Why ACSR conductor is used for overhead lines?

1 Answer

Answer :

It has high tensile strength 

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Description : A minimum clearance of 6.3 m to ground is required for overhead lines when operating voltages are :  (A) less than 66 kV (B) lie between 66 kV and 110 kV (C) more than 165 kV (D) lie between 110 kV and 165 kV

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Last Answer : Overhead lines for power supply to tramcars are at a minimum height of 10 m.

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Last Answer : Aluminum conductor steel rainforce

Last Answer : Overhead system can be designed for operation up to 400 kV.

Description : The function of steel wire in ACSR conductors is (A) To take care of surges. (B) To reduce corona. (C) To reduce inductance. (D) To provide additional mechanical strength

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Description : what is ACSR ?

Last Answer : Aluminium Conductor Steel Reinforced

Last Answer : When a conductor carries more current on the surface as compared to core, it is due to skin effect.

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Last Answer : Yes aluminium is a conductor and it is a good conductor of electricity. But copper have better conductivity as compare to aluminium.

Last Answer : Series capacitors on transmission lines are of little use when the load VAR requirement is small.

Description : Differentiate between overhead transmission and underground transmission.

Last Answer : Points Overhead line  Underground cable Capital cost  Less More Erecting cost  Less More Time require for completion of work Less More Flexibility More ... Space consumed Space consumed  No space consumed Appearance Not good  Very good 

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Last Answer : Reason: Underground service connection is given by underground cable. This cable is costly than bare conductor. Sometimes cable trench is required for cable laying, which requires additional cost. So underground service connections are costly than overhead service connection.

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Last Answer : Service Connection:- It is the input conductor or wire which is carried out from supply company (authorities) pole to consumers' main board or premises. Types of overhead service ...  1. Overhead service connection with Bare conductor 2. Overhead service connection with weather proof cable  

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Description : What is difference between Conductor and insulator ?

Last Answer : Conductor is a material that offers no resistance to the flow of current, while an insulator is a material that offers total resistance to the flows of current, It doesn't allowed any flows of current.

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Last Answer : The thickness of insulation provided on the conductor depends on the magnitude of voltage on the conductor.

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Last Answer : If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.4 ohm.

Description : The resistance of a few meters of wire conductor in closed electrical circuit is?

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