Phase PHASEPERFECT PT007, Руководство по эксплуатации и установке

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V1.0
MOTOR STARTING/OVERLOAD CAPABILITIES
All Phase Perfect digital phase convertors are rated to across the line start motors up to the
nameplate horsepower rating of the convertor except for PT060 and PT075. Motor starting
capability is approximately equivalent to an across the line starter using a Class 10 thermal
overload. This capability is accomplished using a Class 4 thermal overload characteristic
with a proprietary algorithm that limits inrush current on the manufactured leg during startup
to prevent nuisance tripping. During startup voltage is folded back when current exceeds
400% of FLA of the converter. Below 400% of FLA a Class 4 thermal overload
characteristic and thermal measurements on the IGBTs controls overload tripout.
1.0
10.0
100.0
1000.0
10000.0
0 50 100 150 200
Ti
m
e
(
sec
)
Current (A)
Overcurrent/Motor Starting Sourcing Limit
PT007 PT010 PT020
1.0
10.0
100.0
1000.0
10000.0
0 100 200 300 400
Ti
m
e
(
sec
)
Current (A)
Overcurrent/Motor Starting Sourcing Limit
PT030 PT040