特点

25-500 amps, 500Vac max

Three or four wire loads

Selectable control and firing modes

Resistive and inductive loads
The TC3000 SCR assembly is a general purpose three phase power controller for
all constant resistance or inductive loads up to 500A/500Vac. The TC3000 fires
evenly on all phases to match the load to the generator supply. Three wire wye
or delta, four wire wye with neutral and six-wire inside delta load
configurations can be controlled. Resistive load firing modes include logic
firing for action as a solid state contactor, single cycle for special
applications, fast cycle for quick acting heaters and slow cycle for large
loads. Phase angle firing is available for inductive loads. Inputs are logic or analog. The TC3000 is phase rotation
insensitive. The unit is shrouded in a protective cover with commissioning and
diagnostic points available on the front. Protective measures include built-in
high speed fuses with optional fuse-fail microswitches, snubbers and varistors
and SCR quenching action on any of several operational alarm conditions. Cooling
at 100A and up is by fans, with over-temperature shutdowns. It may be used with
the model 260 Diagnostic Unit.