In India IS specifications are followed which has BS
standard as base.
Normally AC 50 V - 1000V volts are considered LT .
1kV to 66 kV is considered HT and
Above 66 kV is EHT
Voltages below 50 volts is considered Extra low tension
It depands on the system. 433V (Phase to Phase) from
transformer 11000/433V is LT voltage and 11000V(phase to
phase) from 33KV/11KV to transformer 11000/433V is HT
voltage whereas 33KV is EHT voltage level.
how to find the ballast lost from the actual wattage? for
example i am going to buy decorative type 2x36watts
fluorescent light fitting for this lamp how to find the
ballast lost? is there any formula?