The units are assembled with high quality materials, and the components are
manufactured to relevant specifications.
MAIN TRANSFORMERS:
The transformers are of class 'A' insulation and conform to IS 2026 in general.
The laminations used are C.R.G.O Silicon steel, low loss type. The wound coils
are impregnated with oven baked varnish.
I.P.T:
For high current units the transformers secondary is generally double wye. An I.
P. T. wound with copper, is provided on its secondary, to extend the conduction
period of windings and diodes.
Silicon Rectifier:
The Rectifier is assembled by using silicon diodes, mounted on heat sinks and
connected in full wave circuits. Individual R.C. components are used for hole
storage protection. The diode assembly is always selected to have at least 40%
extra rating above the maximum output current.
Regulator:
In order to facilitate voltage variation from zero onwards "VARIVOLT" variable
auto transformers are used as independent units, or some times, accommodated in
the transformer tank. Motorization is provided as an optional feature.
he DC output is continuously adjustable from zero to full rated value, from no
load to full rated current, over the input range as described. All 3 phase units
have low ripple of less than 5% and are suitable for all kinds of metal
finishing.
