Re: higher current ammeter sources

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Ed Phillips <evp-at-pacbell-dot-net> 

Tesla list wrote:
 >
 > Original poster: davep-at-quik-dot-com
 >
 >  >>        Shunts can be used on AC, as an alternative to current
 >  >> transformers.
 >  >
 >  >>      Yes, shunts are commonly used ON DC, they work fine on AC, also...
 >
 >  >      Of course, as long as they are calibrated for the frequency on which
 >  > they're to be used or if that frequency is low enough that winding
 >  > reactance doesn't count.
 >         Shunts can be crafted so as to have no 'windings',
 >         hence, minimal inductance.
 >         Winding inductance of current transformers needs to be
 >         considered, expecially with complex waveforms...
 >
 >         best
 >          dwp

	I meant the inductance of the METER coil; high-current shunts will have
negligible reactance at power line frequencies.

Ed