CN106092373A - Bus duct temperature rise supervision and warning system - Google Patents
Bus duct temperature rise supervision and warning system Download PDFInfo
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- CN106092373A CN106092373A CN201610746069.8A CN201610746069A CN106092373A CN 106092373 A CN106092373 A CN 106092373A CN 201610746069 A CN201610746069 A CN 201610746069A CN 106092373 A CN106092373 A CN 106092373A
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- central processing
- bus duct
- temperature sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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Abstract
The invention discloses a kind of bus duct temperature rise supervision and warning system, if including central processing unit dry temperature sensor and the sound light alarming circuit that is connected with central processing unit outfan；It is connected with the input of comparison circuit with low pass filter if dry temperature sensor passes sequentially through amplifier, the outfan of comparison circuit is connected with central processing unit, current acquisition module is connected with central processing unit by signal processor, the input of central processing unit is also connected with humiture probe, humiture probe has compensating module with being connected between signal processor, central processing unit forms loop with CPU monitoring circuit, and temperature sensor includes temperature sensor A, temperature sensor B and temperature sensor C.If by installing dry temperature sensor at bus duct, the temperature of bus duct can being monitored in real time, the very first time alert when Temperature numerical or temperature rise speed exceed standard, improve the security reliability of power supply.
Description
Technical field
The present invention relates to electrical distribution field, be specifically related to a kind of bus duct temperature rise supervision and warning system.
Background technology
China, in the process stepping into developed country, will increase substantially for electricity capacity, converting equipment and control equipment
Rated current is also improving constantly.Country starts progressively to strengthen urban distribution network and the transformation of rural power grids, and then promotes electrical network
Power supply quality and supportability, with this simultaneously, converting equipment and the rated current controlling equipment bus, also by 1250A～3150A
Level, rises to 2500A～8000A level.
In the transformation and process of construction of electrical network, China uses the master that square type bus connects as electric equipment the most in a large number
Wanting equipment, but use bare bus bar, its Supply Security is not improved.Therefore, along with electric current safety big to Large Copacity
The urgent needs of transmission, the importance using solid insulation Intelligent Bus system is the most prominent, Intelligent electric on this basis
Net is also the prediction trend of development at present, and power equipment intellectuality is the important foundation stone of intelligent grid, how to realize solid exhausted
The intellectuality of edge bus duct monitoring temperature, standardization, it is simple to real-time Transmission, report temperature of electric transmission line situation or carry out touring inspection
Survey, for fundamentally avoiding the generation of accident, and then ensure the safe and reliable operation of cable, be significant；And solid
The development of insulation Intelligent Bus system is at home at present still in space state.
Summary of the invention
It is an object of the invention to provide a kind of bus duct temperature rise supervision and warning system, make solving existing bus duct temperature rise
The electricity consumption become is dangerous and the problem that can not send alarm in time.
For reaching above-mentioned purpose, one embodiment of the present of invention provides a kind of bus duct temperature rise supervision and warning system,
If the current acquisition module including central processing unit, being connected with central processing unit input and dry temperature sensor and with central authorities
The sound light alarming circuit that processor outfan is connected；If dry temperature sensor passes sequentially through amplifier and low pass filter and compares
The input of circuit is connected, and the outfan of comparison circuit is connected with central processing unit, and current acquisition module passes through signal processor
Being connected with central processing unit, the input of central processing unit is also connected with humiture probe, humiture probe and signal processor
Between connect and have a compensating module, central processing unit forms loop with CPU monitoring circuit, and temperature sensor includes being located at bus duct end
Temperature sensor A, the temperature sensor B being installed on bus duct metal shell on head and be arranged on bus duct insulating part surface
Temperature sensor C；Comparison circuit includes the first operational amplifier LM1 and the second operational amplifier LM2, and described first computing is put
The positive terminal of big device LM1 is connected by the negative pole of the second resistance R2 and the second operational amplifier LM2, described first operational amplifier
The negative pole of LM1 and one end of the first resistance R1 are connected, and the other end of the first resistance R1 is connected with comparing the defeated end of voltage, and described first
The pin 4 of operational amplifier LM1 is connected with power supply, pin 7 ground connection, pin 6 respectively with the positive pole and the 4th of the first stabilivolt D1
One end of resistance R4 is connected, described first stabilivolt D1 and the second stabilivolt D2 series connection；Described second operational amplifier LM2 is just
Pole is connected with one end of the 3rd resistance R3, the 3rd resistance R3 other end with compare voltage input end and be connected, described second computing is put
The pin 4 of big device LM2 connects power supply, pin 7 ground connection, pin 6 respectively with the positive pole of the 3rd stabilivolt D3 and the 5th resistance R5
One end is connected, and the negative pole of described 3rd stabilivolt D3 and the negative pole of the 4th stabilivolt D4 connect, described 4th resistance R4 and the 5th
Resistance R5 all connects a light emitting diode.
Preferably, sound light alarming circuit includes the first audion VT1, and the base stage of the first audion VT1 passes through the 6th resistance
R6 is connected with controller, concatenates the 7th resistance R7 between base stage and the emitter stage of the first audion VT1, the first audion VT1's
Emitter stage is connected with+VCC1, and the colelctor electrode of the first audion VT1 passes through the 8th resistance R8 ground connection, the collection of the first audion VT1
Electrode is connected by the base stage of the 9th resistance R9 and the second audion VT2, the grounded emitter of the second audion VT2, and the two or three
The colelctor electrode of pole pipe VT2 is connected by diode D and+VCC2, diode D and relay K M parallel connection, relay K M normally opened
Contact KM-1 connects with phonetic alarm B.
Preferably, phonetic alarm B and control knob SB series connection, and in parallel with an alarm lamp L.
Preferably ,+VCC1 be 5V ,+VCC2 be 24V.
Preferably, the outfan of central processing unit is connected with monitoring computer and reference current input module.
In sum, the invention have the advantages that
1, the present invention is by being mounted on temperature sensor on the termination of bus duct, metal shell and insulating part surface, can be right
The temperature of bus duct is monitored in real time, the very first time alert when Temperature numerical or temperature rise speed exceed standard, and improves
The security reliability of power supply.
2, comparison circuit is provided with four stabilivolts, and the first stabilivolt D1 and the second stabilivolt D2 series connection, the 3rd voltage stabilizing
Pipe D3 and the 4th stabilivolt D4 series connection, defines bi-directional voltage stabilizing pipe, plays the effect of burning voltage；Meanwhile, in comparison circuit
Each light emitting diode one resistance of series connection, is conducive to protection light emitting diode normally to work.
Accompanying drawing explanation
Fig. 1 is bus duct temperature rise supervision of the present invention and the module map of warning system；
Fig. 2 is the circuit diagram of comparison circuit of the present invention；
Fig. 3 is the circuit diagram of sound light alarming circuit of the present invention.
Detailed description of the invention
The invention provides a kind of bus duct temperature rise supervision and warning system, including central processing unit and central processing unit
If current acquisition module and dry temperature sensor that input is connected and the sound and light alarm being connected with central processing unit outfan
Circuit；It is connected with the input of comparison circuit with low pass filter if dry temperature sensor passes sequentially through amplifier, comparison circuit
Outfan be connected with central processing unit, current acquisition module is connected with central processing unit by signal processor, central process
The input of device is also connected with humiture probe, and humiture probe has compensating module with being connected between signal processor, centre
Reason device forms loop with CPU monitoring circuit, and temperature sensor includes the temperature sensor A being located on bus duct termination, is installed on
Temperature sensor B on bus duct metal shell and be arranged on the temperature sensor C on bus duct insulating part surface；Comparison circuit bag
Including the first operational amplifier LM1 and the second operational amplifier LM2, the positive terminal of described first operational amplifier LM1 passes through second
The negative pole of resistance R2 and the second operational amplifier LM2 is connected, the negative pole of described first operational amplifier LM1 and the first resistance R1's
One end is connected, and the other end of the first resistance R1 is connected with comparing the defeated end of voltage, the pin of described first operational amplifier LM1 4 and
Power supply connects, pin 7 ground connection, and pin 6 is connected with the positive pole of the first stabilivolt D1 and one end of the 4th resistance R4 respectively, and described the
One stabilivolt D1 and the second stabilivolt D2 series connection；The positive pole of described second operational amplifier LM2 and one end phase of the 3rd resistance R3
Even, the 3rd resistance R3 other end with compare voltage input end and be connected, the pin 4 of described second operational amplifier LM2 connects power supply,
Pin 7 ground connection, pin 6 is connected with the positive pole of the 3rd stabilivolt D3 and one end of the 5th resistance R5 respectively, described 3rd stabilivolt
The negative pole of the negative pole of D3 and the 4th stabilivolt D4 connects, and described 4th resistance R4 and the 5th resistance R5 all connects a light-emitting diodes
Pipe.
The optimal enforcement example of the present invention, sound light alarming circuit includes the first audion VT1, the base stage of the first audion VT1
It is connected with controller by the 6th resistance R6, concatenation the 7th resistance R7 between base stage and the emitter stage of the first audion VT1, first
The emitter stage of audion VT1 is connected with+VCC1, the colelctor electrode of the first audion VT1 pass through the 8th resistance R8 ground connection, the one or three
The colelctor electrode of pole pipe VT1 is connected by the base stage of the 9th resistance R9 and the second audion VT2, the emitter stage of the second audion VT2
Ground connection, the colelctor electrode of the second audion VT2 is connected by diode D and+VCC2, and diode D and relay K M are in parallel, relay
The normally opened contact KM-1 of device KM connects with phonetic alarm B；Phonetic alarm B and control knob SB series connection, and report to the police with one
Lamp L is in parallel；+ VCC1 be 5V ,+VCC2 be 24V；The outfan of central processing unit and monitoring computer and reference current input module phase
Even.
First stabilivolt D1, the second stabilivolt D2, the model of the 3rd stabilivolt D3 and the 4th stabilivolt D4 are IN4678,
And first stabilivolt D1 and the second stabilivolt D2 series connection, the 3rd stabilivolt D3 and the 4th stabilivolt D4 series connection, formed bi-directional voltage stabilizing
Pipe plays the effect of voltage stabilizing；Each light emitting diode one resistance of series connection, shields；Central processing unit passes through sound and light alarm
Circuit controls phonetic alarm and sends warning；+ VCC1 be+5V ,+VCC2 be+24V, be so convenient for the connection of circuit.Example
As, the value comparing voltage Vh and V1 is respectively 8V and 15V, when the value of voltage V2 is more than 15V when, puts with the first computing
The comparison circuit of big device LM1 can export high level, so that red light emitting diodes is luminous, meanwhile, transmits signals to central authorities
Processor, when the value of voltage V2 is less than 8V when, the comparison circuit with the second operational amplifier LM2 can export high level,
Thus the light emitting diode of green can be luminous, meanwhile, transmits signals to central processing unit, between magnitude of voltage is at 8V to 12V
When, two comparison circuits all can output low level, therefore light emitting diode is all without lighting.By temperature sensor A, temperature
Degree sensor B and temperature sensor C carries out temperature acquisition, amplifier to termination, metal shell and the insulating part of bus duct respectively
It is amplified processing by the signal that temperature sensor A, temperature sensor B and temperature sensor C gather, then passes through low pass filter
Being filtered, deliver to comparison circuit after then carrying out analog-to-digital conversion, the signal after comparison circuit will convert carries out processing and by place
Reason result contrasts with preset value so that lumination of light emitting diode up and down, meanwhile, is sent by comparing result and processes to central
Device, according to light emitting diode and the comparing result of light yellow, central processing unit judges whether the temperature of bus duct raises, works as temperature
When degree raises, temperature rise signal is sent to sound light alarming circuit and is carried out sound and light alarm and show on monitoring computer by central processing unit,
Alarm lamp L may be used for carrying out light warning, when staff learn bus duct temperature occur difference time, it is possible to press control by
Button SB, alarm quits work；Signal processor transmit after the signal of current acquisition module, compensating module can be processed to
Central processing unit, the signal that humiture probe collects can be analyzed judging and exporting controlling letter accordingly by central processing unit
Number, and on monitoring computer, show the Temperature numerical of bus duct.
Claims (5)
1. a bus duct temperature rise supervision and warning system, it is characterised in that: include central processing unit and central processing unit input
Hold current acquisition module, signal processor and the temp sensor device and the sound being connected with central processing unit outfan being connected
Optical alarm circuit；Described temp sensor device passes sequentially through the input phase of amplifier and low pass filter and comparison circuit
Even, the outfan of described comparison circuit is connected with central processing unit, and described current acquisition module is by signal processor and central authorities
Processor connects, and the input of described central processing unit is also connected with humiture probe, described humiture probe and signal processing
Connecting between device and have compensating module, described central processing unit forms closed-loop path with CPU monitoring circuit, and described temperature sensor fills
Put include the temperature sensor A being located on bus duct termination, the temperature sensor B that is installed on bus duct metal shell and setting
Temperature sensor C on bus duct insulating part surface；Comparison circuit includes the first operational amplifier LM1 and the second operational amplifier
LM2, the positive terminal of described first operational amplifier LM1 is connected by the negative pole of the second resistance R2 and the second operational amplifier LM2,
The negative pole of described first operational amplifier LM1 and one end of the first resistance R1 are connected, the other end of the first resistance R1 with compare electric
Pressing defeated end to be connected, the pin 4 of described first operational amplifier LM1 is connected with power supply, pin 7 ground connection, and pin 6 is steady with first respectively
The positive pole of pressure pipe D1 and one end of the 4th resistance R4 are connected, described first stabilivolt D1 and the second stabilivolt D2 series connection；Described
The positive pole of two operational amplifier LM2 and one end of the 3rd resistance R3 are connected, the 3rd resistance R3 other end with compare voltage input end
Being connected, the pin 4 of described second operational amplifier LM2 connects power supply, pin 7 ground connection, and pin 6 is respectively with the 3rd stabilivolt D3's
One end of positive pole and the 5th resistance R5 is connected, and the negative pole of described 3rd stabilivolt D3 and the negative pole of the 4th stabilivolt D4 connect, institute
State the 4th resistance R4 and the 5th resistance R5 all to connect a light emitting diode.
2. bus duct temperature rise supervision as claimed in claim 1 and warning system, it is characterised in that: described sound light alarming circuit bag
Including the first audion VT1, the base stage of the first audion VT1 is connected with controller by the 6th resistance R6, the first audion VT1's
Concatenating the 7th resistance R7 between base stage and emitter stage, the emitter stage of the first audion VT1 is connected with+VCC1, the first audion
The colelctor electrode of VT1 passes through the 8th resistance R8 ground connection, and the colelctor electrode of the first audion VT1 passes through the 9th resistance R9 and the two or three pole
The base stage of pipe VT2 connects, the grounded emitter of the second audion VT2, the colelctor electrode of the second audion VT2 by diode D with
+ VCC2 connects, and described diode D and relay K M are in parallel, the normally opened contact KM-1 and phonetic alarm B of described relay K M
Series connection.
3. bus duct temperature rise supervision as claimed in claim 2 and warning system, it is characterised in that: described phonetic alarm B with
One control knob SB series connection, and in parallel with an alarm lamp L.
4. bus duct temperature rise supervision as claimed in claim 2 and warning system, it is characterised in that: described+VCC1 is 5V ,+
VCC2 is 24V.
5. bus duct temperature rise supervision as claimed in claim 1 and warning system, it is characterised in that: described central processing unit defeated
Go out end to be connected with monitoring computer and reference current input module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746069.8A CN106092373A (en) | 2016-08-29 | 2016-08-29 | Bus duct temperature rise supervision and warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746069.8A CN106092373A (en) | 2016-08-29 | 2016-08-29 | Bus duct temperature rise supervision and warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106092373A true CN106092373A (en) | 2016-11-09 |
Family
ID=57223815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610746069.8A Pending CN106092373A (en) | 2016-08-29 | 2016-08-29 | Bus duct temperature rise supervision and warning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106092373A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507692A (en) * | 2018-04-08 | 2018-09-07 | 潍坊学院 | The analysis system and method for temperature in Filling Processes of Castings and process of setting |
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|---|---|---|---|---|
| CN102829827A (en) * | 2012-08-30 | 2012-12-19 | 江苏华威线路设备集团有限公司 | Monitoring device for bus duct |
| CN103944266A (en) * | 2014-04-24 | 2014-07-23 | 中山市凯丰电力电子设备有限公司 | Bus online monitoring integrated system |
| CN105241558A (en) * | 2015-10-21 | 2016-01-13 | 上海振大电器成套有限公司 | Monitoring and protection system of bus duct |
| CN105371984A (en) * | 2014-08-28 | 2016-03-02 | 华北电力大学（保定） | Bus temperature monitoring system |
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2016
- 2016-08-29 CN CN201610746069.8A patent/CN106092373A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829827A (en) * | 2012-08-30 | 2012-12-19 | 江苏华威线路设备集团有限公司 | Monitoring device for bus duct |
| CN103944266A (en) * | 2014-04-24 | 2014-07-23 | 中山市凯丰电力电子设备有限公司 | Bus online monitoring integrated system |
| CN105371984A (en) * | 2014-08-28 | 2016-03-02 | 华北电力大学（保定） | Bus temperature monitoring system |
| CN105241558A (en) * | 2015-10-21 | 2016-01-13 | 上海振大电器成套有限公司 | Monitoring and protection system of bus duct |
Non-Patent Citations (1)
| Title |
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| 吴运昌: "《模拟电子技术》", 31 January 2008 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507692A (en) * | 2018-04-08 | 2018-09-07 | 潍坊学院 | The analysis system and method for temperature in Filling Processes of Castings and process of setting |
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Application publication date: 20161109 |