CN202076781U - Protector with temperature monitoring - Google Patents
Protector with temperature monitoring Download PDFInfo
- Publication number
- CN202076781U CN202076781U CN2011201480440U CN201120148044U CN202076781U CN 202076781 U CN202076781 U CN 202076781U CN 2011201480440 U CN2011201480440 U CN 2011201480440U CN 201120148044 U CN201120148044 U CN 201120148044U CN 202076781 U CN202076781 U CN 202076781U
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- electrically connected
- microprocessor
- unit
- temperature
- temperature monitoring
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Abstract
The utility model discloses a protector with temperature monitoring, which comprises a microprocessor, an electric parameter sampling unit, a switch-in circuit module, a power source module, a relay switch-off control unit, a communication unit and a display unit. The electric parameter sampling unit, the switch-in circuit module and the power source module are electrically connected to the input interface of the microprocessor; the relay switch-off control unit is electrically connected to the output interface of the microprocessor; the communication unit is electrically connected to a communication interface of the microprocessor; the display unit is electrically connected to the communication unit; the input interface of the microprocessor is electrically connected with a temperature monitoring unit; the temperature monitoring unit comprises a temperature signal conditioning circuit of which the output end is electrically connected with the input interface of the microprocessor; and the signal input end of the temperature signal conditioning circuit is electrically connected with the signal output end of a temperature sensor. The protector with temperature monitoring has the advantages of realizing monitoring and protecting for electric parameters of mine switches, and meanwhile, achieving temperature monitoring and protecting for essential elements of the switches. Forewarning of trouble caused by overheat of contacts is realized, so that the trouble is prevented from being further enlarged, and the occurrence of heavy accidents is avoided.
Description
Technical field
The utility model relates to mining switch comprehensively monitoring protector, especially relates to the protector of being with temperature monitoring.
Background technology
At present, mining switch protector all is to protect according to the electric parameter failure judgement of supply line.Yet the initial stage electric parameter that some faults produce changes and is not obvious, changes the rising that is mainly reflected in temperature, as the problems such as rubescent heating of the contact of circuit breaker and contact, cable joint.Now the protector of Sheng Chaning can't be finished early warning and the processing to this type of fault, if these problems can not get discovery in time and solve, will cause the generation of electric power system major accident.Though existing device for detecting temperature, hot stall prior-warning device can be finished the monitoring to this type of fault, the cavity space that mining switch is narrow and small also is not suitable for the installation of this type of equipment.And, when electric substation progressively realizes unattended operation, also need to increase communication apparatus the temperature monitoring information uploading to Surveillance center, also increased equipment investment and maintenance cost thus.
Summary of the invention
The utility model purpose is to provide a kind of protector that relaying protection and temperature monitoring early warning are protected in the band temperature monitoring of one that collects.
For achieving the above object, the utility model can be taked following technical proposals:
The protector of band temperature monitoring described in the utility model, it comprises microprocessor, be electrically connected on described microprocessor input interface the electric parameter sampling unit, open into circuit module, power module, leave control unit with the relay that is electrically connected in the microprocessor output interface, and the communication unit and the display unit that is electrically connected on this communication unit that are electrically connected on the microprocessor communication interface; Be electrically connected with the temperature monitoring unit at the microprocessor input interface; Described temperature monitoring unit comprises the temperature signal regulation circuit that output is electrically connected with the microprocessor input interface, and described temperature signal regulation circuit signal input is electrically connected with the temperature sensor signal output.
Described electric parameter sampling unit comprises the A/D change-over circuit module that output is electrically connected with the microprocessor input interface, and the input interface of described A/D change-over circuit module is electrically connected with detection current transformer and detection voltage transformer signal output part by the detection signal modulate circuit respectively.
Described relay is left control unit and is comprised the photoelectric isolation module that is electrically connected on described microprocessor output interface, and described photoelectric isolation module output is electrically connected with the relay control end.
Described display unit comprises the demonstration microprocessor that is electrically connected with described communication unit by communication circuit module, with the LCD display module that is electrically connected on described demonstration microprocessor communication interface, and be electrically connected on the LED light that shows the microprocessor output interface.
When the utility model advantage is to realize mining switch electric parameter monitored and protect, reach temperature monitoring and protection to the switch critical piece.The fault that causes because of contact temperature is too high has been realized giving warning in advance, prevented the further expansion of fault, avoided the generation of major accident.Simultaneously, the utility model integrated level height, volume is little, is adapted to the installation of small space, has reduced the cost of investment of colliery electromechanical equipment, is of value to the raising economic benefit of enterprises.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, the protector of band temperature monitoring described in the utility model, it comprises microprocessor, be electrically connected on described microprocessor input interface electric parameter sampling unit 1, open into circuit module, power module, leave control unit 2 with the relay that is electrically connected in the microprocessor output interface, and the communication unit 3 and the display unit 4 that is electrically connected on this communication unit that are electrically connected on the microprocessor communication interface; Be electrically connected with temperature monitoring unit 5 at the microprocessor input interface; Described temperature monitoring unit 5 comprises the temperature signal regulation circuit that output is electrically connected with the microprocessor input interface, and described temperature signal regulation circuit signal input is electrically connected with the temperature sensor signal output.
Described electric parameter sampling unit 1 comprises the A/D change-over circuit module that output is electrically connected with the microprocessor input interface, and the input interface of described A/D change-over circuit module is electrically connected with detection current transformer and detection voltage transformer signal output part by the detection signal modulate circuit respectively.Electric parameters such as the voltage of controlled switch, electric current insert the utility model analog quantity input terminal by an instrument transformer conversion of switch back, be converted to small signal through described detection current transformer, detection voltage transformer, send into A/D change-over circuit module after signal conditioning circuit filtering after testing, the amplification and finish analog-to-digital conversion, the digital value after the conversion is sent into microprocessor.
Simultaneously, the cavity temperature of controlled switch or the temperature of critical piece are converted to resistance value through described temperature sensor, be small signal and after filtering and amplification, insert microprocessor through the temperature signal regulation circuit conversion then, change through the microprocessor internal analog to digital converter, and analog signals is converted to corresponding temperature value by set algorithm.
Described relay is left control unit 2 and is comprised the photoelectric isolation module that is electrically connected on described microprocessor output interface, and described photoelectric isolation module output is electrically connected with the relay control end.Switching values such as the position signalling of switch, energy storage signal through opening circuit module isolation and level conversion after deliver to microprocessor.Microprocessor calculates the electrical quantity data of gathering, and according to calculated value, default definite value with open into conditions such as amount signals and monitor and protect.As determine fault and produce and to need the tripping switch, then send sub-gate signal and leave control unit 2 through relay and finish sub-switching operation switch by microprocessor; Microprocessor carries out data interaction and control operation by the order that communication unit 3 receives on the CAN bus or display unit 4 sends.Display unit 4 regularly carries out exchanges data by communication unit 3 and microprocessor and shows on the LCD display module, or sends by LED light and to report to the police and protection information is indicated.
Claims (4)
1. protector with temperature monitoring, it comprises microprocessor, be electrically connected on described microprocessor input interface electric parameter sampling unit (1), open into circuit module, power module, leave control unit (2) with the relay that is electrically connected in the microprocessor output interface, and be electrically connected on the communication unit (3) of microprocessor communication interface and be electrically connected on the display unit (4) of this communication unit; It is characterized in that: be electrically connected with temperature monitoring unit (5) at the microprocessor input interface; Described temperature monitoring unit (5) comprises the temperature signal regulation circuit that output is electrically connected with the microprocessor input interface, and described temperature signal regulation circuit signal input is electrically connected with the temperature sensor signal output.
2. according to the protector of the described band temperature monitoring of claim 1; it is characterized in that: described electric parameter sampling unit (1) comprises the A/D change-over circuit module that output is electrically connected with the microprocessor input interface, and the input interface of described A/D change-over circuit module is electrically connected with detection current transformer and detection voltage transformer signal output part by the detection signal modulate circuit respectively.
3. according to the protector of claim 1 or 2 described band temperature monitorings; it is characterized in that: described relay is left control unit (2) and is comprised the photoelectric isolation module that is electrically connected on described microprocessor output interface, and described photoelectric isolation module output is electrically connected with the relay control end.
4. according to the protector of claim 1 or 2 described band temperature monitorings; it is characterized in that: described display unit (4) comprises the demonstration microprocessor that is electrically connected with described communication unit by communication circuit module; with the LCD display module that is electrically connected on described demonstration microprocessor communication interface, and be electrically connected on the LED light that shows the microprocessor output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201480440U CN202076781U (en) | 2011-05-11 | 2011-05-11 | Protector with temperature monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201480440U CN202076781U (en) | 2011-05-11 | 2011-05-11 | Protector with temperature monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202076781U true CN202076781U (en) | 2011-12-14 |
Family
ID=45114858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201480440U Expired - Lifetime CN202076781U (en) | 2011-05-11 | 2011-05-11 | Protector with temperature monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202076781U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542951A (en) * | 2012-07-17 | 2014-01-29 | 长春工业大学 | Mining temperature sensor |
| CN103954374A (en) * | 2014-05-22 | 2014-07-30 | 天津职业技术师范大学 | Remote temperature measuring device based on DS18B20 temperature sensor |
| CN107943158A (en) * | 2017-12-11 | 2018-04-20 | 合肥维博自动化科技有限公司 | A kind of automatic adjusument power output heating intelligent control card and its control method |
-
2011
- 2011-05-11 CN CN2011201480440U patent/CN202076781U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542951A (en) * | 2012-07-17 | 2014-01-29 | 长春工业大学 | Mining temperature sensor |
| CN103954374A (en) * | 2014-05-22 | 2014-07-30 | 天津职业技术师范大学 | Remote temperature measuring device based on DS18B20 temperature sensor |
| CN107943158A (en) * | 2017-12-11 | 2018-04-20 | 合肥维博自动化科技有限公司 | A kind of automatic adjusument power output heating intelligent control card and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |