CN201378183Y - High voltage motor power analyzer - Google Patents
High voltage motor power analyzer Download PDFInfo
- Publication number
- CN201378183Y CN201378183Y CN200920069567U CN200920069567U CN201378183Y CN 201378183 Y CN201378183 Y CN 201378183Y CN 200920069567 U CN200920069567 U CN 200920069567U CN 200920069567 U CN200920069567 U CN 200920069567U CN 201378183 Y CN201378183 Y CN 201378183Y
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- display screen
- chip
- interface
- protection
- motor power
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- Expired - Fee Related
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- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The utility model relates to a high voltage motor power analyzer, which comprises a mainboard and a shell which wraps outside of the mainboard, the mainboard is provided with a high-performance microprocessor, a high-precision sampling chip, a voltage transformer, a current transformer, a display screen interface, a keyboard interface, a digital signal input module and a protective output module; the high-performance microprocessor is respectively connected with the high-precision sampling chip, the display screen interface, the keyboard interface, the digital signal input module and the protective output module; the high-precision sampling chip is respectively connected with the voltage transformer, the current transformer; the shell is provided with a display which is connected with the display screen interface and a keyboard which is connected with the keyboard interface. The high voltage motor power analyzer has the advantages that the high-performance microprocessor and the high-precision sampling chip are adopted, and complete operating parameters of the high voltage motor can be obtained, and general protection of the motor is conducted, an inadequate overload protection, starting of timeout protection, a harmonic protection, unbalance protection and the like can be effectively provided.
Description
Technical field
The utility model relates to a kind of high-tension motor power analyzer.
Background technology
High-tension motor often needs comprehensive operational factor that suitable instrument is monitored motor in real time at work, to guarantee the security of operation of high-tension motor.In the prior art, suitable device can not monitored comprehensive operational factor of motor effectively, and then provides enough protections for high-tension motor.
Summary of the invention
The purpose of this utility model provides a kind of high-tension motor power analyzer, can effectively solve the problem that prior art can't be monitored motor.The utility model relates to a kind of high-tension motor power analyzer; comprise mainboard and wrap in the outer shell of mainboard; described mainboard is provided with high-performance microprocessor; the sampling with high precision chip; voltage transformer (VT); current transformer; display screen interface; keyboard interface; digital signal load module and protection output module; high-performance microprocessor respectively with the sampling with high precision chip; display screen interface; keyboard interface; digital signal load module and protection output module; the sampling with high precision chip respectively with voltage transformer (VT); current transformer is connected, and shell is provided with display screen that is connected with display screen interface and the keyboard that is connected with keyboard interface.Described high-performance microprocessor is the ADSP-BF531 chip, and described sampling with high precision chip is the AD73360 chip.Advantage of the present utility model is: adopt high-performance microprocessor and sampling with high precision chip; can obtain the complete operational factor of high-tension motor; motor is carried out general protection, the under-run/over-run protection can effectively be provided, start overtime protection, harmonic protection, unbalance protection etc.
Description of drawings
Accompanying drawing 2 is a shell mechanism synoptic diagram of the present utility model.
Embodiment
Comprise mainboard 1 among the figure and wrap in the outer shell 2 of mainboard; described mainboard is provided with high-performance microprocessor 3; sampling with high precision chip 4; voltage transformer (VT) 5; current transformer 6; display screen interface 7; keyboard interface 8; digital signal load module 9 and protection output module 10; high-performance microprocessor respectively with the sampling with high precision chip; display screen interface; keyboard interface; digital signal load module and protection output module; the sampling with high precision chip respectively with voltage transformer (VT); current transformer is connected, and shell 2 is provided with display screen 11 that is connected with display screen interface 7 and the keyboard 12 that is connected with keyboard interface 8.
In the utility model work, the first voltage and current signal with motor of voltage transformer (VT) summation current transformer is converted to " low-voltage signal " and delivers to the sampling with high precision chip, the sampling with high precision chip is sampled to described " low-voltage signal " and is become digital signal to deliver to high-performance microprocessor analog signal conversion, high-performance microprocessor carries out analyzing and processing to the digital signal of input, can draw comprehensive operational factor of high-tension motor.
Described high-performance microprocessor is the ADSP-BF531 chip, and described sampling with high precision chip is the AD73360 chip.
The ADSP-BF531 chip is 16 fixed point microprocessors, two MAC, 1x is to 63xPLL, 12 passage DMA, maximum operation frequency 400MHz, ADSP-BF531 chip have software control dynamic power management ability flexibly, can change frequency of operation and operating voltage simultaneously, have real-time clock, WatchDog Timer, auto-baud adjustment function, can realize two-dimentional DMA.
The AD73360 chip has six 16 high speed analog input channels, being particularly suitable for three-phase system operation power parameter investigating class uses, three-phase voltage and three-phase current synchronized sampling ∑-Δ oversampling technique can directly be nursed one's health collection to small sensor signal.The AD73360 chip has 8 control registers able to programme, conveniently ADC is carried out gain control, and sample frequency and transmission frequency are controlled.The AD73360 chip can allow the simulating signal from the direct current to 4kHz to pass through, and group delay (signal waveform then prolong) is: 25us/CH, and signal to noise ratio (S/N ratio) is 76dB, sample frequency is up to 64kS/s.
User of the present utility model can be by standard signal and the protecting standard of button to the microprocessor input motor; the utility model can be according to the protecting standard of user input and the real-time output protection signal of operation conditions of motor, and demonstrates the operational factor of motor on LCD display.The utility model can be monitored external control signal by the digital signal input interface simultaneously, by output interface output motor alerting signal and guard signal, realizes the safeguard protection of high-tension motor.
Claims (4)
1. high-tension motor power analyzer; comprise mainboard and wrap in the outer shell of mainboard; it is characterized in that: described mainboard is provided with high-performance microprocessor; the sampling with high precision chip; voltage transformer (VT); current transformer; display screen interface; keyboard interface; digital signal load module and protection output module; high-performance microprocessor respectively with the sampling with high precision chip; display screen interface; keyboard interface; digital signal load module and protection output module; the sampling with high precision chip respectively with voltage transformer (VT); current transformer is connected, and shell is provided with display screen that is connected with display screen interface and the keyboard that is connected with keyboard interface.
2. a kind of high-tension motor power analyzer as claimed in claim 1 is characterized in that: described display screen is the LCD LCDs.
3. a kind of high-tension motor power analyzer as claimed in claim 1 is characterized in that: described high-performance microprocessor is the ADSP-BF531 chip.
4. a kind of high-tension motor power analyzer as claimed in claim 1 is characterized in that: described sampling with high precision chip is the AD73360 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069567U CN201378183Y (en) | 2009-03-27 | 2009-03-27 | High voltage motor power analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069567U CN201378183Y (en) | 2009-03-27 | 2009-03-27 | High voltage motor power analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378183Y true CN201378183Y (en) | 2010-01-06 |
Family
ID=41518300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920069567U Expired - Fee Related CN201378183Y (en) | 2009-03-27 | 2009-03-27 | High voltage motor power analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201378183Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799500A (en) * | 2010-02-26 | 2010-08-11 | 上海新时达电气股份有限公司 | Fault generation system based on analog quantity |
| CN104793049A (en) * | 2015-04-13 | 2015-07-22 | 武汉大学 | Digital power meter |
-
2009
- 2009-03-27 CN CN200920069567U patent/CN201378183Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799500A (en) * | 2010-02-26 | 2010-08-11 | 上海新时达电气股份有限公司 | Fault generation system based on analog quantity |
| CN104793049A (en) * | 2015-04-13 | 2015-07-22 | 武汉大学 | Digital power meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20120327 |