• The motor reactances are matched to
converter operation.
The excitation system designed to
excite the machine any speed and at
standstill.
• Full account taken the additional
losses resulting from the harmonic
content voltage and current.
Where any doubt exists, torsional
analysis the shaft train recommended.
Synchronous motor
9 MW, 1500 rpm
17
.
m
V
The motor protection and supervision
functions are suitable for converter
operation.Standard converter types
Motor design criteria
Standard versions1)
Smallest size Largest size2)
Air-cooled Water-cooled Air-cooled Water-cooled
Type designation E0806-211N4 W1212-091N4 A1212-171N4 W2x06-573N4
Input voltage [V] 2100 2x940 2x1750 2x5710
No.
Noise levels
which are not
necessarily the
same an
equivalent
conventional
AC motor are
checked in
relation the
customer's
specification.
• The motor insulation suitable with
stand the voltage waveforms including
surges and du/dt phenomena which may
occur practice. thyristors series 3
AC current [A] 775 1880 1410 1610
Frequency (up to) [Hz] 60
Motor power [kW] 2100 4660 6330 23520
1) Data for specified conditions regarding
• power supply
• cooling
• overload
• without redundancy
• suitable voltage and commutation reactance the
motor
2) Higher power ratings request
Design criteria for
large converter-fed motors
In order guarantee the specified output
and reliable operation large adjustable
speed motor designed for supply a
converter, ABB pays special attention the
following:
• The motor cooling system remains fully
effective throughout the specified range
of speeds the specified load.
• Motor and converter voltages are chosen
such that overall drive efficiency and
cable costs are optimum
