I want to measure the line voltages in a three phase system, can I connect the voltage measurement between the two phases? Does it mean short circuiting the two phases?

I want to know whether voltage measurement short circuits or not when connected between two phases to measure line voltage.

Answer 1

[charan]

Hi Rishabh,

Connecting a voltmeter between two phases to measure the line-to-line voltage does not create a short circuit between the phases. The voltmeter has a very high input impedance, so it draws nearly zero current from the system and does not cause a short circuit.