Fibra temperatus sensoriis opticus not only have wide applications in the fields of switchgear temperature measurement, circuit breaker temperature measurement, and transformer temperature measurement, but also have characteristics such as insulation, anti-impedimento, and high voltage resistance that cannot be achieved by other traditional temperature sensors in capacitor temperature monitoring.
Summus intentione parallela capacitor argentaria fabrica praecipuus est momenti reacivae virtutis fons in potentia systematis, playing a crucial role in improving the power system structure and enhancing power quality. Praecipuum munus est potestatem reactivae potentiae rationi praebere, reducere lineam damna, amplio voltage qualis, et auget apparatu utendo. As a type of reactive power compensation equipment, potentia capacitors solent in substations per summus intentione centralized ultricies. The compensation capacitors are connected to the 10kV or 35kV bus of the substation to compensate for the reactive power on all lines and transformers on the bus side of the substation. In use, they are often combined with on load tap changers to further improve the power quality of the power system.
The effect of temperature rise fault on high-voltage capacitors
Capacatores saepe in operatione varia vitia occurrunt, quae significant periculum tutum et normalis operatio systematis potestatis. The common faults of capacitors in power operation include oil leakage, pauper velit, et incensa fuses. inter eos, the most harmful and frequently occurring faults are capacitor faults caused by heating. The heating caused by capacitor faults can be divided into heating at the busbar connection point and heating at the fuse outside the capacitor, hoc autem magis evenire. Nuper, in the daily operation of 35kV high-voltage parallel capacitor banks, equipment may experience abnormal temperature rise due to aging or high load current due to long operating years and construction and installation processes. Si eiusmodi condiciones abnormes non deprehenduntur et tempestive tractantur, it is easy to develop and expand, ducens damnum in singulos capacitores et etiam coetus explosiones et iniurias. The failure rate is high, directly threatening the safety of 500kV power equipment and the personal safety of operation and maintenance personnel, resulting in significant voltage fluctuations in the power grid, augeri activam et reciprocus potentia damna, reduced capacitor service life, and affecting the normal and stable operation of the power grid. Potestas capacitors maxime adhibentur ad reactivam compensationem potentiarum in systematibus virtutis ad emendandum factorem. In order to ensure its more reliable operation, the industry currently mainly considers connecting internal components of capacitors in series with internal fuses. When a capacitor experiences complete failure of its components due to a weak dielectric, the internal fuse connected in series with the component will act, causing only a portion of the damaged components to be isolated. capacitor operari perget cum levi diminutione in potentia. Hic, capacitor perturbationem in ripa potest neglecta, and the total capacity of the capacitor bank will not be significantly affected by the action of a single fuse. Fusae internae introductio capacitatem partium tuetur, but invisibly increases the number of fault points. In medio potentiae capacitors, the internal fuse is the main heat source, but the volume and diameter of the internal fuse are very small (circiter 135mm longitudinis et 0,45mm diametri), et plerumque occultatur inter componentium capacitorem. Due to current measurement techniques, difficile est accurate et obiective metiri temperaturam superficiei fuae internae sub conditionibus operantibus actualibus.
Temperature monitoring of dry-type capacitors
Hoc tempore, oil immersed capacitors and dry capacitors are commonly used in the high-voltage field. Haec commoda tutelae environmental habet, materia salutaris, humilis sumptus, simplex processus, leve pondus, parva area, auto-medicamentum productum, certius operandi, bonum ignis resistentia, less likely to produce high-pressure gas, possibilitas perurbane ac redegit pericula.
A dry capacitor consists of a capacitor core, casing, sleeve, et alia accessiones. The capacitor core is composed of capacitor components and insulation components. Capacitor components are made by winding thin film insulation media and aluminum foil electrodes with a certain thickness and number of layers, or by depositing a layer of metal on the thin film to form a metallized film. Post components involutus, they are loaded into the component shell, et plura componentia capacita connexa in serie vel parallela ad nucleum totius capacitoris.
Dry capacitors are usually used indoors or underground with poor ventilation conditions, et dissipatio caloris interni capacitors solum inniti in gas. Cum oleo immersis capacitors, calor translatio coefficiens Gas est inferior, so the heat dissipation performance of dry capacitors is poor. These all have adverse effects on the operation of dry capacitors. The operation practice of the power system shows that the failure rate of capacitors is significantly higher from June to September each year than in other months. In quibusdam regionibus, the power industry stipulates that the hottest temperature of the core of a full film capacitor shall not exceed 80 ℃. Cum temperatus excedit 80 ℃, Nulla perficientur polypropylene film (PP film) sicut dielectric decrescet.
Hoc tempore, the temperature field of dry-type capacitors is generally measured using traditional temperature sensors to measure the temperature of the capacitor shell, and then calculate the internal temperature. This results in an error between the temperature value obtained and the distribution of the internal temperature field of the capacitor, which cannot accurately obtain the true temperature at the highest point.
Hoc tempore, the temperature measurement method for the internal protection of power capacitors includes a temperature rise test. tamen, this test only estimates the temperature rise of the internal fuse by measuring the current and resistance of the internal fuse, which has poor accuracy. In the actual process of flowing the internal fuse, the resistance of the internal fuse will change with its temperature. In una manu, it is difficult to ensure its constant flow, and on the other hand, correspondentia inter resistentiam fusae et temperationis internae tantum competit intra quamdam extensionem temperaturae. Infra hoc range, difficile erit accurate consequi eventus. ergo, haec methodus indirecta metiendi caliditatis ortum interni fusi in capaci- toribus limites et humiles accurate. Insuper, the temperature rise of the internal fuse is measured through thermal resistance, but due to the fact that the thermal resistance is much larger in both volume and diameter than the internal fuse, it will have an impact on the actual temperature of the internal fuse during contact measurement, unde pauperis mensurae accuracy. In conspectum hoc, it is necessary to design a simple and feasible measurement device to accurately grasp the temperature of the fuse inside the capacitor under actual operating conditions, fundamentum ad consilium et electionem fuse intra capacitorem, and effectively improve the reliability of the fuse protection action, ensuring that the temperature of the fuse will not cause damage to the internal insulation of the capacitor.
Disadvantages of infrared thermal imager temperature measurement
Hoc tempore, the thermal maintenance of capacitors mainly relies on infrared imaging equipment for inspection. tamen, infrared thermal imaging cannot test the temperature in a closed environment, ac test eventus afficiuntur tempore, tempus, et superficies lenitatem temptationis apparatu. Infrared probatio instrumenti carum est et non potest continue monere temperatura altae intentionis electricum apparatum diu. There is high voltage on the capacitor, and there is strong electromagnetic interference around it, which often leads to false alarms or missed alarms in traditional detectors. ergo, it is necessary to use highly reliable and high-performance temperature sensors to monitor the temperature of capacitors in real time and effectively, in order to avoid equipment burning and power outage accidents.
Insuper, current temperature measurement equipment cannot detect the specific temperature inside the capacitor. Exsistentes capacitors adhibentur in ambitibus cum notabili temperatura mutationes. Prolonged use of capacitors under abnormal temperatures can seriously affect their service life and increase their damage rate.
Capacitor fibra ratio mensurae opticus temperatus
FJINNO’s capacitor fluorescent fibra temperatus opticus systematis mensurae not only solves the problem of traditional temperature sensors being unable to accurately measure the temperature of small internal fuses, but also solves the potential isolation between strong and weak currents, as well as the anti electromagnetic interference problem of data communication. It provides a good solution for comprehensively and accurately grasping the hot spot temperature of the core inside the capacitor.
Fibra temperatus opticus cum magna multitudine instructus est cum terrore software temperatus mensurationis, et vigilantia computatralia colligit notitias temperaturas per fibra optica temperaturas signo demodulatoris per communicationem portum transmissas. Real time display of temperature data at various temperature measurement points, temperature alarm software provides graded monitoring, temperatus curva drawing, temperatus distribution ostentationem, historica curva query, report generation and printing functions;
Fibra optica temperatus sensorem, Magna ratio intelligentis, Distribuit fibra opticus opticus in Sinis
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