Frekvenční měniče Katalogy, manuály (EN+CZ)

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Vydal: ABB s.r.o, ELSYNN Autor: ABB ELSYnn

Strana 816 z 825







Poznámky redaktora
m V The motor protection and supervision functions are suitable for converter operation. Synchronous motor 9 MW, 1500 rpm 17 . • The motor insulation suitable with­ stand the voltage waveforms including surges and du/dt phenomena which may occur practice. • Full account taken the additional losses resulting from the harmonic content voltage and current. • Motor and converter voltages are chosen such that overall drive efficiency and cable costs are optimum. Where any doubt exists, torsional analysis the shaft train recommended.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 excitation system designed to excite the machine any speed and at standstill. • The motor reactances are matched to converter operation. 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