Ce este testul SFRA?

Testul de analiză a răspunsului frecvențial (SFRA) este o metodă de măsurare importantă utilizată pentru a evalua integritatea mecanică și electrică a transformatoarelor de putere. Testul evaluează integritatea mecanică a miezurilor, a înfășurărilor și a cadrului de presare al transformatoarelor prin măsurarea funcției de transfer de tensiune pe o gamă largă de frecvențe. Fiecare rețea electrică are o răspuns frecvențial unic, cunoscut sub numele de amprentă a răspunsului frecvențial.

Cum se analizează uleiul de transformator?

Printre testele pentru testarea uleiului de izolatie se numara testul tensiunii de scindare (BDV), testul continutului de apa, testul de aciditate, testul factorului de disipare dielectrica, testul tensiunii interfaciale, testul punctului de aprindere, testul de vigoarea, testul densitatii relative, analiza furanului, analiza gazelor dizolvate (DGA) etc.

Analysis of Abnormal Partial Discharge of 35 kV XLPE Cable

when it comes to the utilization of 35 kV XLPE cables, the issue of abnormal partial discharge poses a significant challenge. Power outages resulting from this problem accelerate cable damage, leading to economic losses for industry development and hindering sustainable industry growth. Consequently, when analyzing partial discharge issues with 35 kV XLPE cables

Is VLF test destructive ?

VLF testing is considered more suitable for assessing the withstand capability and insulation quality of modern cables with polymer-based insulation. It provides a more realistic and less damaging test method compared to DC testing. The VLF testing method allows for a more accurate evaluation of the cable’s condition and remaining life expectancy.

The Application and Advantages of Battery charger discharger: Solving Practical Pain Points in Data Center Provider

Battery Charger Discharger Introduce A battery charger discharger is a device or system designed to charge and discharge batteries. It is used to manage the charging and discharging process of batteries, ensuring their optimal performance and longevity. It is a comprehensive all-in-one machine which can proceed the battery capacity test, battery charging and battery activating . It […]

What is the difference between VLF and hipot ?

What is the difference between VLF and hipot?
VLF Testing is a AC hipot tester that perform the withstand and diagnostic testing for test object at very low frequency 0.1 Hz to 0.01 Hz . It is applied for HV/MV cable, motor and generator and other high capacitive loads.

Testatorm de gradul de vid al comutatorului de vid

Testorul de gradul de vid utilizează o bobină de excitație inovatoare și folosește metoda de descărcare cu magnetron pentru a evalua gradul de vid al camerei de stingere a arcului, fără a fi necesară demontarea dispozitivului.

What is the transformer temperature rising test ?

When the temperature of transformer accessories exceeds its allowable range for a long time, even the transformer oil temperature is 10℃ higher than normal or the temperature is still rising, the insulation of transformer will be easily damaged and broken down by high voltage,causing failure or accidents .  In order to ensure the normal work and service life-span of transformer, it is very important to evaluate the transformer heat up.  Let’s discuss the transformer testing for temperature rising in the article .

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