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Siemens SINAMICS G130 Panduan Petunjuk Pengoperasian
General
Using a motor reactor and dv/dt filter to limit the voltage gradient and transients
IGBT converter switching frequencies result in high voltage gradients (dv/dt) at the converter
output. If long motor cables are used, this leads to an additional current load on the
converter due to capacitive charge/discharge currents. The high voltage gradients, and the
resulting transients at the motor terminals, cause the motors' electrical winding load to
increase as compared with direct on-line operation. In conjunction with the connected cable
capacitances, the motor reactors with their adapted inductances reduce the capacitive
charge/discharge currents in the motor cables and, as a function of these motor cables, limit
the voltage gradient (dv/dt) and the transients Û
Figure 2-1
14
Using a motor reactor and dv/dt filter to limit the voltage gradient and transients
at the motor terminals.
LL
Operating Instructions, 04/2014, A5E00409660A
Motor reactors