Re: how to use a current transformer

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

Original poster: davep <davep-at-quik-dot-com> 


>The "burden" is proportional to the resistance (the current is fixed, by 
>the turns ratio),

         Sort ot.
         Its still a transformer, albeit with 'unusual'
         turns ration.  Current will depend, to some extent,
         on the resistor applied.  (It _expects_ the
         relatively low 'resistance' of 5A meter movement.

>so smaller is better.  Diminishing returns when the meter

>can't accurately read the tiny voltage.

         One 'trick' is to use a resistor such that the
         voltmeter (??) to be used reads 'direct' (or with
         decimal shift.) in amps on the sense line.

         best
         dwp

.