Electrical Cables Cables for 220 kV lines are invariably Paper insulated Compressed oil or compressed gas insulated Rubber insulated Mica insulated Paper insulated Compressed oil or compressed gas insulated Rubber insulated Mica insulated ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables In cables the charging current Lags the voltage by 180° Lags the voltage by 90° Leads the voltage by 180° Leads the voltage by 90° Lags the voltage by 180° Lags the voltage by 90° Leads the voltage by 180° Leads the voltage by 90° ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables The relative permittivity of rubber is Between 5 and 7 Between 2 and 3 None of the listed here Between 8 and 9 Between 5 and 7 Between 2 and 3 None of the listed here Between 8 and 9 ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables In single core cables armouring is not done to Avoid excessive sheath losses Make it flexible Either of the listed here None of the listed here Avoid excessive sheath losses Make it flexible Either of the listed here None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables The thickness of metallic shielding on cables is usually 3 to 5 mm 40 to 60 mm 0.2 to 0.4 mm 0.04 mm 3 to 5 mm 40 to 60 mm 0.2 to 0.4 mm 0.04 mm ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Solid type cables are considered unreliable beyond 66 kV because Insulation may melt due to higher temperature Skin effect dominates on the conductor There is a danger of breakdown of insulation due to the presence of voids Of corona loss between conductor and sheath material Insulation may melt due to higher temperature Skin effect dominates on the conductor There is a danger of breakdown of insulation due to the presence of voids Of corona loss between conductor and sheath material ANSWER DOWNLOAD EXAMIANS APP
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