7
Power Input/Output
Converter
• AC-fed 12- or 24-pulse diode rectifier using externally
mounted phase shifted transformer; no harmonic filter
required to meet IEEE 519 guidelines
• DC bus voltage: 3 x 5,700 Vdc
• Power factor greater than 95% in speed control range
Inverter
• Three-level inverter for motor friendly wave form
• Uses 4 GCT devices for each of three phases
• 3.8 kV output to motor – no output transformer
required
• Inverter power modules water cooled
• Conservative design for expected 20 year MTBF
Input Voltage
Any utility voltage using
separate transformer input
50/60 Hz ±10%
Output Voltage
3,800 Vac
Output Current
2400 A rms
Output Frequency
50-60 Hz
Output Chopping
600 Hz (max)
Drive Effi ciency
98%
Cable Entry
Top or bottom access
A Clean Output Wave
As a result of the three-level PWM control, the output
current waveform is close to a sine wave. Harmonic
currents in the motor are minimized so the heat loss is
negligible and there is very little torque ripple on the
output shaft.
Protective Functions Include
• Inverter overcurrent
• Inverter overvoltage
• Low system voltage
• Motor ground fault
• Motor overload
• Cooling fan abnormal
• Over-temperature
• CPU error
• Water cooling alarm
• Exciter fault
• DC voltage drop
• Motor inverse rotation
• Stall detection
• Ground detection
Frequency Control
• Volt/Hertz Control
• Vector control
• Power factor control for synchronous motors
Output Voltage Modulation
The output switching modulation strategy is dynamically
adjusted based on three speed zones to minimize motor
torque pulsation.
Drive Inputs
• LAN Interface Options: Profibus-DP, DeviceNet,
Modbus RTU, TOSLINE S-20
• Input/Output: 6 Analog I/O, 8 Digital I/O
Power Circuits
Motor Control
Gate Commutated Thyristor
(GCT) with driver board.
Rated 6,000 Volts, 6,000
Amps - the world’s largest
switching device.
TMdrive-XL80 – 15 MVA Frame
Power Rating:
15 MVA, expandable to 30 MVA
Output Voltage:
3.8
kV
Output Frequency:
Rated 50-60 Hz, 50 to 200 Hertz
option with derate above 100 Hz
Dimensions
:
Width 4.8 m; Height: 2.7 m
Motor type:
Synchronous or Induction
XLdrive Series Family Application Guide.indd 7
10/3/2011 3:16:15 PM
