What are the filling materials for power capacitors?
answer:
1, aeration: mainly N gas or SF6 and other gases. Disadvantages: The airtightness is difficult to control, the quality of imported products is good, the domestic products are generally not available, and the price is high.
Advantages: There is no fire. 2. Black plastic: The filler is modified asphalt or epoxy resin. Disadvantages: heat dissipation is not good. Advantages: the process of use
There will be no leakage in the line, no fire on the line. 3, microcrystalline wax: filled with microcrystalline wax or petroleum jelly often called semi-dry, at room temperature is solid, in
It is a liquid at high temperatures. Disadvantages: Easy to leak during on-site operation, explosions and fires in extreme cases. Advantages: lower cost, lower heat dissipation
it is good. 4, oil immersion: the filling is rapeseed oil, castor oil and so on. Disadvantages: more leakage during production and operation, explosion and fire in extreme cases
And so on. Advantages: low cost and good heat dissipation.
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