Steel poles for transmission lines need protection against

Related MCQs

• Wooden poles for supporting transmission lines are used for voltages upto
• Steel poles used for telephone lines are generally
• The advantage of dc transmission system over ac transmission system is
• The main advantage of ac transmission system over dc transmission system is
• Total load transmitted through a 3-phase transmission line is 10,000 kW at 0.8 power factor lagging. The I2 R losses are 900 kW. The efficiency of transmission line is
• Neglecting losses in a transmission system, if the voltage is doubled for the same power transmission, the weight of conductor material required will be
• Conductors for high voltage transmission lines are suspended from towers
• The disadvantage of transmission lines as compared to cables is
• The minimum clearance of low and medium transmission lines from ground across streets is
• The most economic voltage for transmitting given power over a known distance by overhead transmission lines is approximately