Portable tester for distribution automation terminal

Abstract

The invention discloses a portable tester for a power distribution automation terminal, relates to the technical field of power distribution automation terminal testing, and solves the problems that in the prior art, wiring is tedious in the operation, maintenance and debugging process of the power distribution automation terminal, and a debugging instrument is inconvenient to use at the present stage. Comprising a tester main control module, a voltage and current inverter module, a semaphore input and output module, a semaphore key operation module, an analog quantity knob adjusting module, a standard aviation plug interface module and an LED state indication module, and the tester main control module realizes real-time detection of signal positions of the semaphore key operation module and the analog quantity knob adjusting module. The voltage and current inverter module and the semaphore input and output module are linked to act and output according to a detection position signal, and analog quantity and semaphore are output to a power distribution automation terminal for use through the standard aviation plug interface module. The operation and maintenance difficulty of the power distribution automation terminal is solved by designing a standardized interface, an integrated function module and the like.

Description

Technical Field

[0001] The invention relates to the technical field of distribution automation terminal testing, and in particular to a portable tester for distribution automation terminals. Background Art

[0002] At present, the debugging and operation and maintenance of distribution automation terminals still use manual wiring tooling to test terminal equipment. When the operation and maintenance personnel use the manual wiring tooling method, the wiring sequence is often wrong, which leads to the burning of the internal circuit of the distribution automation equipment. The wiring reliability of the manual wiring method is poor. During the debugging process, it is often necessary to repeatedly confirm whether the wiring is good, which seriously wastes the operation and maintenance production time. In addition, the operation and maintenance personnel often use the manual wiring tooling method. The wiring sequence is wrong, which leads to the burning of the distribution automation equipment. The manual wiring method used by the operation and maintenance personnel seriously reduces the efficiency of operation and maintenance work and increases the labor cost of the power grid company. In addition, at this stage, the market mostly uses relay protection testers for the debugging solutions of distribution automation terminals. Although the relay protection tester is more functional, it only needs to use the current and voltage simulation functions in the debugging process of the distribution automation terminal, and the functions are redundant. At the same time, at this stage, the market uses relay protection testers for the debugging of distribution automation terminals, but the relay protection tester needs to consider the weight of the equipment, AC power supply and transportation, and its application is limited by conditions in the actual on-site operation and maintenance process. Therefore, the present invention integrates all the advantageous solutions for field implementation by designing standardized interfaces, integrated functional modules, miniaturized equipment volume and lithium battery power supply, and solves the operation and maintenance difficulties of distribution automation terminals in many aspects.

[0003] In view of the pain points of the current user side in the operation and maintenance and debugging of distribution automation terminals, and the current market side is unable to provide a more convenient and efficient product solution, it is urgent to solve the problems of cumbersome and unreliable wiring and inconvenient use of debugging instruments in the operation and maintenance and debugging of distribution automation terminals, so as to improve the maintenance efficiency of distribution automation terminals and reduce the operation and maintenance costs of distribution automation equipment of power grid companies.

[0004] In view of this, a portable tester for distribution automation terminals is needed. Summary of the invention

[0005] In view of the problems of cumbersome and unreliable wiring and inconvenient use of debugging instruments in the prior art during the operation and maintenance and debugging of distribution automation terminals, the present invention provides a portable tester for distribution automation terminals, which can realize convenient testing of the opening and closing functions and analog measurement functions of distribution automation terminals, and realize efficient debugging of distribution automation terminals through portable design, simplified wiring and simplified operation, thereby improving operation and maintenance efficiency and reducing operation and maintenance costs. The specific technical scheme is as follows:

[0006] A portable tester for distribution automation terminals, the portable tester includes a standard aviation plug interface for connecting to the distribution automation terminal, a function module key operation area for analog test of the opening and closing signal quantity of the distribution automation terminal, a function module key operation area for analog test of current and voltage of the distribution automation terminal, a function knob for adjusting the analog phase and gear position, a device status indicator of the portable tester, and a liquid crystal display area for test data during the portable tester test. The portable tester is designed with a tester main control module and 7 functional submodules, including a tester main control module AT-A107B, a voltage and current inverter module AT-A107B-P, a signal quantity input and output module AT-A107B-S, a signal quantity key operation module AT-A156A-A, an analog quantity knob adjustment module AT-A156A-B, a standard aviation plug interface module AT-A156A-C, a liquid crystal display module AT-A156A-D, and an LED status indicator module AT-A156A-E. The main control module of the tester realizes the control of the voltage and current inverter module, the detection and remote control output of the signal input and output module, and the display control of the LCD display module and the LED status indicator module. At the same time, the main control module of the tester realizes the real-time detection of the signal position of the signal key operation module and the analog knob adjustment module, and links the voltage and current inverter module and the signal input and output module to output according to the detection position signal, and outputs the analog quantity and signal quantity to the distribution automation terminal through the standard aviation plug interface module.

[0007] Preferably, the portable tester is designed with a J1 two-core standard aviation plug interface, which is used for connecting the portable tester to the AC220V power supply to provide the portable tester with battery charging power and input power for the analog voltage function module; the portable tester is designed with a J2 three-core standard aviation plug interface and a J3 five-core standard aviation plug interface, which are used for the portable tester to output analog voltage signals, and the user selects the corresponding aviation plug interface for connection and use according to the distribution automation terminal interface type; the portable tester is designed with a J4 fourteen-core standard aviation plug interface and a J5 twelve-core standard aviation plug interface, which are used for the portable tester to output analog signal quantities, and the user selects the corresponding aviation plug interface for connection and use according to the distribution automation terminal interface type; the portable tester is designed with a J6 six-core aviation plug interface, which is used for the portable tester to output analog current signals, and the current measurement simulation test is completed by connecting to the distribution automation terminal current measurement interface through the aviation plug interface.

[0008] Preferably, the portable tester is designed with a semaphore operation area, which includes semaphore operation buttons and a remote control status indicator light. The semaphore buttons are used to simulate a primary switch opening telesignaling node, a closing telesignaling node and other telesignaling nodes. The semaphore buttons are used to detect whether the opening, closing and other telesignaling input monitoring functions of the distribution automation terminal are normal. The remote control status indicator light is used to indicate the status of the remote control output node of the distribution automation terminal.

[0009] Preferably, the portable tester is designed with an analog operation area, which includes analog operation buttons and analog output status indicator lights. By operating the analog buttons, analog phase voltage and zero-sequence voltage output can be achieved, which is used for measuring the distribution automation terminal voltage measurement channel to check whether the function and performance of the distribution automation terminal voltage measurement channel meet the requirements.

[0010] Preferably, the portable tester is designed with an analog quantity adjustment area, and the analog current quantity can be adjusted by knob 1 to adjust the output phase, and the output phases are respectively A phase, B phase, C phase and zero sequence; the output current gear is adjusted by knob 2 to achieve adjustment of 0.2A, 0.5A, 1A, 1.5A and 2A.

[0011] Preferably, the portable tester is designed with a device operating status indicator light, which includes a device power indicator light, a device charging indicator light and a device full indicator light.

[0012] Preferably, the portable tester is designed with a liquid crystal display area, which can display the output voltage, output current phase, output current value and device battery power information during the test in real time.

[0013] Preferably, the portable tester is designed with a tester main control module, a voltage and current inverter module and an analog knob adjustment module. The tester main control module serves as the core processing unit of the portable tester to realize output control of the voltage and current inverter module. The tester main control module uses the position signal of the analog knob adjustment module in real time to adjust the analog current signal of the voltage, current value and phase sequence output by the voltage and current inverter module.

[0014] Preferably, the portable tester is designed with a tester main control module, a semaphore input / output module and an LED status indication module. The tester main control module, as the core processing unit of the portable tester, realizes the detection and control of the semaphore input / output module. The tester main control module detects the opening / closing position signal input by the external power distribution automation terminal in real time, and controls the LED status indication module to indicate the correct position information according to the opening / closing position signal. The tester main control module detects the position signal output by the semaphore key operation module in real time, and controls the semaphore input / output module to output the corresponding remote control opening / closing signal according to the position signal of the key operation.

[0015] Preferably, the portable tester is designed with a tester main control module, an LED status indication module, a liquid crystal display module and a standard aviation plug interface module. The tester main control module controls the LED status indication module to make corresponding working status indications according to the working status of the tester and the signal quantity detection data, including the working status indication of the test itself and the open and closed position indications of the signal quantity input. The test main control module controls the liquid crystal display module to display the output voltage, current, phase sequence and other information in real time according to the output status of the tester current inverter. The standard aviation plug interface module is used to connect the voltage and current inverter output, the signal quantity input and output module and the external aviation plug connector to realize the signal input and output functions.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] At present, the operation and maintenance of distribution automation terminals are still carried out by manual wiring tooling. The operation and maintenance personnel often have the situation that the line sequence is wrong when using the manual wiring tooling, which leads to the burning of distribution automation equipment. In addition, the wiring reliability of the manual wiring method is poor, and repeated confirmation is required during the debugging process, and the operation and maintenance is time-consuming and inefficient. At the same time, the relay protection tester is used for the debugging of distribution automation terminals in the market at this stage, but the relay protection tester needs to consider the weight of the equipment, AC power supply and transportation, and its application is subject to conditions in the actual field operation and maintenance process. Therefore, the present invention integrates all the advantages of the field implementation schemes into one by designing standardized interfaces, integrated functional modules, miniaturized equipment volume and lithium battery power supply, and solves the operation and maintenance difficulties of distribution automation terminals in many aspects. The present invention provides a portable tester for distribution automation terminals, which solves the problems of cumbersome and unreliable wiring and inconvenient use of debugging instruments in the operation and maintenance and debugging process of distribution automation terminals, realizes the improvement of the maintenance work efficiency of distribution automation terminals, and significantly reduces the operation and maintenance costs of distribution automation equipment of power grid companies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0019] Figure 1 It is a schematic diagram of the overall framework of the present invention;

[0020] Figure 2 This is a distribution diagram of the function keys of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0023] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0024] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0025] Combine the following Figure 1-Figure 2 , the implementation modes of the present invention are further described.

[0026] In one embodiment of the present invention, a portable tester for a distribution automation terminal is provided, including a tester main control module, a voltage and current inverter module, a semaphore input and output module, a semaphore key operation module, an analog knob adjustment module, a standard aviation plug interface module, a liquid crystal display module and an LED status indication module. The tester main control module is used for controlling the voltage and current inverter module, detecting and remotely outputting the semaphore input and output modules, and controlling the display of the liquid crystal display module and the LED status indication module. The tester main control module realizes real-time detection of the signal position of the semaphore key operation module and the analog knob adjustment module, links the voltage and current inverter module and the semaphore input and output module to action output according to the detection position signal, and outputs the analog quantity and semaphore to the distribution automation terminal for use through the standard aviation plug interface module.

[0027] Among them, the tester main control module, as the core processing unit of the portable tester, mainly realizes the control of the voltage and current inverter module, the input detection and output control of the signal input and output module. At the same time, the tester main control module detects the position status information of the signal key operation module and the analog knob adjustment module in real time, and completes the linkage control of the voltage and current inverter module and the signal input and output module according to the detected position status information, so as to realize the analog quantity and signal quantity required by the tester output. The analog quantity and signal quantity output by the tester are output through the standard aviation plug interface module for external power distribution automation terminal testing. As the core processing unit of the tester, the tester main control module has the function of outputting the working status and working data of the tester. The tester main control module realizes the functions of indicating the working status of the portable tester, indicating the separation and combination position of the signal quantity output by the tester, and displaying the analog quantity value output by the tester by controlling the LCD display module and the LED status indication module.

[0028] Please refer to the attached figure. The portable tester is designed with six functional areas, including a standardized aviation plug interface for direct connection with the distribution automation terminal to simplify wiring and facilitate testing; a signal operation area, which is used to simulate the remote signal opening and closing of the distribution automation terminal and the remote control status indication; an analog operation area, which is used to simulate the analog voltage output and output status indication of the distribution automation terminal; a current analog adjustment area, which is used to adjust the phase and gear value of the analog current output; a tester working status indication area, which is used to indicate the power status of the tester body, the charging and full status of the internal battery; a liquid crystal display area, which is used to display the current voltage, current phase and current gear value of the tester when it is working.

[0029] A total of 6 standardized aviation plug interfaces are designed, and all aviation plugs adopt the same specification of GX20 series aviation socket design. Among them, the two-core aviation plug J1 is used as the battery charging interface of the portable tester and the AC voltage source of the internal functional module; the three-core aviation plug J2 and the five-core aviation plug J3 are used as the analog single-phase voltage output interface; the fourteen-core aviation plug J4 and the twelve-core aviation plug J5 are used as the analog signal output interface of the portable tester; the six-core aviation plug J6 is used as the analog current signal output interface of the portable tester.

[0030] The portable tester is designed with a semaphore operation area, which contains semaphore operation buttons for simulating the opening and closing telesignaling of a primary switch and a status indicator light for detecting the remote control output signal of the distribution automation terminal. There are 10 semaphore buttons designed, which are mainly used to simulate the opening telesignaling node, closing telesignaling node and other telesignaling nodes of a primary switch. There are 2 remote control status indicator lights designed, which are mainly used to press buttons to detect whether the remote opening and closing functions of the distribution automation terminal are normal.

[0031] The portable tester is designed with an analog operation area, which contains analog voltage output operation buttons and analog voltage output status indicator lights. Five analog voltage output operation buttons are designed in the analog operation area to select the output of a specific phase voltage, and two analog voltage output status indicator lights are designed as the analog phase voltage and zero-sequence voltage output status indicators of the distribution automation terminal.

[0032] The portable tester is designed with an analog adjustment area, which is equipped with two adjustable multi-position knobs. Knob 1 can adjust the analog current phases A, B, C and zero sequence, and knob 2 can adjust the current values ​​to multiple current positions of 0.2A, 0.5A, 1A, 1.5A and 2A. The portable tester can quickly complete the verification of the current measurement channel function of the power distribution automatic terminal or the current fault alarm function through the commonly used 4 phases and 5 positions selection test.

[0033] The portable tester is designed with a tester status indication area and a tester working data LCD display area. The status indication area is designed with 3 LED status indicators, which respectively indicate the working power status of the tester body, battery charging and battery full status; the LCD display area is designed with a color LCD display screen with a size of 12864, which is used to display the real-time voltage, current phase, current gear and other operating data information output during the test. The tester timely feedbacks the analog quantity application status of the distribution automation terminal during the test process through the equipment status indication area and display area, providing a real-time reference basis for the data measured by the distribution automation terminal.

[0034] The portable tester is designed with 1 tester main control module and 7 functional sub-modules, including the tester main control module AT-A107B, voltage and current inverter module AT-A107B-P, signal input and output module AT-A107B-S, signal key operation module AT-A156A-A, analog knob adjustment module AT-A156A-B, standard aviation plug interface module AT-A156A-C, LCD display module AT-A156A-D and LED status indication module AT-A156A-E.

[0035] The tester main control module AT-A107B of the portable tester serves as the core control unit. This module receives and processes the switch signals from the signal quantity key operation module AT-A156A-A. The tester main control module detects and identifies the key position information of the opening, closing and other signal quantities on the signal quantity key operation module AT-A156A-A, and controls the signal quantity input and output module AT-A107B-S to output remote control opening, closing and other signal quantities according to the identified position information. Finally, it is output to the aviation plug connector through the standard aviation plug interface module AT-A156A-C for use by the external power distribution automation terminal. Similarly, the tester main control module receives and processes the knob position switch signal of the analog knob adjustment module AT-A156A-B, and controls the voltage and current inverter module AT-A107B-P to output the corresponding voltage, current value and phase sequence according to the identified knob 1 and knob 2 switch signals, and finally outputs it to the aviation plug connector through the standard aviation plug interface module AT-A156A-C for use by the external power distribution automation terminal.

[0036] The tester main control module AT-A107B of the portable tester serves as the core control unit. This module receives and processes the remote opening and closing signals from the distribution automation terminal. The signal is input into the signal quantity input and output module AT-A107B-S through the standard aviation plug interface module AT-A156A-C for detection and isolation processing. The switch quantity signal after isolation processing is further input into the tester main control module for signal recognition. The main control module controls the LED status indication module AT-A156A-E to light up the corresponding opening or closing status indicator according to the recognized remote opening or closing information.

[0037] The tester main control module AT-A107B of the portable tester is the core control unit. When the module controls the voltage and current inverter module AT-A107B-P to output the corresponding voltage, current value and phase sequence according to the switch position information of the analog knob adjustment module AT-A156A-B, the tester main control module simultaneously performs sampling and monitoring of the voltage value, current value and phase sequence selection. The tester main control module transmits the sampled and monitored data to the LCD display module AT-A156A-D for display. The user can observe the working output voltage, current value and accuracy of the tester in real time during use.

[0038] In summary, the portable tester for distribution automation terminals provided by the present invention solves the problems of cumbersome and unreliable wiring and inconvenient use of debugging instruments during the operation and maintenance and debugging of distribution automation terminals, thereby improving the maintenance efficiency of distribution automation terminals and significantly reducing the operation and maintenance costs of distribution automation equipment of power grid companies.

[0039] Those of ordinary skill in the art will appreciate that the units of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition of each example has been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0040] In the embodiments provided by the present invention, it should be understood that the division of units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units can be combined into one unit, one unit can be split into multiple units, or some features can be ignored, etc.

[0041] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0042] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-0nlyMemory), random access memory (RAM, RandomAccessMemory), mobile hard disk, magnetic disk or optical disk, etc., which can store program code.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A portable tester for distribution automation terminal, characterized in that: It includes a tester main control module, a voltage and current inverter module, a semaphore input and output module, a semaphore button operation module, an analog knob adjustment module, a standard aviation plug interface module, a liquid crystal display module and an LED status indication module. The tester main control module is used to control the voltage and current inverter module, detect and remotely output the semaphore input and output modules, and control the display of the liquid crystal display module and the LED status indication module. The tester main control module realizes real-time detection of the signal position of the semaphore button operation module and the analog knob adjustment module, links the voltage and current inverter module and the semaphore input and output module to action output according to the detection position signal, and outputs the analog quantity and semaphore to the distribution automation terminal through the standard aviation plug interface module.

2. A portable tester for distribution automation terminal according to claim 1, characterized in that: The standard aviation plug interface module is designed with six standardized aviation plug interfaces, among which the two-core aviation plug J1 is used as the battery charging interface of the portable tester and the AC voltage source of the internal functional module; the three-core aviation plug J2 and the five-core aviation plug J3 are used as the analog single-phase voltage output interfaces; the fourteen-core aviation plug J4 and the twelve-core aviation plug J5 are used as the analog signal output interfaces of the portable tester; and the six-core aviation plug J6 is used as the analog current signal output interface of the portable tester.

3. A portable tester for distribution automation terminal according to claim 1, characterized in that: The semaphore button operation module includes a semaphore button and a remote control status indicator light. There are 10 semaphore buttons designed in total, which are mainly used to simulate the primary switch opening remote signaling node, closing remote signaling node and other remote signaling nodes. There are 2 remote control status indicator lights designed, which are mainly used to press buttons to detect whether the remote control opening and closing functions of the distribution automation terminal are normal.

4. A portable tester for distribution automation terminal according to claim 1, characterized in that: The analog quantity knob adjustment module includes an analog quantity operation area, which includes analog voltage output operation buttons and analog voltage output status indicator lights. Five analog quantity voltage output operation buttons are designed in the analog quantity operation area to select the output of a specific phase voltage, and two analog quantity voltage output status indicator lights are designed as analog phase voltage and zero-sequence voltage output status indications of the distribution automation terminal.

5. A portable tester for distribution automation terminal according to claim 4, characterized in that: The analog quantity knob adjustment module also includes an analog quantity adjustment area, in which two adjustable multi-speed knobs are arranged, wherein knob one realizes four phase adjustments of analog current phase A, B, C and zero sequence, and knob two realizes multiple current speed adjustments of current values ​​0.2A, 0.5A, 1A, 1.5A and 2A.

6. A portable tester for distribution automation terminal according to claim 1, characterized in that: The LED status indicator module includes a device power indicator, a device charging indicator, and a device full indicator.

7. A portable tester for distribution automation terminal according to claim 1, characterized in that: The LCD display module displays the output voltage, output current phase, output current value and device battery power information in real time during the test.

8. A portable tester for distribution automation terminal according to claim 1, characterized in that: The tester main control module serves as the core processing unit of the portable tester to realize output control of the voltage and current inverter module. The tester main control module uses the real-time analog knob to adjust the position signal of the module to adjust the analog current signal of the voltage, current value and phase sequence corresponding to the output of the voltage and current inverter module.

9. A portable tester for distribution automation terminal according to claim 1, characterized in that: The tester main control module serves as the core processing unit of the portable tester to realize the detection and control of the signal quantity input and output module. The tester main control module detects the opening and closing position signals input by the external power distribution automation terminal in real time, and controls the LED status indication module to indicate the correct position information according to the opening and closing position signals. The tester main control module detects the position signals output by the signal quantity key operation module in real time, and controls the signal quantity input and output module to output the corresponding remote control opening and closing signals according to the position signals of the key operation.

10. A portable tester for distribution automation terminal according to claim 1, characterized in that: The tester main control module controls the LED status indication module to make corresponding working status indications according to the working status of the tester and the signal detection data, including the working status indication of the test itself and the open and closed position indications of the signal input. The test main control module controls the LCD display module to display the output voltage, current, phase sequence and other information in real time according to the output status of the tester current inverter. The standard aviation plug interface module is used to connect the voltage and current inverter output, the signal input and output module and the external aviation plug connector to realize the signal input and output functions.

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