Specifications

116
Tristab-Y
useful with unbalanced three-phase
loads or single-phase loads.
For proper operation, the presence of
the neutral wire is necessary. There is
the possibility of choosing between two
input voltage ranges according to the
nominal power required (see table).
The operator panel includes a digital
voltmeter which provides information on
the voltage of each phase and the
linked voltages. All models (up to
60kVA) are provided with wheels for an
easier positioning and handling.
TRISTAB-Y series includes several
voltage stabilizers of electromechanical
type with electronic control from 5 to
300kVA. They provide a perfect three-
phase output voltage completely
independent from any input voltage
variation within the accepted voltage
range.
The stabilisation of the output voltage
is not affected neither by eventual
harmonic distortion
present in the mains nor by the value
and load power factor; the output
voltage distortion is very low (<0,2%);
the total efficiency is very high. In the
"Y" version the stabilising effect is
obtained independently on each phase.
This solution is therefore particularly