of the test host is in one-to-one correspondence with the low-frequency signal input interface of the test slave.
Further, the signal transmission between the test master and the test slave is specifically as follows:
the test host computer sends low-frequency weak current signals through the secondary cable core wire as a medium, each test slave computer collects the low-frequency weak current signals sent by the test host computer in the secondary cable core wire through the calipers, each test slave computer sends different low-frequency weak current signals through the secondary cable core wire as a medium, and the test host computer collects the low-frequency weak current signals sent by the test slave computers in the secondary cable core wire.
Further, the test host sets analog quantity and switching quantity parameters through the man-machine interaction module, outputs analog quantity parameter signals from the analog quantity output interface C2 to the standby power automatic switching device, outputs switching quantity parameter signals from the switching quantity signal output interface A2 to the standby power automatic switching device, and sends relevant switching quantity signals to the switching quantity signal input interface B2 of the test host according to action conditions, and the test host waits for turning over the relevant switching quantity parameter signals after the switching quantity signals sent by the standby power automatic switching device are subjected to operation processing of the operation module, namely 0/1 wait for conversion, on one hand, the relevant switching quantity parameters and corresponding analog quantity parameters are waited to be updated through the man-machine interaction module, the standby state is entered, and on the other hand, a low-frequency weak electric signal is sent from the low-frequency signal output interface E2 to the low-frequency signal input interface of the corresponding test slave through the secondary cable core wire.
Further, after the corresponding test slave machine collects the low-frequency weak current signal sent by the test host machine through the calipers of the collecting module, the test slave machine sends another low-frequency weak current signal to the low-frequency signal input interface D2 of the test host machine from the low-frequency signal output interface through the secondary cable core wire.
Further, after the low-frequency signal input interface D2 of the test host receives the low-frequency weak current signal sent by the test slave, the low-frequency weak current signal is processed by the operation module, and then the relevant switching value parameter signal is confirmed and turned over, namely 0/1 is confirmed and converted, on one hand, the relevant switching value parameter and the corresponding analog value parameter are confirmed and updated through the man-machine interaction module, and enter a confirmation state, and on the other hand, the relevant switching value parameter and the corresponding analog value parameter are output to the spare power automatic switching device through the switching value signal output interface A2.
Advantageous effects
1. The invention not only can detect each function of the spare power automatic switching device, but also can detect the outer loop of the spare power automatic switching device without power failure, ensure the correct action of the spare power automatic switching device and the loop thereof, and improve the power supply reliability of a power system.
2. The invention can detect the correctness of the external loop by injecting a low-frequency signal into the external loop, can not cause interference to other loops, and can limit the signal in a certain range so as to ensure the safety and controllability of detection.
3. The automatic switching device and the external loop are isolated from the test slave machine through the test host machine, so that a circuit breaker in the process of fault tripping operation is not caused, the safety of uninterrupted power detection is ensured, the detection of the external loop can be finished, and the defect of the traditional tester is overcome.
Drawings
FIG. 1 is a schematic diagram of a system for detecting backup power automatic switching device and circuit thereof without power outage;
fig. 2 is a block diagram of a test host of a system for detecting a spare power automatic switching device and a loop thereof without power outage.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention discloses a backup power automatic switching device and a method for detecting a loop of the backup power automatic switching device without power outage, and a system wiring diagram corresponding to the method is shown in fig. 1. The method mainly comprises the following steps:
step 1: a testing host is arranged on a terminal block of a screen cabinet of the spare automatic switching device, and testing slaves are connected to the positions of the switch circuit breakers to finish wiring.
Step 2: and after the charging condition of the automatic switching device is met, the test host simulates faults, sets analog quantity and switching quantity parameters, and outputs analog quantity parameter signals and switching quantity parameter signals to the automatic switching device so as to enable the automatic switching device to act.
Step 3: the standby automatic switching device sends relevant switching value signals to a test host according to action conditions, the test host receives power frequency signals, after operation processing, relevant switching value parameter signals wait for overturning, namely 0/1 wait for conversion, on one hand, the relevant switching value parameters and corresponding analog value parameters are waited for updating, a wait state is set, and on the other hand, low-frequency weak current signals are sent to corresponding test slaves.
Step 4: after the corresponding test slave machine collects the low-frequency weak current signal sent by the test host machine, the test slave machine sends another low-frequency weak current signal.
Step 5: after receiving the low-frequency weak current signal sent by the test slave, the test host carries out operation processing on the low-frequency weak current signal, and confirms the overturn of the related switching value parameter signal, namely 0/1 confirmation conversion, on one hand, confirms updating of the related switching value parameter and the corresponding analog value parameter, sets the confirmation state, and on the other hand, outputs the power frequency signal to the spare power automatic switching device, thereby completing the spare power automatic switching device and the loop thereof without power failure detection.
The test host outputs analog quantity signals and inputs and outputs switching value signals with different frequencies, and the test host comprises a power module, an interface module, a communication module, a man-machine interaction module and an operation module. The power module is responsible for providing a working power supply of the test host, the interface module is responsible for connecting internal and external wiring of the test host, and converting and transmitting input switching value to the operation module, the communication module is responsible for receiving the same-frequency signal and converting and transmitting the operation module, the man-machine interaction module is responsible for displaying and setting operation of an interface, the setting content is converted and transmitted to the operation module, and the operation module is responsible for carrying out operation processing on all parameters transmitted in the interface module, the communication module and the man-machine interaction module. The test slaves are mutually independent, and each test slave inputs and outputs switching value signals with different frequencies, and the test slaves comprise a power module, an interface module, a communication module, an acquisition module and an operation module. The power module is responsible for providing working power for the testing slave machine, the interface module is responsible for connecting internal and external wiring of the slave machine, the input switching value is converted and transmitted to the operation module, the communication module is responsible for receiving the same-frequency signals, converting and transmitting the operation module, the acquisition module is responsible for acquiring different low-frequency weak current signals in the secondary cable core wire, converting and transmitting the signals to the operation module, and the operation module is responsible for carrying out operation processing on the interface module, the communication module and each parameter transmitted in the acquisition module. It should be noted that the operation module, the acquisition module, the power module and the like are all conventional module structures in the field of spare power automatic switching, and the applicant does not further describe here.
Referring to fig. 1, the interface module of the test host is provided with a plurality of interfaces including an analog output interface C2, a switching value signal input interface B2, a switching value signal output interface A2, a low frequency signal input interface D2, and a low frequency signal output interface E2. The analog quantity output interface C2 is used for being connected with analog quantity signals of the spare automatic switching device, the switching quantity signal input interface B2 is used for being connected with switching quantity output signals of the spare automatic switching device, the switching quantity signal output interface A2 is used for being connected with switching quantity input signals of the spare automatic switching device, the low-frequency signal input interface D2 is used for being connected with switching quantity output signals of all the test slaves, and the low-frequency signal output interface E2 is used for being connected with switching quantity input signals of all the test slaves.
The interface modules of the test slaves are respectively provided with a plurality of interfaces, including a low-frequency signal input interface and a low-frequency signal output interface, wherein the low-frequency signal input interface is connected with a caliper and used for collecting output signals of the low-frequency signal output interface E2 of the test host, and the low-frequency signal output interface is used for being connected with the low-frequency signal input interface D2 of the test host.
The analog output interface C2 in the test host interface module is provided with a plurality of interfaces, and each interface is correspondingly connected with one current or voltage wiring terminal of the spare power automatic switching device. The switching value signal input interface B2 in the test host interface module is provided with a plurality of interfaces, and each interface is correspondingly connected with one tripping and closing wiring terminal of the spare power automatic switching device. The switching value signal output interface A2 in the test host interface module is provided with a group of multiple interfaces, and each interface is correspondingly connected with a connection terminal at a switching position of the spare power automatic switching device. The low-frequency signal input interface D2 in the test host interface module is provided with a plurality of interfaces, each interface can be correspondingly connected with a low-frequency signal output interface of a test slave, and one interface in the low-frequency signal input interface D2 of the test host is in one-to-one correspondence with the low-frequency signal output interface of the test slave. The low-frequency signal output interface E2 in the test host interface module is provided with a plurality of interfaces, each interface is correspondingly connected with a low-frequency signal input interface of a test slave, and one interface in the low-frequency signal output interface E2 of the test host is in one-to-one correspondence with the low-frequency signal input interface of the test slave.
And when the terminal block is specifically connected, the spare power automatic switching device is disconnected from the terminal block of the screen cabinet of the spare power automatic switching device to the external loop, the corresponding interface of the spare power automatic switching device is connected with the corresponding interface of the test host, and the interfaces of the test slaves are connected to the terminal block and then connected with the interfaces of the test host.
In this embodiment, the signal transmission between the test master and the test slave is specifically as follows:
the test host computer sends low-frequency weak current signals through the secondary cable core wire as a medium, each test slave computer collects the low-frequency weak current signals sent by the test host computer in the secondary cable core wire through the calipers, each slave computer sends different low-frequency weak current signals through the secondary cable core wire as a medium, and the test host computer collects the low-frequency weak current signals sent by the test slave computers in the secondary cable core wire.
The test host sets analog quantity and switching quantity parameters through the man-machine interaction module, outputs analog quantity parameter signals from the analog quantity output interface C2 to the standby power automatic switching device, outputs switching quantity parameter signals from the switching quantity signal output interface A2 to the standby power automatic switching device, and then sends relevant switching quantity signals to the switching quantity signal input interface B2 of the test host according to action conditions, and the test host waits for turning over the relevant switching quantity parameter signals after operation processing of the operation module, namely 0/1 waits for conversion, on one hand, waits for updating relevant switching quantity parameters and corresponding analog quantity parameters through the man-machine interaction module, enters a waiting state, and on the other hand, sends a low-frequency weak current signal to the low-frequency signal input interface of the corresponding test slave through the secondary cable core wire from the low-frequency signal output interface E2.
After the corresponding test slave machine collects the low-frequency weak current signals sent by the test host machine through the calipers of the collecting module, the test slave machine sends another low-frequency weak current signal to the low-frequency signal input interface D2 of the test host machine from the low-frequency signal output interface through the secondary cable core wire.
After receiving the low-frequency weak current signal sent by the testing slave machine, the low-frequency signal input interface D2 of the testing host machine processes the low-frequency weak current signal through the operation module, and confirms the overturn, namely 0/1 confirmation conversion, of the relevant switching value parameter signal, on one hand, the relevant switching value parameter and the corresponding analog value parameter are confirmed and updated through the man-machine interaction module, and enter a confirmation state, and on the other hand, the relevant switching value parameter signal is output to the spare power automatic switching device through the switching value signal output interface A2.
The invention tests the host computer, tests the communication module of the slave computer and can carry on the wireless communication with other apparatuses, the invention is through testing the host computer and each testing the slave computer to finish and does not have to cut off the power and measure the automatic switching device and its return circuit, take the incoming line of the automatic switching device of the spare as an example, the description of the test procedure of the invention:
firstly, preparing wiring of a host machine and each slave machine:
1. and (3) disconnecting the wiring (current voltage, tripping and closing, switching and closing positions) from the automatic switching device to an outer loop on the screen cabinet terminal block of the automatic switching device, and taking attention to short-circuiting the secondary current loop in advance.
2. The inner side of the terminal block, namely the wiring (current voltage, tripping and closing, switching and closing positions) of the device side is respectively connected to the ports of a switching value signal input interface A2, a switching value signal output interface B2 and an analog value output interface C2 of the test host.
3. The external (breaker side) wiring (tripping and closing and opening and closing positions) of the terminal block is respectively connected to a low-frequency signal input interface D2 and a low-frequency signal output interface E2 of the test host.
4. And the test slaves 1, the test slaves 2 and the test slaves 3 are respectively connected into the 1DL, 2DL and 3DL terminal boxes, the acquisition calipers of each test slave are clamped on the tripping and closing loop lines of the corresponding loop, and the low-frequency signal output interface is connected with the auxiliary contact tripping and closing terminal of the circuit breaker.
After wiring is completed, uninterrupted power detection is started:
1. and adding the test host (current and voltage, switching position) to the automatic backup switching device, and simulating faults by the test host after the charging condition of the automatic backup switching device is met, so that the automatic backup switching device acts.
2. After the automatic switching device acts, a jump 1DL command is sent from A1 DL port of A1 to A1 DL port of a test host A2, after the test host receives the power frequency signal, a low-frequency weak current signal is sent from A1 DL port of E2 to an original 1DL tripping circuit terminal (a tripping terminal and a negative power terminal form a circuit to detect the correctness of the 1DL tripping circuit), after the test slave 1 receives the signal through a collecting caliper, another low-frequency weak current signal is sent to A1 DL auxiliary contact split terminal (if the position of a circuit breaker is opened, the circuit breaker is only closed, the closed terminal is arranged to be a single wiring, and after the 1DL port of the test host D2 receives the signal, the 1DL split state is sent from the 1DL port of B2 to the 1DL port of the automatic switching device B1.
3. After receiving the 1DL split bit, the standby automatic switching device delays sending A2 DL closing command from the 2DL port of A1 to the 2DL port of the test host A2, after receiving the power frequency signal, the test host immediately sends a low-frequency weak current signal from the 2DL port of E2 to the original 2DL closing loop terminal (a closing terminal and a negative power supply terminal form a loop to detect the correctness of the 2DL closing loop), after receiving the signal from the host 2, immediately sends another low-frequency weak current signal to the 2DL auxiliary contact closing terminal (the closing terminal is arranged to be a single wire to the standby automatic switching terminal), after receiving the signal from the 2DL port of B2, immediately sends A2 DL closing state from the 2DL port of B2 to the 2DL port of the standby automatic switching B1, and after receiving the 2DL closing bit, the standby automatic switching device completes the action.
The embodiment only describes the testing process by using a line-incoming automatic switching mode, the spare automatic switching device and part of the outer loop thereof are tested, and the testing processes of other spare automatic switching modes are the same as the example.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The method for detecting the spare power automatic switching device and the loop thereof without power outage is characterized by comprising the following steps:
step 1: a testing host is arranged on a screen cabinet terminal block of the spare automatic switching device, and a testing slave is connected to each breaker terminal box and completes wiring;
step 2: testing the addition of a host, namely adding current and voltage and switching positions to the automatic backup switching device, simulating faults by the test host after the charging condition of the automatic backup switching device is met, setting analog quantity and switching value parameters, and outputting analog quantity parameter signals and switching value parameter signals to the automatic backup switching device to enable the automatic backup switching device to act;
step 3: the standby automatic switching device sends relevant switching value signals to a test host according to action conditions, the test host receives power frequency signals, and after operation processing, relevant switching value parameter signals wait for turning, namely 0/1 wait for conversion, on one hand, the relevant switching value parameters and corresponding analog value parameters are waited for updating, a wait state is set, and on the other hand, low-frequency weak current signals are sent to corresponding test slaves;
step 4: after the corresponding test slave machine collects the low-frequency weak current signal sent by the test host machine, the test slave machine sends another low-frequency weak current signal to the test host machine;
step 5: after receiving the low-frequency weak current signal sent by the test slave, the test host carries out operation processing on the low-frequency weak current signal, and confirms the overturn of the related switching value parameter signal, namely 0/1 confirmation conversion, on one hand, confirms updating of the related switching value parameter and the corresponding analog value parameter, sets the confirmation state, and on the other hand, outputs the power frequency signal to the spare power automatic switching device, thereby completing the spare power automatic switching device and the loop thereof without power failure detection.
2. The method for detecting the spare power automatic switching device and the loop thereof without power outage according to claim 1, wherein the test host outputs analog signals and inputs and outputs switching value signals with different frequencies, and the method comprises a power supply module, an interface module, a man-machine interaction module and an operation module; the interface module is used for connecting internal and external wiring of the test host, converting and transmitting the input switching value to the operation module, the man-machine interaction module is used for displaying and setting operation of the interface, converting and transmitting the setting content to the operation module, and the operation module is used for carrying out operation processing on each parameter transmitted by the interface module and the man-machine interaction module;
the testing slaves are mutually independent, and each testing slave inputs and outputs switching value signals with different frequencies and comprises a power supply module, an interface module, an acquisition module and an operation module; the power module is responsible for providing working power for the testing slave machine, the interface module is responsible for connecting the internal and external wiring of the slave machine, and converting and transmitting the input switching value to the operation module, the acquisition module is responsible for acquiring different low-frequency weak current signals in the secondary cable core wire, converting and transmitting the signals to the operation module, and the operation module is responsible for carrying out operation processing on each parameter transmitted in the interface module and the acquisition module.
3. The method for detecting the spare power automatic switching device and the loop thereof without power outage according to claim 2, wherein the wiring between the test master and the test slave is completed in the step 1, specifically comprising the following steps:
the interface module of the test host is provided with a plurality of interfaces, including an analog output interface C2, a switching value signal input interface B2, a switching value signal output interface A2, a low-frequency signal input interface D2 and a low-frequency signal output interface E2; the analog quantity output interface C2 is used for being connected with analog quantity signals of the spare automatic switching device, the switching quantity signal input interface B2 is used for being connected with switching quantity output signals of the spare automatic switching device, the switching quantity signal output interface A2 is used for being connected with switching quantity input signals of the spare automatic switching device, the low-frequency signal input interface D2 is used for being connected with switching quantity output signals of all the test slaves, and the low-frequency signal output interface E2 is used for being connected with switching quantity input signals of all the test slaves;
the interface modules of the test slaves are respectively provided with a plurality of interfaces, including a low-frequency signal input interface and a low-frequency signal output interface, wherein the low-frequency signal input interface is connected with a caliper and is used for collecting output signals of a low-frequency signal output interface E2 of the test master, and the low-frequency signal output interface is used for being connected with a low-frequency signal input interface D2 of the test master;
the method comprises the steps that the inner side of a terminal block of a spare automatic switching device, namely a device side wiring, namely current voltage, tripping and closing and switching positions are respectively connected to a switching value signal input interface A2, a switching value signal output interface B2 and an analog value output interface C2 port of a test host;
connecting the outer side of the terminal strip, namely the wiring of the side of the circuit breaker, namely the tripping and closing, and the switching and closing positions to a low-frequency signal input interface D2 and a low-frequency signal output interface E2 of the test host respectively;
and a plurality of test slaves are respectively connected into the terminal box, the acquisition calipers of each test slave are clamped on the tripping and closing loop line of the corresponding loop, and the low-frequency signal output interface is connected with the auxiliary contact switching and positioning terminal of the circuit breaker.
4. The method for detecting the spare power automatic switching device and the loop thereof according to claim 3, wherein the analog output interface C2 in the test host interface module is provided with a plurality of interfaces, and each interface is correspondingly connected with a current or voltage connecting terminal of the spare power automatic switching device;
the switching value signal input interface B2 in the test host interface module is provided with a group of multiple interfaces, and each interface is correspondingly connected with one tripping and closing wiring terminal of the spare power automatic switching device;
the switching value signal output interface A2 in the test host interface module is provided with a group of multiple interfaces, and each interface is correspondingly connected with a connection terminal at a switching position of the spare power automatic switching device;
the low-frequency signal input interface D2 in the test host interface module is provided with a plurality of interfaces, each interface can be correspondingly connected with a low-frequency signal output interface of a test slave, and one interface in the low-frequency signal input interface D2 of the test host corresponds to one low-frequency signal output interface of the test slave one by one;
the low-frequency signal output interface E2 in the test host interface module is provided with a plurality of interfaces, each interface is correspondingly connected with a low-frequency signal input interface of a test slave, and one interface in the low-frequency signal output interface E2 of the test host is in one-to-one correspondence with the low-frequency signal input interface of the test slave.
5. The method for detecting the backup power automatic switching device and the loop thereof according to claim 3 or 4, wherein the signal transmission between the test master and the test slave is specifically as follows:
the test host computer sends low-frequency weak current signals through the secondary cable core wire as a medium, each test slave computer collects the low-frequency weak current signals sent by the test host computer in the secondary cable core wire through the calipers, each test slave computer sends different low-frequency weak current signals through the secondary cable core wire as a medium, and the test host computer collects the low-frequency weak current signals sent by the test slave computers in the secondary cable core wire.
6. The method for detecting the spare power automatic switching device and the loop thereof according to claim 5, wherein the test host sets analog quantity and switching quantity parameters through the man-machine interaction module, outputs analog quantity parameter signals from an analog quantity output interface C2 to the spare power automatic switching device, outputs switching quantity parameter signals from a switching quantity signal output interface A2 to the spare power automatic switching device, sends relevant switching quantity signals to a switching quantity signal input interface B2 of the test host according to action conditions, and the test host waits for overturning, namely 0/1 waiting conversion, of the relevant switching quantity parameter signals after the operation of the operation module, on the one hand, waits for updating relevant switching quantity parameters and corresponding analog quantity parameters through the man-machine interaction module, enters a waiting state, and on the other hand, sends a low-frequency weak current signal from a low-frequency signal output interface E2 to a low-frequency signal input interface of a corresponding test slave through a secondary cable core wire.
7. The method for detecting the spare power automatic switching device and the loop thereof according to claim 6, wherein after the corresponding test slave machine collects the low-frequency weak current signal sent by the test host machine through the calipers of the collecting module, the test slave machine sends another low-frequency weak current signal to the low-frequency signal input interface D2 of the test host machine from the low-frequency signal output interface through the secondary cable core wire.
8. The method for detecting the spare power automatic switching device and the loop thereof according to claim 7, wherein after the low-frequency signal input interface D2 of the test host receives the low-frequency weak current signal sent by the test slave, the low-frequency weak current signal is processed by the operation module, and then the relevant switching value parameter signal is confirmed to be turned over, namely 0/1 is confirmed to be converted, on one hand, the relevant switching value parameter and the corresponding analog value parameter are confirmed to be updated through the man-machine interaction module, and the corresponding switching value parameter enters a confirmation state, and on the other hand, the switching value parameter is output to the spare power automatic switching device through the switching value signal output interface A2.
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