Turbomachinery Package Specification
Taurus
60 Compressor Set and Mechanical Drive
Figure 9. Typical Direct-Drive AC Starter Motor and Variable Frequency Drive
M
GAS
TURBINE
VARIABLE
FREQUENCY
DRIVE
RADIO
INTERFERENCE
FILTER
AC POWER
CONNECTION
CLUTCH
ASSEMBLY
AC
MOTOR
LINE REACTOR
Figure 10. Typical Direct-Drive AC Start System
7.2.4 Power
Wiring
The start system, (Figure 10) requires customer-furnished, three-phase AC input.
Additional three-phase AC power wiring is required to connect the VFD to the starter
motor. A start contactor is not required for VFD operation. A customer-furnished fused
disconnect at the VFD input is recommended. Optional motor space heater wiring is
available.
Table 6.
Direct Drive AC Start System Specifications
Variable Frequency Drive
Optional Voltage Input Ranges
380 to 460 VAC, (48 to 62 Hz)
Minimum Input Current
- 380 to 460 VAC Input
525 amps
Voltage Output Range
0 to 460 VAC, (0 to 240 Hz)
Maximum Line Distribution Capacity
1000 kVa
Maximum Fault Current Capacity
30 000 amps,
See Note (a)
Maximum Breakaway Amperage
383 amps
Maximum Breakaway Torque
918 N-m (677 ft-lb)
© 2009 Solar Turbines Incorporated. All rights reserved.
TPS60CSMD/309
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