PPA5xx/15xx user manual
7-4
Three Phase Three Wattmeter - simulated neutral
Three Phase Three Wattmeter
On a multi phase instrument, all the phases usually use
the same input control data – internal/external, scaling
factor etc. It is possible to select ‘independent’ so that the
phases can be set up differently. This is useful if different
scaling factors are required for external shunts or if one
phase is using internal shunt when others are external.