Which temperature monitoring system is the best for the high-voltage electrical equipment busbar to use

Sensore di temperatura in fibra ottica, Sistema di monitoraggio intelligente, Produttore distribuito di fibre ottiche in Cina

Temperature monitoring system for electrical equipment

Online temperature monitoring system for high-voltage electrical equipment busbar
The temperature monitoring system of electrical equipment must have good insulation, Elevata precisione, fast response ability, and strong anti-interference ability. Compared to traditional temperature measurement methods such as infrared thermometers for switchgear, the disadvantage is poor temperature stability and susceptibility to vibration and magnetic field effects.

Fluorescent fiber optic temperature sensors have obvious advantages such as resistance to electromagnetic interference, good stability, alta sensibilità, miniaturizzazione, peso leggero, and contact temperature measurement. fluorescent fiber optic temperature sensors for online monitoring of electrical equipment.

The necessity of installing a temperature monitoring system for high-voltage switchgear
During the long-term operation of switchgear, the high-voltage switch contacts, busbar overlap points, and other parts in the switchgear often have excessive contact resistance due to improper installation or aging, resulting in abnormal temperature in the main circuit. If this change is not known in a timely manner and continues to operate, it will further intensify heating and oxidation, and create a vicious cycle, leading to phenomena such as melting and falling off of the contact finger, burning of the contact head, and deterioration of adjacent insulation materials. Finalmente, it may even catch fire, causing accidents, and even serious accidents such as breakdown and explosion. For a long time, due to the high potential environment of the main circuit of high-voltage switchgear (mainly referring to the contact arms, contacts, and busbars), various problems such as high-voltage insulation and electrical isolation under high and low potential cannot be solved under direct measurement conditions, making online monitoring of circuit breaker temperature a difficult problem.

Temperature measurement principle of fluorescent fiber optic switchgear
La misurazione della temperatura in fibra ottica fluorescente appartiene al metodo di misurazione della temperatura a contatto. Questo dispositivo consente di misurare la temperatura in base alla durata della fluorescenza. La sostanza fluorescente applicata all'estremità di misurazione della temperatura remota emetterà l'energia di fluorescenza corrispondente quando stimolata da specifiche lunghezze d'onda della luce. Dopo aver rimosso l'eccitazione di specifiche lunghezze d'onda della luce, Il bagliore residuo della fluorescenza inizia a decadere. La durata dell'afterglow della fluorescenza dipende dalla temperatura della sostanza fluorescente situata sulla sonda di misurazione della temperatura, Cioè, la temperatura della sostanza da misurare. La selezione dell'eccitazione della luce a lunghezza d'onda specifica viene abbinata alla sostanza fluorescente selezionata, e la lunghezza d'onda di eccitazione più efficace delle diverse sostanze fluorescenti è diversa.

Characteristics of online monitoring system for temperature of high-voltage switchgear busbar
(1) The fiber optic temperature measurement device of the busbar must have strong resistance to strong electromagnetic interference inside the switchgear;

(2) The fiber optic temperature measurement system must have a sufficiently short reaction time, which determines that the hardware and software used in the system design must have a relatively fast operating speed;

(3) During the online monitoring of the switchgear, it is necessary to maintain the normal operation and performance of the switchgear.

The online monitoring system for fluorescent fiber optic temperature measurement of switchgear, the high-voltage busbar contact temperature measurement system, and the busbar contact components are equipped with temperature sensors. The fluorescent fiber optic temperature sensor is connected to the temperature controller to achieve the purpose of monitoring the temperature of the switchgear busbar.