CN102607733A - Electric transmission and transformation equipment contact luminous temperature sensing cap system - Google Patents
Electric transmission and transformation equipment contact luminous temperature sensing cap system Download PDFInfo
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Abstract
The invention discloses an electric transmission and transformation equipment contact luminous temperature sensing cap system. The system comprises a power supply device, an electric transmission and transformation equipment contact luminous temperature sensing cap and a monitoring center; the power supply device is electrically connected with the electric transmission and transformation equipment contact luminous temperature sensing cap; the electric transmission and transformation equipment contact luminous temperature sensing cap comprises a wireless transmitting module, and the wireless transmitting module is communicated with a wireless receiving module of the monitoring center through a network; and the electric transmission and transformation equipment contact luminous temperature sensing cap also comprises a fixed and shielded part and a temperature measuring part, wherein the temperature measuring part is arranged in the fixed and shielded part, and a luminous early warning device is arranged in the temperature measuring part. The invention has the advantage that the system is affected little by the outside because independent circuits are used for monitoring the temperature. Different color lamps are displayed according to different temperature control circuits, and the system can accurately monitor temperature, and has stable performances and an obvious practical effect.
Description
Technical field
The present invention relates to a kind of electric system power transmission and transforming equipment contact temperature-sensitive system, relate in particular to the illuminated temperature-sensitive cap of a kind of power transmission and transforming equipment contact system.
Background technology
Along with improving constantly of Chinese economic development and people's living standard, the power load amount that electric company supplies with also increases rapidly, and how this can accomplish that for electric company safe and reliable power supply has higher requirement.
In the electrical network of actual motion, power transmission and transforming equipment is connected with countless circuits each other and connects contact; Along with the increase of power load, circuit connects the contact heating and counts more and morely, and amounts to heating and counts and be the gesture of rising year by year, and is overheated by contact and line tripping accident that cause also is the gesture of rising year by year.
How to strengthen thermometric work, prevent the security incident that the power transmission and transforming equipment contact causes because of excess temperature, ensure that the safe and reliable operation of power transformation, electric line becomes the most important thing of electric company's work schedule the power transmission and transforming equipment contact.
With certain electric company local 10kV outlet cable is example: 87 of 10kV circuit statistics, circuit connects contact and amounts to 672 places.
2008-2010 10kV outlet cable line connects contact heating situation statistical form
Table 1
Can find out that by statistical form 2008-2010 10kV contact heating situation is in rising trend year by year
2008-2010 power transmission and transforming equipment breaking number of times statistical form
Table 2
Can find out power transmission and transforming equipment under the 2008-2010 company by above chart, except that excess temperature cause circuit connect contact damage cause the tripping operation accident in rising trend year by year, other breaking number of times is on a declining curve just year by year.
Strengthen in State Grid Corporation of China's " charged inspection specifications of power equipment " that the thermometric work of power transmission and transforming equipment is had clear and definite requirement.At present, technological means commonly used is to connect at circuit temperature indicating wax disk(-sc), temperature-sensitive cap are set on the contact, or adopt mode such as far infrared temperature measurer collecting temperature, deficiency below these modes exist in practice:
1, along with the increase of power load, newly-increased circuit is more and more, and the far infrared temperature measurer not only costs an arm and a leg, and prior art is undermanned, and the outfit of far infrared temperature measurer thermometric is not in place in addition, with directly causing thermometric to make an inspection tour situation not in place.
2, the method for monitoring heat generating spot is outmoded, also continues to use old-fashioned temperature indicating wax disk(-sc) in substation bus bar row connecting portion, the 10kV switch cubicle, and at present a lot of switch cubicle rear view windows are too small, have the problem of observing thermometric inconvenience.
3, the temperature-sensitive screw cap that uses in the production work at present is two kinds of temperature-sensitive caps of WGLM-14-90, WGLM-12-90 that certain company produces, and the weak point that the temperature-sensitive cap exists is:
(1) its principle of work of temperature-sensitive cap is the magnetite adhesive, under the interim overload excess temperature situation, in case can't recover automatically after the tripping, is prone to cause erroneous judgement disconnected, and circuit palpus power failure manual reset has a negative impact to company's electricity sales amount.
(2) redness of the long-term temperature-sensitive cap that uses indicates and can progressively fade under the factors such as sunshine in erosion by wind and rain, and identification characteristics can't normally show; If be installed in such as on the high-tension line iron tower; The staff is only with naked-eye observation, and difficult the resolution is unfavorable for the timely eliminating of fault.
(3) scope of application is little, only is applicable to electric line.
Summary of the invention
The technical matters that the present invention will solve is for too outmoded to the thermometric mode of existing power transmission and transforming equipment; Not directly perceived; The deficiency that can't long-rangely know behind the power transmission and transforming equipment contact overtemperature; The illuminated temperature-sensitive cap of a kind of power transmission and transforming equipment contact system is provided, and it has reasonable in design, and monitoring result is advantage intuitively.
To achieve these goals, the present invention adopts following technical scheme:
The illuminated temperature-sensitive cap of a kind of power transmission and transforming equipment contact system; It comprises supply unit; The illuminated temperature-sensitive cap of power transmission and transforming equipment contact, Surveillance center; Said supply unit is electrically connected with the illuminated temperature-sensitive cap of power transmission and transforming equipment contact, and the illuminated temperature-sensitive cap of said power transmission and transforming equipment contact comprises wireless transmitter module, and said wireless transmitter module is through network and Surveillance center's wireless receiving module communication; The illuminated temperature-sensitive cap of said power transmission and transforming equipment contact also comprises fixing and masked segment and temperature measurement fraction, and said temperature measurement fraction is arranged in fixing and the masked segment, is provided with luminous prior-warning device in the temperature measurement fraction.
Saidly fixing comprise fastening end and temperature-sensitive cap screening can, be milled with flatly on the sidewall of said fastening end that the lower surface is provided with the internal thread counterbore, the fastening bolt immovable fitting of internal thread counterbore and power transmission and transforming equipment contact with masked segment; Upper surface, fastening end and temperature-sensitive cap screening can bottom connect as one, and said temperature-sensitive cap screening can is stainless steel casing or aluminum alloy casing or spun glass shell; On the sidewall of said stainless steel casing or aluminum alloy casing or spun glass shell, be provided with at least one hole, said luminous prior-warning device cooperates installation with the hole.
Said supply unit is a high pressure self-supplying power source mode, is included in the high pressure self-supplying power source transformer iron core coil of induction power taking on the power equipment; Said high pressure self-supplying power source mutual inductor is open type forceps type structure CT or bolted bus row formula open C T; Said current transformer CT primary side carries out the EM coupling induction through open type forceps type structure or bolted bus row formula with the power equipment circuit and is connected; Current transformer CT secondary side is connected with flat ripple reactance; Flat ripple reactance is connected with rectifier bridge; Rectification bridge output end is connected with electric capacity of voltage regulation, voltage protection circuit, LC filtering circuit and DC-DC module, current-limiting resistance successively, and current-limiting resistance is connected with the illuminated temperature-sensitive cap of power transmission and transforming equipment contact.
Said temperature measurement fraction comprises the thermometric sensing circuit; Processor circuit and luminous prior-warning device; Said thermometric sensing circuit, processor circuit and luminous prior-warning device are electrically connected successively; Said thermometric sensing circuit comprises temperature probe, and said temperature probe is thermistor or thermojunction type temperature controller or semiconductor integrated temperature sensor.
Said processor circuit comprises single-chip microcomputer, and said single-chip microcomputer is connected with wireless transmitter module; Said single-chip microcomputer also is connected with thermistor or thermojunction type temperature controller or semiconductor integrated temperature sensor and luminous prior-warning device respectively.
Said processor circuit comprises comparer; Said comparer is two; Two comparers with same set of or two independently thermistor or thermojunction type temperature controller or semiconductor integrated temperature sensor are connected; Two comparator output terminals are connected with luminous prior-warning device with wireless transmitter module, and said comparer is a MAX965 supply voltage comparer.
Comprise LED light in the said luminous prior-warning device, said LED light is super bright dual-colored LED pilot lamp or common LED pilot lamp, said double-colored be green and red; Said LED light is connected with processor circuit and is fixed in the hole that temperature-sensitive cap screening can sidewall is provided with.
Be provided with heat-conducting glue between said temperature probe and fixing and the masked segment.
Said supply unit adopts dry battery type power supply or solar cell.
Said network comprises the GSM/GPRS/CDAM/3G network.
Various piece has multiple consideration in the one-piece construction of the present invention:
One, supply unit
Adopt the dry battery type power mode or utilize CT on power equipment, to respond to the power mode or the solar cell formula power mode of power taking
Three kinds of power supply modes to mentioning compare analysis, and are as shown in table 3:
Table 3
Utilize CT on power equipment, to respond to the power mode of power taking, can realize now, the voltage of generation and power meet the job requirement of illuminated temperature-sensitive cap of our research fully, and voltage is stable, and does not need the backup battery group, and volume is less.Can set up induction by current power taking theoretical model.
Working power of the present invention is employed in the power mode of induction power taking on the power equipment; Specifically be to adopt the current transformer (power supply CT) that is of coupled connections with power equipment, this current transformer adopts corresponding with it magnetic core aperture according to the difference in bus line footpath; Be sleeved near the bus of power transmission and transforming equipment contact; Constitute punching,, satisfy request for utilization for illuminated temperature-sensitive cap provides working power.
Because energy is produced by the electromagnetic induction of the bus current in high-pressure side through power supply CT fully, so can be referred to as the high pressure self-supplying power source.Self-supplying power source can guarantee reliable insulation over the ground when giving the reliable energy supply of high-pressure side electronic installation.This device long-time running is reliable and stable, technology maturation, and variation has very strong adaptive faculty to the transmission line of electricity electric current, possesses short circuit and dash current self-protection, can be all kinds of transmission line of electricity on-line monitorings and watch-dog reliable power supply is provided.The performance characteristics induction energy fetching, high efficient and reliable, Maintenance free; The totally enclosed type design adapts to rugged surroundings, and easy for installation, wiring is simple; Stable, can under the situation of circuit electrorheologicalization, keep stable output; Output voltage stabilization, ripple is little; Output power can reach more than the 200W; Can be under greater than the 1000A electric current continuous firing, can be greater than 3000A electric current steady operation of following short time; Be installed on 6kV to the 500kV free voltage grade transmission line of electricity.The illuminated temperature-sensitive cap of this unit feeding uses as power supply, effectively solves the problem that power supply can not permanently effective supply, has also increased the usable range of the different electric pressures of illuminated temperature-sensitive cap simultaneously.
The method of induction power taking; According to the theory in the engineering electromagnetic field, the method for induction power taking has a lot, and modal method is utilized the inductive coil power taking exactly; It is the principle of CT; The electric field that the electric current that cycle changes can change in the generation cycle, the magnetic field that the electric field that the cycle changes can change in the generation cycle, vice versa.
The situation of the bus current in high-pressure side is very complicated, and electric current is minimum possibly to have only several peaces, and transient current possibly reach tens of kilo-amperes during failed because.The difficult point of this power supply design mainly is: when bus current is near unloaded little current status, guarantee the supply of power supply as far as possible; Be in the current state a lot of and work as bus current, during like the short trouble state, give power supply enough protections, and can guarantee the power supply supply above rated current.Therefore, design effort mainly concentrates on an interior on a large scale electric current that changes is converted into a constant pressure source.
In order to limit the voltage and current output of power supply CT under current state, can adopt flat ripple resistance limits mode, it utilizes the saturation characteristic of power supply CT, and to pacify to the current conversion of tens kilo-amperes be the voltage energy of 3～60V several on the bus.
Power supply CT directly induces alternating voltage from primary current; After flat ripple reactance, full-wave rectification conversion; On electric capacity of voltage regulation C, obtain pressing Uc than galvanic current; Again through voltage protection circuit, become the power supply of 3.3V behind LC filtering circuit and conversion of DC-DC module and the current-limiting resistance, electronic circuit use in the supply equipment.Under CT degree of depth state of saturation, induced voltage and induction current all rise significantly, after the position between CT and the rectifier bridge adds flat ripple reactance L, can share the high voltage of most CT inductions, and the electric current output of restriction CT.Said voltage protection circuit adopts the voltage comparator mode, pre-sets the upper voltage limit that satisfies reliably working, as voltage threshold; Comparer is compared with threshold voltage value to the actual acquisition magnitude of voltage; When the actual acquisition magnitude of voltage surpassed threshold voltage value, comparer output counter-rotating drove and is connected large power triode or the metal-oxide-semiconductor conducting on the positive and negative polarities; Carry out energy and release, to alleviate the impact of the suffered change in voltage of subsequent conditioning circuit parts.The patent No. 201120157362.3 relates to the DC power supply apparatus that a kind of cable that is in operation obtains electric energy this is introduced to some extent; Also can adopt control circuits such as stabilivolt in addition in the circuit, the employing controllable silicon is realized overvoltage protection and energy leadage circuit as the mode of the main circuit of releasing.Perhaps adopt single-chip microcomputer that the voltage of operating circuit is sampled, compared, drive energy leadage circuit thereafter, the tracking of satisfying the circuit voltage fluctuation adapts to, and when especially voltage skyrockets, circuit energy is released.
Through contrast, the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system need be installed in the field of indoor and circumstance complication, requires stronger adaptive capacity to environment and stronger flying power, so select to utilize CT on power equipment, to respond to the power mode of power taking.
Two, temperature measurement fraction
Comprise and be divided into thermometric sensing circuit, processor circuit and luminous prior-warning device:
1, thermometric sensing circuit
The main temperature control element such as thermojunction type, thermistor, semiconductor integrated temperature sensor of using of power transmission and transforming equipment contact heating at present.
Thermometric sensing circuit selection of components:
I), thermopair
Characteristics: temperature measuring area is wide, generally in-180 ℃～2800 ℃ temperature range, uses, and higher precision is especially arranged in high temperature range, measures temperature error even also exist between the shortcoming same model thermopair, and price is more expensive, and the temperature-sensitive cap uses inconvenience in batches.
II), thermistor
Characteristics: temperature-measuring range has higher sensitivity at-50 ℃～+ 300 ℃, and promptly resistance has significant variation with temperature variation, characteristics such as have that volume is little, fast, low in energy consumption, the long service life of response, price are low.
III), semiconductor integrated temperature sensor
Characteristics: temperature-measuring range is at-55 ℃～+ 150 ℃, and temperature measuring area is smaller, and temperature measurement accuracy is high, and volume is big slightly, costs an arm and a leg.
Thus, the thermistor temperature detecting scope is fit to, and precision reaches requirement, and volume is little, response is fast, low in energy consumption, long service life, price are low, preferably selects the thermal sensing element that thermistor is the temperature-sensitive cap.
2, the selection of processor circuit:
I), single-chip microcomputer
Satisfy field control, cost is lower, innernal CPU, internal memory, parallel bus.But need the technician to have corresponding development ability.
II), supply voltage comparer
Be used for automatic control circuit, voltage detection circuit.Briefly, the voltage source voltage comparator is an integrated circuit, and two aanalogvoltages are compared its height, and according to judging that wherein which voltage is high or low, exports corresponding upset, for subsequent conditioning circuit provides control signal.Have that precision height, volume are little, low in energy consumption, advantage such as long service life, price are low.
The function that the supply voltage comparer possesses more meets the selection of temperature-sensitive cap processing module.Temperature measurement fraction is formed by the system design of supply voltage comparer, forms that switch speed is fast, time delay is little, has low current, little encapsulation, advantage that turn-off function is strong.
3, the selection of luminous prior-warning device
I), common LED pilot lamp
Single can not when temperature is too high, making with a monochromatic burner gives warning in advance and the indication of the two states of overtemperature alarm.
II), super bright dual-colored LED pilot lamp
WV is very low; Working current is very little; Shock resistance and anti-seismic performance are good, and reliability is high; Life-span is long; The electric current power of passing through through modulation is the power of modulated luminescence easily.Can be when 70 ℃ of power transmission and transforming equipment contact excess temperatures, make and giving warning in advance, and low in energy consumption, long service life, advantage such as cheap.So light-emitting component that the super bright dual-colored LED pilot lamp of selection is the temperature-sensitive cap.
Super bright color-changed LED pilot lamp uses low-tension supply; Supply voltage is controlled at 3.3V through being connected in series suitable current-limiting resistance; Up-down control with voltage shows different colored lights, and the effect of generation can reach 50 lumens/watt, and stability is high; 100,000 hours light decays are initial 50%, and the response time is a nanosecond.
Preferred version: thermistor is that thermal sensing element, the supply voltage comparer of temperature-sensitive cap is that processing module, super bright dual-colored LED pilot lamp LED light are the light-emitting component of temperature-sensitive cap.In addition, for increasing the remote monitoring ability, wireless transmitter module is set in the device, behind the contact generation excess temperature, the contact temperature state with monitoring offers Surveillance center through network.
Three, fixing and masked segment
Fixing and masked segment will reach following technical indicator:
(1), shielding case structure
A, can adapt to various environment.B, stainless steel casing are according to good shielding action is arranged.C, light weight, intensity is high, good seal.
(2), the fixed form of high pressure self-supplying power source
A, high pressure self-supplying power source can be firmly secured on the lead.The model of b, the various leads commonly used of adaptation.
C, assurance do not produce damage to lead.D, lead resonance is not exerted an influence.
(3), the fixed form of temperature-sensitive cap
A, be installed in b on the fastening bolt of connecting portion of power transmission and transforming equipment and circuit, adapt to the model of various bolts commonly used.
1, stiff end
1), directly cover is pressed on the fastening bolt of power transmission and transforming equipment and circuit connection contact, also can prevent the loosening and corrosion of fastening bolt.
2) Electric Field Distribution that, be crimped on each connecting portion through conducting strip, changes easily around the lead causes corona.
2, masked segment
1), the betal can shielding construction, it is good, sturdy and durable to have a shield effectiveness, seal good, so adopt stainless steel or Al-alloy metal housing shroud.
2), use and to be prone to agingly under the spun glass screening can mode temperatures involved, cause line fault easily.
3, CT fixed part
1), when on power transmission and transformation line, using,, designs the pincerlike fixation of C T of satisfactory open type, fixing reliable, installation and removal convenience according to wire type.
2), when on power transmission and transforming equipment, using, can design satisfactory bolted bus row formula open C T, for illuminated temperature-sensitive cap power taking use according to the field condition needs.
Selected scheme: the temperature-sensitive cap adopts bolt connected mode, betal can shielding mode, adopts the pincerlike fixation of C T of open type.
Comprehensive above the analysis, optimized technical scheme is:
1, utilize CT on power equipment, to respond to the power taking technology, for the temperature-sensitive cap provides reliable source of power; Utilizing CT on power equipment, to respond to the power taking technology is called again: the high pressure self-supplying power source.
2, adopt the temperature measurement fraction of thermistor, supply voltage comparer, super bright dual-colored LED pilot lamp fabrication of electronic components temperature-sensitive cap; Make the temperature-sensitive cap possess the luminous and luminous indication of reporting to the police of early warning; Through wireless launcher the power transmission and transforming equipment contact temperature information of temperature-sensitive cap monitoring is carried out communication through network and Surveillance center, thus make the maintainer more promptly and accurately know the power transmission and transforming equipment contact temperature.Facilitate to the maintainer.
3, the temperature-sensitive cap is installed on the fastening bolt of power transmission and transforming equipment contact, adopts the betal can shielding construction, and according to wire characteristic and model scope, uses open type forceps type structure CT.Metal shell has higher electromagnetic screen ability simultaneously.
Temperature measurement fraction can be realized sound and light alarm by built-in alarm, built-in wireless transmitter module, and realization carries out the temperature of detected power transmission and transforming equipment contact wireless and monitoring center carries out communication.Do to change adopt wired mode such as power line carrier to carry out communication slightly, effectively guarantee maintenance in time, efficient.
Principle of work of the present invention:
The illuminated temperature-sensitive cap of power transmission and transforming equipment contact system is through thermistor, and thermistor is connected with the supply voltage comparator input terminal, and the supply voltage comparator output terminal connects luminous prior-warning device; The supply voltage comparer is two, the luminous indication supply voltage of the corresponding early warning of difference comparer, the luminous indication supply voltage comparer of reporting to the police; And two supply voltage comparers are provided with supply voltage comparator input terminal early warning temperature threshold and alarm threshold value respectively; When temperature raise, the thermistor resistance reduced, and the luminous indication supply voltage of early warning comparator input terminal magnitude of voltage changes thereupon; When temperature reaches the early warning temperature threshold; Supply voltage comparer output level changes, the conducting of green LED indicator light circuit, shown in green early-warning lamp; Reach alarm threshold value and when above, the thermistor resistance continues to diminish when temperature continue to raise, green early-warning lamp is closed, and the red alarm lamp is bright.
Otherwise the power transmission and transforming equipment contact temperature that thermistor detects descends, and resistance raises, and reduces to alarm threshold value when following when temperature, and the red alarm lamp is closed.When detected temperatures reached early warning temperature threshold and alarm threshold value interval, green early-warning lamp lighted once more.Temperature drops to the early warning temperature threshold when following, and green early-warning lamp is closed.Thereby, realize temperature monitoring to power transmission and transforming equipment and circuit connection contact.In conjunction with necessary sound and light alarm and video monitoring and communication module, can realize sound and light alarm and observed temperature has been reached early warning or alarm condition and Surveillance center carrying out communication, realize remote monitoring power transmission and transforming equipment contact situation.
Beneficial effect of the present invention:
1, to power equipment connecting portion detection excess temperature situation promptly and accurately; Excess temperature continuous effective monitoring rate is reached 100%; The line tripping accident that could effectively prevent device damage that excess temperature causes and burning apparatus to cause; Dwindle degree of damage and the scope of excess temperature to equipment, the accident prevention that excess temperature is caused plays positive key effect.
Adopt the independent circuits monitor temperature, receive ectocine little.According to the different temperatures control circuit, show different colored lights, monitor temperature is accurately, stable performance, practical function be obvious.
2, substation transformer crimping copper bar connecting portion, the female couplet of 10kV are used monitor temperature in copper bar connecting portion, the 10kV switch cubicle, and be convenient more, the heating situation of judgement outlet cable promptly and accurately.
3, illuminated temperature-sensitive cap all is convenient to each connecting portion heat generating spot is observed night on daytime.
4, long service life can reuse for a long time, and provisional excess temperature can recover without line outage automatically.
The benefit that the present invention obtains
1, the safety benefit that brings of the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system:
(1) illuminated temperature-sensitive cap can effectively prevent to reduce the tripping operation number of times that power transmission and transforming equipment causes because of the heating initiating failure because of the heating problem that circuit overload generates heat and hold-down bolt is loosening and the harmonic current increase causes.
(2) early warning that can make according to the green early-warning lamp of illuminated temperature-sensitive cap is reasonably formulated the maintenance and the plan that has a power failure in advance to the heating circuit.Avoid the peak times of power consumption power off time, effectively reduce the equipment power off time.
(3) in time make repairing for the circuit of illuminated temperature-sensitive cap red alarm, effectively avoid because of the infringement of long-term heating to power transmission and transforming equipment and circuit initiation.
(4) reduced cost of equipment maintenance, improved power supply reliability, increased company social benefit, optimized corporate image.
2, economic benefit
Through reducing the line fault number of times that long-term heating causes, reduced the power network line maintenance cost, reduced the line tripping power off time:
Because the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system accomplished to give warning in advance, can effectively avoid the energy loss and the economic loss that cause because of power failure tripping operation accident that heating causes, guaranteed electric power netting safe running.
Along with the progress of society, power load rapid growth, and carrying out of power transmission and transformation equipment state overhauling work have under the new situation proposed new higher requirement to safe operation, the maintenance of power transmission and transforming equipment, therefore just need constantly carry out technical renovation.Through the 3G wireless network transmissions, realize on-line monitoring to power transmission and transforming equipment, improve power supply reliability, guarantee the safe operation of electrical network.
Description of drawings
Fig. 1 is a high pressure self-supplying power source device circuit synoptic diagram,
Fig. 2 is the illuminated temperature-sensitive cap of a power transmission and transforming equipment contact circuit system structural representation,
Fig. 3 is induction power taking part electromagnetic induction principle figure,
Fig. 4 is the illuminated temperature-sensitive cap of a power transmission and transforming equipment contact system schematic,
Fig. 5 is that the employing single-chip microcomputer is a processor circuit temperature-sensitive cap circuit system structural representation.
Wherein, 101. flat ripple reactance, 102 full-wave rectification bridges, 103. electric capacity of voltage regulation, 104. voltage protection circuits; 105.LC filtering circuit, 106.DC-DC module, 107. current-limiting resistances, 201. high pressure self-supplying power source transformer iron core coils, 202. supply units; 204. line of electric force, 301. magnetic induction lines, 302. electric field lines, the illuminated temperature-sensitive cap of 401. power transmission and transforming equipment contacts, 402. thermistors; 403. comparer I, 404. comparer II, 405.LED pilot lamp, 406 wireless transmitter modules, 407. wireless receiving modules; 408. Surveillance center, 501. temperature-sensitive cap screening cans, 502. fastening ends, 503. internal thread counterbores, 601. single-chip microcomputers.
Embodiment
Below in conjunction with accompanying drawing and embodiment invention is described further.
Embodiment 1: among Fig. 1, represented high pressure self-supplying power source device circuit synoptic diagram.
CT directly induces alternating voltage from primary current; After flat ripple reactance 101 and adopting full-wave rectification bridge 102 conversions; On electric capacity of voltage regulation 103, obtain pressing than galvanic current; Energize holding circuit 104, filtering circuit 105 and DC-DC module 106 and current-limiting resistance 107 are transformed into the power supply of 3.3V again, supply electronic circuit use in the illuminated temperature-sensitive cap 401 of power transmission and transforming equipment contact.Under CT degree of depth state of saturation, induced voltage and induction current all rise significantly, after the position between CT and the full-wave rectification bridge 102 adds flat ripple reactance, can share the high voltage of most CT inductions, and the electric current output of restriction CT.Voltage protection circuit carries out the protectiveness energy to superpotential and releases.Ensure subsequent conditioning circuit safety.
Among Fig. 2; The illuminated temperature-sensitive cap of a kind of power transmission and transforming equipment contact system; It comprises supply unit 202, the illuminated temperature-sensitive cap of power transmission and transforming equipment contact 401, Surveillance center 408, and said supply unit 202 is electrically connected with the illuminated temperature-sensitive cap 401 of power transmission and transforming equipment contact; The illuminated temperature-sensitive cap 401 of said power transmission and transforming equipment contact comprises wireless transmitter module 406, and said wireless transmitter module 406 is through network and 407 communications of Surveillance center's wireless receiving module; The illuminated temperature-sensitive cap 401 of said power transmission and transforming equipment contact also comprises fixing and masked segment and temperature measurement fraction, and said temperature measurement fraction is arranged in fixing and the masked segment, is provided with luminous prior-warning device in the temperature measurement fraction.
Saidly fixing comprise fastening end 502 and temperature-sensitive cap screening can 501, be milled with flatly on 502 sidewalls of said fastening end that the lower surface is provided with the internal thread counterbore, the fastening bolt immovable fitting of internal thread counterbore 503 and power transmission and transforming equipment contact with masked segment; 503 upper surfaces, fastening end and temperature-sensitive cap screening can 501 bottoms connect as one, and said temperature-sensitive cap screening can 501 is stainless steel casing or aluminum alloy casing or spun glass shell; The all directions direction is respectively equipped with a hole on the sidewall of said stainless steel casing or aluminum alloy casing or spun glass shell, and said luminous prior-warning device cooperates installation with the hole.
Said supply unit is a high pressure self-supplying power source mode, is included in the high pressure self-supplying power source transformer iron core coil 201 of induction power taking on the power equipment; Said high pressure self-supplying power source mutual inductor is open type forceps type structure CT or bolted bus row formula open C T; Said current transformer CT primary side carries out the EM coupling induction through open type forceps type structure or bolted bus row formula with the power equipment circuit and is connected; Current transformer CT secondary side is connected with flat ripple reactance 101; Flat ripple reactance 101 is connected with full-wave rectification bridge 102; Full-wave rectification bridge 102 output terminals are connected with electric capacity of voltage regulation 103, voltage protection circuit 104, LC filtering circuit 105 and DC-DC module 106, current-limiting resistance 107 successively, and current-limiting resistance 107 is connected with the illuminated temperature-sensitive cap 401 of power transmission and transforming equipment contact.
Said temperature measurement fraction comprises the thermometric sensing circuit; Processor circuit and luminous prior-warning device; Said thermometric sensing circuit, processor circuit and luminous prior-warning device are electrically connected successively; Said thermometric sensing circuit comprises temperature probe, and said temperature probe is thermistor 402 or thermojunction type temperature controller or semiconductor integrated temperature sensor.
Said processor circuit comprises comparer, and said comparer is two, is respectively comparer I 403, comparer II 404; Two comparers are divided the work, and accomplish respectively when temperature to reach between 70 ℃～90 ℃, and comparer I403 output level changes, green LED pilot lamp 405 circuit turn-ons, shown in green early-warning lamp; When temperature continued to raise above 90 ℃, thermistor 402 resistances continued to diminish, and green early-warning lamp is closed, comparer II 404 outputs, and the red alarm lamp is bright.Two comparers and same set of thermistor 402 or thermojunction type temperature controller or semiconductor integrated temperature sensor are connected; Two comparator output terminals are connected with luminous prior-warning device series system with wireless transmitter module, and said comparer is a MAX965 supply voltage comparer.The wireless transmitter module 406 that utilization is provided with passes through network with green alert status; The red alarm state is transmitted into Surveillance center 408; Surveillance center's wireless receiving module 407 receives; The staff takes necessary workflow according to the contact temperature situation of knowing, the power transmission and transforming equipment contact that overtemperature takes place is in time handled.
Comprise LED light 405 in the said luminous prior-warning device, said LED light 405 is super bright dual-colored LED pilot lamp, said double-colored be green and red; Said super bright dual-colored LED pilot lamp is connected with processor circuit and is fixed in the hole that temperature-sensitive cap screening can sidewall is provided with.
Be provided with heat-conducting glue between said temperature probe and fixing and the masked segment.
Said supply unit adopts dry battery type power supply or solar cell.
Said network comprises the GSM/GPRS/CDAM/3G network.
Fig. 3 representes to utilize the inductive coil power taking, around line of electric force 204, has electric field line 302, under the electric field of periodicity alternation, produces magnetic induction line 301; The high pressure self-supplying power source transformer iron core coil 201 that is positioned at magnetic induction line 301 zones of action produces induced potential with the magnetic induction line of sensing 301, produces induced current through the closed-loop path; It is the principle of CT; The electric field that the electric current that cycle changes can change in the generation cycle, the magnetic field that the electric field that the cycle changes can change in the generation cycle, vice versa.
The illuminated temperature-sensitive cap of a kind of power transmission and transforming equipment contact of Fig. 4 system; Fixing and masked segment comprises fastening end 502 and temperature-sensitive cap screening can 501; Be milled with flat on 502 sidewalls of said fastening end; The lower surface is provided with internal thread counterbore 503, the fastening bolt immovable fitting of heavy 503 holes of internal thread and power transmission and transforming equipment contact; Upper surface, fastening end and temperature-sensitive cap screening can bottom connect as one, and said temperature-sensitive cap screening can 501 is stainless steel casing or aluminum alloy casing or spun glass shell; On the sidewall of said stainless steel casing or aluminum alloy casing or spun glass shell, be provided with at least one hole;
Supply unit is a high pressure self-supplying power source mode, is included in the current transformer CT of induction power taking on the power equipment; Said current transformer CT is open type forceps type structure CT or bolted bus row formula open C T, and said current transformer CT primary side carries out the EM coupling induction through open type forceps type structure or bolted bus row formula with the power equipment circuit and is connected,
(temperature-measuring range is at-50 ℃～+ 300 ℃ through thermistor 402 in the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system; Has higher sensitivity); Thermistor 402 is connected with the supply voltage comparator input terminal; The supply voltage comparator output terminal connects light early warning part, and its resistance value has significant variation with temperature variation.When temperature raises; Thermistor 402 resistances reduce, and influence supply voltage comparator input terminal magnitude of voltage thus, and it is 70 ℃ that the early warning temperature threshold is set; When temperature reaches between 70 ℃～90 ℃; Supply voltage comparer output level changes, green LED pilot lamp 405 circuit turn-ons, shown in green early-warning lamp; Utilize the wireless transmitter module that is provided with that green alert status is transmitted into Surveillance center simultaneously; When temperature continued to raise above 90 ℃, thermistor 402 resistances continued to diminish, through the interaction of comparer to input end; Green early-warning lamp is closed, and the red alarm lamp is bright.The most succinct is adopts to be mutually independent between the comparer and works alone, and reaches to utilize the photoelectricity indicating mode that the power transmission and transforming equipment contact temperature is carried out purpose of indicating to get final product.
Utilize the wireless transmitter module that is provided with that the red alarm state is transmitted into Surveillance center simultaneously, otherwise the power transmission and transforming equipment contact temperature that thermistor 402 detects descends, resistance raises, and when temperature was reduced to below 90 ℃, the red alarm lamp was closed.Detected temperatures reaches 70 ℃～90 ℃ when interval, and green early-warning lamp lights once more.When temperature dropped to below 70 ℃, green early-warning lamp was closed.Thereby, realize temperature monitoring to power transmission and transforming equipment and circuit connection contact.The staff takes necessary workflow according to the contact temperature situation of knowing, the power transmission and transforming equipment contact that overtemperature takes place is in time handled.
Temperature measurement fraction is formed by the system design of MAX965 supply voltage comparer, and MAX965 supply voltage comparer is the voltage source voltage comparator of specialty, and switch speed is fast, time delay is little, has low current, little encapsulation, turn-off function.Total system is made up of MAX965 supply voltage comparer and thermistor 402 temperature controllers and other auxiliary electron element.
Make the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system blank in kind, debugging test.The analog operation state makes an experiment to the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system:
1, during excess temperature, the green early-warning lamp of illuminated temperature-sensitive cap is bright, the red alarm lamp is bright through test;
2, during excess temperature, green early-warning lamp, red alarm lamp brightness radiation radius are 50 meters;
3, high pressure self-supplying power source device can be installed easily, dismantle, and the device bayonet socket can fixedly secure on power transmission and transforming equipment and circuit; WV 500kV and following, working current 5～1800A;
4, the excess temperature early warning range is set in 70 ℃～90 ℃ intervals, and the overtemperature alarm scope is set in more than 90 ℃, and equipment operation is stable during 140 ℃ of excess temperatures.
5, utilize the wireless transmitter module be provided with green alert status, the red alarm state is transmitted into Surveillance center, and the staff takes necessary workflow according to the contact temperature situation of knowing, the power transmission and transforming equipment contact that overtemperature takes place is in time handled.
The effect inspection
(1) target inspection
(1) the analog operation state carries out the record of withstand voltage test and test figure.
Simulated field carries out the AC voltage withstand test that 10kV, 35kV, 110kV, four electric pressures of 220kV add 35kV, 78kV DC break down voltage, 149kV, 246kV respectively to 10 the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system blanks; Device housings tool and high pressure self-supplying power source device have higher electromagnetic screen ability, guarantee reliable insulation over the ground.
Withstand voltage test qualification rate statistical form
(2) the analog operation state carries out the record of luminous, heat run and test figure.
Simulation excess temperature situation is carried out luminous, heat run detection to 10 the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system blanks, tests the luminosity factor and the temperature triggered of illuminated temperature-sensitive cap and closes rate.
The luminosity factor statistical form of the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system
Through the test of temperature triggered qualification rate, find triggering temperature 0.5 degree on the low side of the illuminated temperature-sensitive cap of 2#.Look into its reason, it is disassembled to open find that it is qualified that the thermometric of temperature measurement fraction triggers when carrying out the temperature measurement fraction heat run more separately, in the heat-conducting glue bubble is arranged when observing masked segment and seeing assembling, cause assembling the back thermometric and trigger inaccurate.Detect through heat run, we recognize the importance of assembling process.It is qualified to re-assembly back thermometric triggering, makes the temperature triggered qualification rate of illuminated temperature-sensitive cap reach 100%.
(3) out-put supply of high pressure self-supplying power source device part under different electric pressures is stable; Exporting enough power can supply the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system to use; Long-term work is at low hear rate state; The system stability output power is 1W during system design index primary current 5～600A, and insulation over the ground is reliable.
High pressure self-supplying power source device power taking effect table
From above test, find out; Ten the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system test conclusions are qualified; Possessed under various external environments, effectively the thermometric rate has reached 100%, and thermometric temperature rate of accuracy reached is to 100%; Different electric pressure relevance factors reach 100%, and supply unit can be realized uninterrupted stable supply of electrical energy.Reached the design object of expection.
In sum, illuminated temperature-sensitive cap each item technical indicator satisfies design object, the success of the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system development.
(2) obtain benefit
1, the safety benefit that brings of the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system:
(1) illuminated temperature-sensitive cap can effectively prevent to reduce the tripping operation number of times that power transmission and transforming equipment causes because of the heating initiating failure because of circuit overload heating and the loosening heating problem that causes of hold-down bolt.
(2) early warning that can make according to the green early-warning lamp of illuminated temperature-sensitive cap is reasonably formulated the maintenance and the plan that has a power failure in advance to the heating circuit.Avoid the peak times of power consumption power off time, effectively reduce the equipment power off time.
(3) in time make repairing for the circuit of illuminated temperature-sensitive cap red alarm, effectively avoid because of the infringement of long-term heating to power transmission and transforming equipment and circuit initiation.
(4) reduced cost of equipment maintenance, improved power supply reliability, increased company social benefit, optimized corporate image.
2, economic benefit
Through reducing the line fault number of times that long-term heating causes, reduced the power network line maintenance cost, reduced the line tripping power off time:
To cause that because of long-term heating accident the power off time that line tripping causes calculated in 6 hours
Q＝UITcos∮＝10kV*300A*0.98*6h＝17640kwh
Increase electricity sales amount the year same period approximately: (causing because of long-term heating accident that line tripping was 8 calculating) with 1 year
Article 8, inferior * 17640kwh=14.112w ten thousand kwh
The cost of making the illuminated temperature-sensitive cap of a power transmission and transforming equipment contact system is 100 yuan, and 8 circuits calculate with 30 temperature-sensitive caps, and cost is 30=3000 yuan of 50 yuan of *
Directly increase-0.3 ten thousand yuan=7.27 ten thousand yuan/year in about 14.112 ten thousand kwh*0.5469 of economic benefit unit
Because the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system accomplished to give warning in advance, can effectively avoid the energy loss and the economic loss that cause because of power failure tripping operation accident that heating causes, guaranteed electric power netting safe running.
Along with the progress of society, power load rapid growth, and carrying out of power transmission and transformation equipment state overhauling work have under the new situation proposed new higher requirement to safe operation, the maintenance of power transmission and transforming equipment, therefore just need constantly carry out technical renovation.Through the 3G wireless network transmissions, realize on-line monitoring constantly to power transmission and transforming equipment, improve power supply reliability, guarantee the safe operation of electrical network.
Be embodiment 2 among Fig. 5, said processor circuit comprises single-chip microcomputer 601, adopts MCS51 Series MCU commonly used to get final product, and the miscellaneous part annexation is given unnecessary details at this referring among Fig. 2 no longer one by one.
Though the above-mentioned accompanying drawing that combines is described the embodiment of invention; But be not restriction to the invention protection domain; One of ordinary skill in the art should be understood that; On the basis of technical scheme of invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of invention.
Claims (10)
1. the illuminated temperature-sensitive cap of power transmission and transforming equipment contact system; It is characterized in that; It comprises supply unit, the illuminated temperature-sensitive cap of power transmission and transforming equipment contact, Surveillance center, and said supply unit is electrically connected with the illuminated temperature-sensitive cap of power transmission and transforming equipment contact; The illuminated temperature-sensitive cap of said power transmission and transforming equipment contact comprises wireless transmitter module, and said wireless transmitter module is through network and Surveillance center's wireless receiving module communication; The illuminated temperature-sensitive cap of said power transmission and transforming equipment contact also comprises fixing and masked segment and temperature measurement fraction, and said temperature measurement fraction is arranged in fixing and the masked segment, is provided with luminous prior-warning device in the temperature measurement fraction.
2. the illuminated temperature-sensitive cap of power transmission and transforming equipment contact as claimed in claim 1 system; It is characterized in that; Said fixing with masked segment comprises fastening end and temperature-sensitive cap screening can; Be milled with flatly on the sidewall of said fastening end, the lower surface is provided with the internal thread counterbore, the fastening bolt immovable fitting of internal thread counterbore and power transmission and transforming equipment contact; Upper surface, fastening end and temperature-sensitive cap screening can bottom connect as one, and said temperature-sensitive cap screening can is stainless steel casing or aluminum alloy casing or spun glass shell; On the sidewall of said stainless steel casing or aluminum alloy casing or spun glass shell, be provided with at least one hole, said luminous prior-warning device cooperates installation with the hole.
3. the illuminated temperature-sensitive cap of power transmission and transforming equipment contact as claimed in claim 1 system is characterized in that said supply unit is a high pressure self-supplying power source mode, is included in the high pressure self-supplying power source transformer iron core coil of induction power taking on the power equipment; Said high pressure self-supplying power source mutual inductor is open type forceps type structure CT or bolted bus row formula open C T; Said current transformer CT primary side carries out the EM coupling induction through open type forceps type structure or bolted bus row formula with the power equipment circuit and is connected; Current transformer CT secondary side is connected with flat ripple reactance; Flat ripple reactance is connected with rectifier bridge; Rectification bridge output end is connected with electric capacity of voltage regulation, voltage protection circuit, LC filtering circuit and DC-DC module, current-limiting resistance successively, and current-limiting resistance is connected with the illuminated temperature-sensitive cap of power transmission and transforming equipment contact.
4. the illuminated temperature-sensitive cap of power transmission and transforming equipment contact as claimed in claim 2 system is characterized in that said temperature measurement fraction comprises the thermometric sensing circuit; Processor circuit and luminous prior-warning device; Said thermometric sensing circuit, processor circuit and luminous prior-warning device are electrically connected successively; Said thermometric sensing circuit comprises temperature probe, and said temperature probe is thermistor or thermojunction type temperature controller or semiconductor integrated temperature sensor.
5. the illuminated temperature-sensitive cap of a power transmission and transforming equipment contact as claimed in claim 4 system is characterized in that said processor circuit comprises single-chip microcomputer, and said single-chip microcomputer is connected with wireless transmitter module; Said single-chip microcomputer also is connected with thermistor or thermojunction type temperature controller or semiconductor integrated temperature sensor and luminous prior-warning device respectively.
6. the illuminated temperature-sensitive cap of power transmission and transforming equipment contact as claimed in claim 4 system; It is characterized in that; Said processor circuit comprises comparer, and said comparer is two, two comparers with same set of or two independently thermistor or thermojunction type temperature controller or semiconductor integrated temperature sensor are connected; Two comparator output terminals are connected with luminous prior-warning device with wireless transmitter module, and said comparer is a MAX965 supply voltage comparer.
7. the illuminated temperature-sensitive cap of power transmission and transforming equipment contact as claimed in claim 4 system; It is characterized in that; Comprise LED light in the said luminous prior-warning device, said LED light is super bright dual-colored LED pilot lamp or common LED pilot lamp, said double-colored be green and red; Said LED light is connected with processor circuit and is fixed in the hole that temperature-sensitive cap screening can sidewall is provided with.
8. the illuminated temperature-sensitive cap of a power transmission and transforming equipment contact as claimed in claim 4 system is characterized in that, is provided with heat-conducting glue between said temperature probe and fixing and the masked segment.
9. the illuminated temperature-sensitive cap of a power transmission and transforming equipment contact as claimed in claim 1 system is characterized in that, said supply unit adopts dry battery type power supply or solar cell.
10. the illuminated temperature-sensitive cap of a power transmission and transforming equipment contact as claimed in claim 1 system is characterized in that said network comprises the GSM/GPRS/CDAM/3G network.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210101278.9A CN102607733B (en) | 2012-04-09 | 2012-04-09 | Electric transmission and transformation equipment contact luminous temperature sensing cap system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210101278.9A CN102607733B (en) | 2012-04-09 | 2012-04-09 | Electric transmission and transformation equipment contact luminous temperature sensing cap system |
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| CN102607733A true CN102607733A (en) | 2012-07-25 |
| CN102607733B CN102607733B (en) | 2014-02-05 |
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| CN201210101278.9A Expired - Fee Related CN102607733B (en) | 2012-04-09 | 2012-04-09 | Electric transmission and transformation equipment contact luminous temperature sensing cap system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017930A (en) * | 2012-12-14 | 2013-04-03 | 山东电力集团公司菏泽供电公司 | Transformer substation secondary equipment temperature collecting device |
| CN103728039A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Busbar temperature rise warning detection device based on thermocouple |
| CN104779528A (en) * | 2015-04-14 | 2015-07-15 | 宁波宁通电气成套有限公司 | Intelligent high-voltage switch cabinet |
| CN107229300A (en) * | 2017-08-01 | 2017-10-03 | 任宝泉 | A kind of automatic thermostat for greenhouse air discharging machine |
| CN110779636A (en) * | 2019-10-31 | 2020-02-11 | 江苏量为石科技股份有限公司 | Temperature measuring device for power transmission system |
| US20210072092A1 (en) * | 2019-09-05 | 2021-03-11 | FATRI (Xiamen) Technologies, Co., Ltd. | Temperature measuring device and electric power system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005100164A (en) * | 2003-09-25 | 2005-04-14 | Ntn Corp | Wireless sensor system and bearing device with wireless sensor |
| CN1812227A (en) * | 2005-01-24 | 2006-08-02 | 谢东阳 | High-voltage power line long-distane monitoring terminal |
| CN201673587U (en) * | 2010-04-19 | 2010-12-15 | 北京国电力成科技有限公司 | Operating temperature monitor for high-voltage equipment |
| CN201993905U (en) * | 2011-04-07 | 2011-09-28 | 云南电力试验研究院(集团)有限公司 | ZigBee network-based temperature online monitoring and early-warning system |
| CN202511918U (en) * | 2012-04-09 | 2012-10-31 | 济南市历城区供电公司 | Lighting thermal cap system of contact point of electric transmission and transformation equipment |
-
2012
- 2012-04-09 CN CN201210101278.9A patent/CN102607733B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005100164A (en) * | 2003-09-25 | 2005-04-14 | Ntn Corp | Wireless sensor system and bearing device with wireless sensor |
| CN1812227A (en) * | 2005-01-24 | 2006-08-02 | 谢东阳 | High-voltage power line long-distane monitoring terminal |
| CN201673587U (en) * | 2010-04-19 | 2010-12-15 | 北京国电力成科技有限公司 | Operating temperature monitor for high-voltage equipment |
| CN201993905U (en) * | 2011-04-07 | 2011-09-28 | 云南电力试验研究院(集团)有限公司 | ZigBee network-based temperature online monitoring and early-warning system |
| CN202511918U (en) * | 2012-04-09 | 2012-10-31 | 济南市历城区供电公司 | Lighting thermal cap system of contact point of electric transmission and transformation equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017930A (en) * | 2012-12-14 | 2013-04-03 | 山东电力集团公司菏泽供电公司 | Transformer substation secondary equipment temperature collecting device |
| CN103728039A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Busbar temperature rise warning detection device based on thermocouple |
| CN104779528A (en) * | 2015-04-14 | 2015-07-15 | 宁波宁通电气成套有限公司 | Intelligent high-voltage switch cabinet |
| CN107229300A (en) * | 2017-08-01 | 2017-10-03 | 任宝泉 | A kind of automatic thermostat for greenhouse air discharging machine |
| US20210072092A1 (en) * | 2019-09-05 | 2021-03-11 | FATRI (Xiamen) Technologies, Co., Ltd. | Temperature measuring device and electric power system |
| CN110779636A (en) * | 2019-10-31 | 2020-02-11 | 江苏量为石科技股份有限公司 | Temperature measuring device for power transmission system |
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