CN105403830A - DSP-based stroke test system of high-voltage circuit breaker - Google Patents
DSP-based stroke test system of high-voltage circuit breaker Download PDFInfo
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- CN105403830A CN105403830A CN201510872664.1A CN201510872664A CN105403830A CN 105403830 A CN105403830 A CN 105403830A CN 201510872664 A CN201510872664 A CN 201510872664A CN 105403830 A CN105403830 A CN 105403830A
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- primary cut
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Abstract
The invention, which belongs to the technical field of the high-voltage electrical apparatus testing, especially relates to a DSP-based stroke test system of a high-voltage circuit breaker. A moving guide rod of a linear displacement sensor is connected with a permanent magnet by a coupler; and the other end of the permanent magnet is connected with a moving contact of the high-voltage circuit breaker. The linear displacement sensor is connected with a universal support connected to the high-voltage circuit breaker. A signal output terminal of the linear displacement sensor is connected with a signal input terminal of a testing system by a data line. According to the invention, formation of the high-voltage circuit breaker can be measured rapidly; and no processing connection and element fixation are required during the measurement process. Moreover, the system has advantages of simple structure, easy installation, high measurement precision and stability and the like and can be popularized and applied to the power equipment detection and checking field; and thus the quality of the high-voltage electrical appliance can be improved and the detection cycle can be reduced. Therefore, the provided system has the certain social benefits and economic benefits.
Description
Technical field
The invention belongs to High-Voltage Electrical Appliances experimental technique field, particularly a kind of primary cut-out stroke test pilot system based on DSP.
Background technology
In recent years along with the prosperity and development of economy, the demand of electric system capacity and energy increases thereupon, proposes more and more higher requirement to the reliability of electric system and economy.Control and protection dual role undertaken by primary cut-out in electric system, can close, carry, cut-offs the electric current in normal loop on the one hand, have fault detect and defencive function simultaneously.In electric system, the enormous amount of primary cut-out, therefore its performance reliability is particularly important for the security of whole electric system.Stroke, vibration and average mark closing speed etc. are the main operational factors of primary cut-out, also can be the important indicators weighing primary cut-out performance.Development structure is simple, be convenient to the focus installed, maneuverable testing apparatus is the research of High-Voltage Electrical Appliances field tests.
Summary of the invention
In order to solve the technical matters that prior art exists, the present invention proposes a kind of primary cut-out stroke test pilot system based on DSP, object shortens the round of visits of high voltage electric appliance, promotes the progress of such examination and test of products technology, for the development of intelligent electrical apparatus technology lays the foundation.
The present invention is achieved through the following technical solutions goal of the invention:
Based on the primary cut-out stroke test pilot system of DSP, the dynamic guide rod of linear displacement transducer is connected with permanent magnet by shaft coupling, the other end of permanent magnet is connected with the moving contact of primary cut-out, linear displacement transducer is connected with universal stand, universal stand is connected on primary cut-out, and the signal output part of linear displacement transducer is connected with the signal input part of test macro by data line.
Described linear displacement transducer is connected with universal stand by stiff end.
Described universal stand by inner controllable magnetic ferropexy on the side end cap of primary cut-out.
Described test macro take digital signal processor DSP as core, be connected with the input end of signal conversion unit by the signal output part of linear displacement transducer, the output terminal of signal conversion unit is connected with the input end of signal isolated location, the output terminal of signal isolated location is connected with the input end of analog signal of DSP, the input end of display screen is connected with the signal output part of DSP, the input end of control panel is connected with the input end of DSP, the primary side of control transformer is connected with electrical network, the secondary side of control transformer is respectively at linear displacement transducer, the power input of the chips such as DSP is connected, the output terminal of DLL (dynamic link library) is connected with the program input end of DSP, the input end of DLL (dynamic link library) is connected with the output terminal of emulator, the input end of emulator is connected with the USB interface of computing machine, the output terminal of reset unit is connected with the reseting terminal of DSP inside, the input end of communication module is connected with the communication line interface of DSP, the output terminal of communication module is connected with the serial communication interface line of computing machine.
Described primary side is two connection terminals, and 220V voltage inputs, and described secondary side is that 5V and 3.3V two-way voltage exports, for sensor and DSP power.
Based on the primary cut-out stroke test pilot system of DSP, comprise the following steps:
(1) system initialization;
(2) self-inspection;
(3) action command is waited for;
(4) pick-up transducers signal;
(5) judge whether action completes;
(6) signal transacting;
(7) primary cut-out run-length data is calculated;
(8) data display and communication;
(9) terminate.
Advantage of the present invention and beneficial effect are:
The present invention can carry out Quick Measurement to the formation of primary cut-out, and measuring process does not need processing to connect and retaining element, have structure simple, be easy to install, the advantage such as the high and good stability of measuring accuracy.Meanwhile, data can be sent to computing machine by serial communication interface by test macro, are convenient to data analysis and longer-term storage.The present invention is adapted at electric device maintenance inspection field promotion and application, can improve the quality of high voltage electric appliance, shorten round of visits, have certain Social benefit and economic benefit.
Below in conjunction with the drawings and specific embodiments to the present invention's detailed description in addition.
Accompanying drawing explanation
Fig. 1 is test macro physical construction sketch of the present invention;
Fig. 2 is test macro electrical structure block diagram of the present invention;
Fig. 3 is the primary cut-out stroke test pilot system workflow based on DSP.
In figure, 1 primary cut-out; 2 permanent magnets; 3 shaft couplings; 4 linear displacement transducers; 5 data lines; 6 test macros; 7 universal stands; 8 signal conversion units; 9 signal isolated locations; 10DSP; 11 control transformers; 12 reset units; 13 display screens; 14 communication modules; 15 DLL (dynamic link library); 16 emulators; 17 computing machines; 18 electrical networks; 19 control panels.
Embodiment
The present invention is a kind of primary cut-out stroke test pilot system based on DSP, and as shown in Figure 1, as shown in Figure 2, test macro and computer communication circuit diagram are as shown in Figure 3 for test macro electrical structure block diagram for physical construction sketch.
Based on DSP primary cut-out stroke test pilot system physical construction sketch as shown in Figure 1, this system comprises primary cut-out 1, linear displacement transducer 4, permanent magnet 2, shaft coupling 3, universal stand 7, data line 5 and test macro 6 form, wherein the dynamic guide rod of linear displacement transducer 4 is connected with permanent magnet 2 by shaft coupling 3, the other end of permanent magnet 2 is connected with the moving contact of primary cut-out 1, the stiff end of linear displacement transducer 4 is connected with universal stand 7, universal stand 7 by inner controllable magnetic ferropexy on the side end cap of primary cut-out 1, the signal output part of linear displacement transducer 4 is connected by the signal input part of data line 5 with test macro 6.
Described test macro 6 take digital signal processor DSP as core, electrical structure block diagram as shown in Figure 2, mainly comprise signal conversion unit 8, signal isolated location 9, DSP10, display screen 13, control panel 19, control transformer 11, electrical network 18, DLL (dynamic link library) 15, emulator 16, reset unit 12, communication module 14, computing machine 17 and linear displacement transducer 4, wherein the signal output part of linear displacement transducer 4 is connected with the input end of signal conversion unit 8, the output terminal of signal conversion unit 8 is connected with the input end of signal isolated location 9, the output terminal of signal isolated location 9 is connected with the input end of analog signal of DSP10, the input end of display screen 13 is connected with the signal output part of DSP10, the input end of control panel 19 is connected with the input end of DSP10, the primary side of control transformer 11 is connected with electrical network 18, the secondary side of control transformer 11 is respectively at linear displacement transducer 4, the power input of the chips such as DSP10 is connected, the output terminal of DLL (dynamic link library) 15 is connected with the program input end of DSP10, the input end of DLL (dynamic link library) 15 is connected with the output terminal of emulator 16, the input end of emulator 16 is connected with the USB interface of computing machine 17, the output terminal of reset unit 12 is connected with the reseting terminal of DSP10 inside, the input end of communication module 14 is connected with the communication line interface of DSP10, the output terminal of communication module 14 is connected with the serial communication interface line of computing machine 17.Foregoing primary side is two connection terminals, and 220V voltage inputs, and described secondary side is that 5V and 3.3V two-way voltage exports, for sensor and DSP power.
Based on DSP primary cut-out stroke test pilot system workflow as shown in Figure 3:
1, system initialization;
2, self-inspection;
3, action command is waited for;
4, pick-up transducers signal;
5, judge whether action completes;
6, signal transacting;
7, primary cut-out run-length data is calculated;
8, data display and communication
9, terminate.
Claims (6)
1. based on the primary cut-out stroke test pilot system of DSP, it is characterized in that: the dynamic guide rod of linear displacement transducer (4) is connected with permanent magnet (2) by shaft coupling (3), the other end of permanent magnet (2) is connected with the moving contact of primary cut-out (1), linear displacement transducer (4) is connected with universal stand (7), universal stand (7) is connected on primary cut-out (1), and the signal output part of linear displacement transducer (4) is connected by the signal input part of data line (5) with test macro (6).
2. the primary cut-out stroke test pilot system based on DSP according to claim 1, is characterized in that: described linear displacement transducer (4) is connected with universal stand (7) by stiff end.
3. the primary cut-out stroke test pilot system based on DSP according to claim 1, is characterized in that: described universal stand (7) by inner controllable magnetic ferropexy on the side end cap of primary cut-out (1).
4. the primary cut-out stroke test pilot system based on DSP according to claim 1, it is characterized in that: described test macro (6) take digital signal processor DSP as core, be connected by the input end of the signal output part of linear displacement transducer (4) with signal conversion unit (8), the output terminal of signal conversion unit (8) is connected with the input end of signal isolated location (9), the output terminal of signal isolated location (9) and DSP(10) input end of analog signal be connected, the input end of display screen (13) and DSP(10) signal output part be connected, the input end of control panel (19) and DSP(10) input end be connected, the primary side of control transformer (11) is connected with electrical network (18), the secondary side of control transformer (11) is respectively at linear displacement transducer (4), etc. DSP(10) power input of chip is connected, the output terminal of DLL (dynamic link library) (15) and DSP(10) program input end be connected, the input end of DLL (dynamic link library) (15) is connected with the output terminal of emulator (16), the input end of emulator (16) is connected with the USB interface of computing machine (17), the output terminal of reset unit (12) and DSP(10) inner reseting terminal is connected, the input end of communication module (14) and DSP(10) communication line interface be connected, the output terminal of communication module (14) is connected with the serial communication interface line of computing machine (17).
5. the primary cut-out stroke test pilot system based on DSP according to claim 4, it is characterized in that: described primary side is two connection terminals, 220V voltage inputs, and described secondary side is that 5V and 3.3V two-way voltage exports, for sensor and DSP power.
6. based on the primary cut-out stroke test pilot system of DSP, it is characterized in that: comprise the following steps: (1) system initialization;
(2) self-inspection;
(3) action command is waited for;
(4) pick-up transducers signal;
(5) judge whether action completes;
(6) signal transacting;
(7) primary cut-out run-length data is calculated;
(8) data display and communication;
(9) terminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510872664.1A CN105403830A (en) | 2015-12-02 | 2015-12-02 | DSP-based stroke test system of high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510872664.1A CN105403830A (en) | 2015-12-02 | 2015-12-02 | DSP-based stroke test system of high-voltage circuit breaker |
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| CN105403830A true CN105403830A (en) | 2016-03-16 |
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| CN201510872664.1A Pending CN105403830A (en) | 2015-12-02 | 2015-12-02 | DSP-based stroke test system of high-voltage circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405409A (en) * | 2016-11-23 | 2017-02-15 | 国家电网公司 | High-voltage circuit breaker insulation resistance and leakage current intelligent test system and method |
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| CN106405409B (en) * | 2016-11-23 | 2023-11-24 | 国家电网公司 | Intelligent test system and test method for insulation resistance and leakage current of high-voltage circuit breaker |
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Application publication date: 20160316 |
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