What are the types of insulation used in current transformers? I. Paper-oil insulation is used in models CA up to 800 kV and model LB up to 362 kV...
What are the types of insulation used in current transformers?
I. Paper-oil insulation is used in models CA up to 800 kV and model LB up to 362 kV.
II. Gas insulation is used in model CG up to 550 kV.
III. Dry insulation is used in model CX up to 72.5 kV.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I, II, and III are correct.
I. Paper-oil insulation is used in models CA up to 800 kV and model LB up to 362 kV.
II. Gas insulation is used in model CG up to 550 kV.
III. Dry insulation is used in model CX up to 72.5 kV.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I, II, and III are correct.
💡 1 Resposta
Ed 
A resposta correta é a alternativa "d) I, II e III estão corretas". Os transformadores de corrente utilizam diferentes tipos de isolamento, dependendo do modelo e da tensão. O isolamento de papel-óleo é usado em modelos CA de até 800 kV e modelo LB de até 362 kV. O isolamento a gás é usado no modelo CG de até 550 kV. O isolamento seco é usado no modelo CX de até 72,5 kV.
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