• The motor reactances are matched to
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.
• 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.
The excitation system designed to
excite the machine any speed and at
standstill.
• Motor and converter voltages are chosen
such that overall drive efficiency and
cable costs are optimum.
Synchronous motor
9 MW, 1500 rpm
17
.
Where any doubt exists, torsional
analysis the shaft train recommended.
• Full account taken the additional
losses resulting from the harmonic
content voltage and current.
Noise levels
which are not
necessarily the
same an
equivalent
conventional
AC motor are
checked in
relation the
customer's
specification.
m
V
The motor protection and supervision
functions are suitable for converter
operation
