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The Kinetics model SVRS-CR is a heavy
industrial, solid state, limited operating
range, closed loop regulation, SCR
excitation rectifier. The model SVRS-CR
is configured with the DC feedback
loop closed on the rectifier output
current. The excitation current from
the regulated rectifier to the motor
field can be adjusted while the motor
is running and synchronized via an
operator’s control potentiometer.
Holding the excitation current constant,
at a set point, permits the voltage
to fluctuate with changes in field
resistance associated with motor loading
and field winding temperature. The
highly reliable Kinetics regulator
will hold the DC current within +/-
1% of the desired DC output. Output
current is set by an infinitely variable
adjustment potentiometer. A local
or remote output mode of operation
selection switch can be added as an
option feature for applications where
adjustment from a remote location
is desired.
A standard unit is designed with
current capacity from 110% to 80%
of the DC voltage rating. Below 80%
volts, the current capacity is reduced
directly proportional to voltage.
Extended lower range units and units
with field forcing capacity are available
upon request.
Units are available in the 500 watts
to 2,000 Kw capacity range. As an
integrated manufacturer Kinetics has
the manufacturing flexibility to offer
systems in single phase or three phase
AC input configurations.
A standard SVRS-CR system would include
an industrial freestanding enclosure,
input circuit breaker or line fusing
for inputs above 600 volts, isolation
transformer with copper conductor,
conservatively sized SCR regulator,
DC surge suppression for highly inductive
loads, DC ammeter & voltmeter
and semi-conductor fuse monitoring
indication lights. For applications
where the existing enclosure will
be re-used or an enclosure provided
by "other", Kinetics offers
open panel chassis and cell-in-cell
packaging.
The SVR-CR exciter can be provided
with Kinetics’ solid state field
application system, Synchapp-SS and
Kinetics’ digital logic controller
and annunciation module, KinetSync-SR
for brush type motors. The KinetSync-NB
is available for brushless motors.
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