+2 votes
in Mathematics by kratos

The capacitances per kilometer of a 3-phase cable are 0.63 µF between the three cores bunched and the sheath and 0.37 µF between one core and the other two connected to sheath. Calculate the charging current taken by eight kilometres of this cable when connected to a 3-phase, 50-Hz, 6,600-V supply.

1 Answer

+3 votes
by kratos
 
Best answer

As shown in 0.63 = 3CS

∴ CS = 0.21 µ F/km

From the second test,

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