why is the core of the underground cable is spiral in shape
instead of straight?

Answer Posted / phani

If it is spiral , the electrical losses are less ( i don't
know exact losses but i can confirm that it is not for easy
to rolling)

Is This Answer Correct ?    2 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is draiv work

1449


What is safety of Ht panel

1185


would the same effect be achieved by reversing the connection to one winding of the induction motor 3-phase?

1340


In diesel generator how AVR get voltage to excitation. And basic diagram DG EXCITATION CIRCUIT.

2786


how to setting Load amps tripping time and extra settings for load Transformer protection relay with RMU panel using C&S model relay..?

596






Define maximum demand?

656


What is size 00, 01, 1 etc., in HRC fuse types?

1853


Define thermal resistance in the context of power amplifier.

610


how can i get an electrical c-certificate?

1800


why the protection turbo generators is most complex?

1515


WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

1345


what maximum range of star & delta in hp or kw ?

1280


In HVDC LINE RECTIFIER CONTROL ON CONSTANT CURRENT AND INVERTER CONTROL CONSTANT EXITATION ANGLE CONTROL BUT HOW INVERTER CONTROL CONSTANT CURRENT?

1523


how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.

1748


If I want to lift the water at a height 50m from ground level through two inch(diameter) metal pipe then what is the capacity of motor pump is required? is it possible in single phase supply or not?

1468