CN103384061A - Microcomputer line protection monitoring device - Google Patents
Microcomputer line protection monitoring device Download PDFInfo
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- CN103384061A CN103384061A CN2012101347369A CN201210134736A CN103384061A CN 103384061 A CN103384061 A CN 103384061A CN 2012101347369 A CN2012101347369 A CN 2012101347369A CN 201210134736 A CN201210134736 A CN 201210134736A CN 103384061 A CN103384061 A CN 103384061A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
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- 238000004458 analytical method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
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- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
The invention discloses a microcomputer line protection monitoring device. The microcomputer line protection monitoring device comprises a structure comprising a main control unit module, a communication module, a display module, a power module, an analog input module, an analog output module, a state quantity input module and a state quantity output module, and is characterized in that the device can achieve protection functions, and has the functions of protecting high-setting definite time overcurrents, low-setting definite time overcurrents, low-setting inverse time overcurrents, high-setting definite time zero-sequence overcurrents, low-setting definite time zero-sequence overcurrents, low-setting inverse time zero-sequence overcurrents, external linkage and electric leakage, different protection functions can achieve overcurrent protection and zero-sequence protection of different time delay from 0.1s to 60 minutes by setting different parameters, a communication function can achieve three-remote functions, and therefore the aims of easily achieving the cooperation of interstage selectivity and the improving the automatic production degree of an overall system are achieved.
Description
Technical field
The present invention relates to a kind of route protection monitoring technique field, the particularly protection of microcomputer type low-voltage circuit, monitoring, control technology field.
Background technology
Distribution line protection relates to the problem of Electrical Safety and electricity consumption reliability two aspects, is the core of whole distribution design.The distribution line protection design mistake will directly cause breaking out of fire or electric shock accidents in the electric equipment operation process, jeopardize personal safety.At present low-voltage circuit protection multiselect with plastic shell circuit breaker, fuse or or residual current circuit breaker, realize fast tripping protection and long delay protection, do not have short delay protection.Be difficult in this case realize that inter-stage optionally coordinates, in case single phase ground fault occurs, may cause the upper and lower level situation of tripping operation together, event is magnified, cut off the circuit that can continue to produce, cause unnecessary economic loss.Circuit breaker can not provide on-the-spot operation Real-Time Monitoring signal, logout and operation note in addition, can not satisfy the requirement of modernization, automated production.
Summary of the invention
The objective of the invention is for the existence that overcomes existing system may be time extension and the deficiency that can not provide the Site Detection operation information to satisfy automated production, designed and a kind ofly can realize easily that inter-stage optionally coordinates, improves the microcomputer type route protection supervising device of whole system automated production degree.Its technical scheme that adopts is: comprise the structure of main control unit module, power module, quantity of state input module, quantity of state output module, analog input module, analog output module, communication module and display module, it is characterized in that: quantity of state input module, quantity of state output module, analog input module, analog output module, communication module and display module all are connected with the main control unit module; Device is provided with high specified time overcurrent, low specified time overcurrent, low inverse-time overcurrent, high specified time zero sequence overcurrent, low specified time zero sequence overcurrent, low inverse time lag zero sequence overcurrent, outside interlock, the earth leakage protective structure set set set set set set.obvious advantage and the effect implemented after this technology are: the analog input module realizes three-phase current, three-phase voltage and electric leakage input, the quantity of state input module is realized the on-off state input, the main control unit module realizes the functions such as protection, detection, record according to input signal, the quantity of state output module is realized trip protection, warning, control function, analog output module is realized that analog signal becomes and is sent function, communication module is realized the system data function of exchange, the function that human-computer interface module provides operation interface to realize that human-computer dialogue is measured has three-phase current, zero-sequence current, leakage current, three-phase voltage, active power, reactive power, control function network remote control is arranged, switching value is controlled, contactor is controlled, management function has number of operations, operation note, the tripping alarm record, the displacement record, the function of display module has real time data to show, record queries, panel operation, adjust or inquiry unit definite value and parameter, defencive function can be realized overcurrent protection and the zero-sequenceprotection of the different delayed time of 0.1s to 60 minute by setting different parameters, communication function can realize " three is distant " function, be easy to realize that inter-stage optionally coordinates and improve the purpose of whole system automated production degree thereby reach.
Description of drawings
Fig. 1 is structural representation of the present invention;
Wherein: 1-main control unit module, 2-communication module, 3-display module, 4-power module, 5-analog input module, 6-analog output module, 7-quantity of state input module, 8-quantity of state output module;
Fig. 2 is the structural representation that analog output module connects;
Fig. 3 is the structural representation that the analog input module connects;
Fig. 4 is the structural representation that the quantity of state output module connects;
Fig. 5 is the structural representation that the quantity of state input module connects;
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
see accompanying drawing 1, main control unit module (1) is the core of device, MCU adopts the MSP430F149 of TI company, has abundant internal hardware resources, input signal is carried out computing, logic analysis, send and control or the protection action, produce data record, power module (4) is accessible to be handed over, direct current 220V power supply, the power supply that provides each module to need, display module (3) provides the man-machine interface of optimization, can inquire about all measurement data, record data, management data, and can inquire about and adjust various protection definite values and device parameter, communication module (2) provides different fieldbus modes, satisfy the different system requirement, analog input module (5) has the voltage input, the electric current input, the electric leakage input, analog output module (6) provides multi-signal to become and send the output of 4-20mA signal, quantity of state input module (7) provides 8 tunnel input passive bus inputs, quantity of state output module (8) provides 4 tunnel warning tripping operations and controls output, can realize conveniently that inter-stage optionally coordinates, improve whole system automated production degree.
see accompanying drawing 1, analog input module (5) and quantity of state input module (7) are issued main control unit module (1) to the signal that gathers, carry out operational analysis by main control unit module (1), sending instruction or information exports to analog output module (6) and quantity of state output module (8), analog output module (6) can change the electric quantity signal that the user needs into that 4-20mA exports to long-range DCS or other table meters show or control, quantity of state output module (6) can be carried out tripping operation, report to the police, divide-shut brake is controlled, remote control, action Deng outlet, complete to the control of circuit with to user's caution, power module (4) provides the power supply that needs for modules, set the Protection parameters of each inter-stage device, can realize easily that inter-stage optionally coordinates.
Claims (1)
1. microprocessor-based line protection monitoring device, comprise the structure of main control unit module, communication module, display module, power module, analog input module, analog output module, quantity of state input module and quantity of state output module, it is characterized in that: quantity of state input module, quantity of state output module, analog input module, analog output module, communication module and display module all are connected with the main control unit module; Device is provided with high specified time overcurrent, low specified time overcurrent, low inverse-time overcurrent, high specified time zero sequence overcurrent, low specified time zero sequence overcurrent, low inverse time lag zero sequence overcurrent, outside interlock, the earth leakage protective structure set set set set set set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101347369A CN103384061A (en) | 2012-05-03 | 2012-05-03 | Microcomputer line protection monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101347369A CN103384061A (en) | 2012-05-03 | 2012-05-03 | Microcomputer line protection monitoring device |
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| CN103384061A true CN103384061A (en) | 2013-11-06 |
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| CN2012101347369A Pending CN103384061A (en) | 2012-05-03 | 2012-05-03 | Microcomputer line protection monitoring device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569404Y (en) * | 2002-08-26 | 2003-08-27 | 上海华建电力设备有限公司 | Low voltage motor protective monitor for microprocessor |
| CN101047084A (en) * | 2006-07-03 | 2007-10-03 | 浙江中凯电器有限公司 | Control device of intelligent control and protective switch electrical equipment |
| WO2008020713A1 (en) * | 2006-08-16 | 2008-02-21 | Bo-Kyeong Kim | Insulation monitoring system & insulation detecting method for electric power supply system |
| CN102237669A (en) * | 2010-04-27 | 2011-11-09 | 上海华建电力设备股份有限公司 | Microprocessor-based line protection monitoring device |
| CN202651777U (en) * | 2012-05-03 | 2013-01-02 | 上海华建电力设备股份有限公司 | Microcomputer-based line protection monitoring device |
-
2012
- 2012-05-03 CN CN2012101347369A patent/CN103384061A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569404Y (en) * | 2002-08-26 | 2003-08-27 | 上海华建电力设备有限公司 | Low voltage motor protective monitor for microprocessor |
| CN101047084A (en) * | 2006-07-03 | 2007-10-03 | 浙江中凯电器有限公司 | Control device of intelligent control and protective switch electrical equipment |
| WO2008020713A1 (en) * | 2006-08-16 | 2008-02-21 | Bo-Kyeong Kim | Insulation monitoring system & insulation detecting method for electric power supply system |
| CN102237669A (en) * | 2010-04-27 | 2011-11-09 | 上海华建电力设备股份有限公司 | Microprocessor-based line protection monitoring device |
| CN202651777U (en) * | 2012-05-03 | 2013-01-02 | 上海华建电力设备股份有限公司 | Microcomputer-based line protection monitoring device |
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Application publication date: 20131106 |