Primary voltage:

200-400 V

Transformer to have low flux--low distortion design

Number of secondary windings:

number of meters to be tested + Wh standard + spares as required

Secondary voltage:

200-400 V

Secondary VA rating:

Max 15 VA per winding

Insulation secondary to secondary:

500V, 50Hz, 60seconds

Primary to secondary ratio accuracy:

+/-0.25%(typicl)

Secondary to secondary ratio accuracy:

less than +/-0.02%

Secondary to secondary phase angle accuracy:

- less than +/- 1 minute

Number of secondary output:

1-100