Trane Starters Engineering Bulletin page 29

Inverter IGBTs.
the capacitor bank into a synthesized output AC voltage that controls both the voltage and
frequency applied to the motor
Figure 21. Front view, remote-mounted AFD
Features
The standard design features for the AFD include:
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Optional Items
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CTV-PRB004-EN
Use the pulse width modulation (pwM) method to convert the DC voltage from
Free standing NEMA 1, ventilated enclosure with a hinged door, tested to a short-circuit current
rating of 65,000 amps. Enclosure locking provisions are standard.
Lockable, door-mounted circuit breaker/shunt trip with an AIC rating of 65,000.
Amps, and enclosure short circuit rating of 65,000 amps standard.
UL/CUL listed as a package.
Simple, front access only design.
460/480/60/3 input power ±10 percent.
575/600/60/3 input power ±10 percent.
Minimum efficiency of 97 percent at rated load and 60 hertz.
Displacement power factor at 0.96 at all loads.
Soft-start, linear acceleration, coast-to-stop.
Adjustable frequency from 38 to 60 hertz.
150 percent instantaneous torque available for improved surge control.
Output line-to-line and line-to-ground short-circuit protection.
Ground fault protection (UL listed).
NEMA 12 enclosure.
100,000 amp enclosure short-circuit current rating (SCCR) with 100,000-amp AIC circuit breaker
available as a design special.
Low-Voltage Starter Types
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