CN203119619U - Microcomputer harmonic elimination device - Google Patents
Microcomputer harmonic elimination device Download PDFInfo
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- CN203119619U CN203119619U CN2012205214484U CN201220521448U CN203119619U CN 203119619 U CN203119619 U CN 203119619U CN 2012205214484 U CN2012205214484 U CN 2012205214484U CN 201220521448 U CN201220521448 U CN 201220521448U CN 203119619 U CN203119619 U CN 203119619U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
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Abstract
The utility model provides a microcomputer harmonic elimination device which comprises the following components: a central processing module, a man-machine interaction module, a harmonic elimination output module, a remote-control switching quantity output module, an analog quantity input module, a RS485 communication module, a reset circuit module and a clock module. The microcomputer harmonic elimination device further comprises a human body induction module and a voice alarm module. The output end of an open delta connection of a voltage transformer (PT) is connected with the analog quantity input module. The output end of the analog quantity input module is connected with the central processing module. The microcomputer harmonic elimination device can be used in a 3-220kV voltage transformer (PT) cabinet, and can determine faults such as grounding, resonance and overvoltage through acquiring the voltage of the open delta connection of the PT. Furthermore the microcomputer harmonic elimination device has the functions of human body induction and voice alarm.
Description
Technical field
The utility model relates to a kind of electric system protection device, particularly a kind of microcomputer harmonic elimination apparatus.
Background technology
In electric power system, owing to the nonlinear inductance of voltage transformer and the coupling of line mutual-ground capacitor cause ferro-resonance over-voltage, directly threaten the safe operation of electric power system, can cause the blast of voltage transformer when serious, cause the accident.Solution commonly used is to adopt intelligent microcomputer harmonic elimination apparatus diagnosis and eliminate fault, but existing microcomputer harmonic elimination apparatus has only the outlet of indicator light and alarm relay after electric power system is broken down, and there is certain time-delay the alarm relay time.When the user went to patrol and examine, device did not have other indications and prompt facility except indicator light, sometimes because problems such as light make the user be difficult to see clearly the information such as fault data of liquid crystal display.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of microcomputer harmonic elimination apparatus, this device can be used in voltage transformer (PT) cabinet of 3～220kV, by gathering the triangle opening voltage of PT, can differentiate faults such as ground connection, resonance, overvoltage, and have the function of human body sensing and audio alert.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of microcomputer harmonic elimination apparatus, comprise central processing module, human-computer interaction module, harmonic elimination output module, remote control switch amount output module, analog quantity input module, RS485 communication module, reset circuit module, clock module, also comprise human body induction module, audio alert module; Human-computer interaction module, harmonic elimination output module, remote control switch amount output module, analog quantity input module, RS485 communication module, reset circuit module, clock module, human body induction module, audio alert module all link to each other with central processing module, the output of voltage transformer (PT) open delta is connected with the analog quantity input module, and the output of analog quantity input module links to each other with central control module.
Wherein, described central processing module is made up of microprocessor MSP430f149 chip, a slice 74HC245 bidirectional bus transponder chip, eight SI PO shift register chips of a slice 74HC164; The P4.0-P4.7 port bus of microprocessor MSP430f149 chip is connected with the data/address bus of the liquid-crystal display section of human-computer interaction module, and the P1.0-P1.1 of microprocessor MSP430f149 chip and P1.4-P1.7 port bus are connected with the button partial data bus of human-computer interaction module; The P2.0-P2.1 port bus of microprocessor MSP430f149 chip is connected with input B2, the B3 of 74HC245 chip respectively, the P2.3-P2.6 port bus of microprocessor MSP430f149 chip is connected with the input B4-B7 of 74HC245 chip respectively, the output terminals A 6 of 74HC245 chip, A7 link to each other with input 1,8 pin of 74HC164 chip respectively as data/address bus, output Q4, the Q5 of 74HC164 chip is connected with the harmonic elimination output module, and the output Q0-Q2 of 74HC164 chip is connected with remote control switch amount output module.
Described harmonic elimination output module comprises two TLP521-1 photoelectric isolated chip U1 and U2, two IN4148 diode D1 and D2 and two BTA41-700B controllable silicon BTA1 and BTA2; Output Q4, the Q5 of 74HC164 chip links to each other with input 1 pin of TLP521-1 photoelectric isolated chip U1, U2 through resistance respectively, output 4 pin of U1, U2 link to each other with input 3 pin of BTA41-700B controllable silicon BTA1 and BTA2 with diode through resistance respectively, and output 1 pin of BTA41-700B controllable silicon BTA1 and BTA2 is connected with outside PT open delta.
Described remote control switch amount output module comprises three TLP521-1 photoelectric isolated chip U3, U4, U5, a slice ULN2004 chip, three SRD-24VDC-SL-C alarm relay JDJ, XZJ, GYJ; Input 1 pin of TLP521-1 photoelectric isolated chip U3, U4, U5 links to each other with output Q2, Q1, the Q0 of 74HC164 chip respectively through resistance, output 4 pin of U3, U4, U5 are connected with input 2 pin of alarm relay JDJ, XZJ, GYJ respectively through the ULN2004 chip, output 4 pin of relay J DJ, XZJ, GYJ are connected to remote control output port ground connection, resonance, the overvoltage that device is reserved respectively, and 3 pin of three alarm relaies are connected with power supply GND.
Described analog quantity input module is made up of tension measuring circuit, operational amplifier LM324 chip; The input of tension measuring circuit links to each other with the output of PT open delta, the output of tension measuring circuit is connected to input 2 pin and 3 pin of operational amplifier LM324 chip, and output 1 pin of operational amplifier LM324 chip is connected through the P6.5 port of resistance with microprocessor MSP430f149 chip.
Described RS485 communication module comprises MAX485 chip and three TLP521-1 photoelectric isolated chip U1, U2, U3; Input 2 pin of TLP521-1 photoelectric isolated chip U2 are connected with the P3.6/UTXD1 of microprocessor MSP430f149 chip, output 3 pin of TLP521-1 photoelectric isolated chip U2 are connected to 4 pin of MAX485 chip, input 2 pin of TLP521-1 photoelectric isolated chip U1 are connected with the P3.3/UCLKO of microprocessor MSP430f149 chip, output 3 pin of TLP521-1 photoelectric isolated chip U1 are connected to 2 of MAX485 chip, 3 pin, input 1 pin of TLP521-1 photoelectric isolated chip U3 is connected with the P3.7/URXD1 of microprocessor MSP430f149 chip, output 4 pin of TLP521-1 photoelectric isolated chip U3 are connected to 1 pin of MAX485 chip, 6 of MAX485 chip, 7 pin are connected to the TA+ of the RS485 PORT COM of device reservation, TB-.
Described reset circuit module comprises microprocessor voltage monitor IMP809R chip, and 2 pin of IMP809R chip are connected with the P5.6/ACLK port of microprocessor MSP430f149 chip, and 3 pin of IMP809 chip are connected with power supply VCC.
Described clock module comprises a BATCR2032 button cell, a slice A8563 clock chip; 1,2 pin of BATCR2032 are connected with input 3,8 pin of A8563 chip respectively, and the output 5 of A8563 chip, 6 pin are connected with P6.7, the P6.6 port of microprocessor MSP430f149 chip respectively.
Described human body induction module comprises a human body inductive probe J10, and output 2 pin of human body sensing probe J10 are connected with the P3.4/UTXDO port of microprocessor MSP430f149 chip, and 1 pin of human body sensing probe J10 meets power supply+5V, and 3 pin meet power supply GND.
Described audio alert module comprises a slice PM66 speech chip UY16, input 4 pin of speech chip UY16 are connected with the P6.1/A1 port of microprocessor MSP430f149 chip, input 5 pin of speech chip UY16 are connected with the P6.2/A2 port of microprocessor MSP430f149 chip, output 24 pin of speech chip UY16 are connected with the P6.0/AO port of microprocessor MSP430f149 chip, and the output 13 of speech chip UY16,14 pin are connected to the voice output port S1 that device is reserved.
Good effect of the present utility model is: the function that has increased human body sensing and audio alert on the basis of existing apparatus function, when the user patrols and examines, as long as near 1.5～2 meters in device, device will start the backlight of liquid crystal automatically, make display screen high-visible, make things convenient for the user to check real time data and relevant information.If existing fault takes place, then when the close device of user, when the LCD backlight lamp starts, install meeting automatic information broadcast fault message, comprise the contents such as time, fault type and fault value that fault takes place, the number of times of voice broadcast also can arrange in the parameter interface.The report of sound can make the more visual and accurate understanding fault of user, in order in time remove fault, guarantees the safe and reliable operation of voltage transformer (PT) and supply line.
Description of drawings
Fig. 1 is theory diagram of the present utility model
Fig. 2 is microprocessor MSP430f149 chip of the present utility model, human body induction module and audio alert module circuit diagram
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is elaborated.
See figures.1.and.2, the utility model preferred embodiment a kind of microcomputer harmonic elimination apparatus is provided, comprise central processing module, human-computer interaction module, harmonic elimination output module, remote control switch amount output module, analog quantity input module, RS485 communication module, reset circuit module, clock module, also comprise human body induction module, audio alert module; Human-computer interaction module, harmonic elimination output module, remote control switch amount output module, analog quantity input module, RS485 communication module, reset circuit module, clock module, human body induction module, audio alert module all link to each other with central processing module, the output of voltage transformer (PT) open delta is connected with the analog quantity input module, and the output of analog quantity input module links to each other with central control module.
Wherein, described central processing module is made up of microprocessor MSP430f149 chip, a slice 74HC245 bidirectional bus transponder chip, eight SI PO shift register chips of a slice 74HC164; The P4.0-P4.7 port bus of microprocessor MSP430f149 chip is connected with the data/address bus of the liquid-crystal display section of human-computer interaction module, and the P1.0-P1.1 of microprocessor MSP430f149 chip and P1.4-P1.7 port bus are connected with the button partial data bus of human-computer interaction module; The P2.0-P2.1 port bus of microprocessor MSP430f149 chip is connected with input B2, the B3 of 74HC245 chip respectively, the P2.3-P2.6 port bus of microprocessor MSP430f149 chip is connected with the input B4-B7 of 74HC245 chip respectively, the output terminals A 6 of 74HC245 chip, A7 link to each other with input 1,8 pin of 74HC164 chip respectively as data/address bus, output Q4, the Q5 of 74HC164 chip is connected with the harmonic elimination output module, and the output Q0-Q2 of 74HC164 chip is connected with remote control switch amount output module.
Described harmonic elimination output module comprises two TLP521-1 photoelectric isolated chip U1 and U2, two IN4148 diode D1 and D2 and two BTA41-700B controllable silicon BTA1 and BTA2; Output Q4, the Q5 of 74HC164 chip links to each other with input 1 pin of TLP521-1 photoelectric isolated chip U1, U2 through resistance respectively, output 4 pin of U1, U2 link to each other with input 3 pin of BTA41-700B controllable silicon BTA1 and BTA2 with diode through resistance respectively, and output 1 pin of BTA41-700B controllable silicon BTA1 and BTA2 is connected with outside PT open delta.
Described remote control switch amount output module comprises three TLP521-1 photoelectric isolated chip U3, U4, U5, a slice ULN2004 chip, three SRD-24VDC-SL-C alarm relay JDJ, XZJ, GYJ; Input 1 pin of TLP521-1 photoelectric isolated chip U3, U4, U5 links to each other with output Q2, Q1, the Q0 of 74HC164 chip respectively through resistance, output 4 pin of U3, U4, U5 are connected with input 2 pin of alarm relay JDJ, XZJ, GYJ respectively through the ULN2004 chip, output 4 pin of relay J DJ, XZJ, GYJ are connected to remote control output port ground connection, resonance, the overvoltage that device is reserved respectively, and 3 pin of three alarm relaies are connected with power supply GND.
Described analog quantity input module is made up of tension measuring circuit, operational amplifier LM324 chip; The input of tension measuring circuit links to each other with the output of PT open delta, the output of tension measuring circuit is connected to input 2 pin and 3 pin of operational amplifier LM324 chip, and output 1 pin of operational amplifier LM324 chip is connected through the P6.5 port of resistance with microprocessor MSP430f149 chip.
Described RS485 communication module comprises MAX485 chip and three TLP521-1 photoelectric isolated chip U1, U2, U3; Input 2 pin of TLP521-1 photoelectric isolated chip U2 are connected with the P3.6/UTXD1 of microprocessor MSP430f149 chip, output 3 pin of TLP521-1 photoelectric isolated chip U2 are connected to 4 pin of MAX485 chip, input 2 pin of TLP521-1 photoelectric isolated chip U1 are connected with the P3.3/UCLKO of microprocessor MSP430f149 chip, output 3 pin of TLP521-1 photoelectric isolated chip U1 are connected to 2 of MAX485 chip, 3 pin, input 1 pin of TLP521-1 photoelectric isolated chip U3 is connected with the P3.7/URXD1 of microprocessor MSP430f149 chip, output 4 pin of TLP521-1 photoelectric isolated chip U3 are connected to 1 pin of MAX485 chip, 6 of MAX485 chip, 7 pin are connected to the TA+ of the RS485 PORT COM of device reservation, TB-.
Described reset circuit module comprises microprocessor voltage monitor IMP809R chip, and 2 pin of IMP809R chip are connected with the P5.6/ACLK port of microprocessor MSP430f149 chip, and 3 pin of IMP809 chip are connected with power supply VCC.
Described clock module comprises a BATCR2032 button cell, a slice A8563 clock chip; 1,2 pin of BATCR2032 are connected with input 3,8 pin of A8563 chip respectively, and the output 5 of A8563 chip, 6 pin are connected with P6.7, the P6.6 port of microprocessor MSP430f149 chip respectively.
Described human body induction module comprises a human body inductive probe J10, and output 2 pin of human body sensing probe J10 are connected with the P3.4/UTXD0 port of microprocessor MSP430f149 chip, and 1 pin of human body sensing probe J10 meets power supply+5V, and 3 pin meet power supply GND.
Described audio alert module comprises a slice PM66 speech chip UY16, input 4 pin of speech chip UY16 are connected with the P6.1/A1 port of microprocessor MSP430f149 chip, input 5 pin of speech chip UY16 are connected with the P6.2/A2 port of microprocessor MSP430f149 chip, output 24 pin of speech chip UY16 are connected with the P6.0/AO port of microprocessor MSP430f149 chip, and the output 13 of speech chip UY16,14 pin are connected to the voice output port S1 that device is reserved.
As human body near device 1.5～2 meters the time, human body induction module can be exported a low level signal and give CPU, after CPU collected low level human body signal, CPU sent by the audio alert module and welcomes the sound that uses or report the fault message that takes place recently.The CPU circle collection to residual voltage value when reaching the alert if of ground connection, resonance or overvoltage, the liquid crystal display fault message, the output relay of reporting to the police accordingly action, audio alert module report fault message, corresponding ground connection, resonance or overvoltage indicator light are lighted.
Above-described only is preferred embodiment of the present utility model; institute is understood that; the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; and be not used in and limit protection range of the present utility model; all any modifications of within thought of the present utility model and principle, making, be equal to replacement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. microcomputer harmonic elimination apparatus, comprise central processing module, human-computer interaction module, the harmonic elimination output module, remote control switch amount output module, the analog quantity input module, the RS485 communication module, the reset circuit module, clock module, it is characterized in that: also comprise human body induction module, the audio alert module, human-computer interaction module, the harmonic elimination output module, remote control switch amount output module, the analog quantity input module, the RS485 communication module, the reset circuit module, clock module, human body induction module, the audio alert module all links to each other with central processing module, the output of voltage transformer (PT) open delta is connected with the analog quantity input module, and the output of analog quantity input module links to each other with central control module.
2. a kind of microcomputer harmonic elimination apparatus according to claim 1, it is characterized in that: described central processing module is made up of microprocessor MSP430f149 chip, a slice 74HC245 bidirectional bus transponder chip, eight SI PO shift register chips of a slice 74HC164; The P4.0-P4.7 port bus of microprocessor MSP430f149 chip is connected with the data/address bus of the liquid-crystal display section of human-computer interaction module, and the P1.0-P1.1 of microprocessor MSP430f149 chip and P1.4-P1.7 port bus are connected with the button partial data bus of human-computer interaction module; The P2.0-P2.1 port bus of microprocessor MSP430f149 chip is connected with input B2, the B3 of 74HC245 chip respectively, the P2.3-P2.6 port bus of microprocessor MSP430f149 chip is connected with the input B4-B7 of 74HC245 chip respectively, the output terminals A 6 of 74HC245 chip, A7 link to each other with input 1,8 pin of 74HC164 chip respectively as data/address bus, output Q4, the Q5 of 74HC164 chip is connected with the harmonic elimination output module, and the output Q0-Q2 of 74HC164 chip is connected with remote control switch amount output module.
3. a kind of microcomputer harmonic elimination apparatus according to claim 1 is characterized in that: described harmonic elimination output module comprises two TLP521-1 photoelectric isolated chip U1 and U2, two IN4148 diode D1 and D2 and two BTA41-700B controllable silicon BTA1 and BTA2; Output Q4, the Q5 of 74HC164 chip links to each other with input 1 pin of TLP521-1 photoelectric isolated chip U1, U2 through resistance respectively, output 4 pin of U1, U2 link to each other with input 3 pin of BTA41-700B controllable silicon BTA1 and BTA2 with diode through resistance respectively, and output 1 pin of BTA41-700B controllable silicon BTA1 and BTA2 is connected with outside PT open delta.
4. a kind of microcomputer harmonic elimination apparatus according to claim 1, it is characterized in that: described remote control switch amount output module comprises three TLP521-1 photoelectric isolated chip U3, U4, U5, a slice ULN2004 chip, three SRD-24VDC-SL-C alarm relay JDJ, XZJ, GYJ; Input 1 pin of TLP521-1 photoelectric isolated chip U3, U4, U5 links to each other with output Q2, Q1, the Q0 of 74HC164 chip respectively through resistance, output 4 pin of U3, U4, U5 are connected with input 2 pin of alarm relay JDJ, XZJ, GYJ respectively through the ULN2004 chip, output 4 pin of relay J DJ, XZJ, GYJ are connected to remote control output port ground connection, resonance, the overvoltage that device is reserved respectively, and 3 pin of three alarm relaies are connected with power supply GND.
5. a kind of microcomputer harmonic elimination apparatus according to claim 1, it is characterized in that: described analog quantity input module is made up of tension measuring circuit, operational amplifier LM324 chip; The input of tension measuring circuit links to each other with the output of PT open delta, the output of tension measuring circuit is connected to input 2 pin and 3 pin of operational amplifier LM324 chip, and output 1 pin of operational amplifier LM324 chip is connected through the P6.5 port of resistance with microprocessor MSP430f149 chip.
6. a kind of microcomputer harmonic elimination apparatus according to claim 1 is characterized in that: described RS485 communication module comprises MAX485 chip and three TLP521-1 photoelectric isolated chip U1, U2, U3; Input 2 pin of TLP521-1 photoelectric isolated chip U2 are connected with the P3.6/UTXD1 of microprocessor MSP430f149 chip, output 3 pin of TLP521-1 photoelectric isolated chip U2 are connected to 4 pin of MAX485 chip, input 2 pin of TLP521-1 photoelectric isolated chip U1 are connected with the P3.3/UCLKO of microprocessor MSP430f149 chip, output 3 pin of TLP521-1 photoelectric isolated chip U1 are connected to 2 of MAX485 chip, 3 pin, input 1 pin of TLP521-1 photoelectric isolated chip U3 is connected with the P3.7/URXD1 of microprocessor MSP430f149 chip, output 4 pin of TLP521-1 photoelectric isolated chip U3 are connected to 1 pin of MAX485 chip, 6 of MAX485 chip, 7 pin are connected to the TA+ of the RS485 PORT COM of device reservation, TB-.
7. a kind of microcomputer harmonic elimination apparatus according to claim 1, it is characterized in that: described reset circuit module comprises microprocessor voltage monitor IMP809R chip, 2 pin of IMP809R chip are connected with the P5.6/ACLK port of microprocessor MSP430f149 chip, and 3 pin of IMP809 chip are connected with power supply VCC.
8. a kind of microcomputer harmonic elimination apparatus according to claim 1, it is characterized in that: described clock module comprises a BATCR2032 button cell, a slice A8563 clock chip; 1,2 pin of BATCR2032 are connected with input 3,8 pin of A8563 chip respectively, and the output 5 of A8563 chip, 6 pin are connected with P6.7, the P6.6 port of microprocessor MSP430f149 chip respectively.
9. a kind of microcomputer harmonic elimination apparatus according to claim 1, it is characterized in that: described human body induction module comprises a human body inductive probe J10, output 2 pin of human body sensing probe J10 are connected with the P3.4/UTXD0 port of microprocessor MSP430f149 chip, 1 pin of human body sensing probe J10 meets power supply+5V, and 3 pin meet power supply GND.
10. a kind of microcomputer harmonic elimination apparatus according to claim 1, it is characterized in that: described audio alert module comprises a slice PM66 speech chip UY16, input 4 pin of speech chip UY16 are connected with the P6.1/A1 port of microprocessor MSP430f149 chip, input 5 pin of speech chip UY16 are connected with the P6.2/A2 port of microprocessor MSP430f149 chip, output 24 pin of speech chip UY16 are connected the output 13 of speech chip UY16 with the P6.0/AO port of microprocessor MSP430f149 chip, 14 pin are connected to the voice output port S1 that device is reserved.
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| CN2012205214484U CN203119619U (en) | 2012-10-12 | 2012-10-12 | Microcomputer harmonic elimination device |
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| CN2012205214484U CN203119619U (en) | 2012-10-12 | 2012-10-12 | Microcomputer harmonic elimination device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855704A (en) * | 2014-03-28 | 2014-06-11 | 安徽巨森电器有限公司 | Primary and secondary combined resonance elimination device |
| CN104516405A (en) * | 2013-09-27 | 2015-04-15 | 施耐德电器工业公司 | Human-computer interaction device |
| CN105958454A (en) * | 2016-07-22 | 2016-09-21 | 安徽亚辉电气自动化有限公司 | Control analysis system based on microcomputer resonance elimination device |
| CN103855704B (en) * | 2014-03-28 | 2016-11-30 | 安徽巨森电器有限公司 | The harmonic elimination apparatus that an a kind of secondary phase combines |
| CN106292419A (en) * | 2016-07-22 | 2017-01-04 | 安徽亚辉电气自动化有限公司 | A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet |
| CN106939455A (en) * | 2017-05-20 | 2017-07-11 | 杭州电子科技大学 | Ring throstle broken yarn-detecting circuit |
| CN107332220A (en) * | 2017-08-29 | 2017-11-07 | 安徽三和电力技术有限公司 | For microcomputer harmonic elimination device control system |
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2012
- 2012-10-12 CN CN2012205214484U patent/CN203119619U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516405A (en) * | 2013-09-27 | 2015-04-15 | 施耐德电器工业公司 | Human-computer interaction device |
| CN103855704A (en) * | 2014-03-28 | 2014-06-11 | 安徽巨森电器有限公司 | Primary and secondary combined resonance elimination device |
| CN103855704B (en) * | 2014-03-28 | 2016-11-30 | 安徽巨森电器有限公司 | The harmonic elimination apparatus that an a kind of secondary phase combines |
| CN105958454A (en) * | 2016-07-22 | 2016-09-21 | 安徽亚辉电气自动化有限公司 | Control analysis system based on microcomputer resonance elimination device |
| CN106292419A (en) * | 2016-07-22 | 2017-01-04 | 安徽亚辉电气自动化有限公司 | A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet |
| CN106292419B (en) * | 2016-07-22 | 2018-07-24 | 安徽亚辉电气自动化有限公司 | A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet |
| CN106939455A (en) * | 2017-05-20 | 2017-07-11 | 杭州电子科技大学 | Ring throstle broken yarn-detecting circuit |
| CN106939455B (en) * | 2017-05-20 | 2023-10-13 | 杭州电子科技大学 | Yarn breakage detection circuit of ring spinning frame |
| CN107332220A (en) * | 2017-08-29 | 2017-11-07 | 安徽三和电力技术有限公司 | For microcomputer harmonic elimination device control system |
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