CN104236747A - Warning method and self-energy taking warning indicator for overheating of electric system joints - Google Patents
Warning method and self-energy taking warning indicator for overheating of electric system joints Download PDFInfo
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- CN104236747A CN104236747A CN201410549888.4A CN201410549888A CN104236747A CN 104236747 A CN104236747 A CN 104236747A CN 201410549888 A CN201410549888 A CN 201410549888A CN 104236747 A CN104236747 A CN 104236747A
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Abstract
The invention relates to a warning method and a self-energy taking warning indicator for overheating of electric system joints and belongs to the technical field of electric system running safety. The self-energy taking warning indicator for the overheating of electric system joints comprises a shell (10), an alternating current energy taking loop (1) arranged in the shell, a high-frequency absorbing loop (2), an alternating current amplitude limiting loop (3), a rectifying loop (4), a direct current voltage stabilizing loop (5), a heat energy releasing loop (6), a thermistor loop (7), a red lamp loop (8) and a green lamp loop (9). When the temperature of the contact surface of a joint is 20 to 30 degrees centigrade higher than a normal temperature due to the increase of contact resistance, the self-energy taking warning indicator emits red warning light which can be easily observed by a professional worker and discovered by people, the professional worker or people report to an electric power department so as to enable the circuit running maintainer to obtain the report early, the maintainer rushes to the scene in first time to use the simplest method to remove an oxide film, and then the maintainer fastens nuts; the hidden trouble which may cause power outage is eliminated at the initial budding stage.
Description
Technical field
The present invention relates to the overheated alarming method for power of a kind of electric system joint and self-energizing attention device, belong to Operation of Electric Systems security technology area.
Background technology
In Operation of Electric Systems, the accident caused because device junction is overheated occurs also to be hard nut to crack again and again, cause the ratio of electric power accident to account for more than 60 of hundred parts of all electric power accidents because joint is overheated every year, loss is astronomical figure, and consequence is also extremely painful.How to prevent is the key of dealing with problems, and background technology is used for detection line contact has temperature rise phenomenon method mainly: observe joint rain evaporation of water and snow melting situation, paste temperature-indicating wax label, mounting temperature sensor or with inspection methods such as remote infrared line temperature measurer thermometrics.For observing, joint is overheated limitation to above several method, also just to some important point, in the face of power contact is ubiquitous, also can only accomplish the detection of formula without going into it deeply and unable to do what one wishes in face of thousands of contacts; Have most contact often to can't detect, and accident just may occur in here, be also one of hard to guard against reason.Being superheated to accidents caused from contact is free process, short then several months from quantitative change to qualitative change, several weeks, long then several years, if at certain contact because certain reason (loosened screw or oxidation) contact resistance increases to some extent. surface of contact temperature rise is a little, no longer wait its development, and before contact resistance increase-temperature rise-increase again vicious cycle leads to a disaster to burning contact Timeliness coverage, be the direction of dealing with problems.
Summary of the invention
The object of the invention is to provide the overheated alarming method for power of a kind of electric system joint and self-energizing attention device, the overheated hidden danger point of Timeliness coverage line joint, timely process, avoid leading to electric power accident, accident potential was eliminated in the budding period, ensure safe operation, solve Problems existing in background technology.
Technical scheme of the present invention is:
The self-energizing attention device that electric system joint is overheated, comprise shell with arrange in the enclosure exchange get can loop, high-frequency absorption loop, exchange slicing circuit, commutating circuit, DC voltage-stabilizing loop, heat energy Releasing loop, thermistor loop, red light loop and green light loop.
Described shell is annular outer cover; Described interchange is got and can be made up of split ring shaped iron core and secondary coil in loop, the internal diameter of split ring shaped iron core is greater than the internal diameter of annular outer cover, the external diameter of split ring shaped iron core is less than the external diameter of annular outer cover, split ring shaped iron core coupling is arranged in the annular solid of shell, and split ring shaped iron core is wound around secondary coil; The internal diameter of annular outer cover and the conducting rod joint external diameter of electric system match.
The output terminal of described secondary coil connects high-frequency absorption loop successively, exchanges slicing circuit and commutating circuit, exports DC voltage; Commutating circuit output terminal connects DC voltage-stabilizing loop, heat energy Releasing loop and thermistor loop successively, and the thermistor in thermistor loop is (NTC) thermistor of negative temperature coefficient, and when temperature is raised, its resistance value can decline rapidly.
Red light loop comprises red light triode and red light diode, and green light loop comprises green light triode and green light diode; The base stage of red light triode is connected with the output in thermistor loop time, and the emitter of red light triode connects red light diode; The emitter of red light triode is connected with green light transistor base, and the emitter of green light triode connects green light diode.
Described annular outer cover, according to the conducting rod joint external diameter of circuit and power equipment, makes the annular outer cover of multiple internal diameter, internal diameter 12mm-35mm; Thickness is as far as possible thin, and that the thinnest is 5mm; Be enclosed within conducting rod joint as pad, then overlap upper connecting terminal, finally use bolted; Annular outer cover is provided with two windows, and red light diode placed by a window, and green light diode placed by another window.
Described split ring shaped iron core high saturated magnetic induction B T be the siliconized plate of 2.03, make the split ring shaped iron core of sectional area 30 square millimeters; Secondary coil 0.23 enameled wire coiling 30-60 on split ring shaped iron core is enclosed; Line current encloses around 30 when being greater than 300A, and circuit can around 60 circles when 100A.
When conductive pole connector temperature is normal, thermistor temp is normal, and green light transistor base current potential is higher than 0.7v, and green light diode is bright; Red light transistor base current potential is lower than 0.6v, and red light diode does not work.When conductive pole connector temperature is abnormal, thermistor environment temperature rises, and the resistance of thermistor declines rapidly, and make the base voltage of red light triode increase rapidly, red light triode ON, red light diode is bright; Simultaneously also because the conducting of red light triode makes the base voltage of green light triode decline, green light diode goes out.Fully reflecting whether contact has superheating phenomenon, providing foundation for eliminating accident potential.
Exchange get can loop, high-frequency absorption loop, commutating circuit, DC voltage-stabilizing loop effect be for thermistor loop, red light loop and green light loop provide power supply; heat energy Releasing loop is protective effect with exchanging slicing circuit; when running into thunder and lightning or upper kilo-ampere Short-Circuit High Current; interchange slicing circuit and heat energy Releasing loop form path; large power triode conducting in heat energy Releasing loop, protects whole electronic circuit.
Casting epoxy resin in shell, gets energy loop, high-frequency absorption loop, interchange slicing circuit, commutating circuit, DC voltage-stabilizing loop, heat energy Releasing loop, thermistor loop, red light loop and green light loop and is solidified as a whole by the interchange arranged in the enclosure.
High-frequency absorption loop, commutating circuit, DC voltage-stabilizing loop are all public circuit known in this field.
The alarming method for power that electric system joint is overheated, comprises following steps:
1. the self-energizing attention device that electric system joint is overheated, comprise shell with arrange in the enclosure exchange get can loop, high-frequency absorption loop, exchange slicing circuit, commutating circuit, DC voltage-stabilizing loop, heat energy Releasing loop, thermistor loop, red light loop and green light loop;
Described shell is annular outer cover; Described interchange is got and can be made up of split ring shaped iron core and secondary coil in loop, the internal diameter of split ring shaped iron core is greater than the internal diameter of annular outer cover, the external diameter of split ring shaped iron core is less than the external diameter of annular outer cover, split ring shaped iron core coupling is arranged in the annular solid of shell, and split ring shaped iron core is wound around secondary coil; The internal diameter of annular outer cover and the conducting rod joint external diameter of electric system match;
The output terminal of described secondary coil connects high-frequency absorption loop successively, exchanges slicing circuit and commutating circuit, exports DC voltage; Commutating circuit output terminal connects DC voltage-stabilizing loop, heat energy Releasing loop and thermistor loop successively, and the thermistor in thermistor loop is (NTC) thermistor of negative temperature coefficient, and when temperature is raised, its resistance value can decline rapidly;
Red light loop comprises red light triode and red light diode, and green light loop comprises green light triode and green light diode; The base stage of red light triode is connected with the output in thermistor loop time, and the emitter of red light triode connects red light diode; The emitter of red light triode is connected with green light transistor base, and the emitter of green light triode connects green light diode;
2. described annular outer cover is enclosed within conducting rod joint as pad, then overlaps upper connecting terminal, finally uses bolted; Annular outer cover is provided with two windows, and red light diode placed by a window, and green light diode placed by another window;
3., when conductive pole connector temperature is normal, thermistor temp is normal, and green light transistor base current potential is higher than 0.7v, and green light diode is bright; Red light transistor base current potential is lower than 0.6v, and red light diode does not work.When conductive pole connector temperature is abnormal, thermistor environment temperature rises, and the resistance of thermistor declines rapidly, and make the base voltage of red light triode increase rapidly, red light triode ON, red light diode is bright; Simultaneously also because the conducting of red light triode makes the base voltage of green light triode decline, green light diode goes out; Fully reflecting whether contact has superheating phenomenon, providing foundation for eliminating accident potential;
4. the red light diode on annular outer cover sends red signal, green light diode sends green light signals, the signal warning sent is easy to allow professional staff make an inspection tour, also be easy to allow the numerous common people find and to report power department, circuit operating maintenance personnel are reported early, and the very first time reaches the spot, with sand paper or file, oxide film on connection terminal is polished off, clamp nut.
Described heat energy Releasing loop is made up of large power triode; exchange slicing circuit to be made up of bi-directional voltage stabilizing diode; when running into thunder and lightning or upper kilo-ampere Short-Circuit High Current; interchange slicing circuit and heat energy Releasing loop form path; large power triode conducting in heat energy Releasing loop, protects whole electronic circuit.
Beneficial effect of the present invention: when somewhere contact makes its surface of contact have temperature rise phenomenon because contact resistance increases, (about 80 degree are generally set as when spending higher than normal temperature 20-30, burn the temperature of contact more than thousands of degree), just send warning ruddiness, daytime also can find, night, joint was aglow, like the illusion that the joint occurred is seriously overheated, trickle little hidden danger is expanded thousands of times, be easy to allow professional staff make an inspection tour, also be easy to allow the numerous common people find, report power department, thus circuit operating maintenance personnel are reported early, the very first time reaches the spot and by most straightforward procedure (with sand paper or file), oxide film to be polished off, clamp nut, like " plaque magpie is cured the desease, hot compress ", the hidden danger likely leading to power outage was eliminated in the initial budding stage.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention schematic diagram;
Fig. 2 is embodiment of the present invention schematic appearance;
Fig. 3 is embodiment of the present invention using state schematic diagram;
In figure: exchange and get energy loop 1, high-frequency absorption loop 2, exchange slicing circuit 3, commutating circuit 4, DC voltage-stabilizing loop 5, heat energy Releasing loop 6, thermistor loop 7, red light loop 8, green light loop 9, shell 10, split ring shaped iron core 11, secondary coil 12, red light diode 13, green light diode 14, conducting rod joint 15, connection terminal 16, nut 17, large power triode Q1, red light triode Q2, green light triode Q3.
Embodiment
Below in conjunction with accompanying drawing, by example, the invention will be further described.
The self-energizing attention device that electric system joint is overheated, comprise shell 10 with arrange in the enclosure exchange get can loop 1, high-frequency absorption loop 2, exchange slicing circuit 3, commutating circuit 4, DC voltage-stabilizing loop 5, heat energy Releasing loop 6, thermistor loop 7, red light loop 8 and green light loop 9.
Described shell is annular outer cover; Described interchange is got and can be made up of split ring shaped iron core 11 and secondary coil 12 in loop 1, the internal diameter of split ring shaped iron core 11 is greater than the internal diameter of annular outer cover, the external diameter of split ring shaped iron core 11 is less than the external diameter of annular outer cover, split ring shaped iron core 11 coupling is arranged in the annular solid of shell, split ring shaped iron core 11 is wound around secondary coil 12; The internal diameter of annular outer cover and the conducting rod joint external diameter of electric system match.
The output terminal of described secondary coil 12 connects high-frequency absorption loop 2 successively, exchanges slicing circuit 3 and commutating circuit 4, exports DC voltage; Commutating circuit 4 output terminal connects DC voltage-stabilizing loop 5, heat energy Releasing loop 6 and thermistor loop 7 successively, and the thermistor in thermistor loop 7 is (NTC) thermistor of negative temperature coefficient, and when temperature is raised, its resistance value can decline rapidly.
Red light loop 8 comprises red light triode and red light diode, and green light loop 9 comprises green light triode and green light diode; The base stage of red light triode is connected with the output in thermistor loop 7 time, and the emitter of red light triode connects red light diode; The emitter of red light triode is connected with green light transistor base, and the emitter of green light triode connects green light diode.
Described annular outer cover, according to the conducting rod joint external diameter of circuit and power equipment, makes the annular outer cover of multiple internal diameter, internal diameter 12mm-35mm; Thickness is as far as possible thin, and that the thinnest is 5mm; Be enclosed within conducting rod joint as pad, then overlap upper connecting terminal, use bolted most; Annular outer cover is provided with two windows, and red light diode placed by a window, and green light diode placed by another window.
Described split ring shaped iron core 11 with high saturated magnetic induction B T be the siliconized plate of 2.03, make the split ring shaped iron core of sectional area 30 square millimeters; Secondary coil 0.23 enameled wire coiling 30-60 on split ring shaped iron core is enclosed; Line current encloses around 30 when being greater than 300A, and circuit can around 60 circles when 100A.
When conductive pole connector temperature is normal, thermistor temp is normal, and green light transistor base current potential is higher than 0.7v, and green light diode is bright; Red light transistor base current potential is lower than 0.6v, and red light diode does not work.When conductive pole connector temperature is abnormal, thermistor environment temperature rises, and the resistance of thermistor declines rapidly, and make the base voltage of red light triode increase rapidly, red light triode ON, red light diode is bright; Simultaneously also because the conducting of red light triode makes the base voltage of green light triode decline, green light diode goes out.Fully reflecting whether contact has superheating phenomenon, providing foundation for eliminating accident potential.
Exchange get can loop 1, high-frequency absorption loop 2, commutating circuit 4, DC voltage-stabilizing loop 5 effect be for thermistor loop 7, red light loop 8 and green light loop 9 provide power supply; heat energy Releasing loop 6 is protective effects with exchanging slicing circuit 3; when running into thunder and lightning or upper kilo-ampere Short-Circuit High Current; interchange slicing circuit and heat energy Releasing loop form path; large power triode conducting in heat energy Releasing loop 6, protects whole electronic circuit.
Casting epoxy resin in shell, gets energy loop 1, high-frequency absorption loop 2, interchange slicing circuit 3, commutating circuit 4, DC voltage-stabilizing loop 5, heat energy Releasing loop 6, thermistor loop 7, red light loop 8 and green light loop 9 and is solidified as a whole by the interchange arranged in the enclosure.
High-frequency absorption loop 2, commutating circuit 4, DC voltage-stabilizing loop 5, be all public circuit known in this field.
The alarming method for power that electric system joint is overheated, comprises following steps:
1. the self-energizing attention device that electric system joint is overheated, comprise shell 10 with arrange in the enclosure exchange get can loop 1, high-frequency absorption loop 2, exchange slicing circuit 3, commutating circuit 4, DC voltage-stabilizing loop 5, heat energy Releasing loop 6, thermistor loop 7, red light loop 8 and green light loop 9;
Described shell is annular outer cover; Described interchange is got and can be made up of split ring shaped iron core 11 and secondary coil 12 in loop 1, the internal diameter of split ring shaped iron core 11 is greater than the internal diameter of annular outer cover, the external diameter of split ring shaped iron core 11 is less than the external diameter of annular outer cover, split ring shaped iron core 11 coupling is arranged in the annular solid of shell, split ring shaped iron core 11 is wound around secondary coil 12; The internal diameter of annular outer cover and the conducting rod joint external diameter of electric system match;
The output terminal of described secondary coil 12 connects high-frequency absorption loop 2 successively, exchanges slicing circuit 3 and commutating circuit 4, exports DC voltage; Commutating circuit 4 output terminal connects DC voltage-stabilizing loop 5, heat energy Releasing loop 6 and thermistor loop 7 successively, and the thermistor in thermistor loop 7 is (NTC) thermistor of negative temperature coefficient, and when temperature is raised, its resistance value can decline rapidly;
Red light loop 8 comprises red light triode and red light diode, and green light loop 9 comprises green light triode and green light diode; The base stage of red light triode is connected with the output in thermistor loop 7 time, and the emitter of red light triode connects red light diode; The emitter of red light triode is connected with green light transistor base, and the emitter of green light triode connects green light diode;
2. described annular outer cover is enclosed within conducting rod joint as pad, then overlaps upper connecting terminal, finally uses bolted; Annular outer cover is provided with two windows, and red light diode placed by a window, and green light diode placed by another window;
3., when conductive pole connector temperature is normal, thermistor temp is normal, and green light transistor base current potential is higher than 0.7v, and green light diode is bright; Red light transistor base current potential is lower than 0.6v, and red light diode does not work.When conductive pole connector temperature is abnormal, thermistor environment temperature rises, and the resistance of thermistor declines rapidly, and make the base voltage of red light triode increase rapidly, red light triode ON, red light diode is bright; Simultaneously also because the conducting of red light triode makes the base voltage of green light triode decline, green light diode goes out; Fully reflecting whether contact has superheating phenomenon, providing foundation for eliminating accident potential;
4. the red light diode on annular outer cover sends red signal, green light diode sends green light signals, the signal warning sent is easy to allow professional staff make an inspection tour, also be easy to allow the numerous common people find and to report power department, circuit operating maintenance personnel are reported early, and the very first time reaches the spot, with sand paper or file, oxide film on connection terminal is polished off, clamp nut.
Described heat energy Releasing loop is made up of large power triode; exchange slicing circuit to be made up of bi-directional voltage stabilizing diode; when running into thunder and lightning or upper kilo-ampere Short-Circuit High Current; interchange slicing circuit and heat energy Releasing loop form path; large power triode conducting in heat energy Releasing loop 6, protects whole electronic circuit.
Require different according to the model of electric line and electrical equipment and mounting process, and design gasket type that Multiple Type is of moderate size and the overheated self-energizing attention device of lantern ring type electric system joint, be arranged on the position of line switching, substation transformer low-pressure side and power cable connector with the form of minipad and small casing as accessory, whether its joint of real time on-line monitoring has improper temperature rise phenomenon.In the place of test, installed the self-energizing attention device that multiple electric system joint is overheated, safety on line runs 3 months and has a surplus, and all can normally work, and reaches the object whether on-line checkingi joint has temperature rise phenomenon.Security performance of the present invention is reliable, and environmental protection and energy saving are with low cost, are convenient to popularize in an all-round way in electric system.Practicality and operability widely is more had than tens of remote infrared temperature measurer of remaininging ten thousand yuan, and can detect in real time on the line, non-maintaining, need not connect outward in power supply without battery, self-induction electric energy maintains self work, there is not the problem of inside and outside electrical equipment contact, and many decades can be reached tenure of use, a kind of truly feasible overheated monitoring means is provided for power equipment safety runs, for the overheated hidden danger point of Timeliness coverage line joint provides foundation, the phenomenon elimination likely leading to electric power accident creates condition in the budding period.
Claims (5)
1. the self-energizing attention device that electric system joint is overheated, is characterized in that: comprise shell (10) with arrange in the enclosure exchange get can loop (1), high-frequency absorption loop (2), exchange slicing circuit (3), commutating circuit (4), DC voltage-stabilizing loop (5), heat energy Releasing loop (6), thermistor loop (7), red light loop (8) and green light loop (9);
Described shell is annular outer cover; Described interchange is got and can be made up of split ring shaped iron core (11) and secondary coil (12) in loop (1), the internal diameter of split ring shaped iron core (11) is greater than the internal diameter of annular outer cover, the external diameter of split ring shaped iron core (11) is less than the external diameter of annular outer cover, split ring shaped iron core (11) coupling is arranged in the annular solid of shell, split ring shaped iron core (11) is wound around secondary coil (12); The internal diameter of annular outer cover and the conducting rod joint external diameter of electric system match;
The output terminal of described secondary coil (12) connects high-frequency absorption loop (2) successively, exchanges slicing circuit (3) and commutating circuit (4), exports DC voltage; Commutating circuit (4) output terminal connects DC voltage-stabilizing loop (5), heat energy Releasing loop (6) and thermistor loop (7) successively, thermistor in thermistor loop (7) is (NTC) thermistor of negative temperature coefficient, when temperature is raised, its resistance value can decline rapidly;
Red light loop (8) comprises red light triode and red light diode, and green light loop (9) comprise green light triode and green light diode; The base stage of red light triode is connected with the output of thermistor loop (7) time, and the emitter of red light triode connects red light diode; The emitter of red light triode is connected with green light transistor base, and the emitter of green light triode connects green light diode;
Described annular outer cover, according to the conducting rod joint external diameter of circuit and power equipment, is made the annular outer cover of multiple internal diameter, is enclosed within conducting rod joint, then overlaps upper connecting terminal, finally use bolted as pad; Annular outer cover is provided with two windows, and red light diode placed by a window, and green light diode placed by another window.
2. the self-energizing attention device that a kind of electric system joint according to claim 1 is overheated, it is characterized in that: described split ring shaped iron core (11) with high saturated magnetic induction B T be the siliconized plate of 2.03, make the split ring shaped iron core of sectional area 30 square millimeters; Secondary coil 0.23 enameled wire coiling 30-60 on split ring shaped iron core is enclosed; Line current encloses around 30 when being greater than 300A, and circuit can around 60 circles when 100A.
3. the self-energizing attention device that a kind of electric system joint according to claim 1 and 2 is overheated, it is characterized in that: casting epoxy resin in shell, by arrange interchange in the enclosure get can loop (1), high-frequency absorption loop (2), exchange slicing circuit (3), commutating circuit (4), DC voltage-stabilizing loop (5), heat energy Releasing loop (6), thermistor loop (7), red light loop (8) and green light loop (9) are solidified as a whole.
4. the alarming method for power that electric system joint is overheated, is characterized in that comprising following steps:
1. the self-energizing attention device that electric system joint is overheated, comprise shell (10) with arrange in the enclosure exchange get can loop (1), high-frequency absorption loop (2), exchange slicing circuit (3), commutating circuit (4), DC voltage-stabilizing loop (5), heat energy Releasing loop (6), thermistor loop (7), red light loop (8) and green light loop (9);
Described shell is annular outer cover; Described interchange is got and can be made up of split ring shaped iron core (11) and secondary coil (12) in loop (1), the internal diameter of split ring shaped iron core (11) is greater than the internal diameter of annular outer cover, the external diameter of split ring shaped iron core (11) is less than the external diameter of annular outer cover, split ring shaped iron core (11) coupling is arranged in the annular solid of shell, split ring shaped iron core (11) is wound around secondary coil (12); The internal diameter of annular outer cover and the conducting rod joint external diameter of electric system match;
The output terminal of described secondary coil (12) connects high-frequency absorption loop (2) successively, exchanges slicing circuit (3) and commutating circuit (4), exports DC voltage; Commutating circuit (4) output terminal connects DC voltage-stabilizing loop (5), heat energy Releasing loop (6) and thermistor loop (7) successively, thermistor in thermistor loop (7) is (NTC) thermistor of negative temperature coefficient, when temperature is raised, its resistance value can decline rapidly;
Red light loop (8) comprises red light triode and red light diode, and green light loop (9) comprise green light triode and green light diode; The base stage of red light triode is connected with the output of thermistor loop (7) time, and the emitter of red light triode connects red light diode; The emitter of red light triode is connected with green light transistor base, and the emitter of green light triode connects green light diode;
2. described annular outer cover is enclosed within conducting rod joint as pad, then overlaps upper connecting terminal, finally uses bolted; Annular outer cover is provided with two windows, and red light diode placed by a window, and green light diode placed by another window;
3., when conductive pole connector temperature is normal, thermistor temp is normal, and green light transistor base current potential is higher than 0.7v, and green light diode is bright; Red light transistor base current potential is lower than 0.6v, and red light diode does not work;
When conductive pole connector temperature is abnormal, thermistor environment temperature rises, and the resistance of thermistor declines rapidly, and make the base voltage of red light triode increase rapidly, red light triode ON, red light diode is bright; Simultaneously also because the conducting of red light triode makes the base voltage of green light triode decline, green light diode goes out; Fully reflecting whether contact has superheating phenomenon, providing foundation for eliminating accident potential;
4. the red light diode on annular outer cover sends red signal, green light diode sends green light signals, the signal warning sent is easy to allow professional staff make an inspection tour, also be easy to allow the numerous common people find and to report power department, circuit operating maintenance personnel are reported early, and the very first time reaches the spot, with sand paper or file, oxide film on connection terminal is polished off, clamp nut.
5. the alarming method for power that a kind of electric system joint according to claim 4 is overheated; it is characterized in that: described heat energy Releasing loop is made up of large power triode; exchange slicing circuit to be made up of bi-directional voltage stabilizing diode; when running into thunder and lightning or upper kilo-ampere Short-Circuit High Current; interchange slicing circuit and heat energy Releasing loop form path; large power triode conducting in heat energy Releasing loop (6), protects whole electronic circuit.
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| CN201410549888.4A CN104236747A (en) | 2014-10-17 | 2014-10-17 | Warning method and self-energy taking warning indicator for overheating of electric system joints |
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| CN201410549888.4A CN104236747A (en) | 2014-10-17 | 2014-10-17 | Warning method and self-energy taking warning indicator for overheating of electric system joints |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068362A (en) * | 2017-04-27 | 2017-08-18 | 国网冀北电力有限公司唐山供电公司 | A kind of step down side insulating sleeve that there is overheat to warn and its application method |
| CN108931306A (en) * | 2018-08-22 | 2018-12-04 | 国网冀北电力有限公司唐山供电公司 | A kind of electric intelligent gasket and method with overheat alarm function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033506U (en) * | 1988-02-01 | 1989-03-01 | 侯仁保 | Electric contact overhot continued on-line monitor |
| JPH0270218A (en) * | 1988-08-31 | 1990-03-09 | Furukawa Electric Co Ltd:The | Temperature detecting method at electrical joint |
| CN1133436A (en) * | 1995-04-11 | 1996-10-16 | 赵根田 | Method for testing heat generated at connector of high-voltage line |
| CN2385324Y (en) * | 1999-07-27 | 2000-06-28 | 赵根田 | Temp.-indicating magnetic sheet |
| CN201561817U (en) * | 2009-08-11 | 2010-08-25 | 甘肃省电力公司金昌供电公司 | High-voltage cable joint temperature rise alarm |
| CN103453999A (en) * | 2013-08-09 | 2013-12-18 | 国家电网公司 | Transformer substation device temperature monitoring system based on self-energy-acquiring wireless temperature sensor |
| CN103453998A (en) * | 2013-08-09 | 2013-12-18 | 国家电网公司 | Self-energy-taking wireless temperature sensor and achieving method thereof |
| CN103822728A (en) * | 2014-02-27 | 2014-05-28 | 成都赛康信息技术有限责任公司 | Wireless temperature sensor chip |
-
2014
- 2014-10-17 CN CN201410549888.4A patent/CN104236747A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033506U (en) * | 1988-02-01 | 1989-03-01 | 侯仁保 | Electric contact overhot continued on-line monitor |
| JPH0270218A (en) * | 1988-08-31 | 1990-03-09 | Furukawa Electric Co Ltd:The | Temperature detecting method at electrical joint |
| CN1133436A (en) * | 1995-04-11 | 1996-10-16 | 赵根田 | Method for testing heat generated at connector of high-voltage line |
| CN2385324Y (en) * | 1999-07-27 | 2000-06-28 | 赵根田 | Temp.-indicating magnetic sheet |
| CN201561817U (en) * | 2009-08-11 | 2010-08-25 | 甘肃省电力公司金昌供电公司 | High-voltage cable joint temperature rise alarm |
| CN103453999A (en) * | 2013-08-09 | 2013-12-18 | 国家电网公司 | Transformer substation device temperature monitoring system based on self-energy-acquiring wireless temperature sensor |
| CN103453998A (en) * | 2013-08-09 | 2013-12-18 | 国家电网公司 | Self-energy-taking wireless temperature sensor and achieving method thereof |
| CN103822728A (en) * | 2014-02-27 | 2014-05-28 | 成都赛康信息技术有限责任公司 | Wireless temperature sensor chip |
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| CN107068362A (en) * | 2017-04-27 | 2017-08-18 | 国网冀北电力有限公司唐山供电公司 | A kind of step down side insulating sleeve that there is overheat to warn and its application method |
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