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With du/dt filtering, the insulation system must withstand LL=1600 V.
The need for du/dt filtering depends the motor
insulation.
At Rise tim i.
ABB form -wound 380 690 Standard insulation system.
Û Peak line line voltage otor terminals.du/dt filters
Du/dt filtering suppresses inverter output voltage spikes
and rapid voltage changes that stress motor insulation.
M otors 500 600 Standard insulation system conjunction with du/dt filtering reinforced insulation.
Non-ABB 420 Insulation system must withstand LL=1300 V.
600 690 the motor insulation system withstands LL=2000 and At=0.7.3 ^s,
du/dt filtering not required.
Random -wound and
Form -wound
420 500 the insulation system withstands LL=1600 and At=0.
HXR and motors du/dt filtering with voltages over 500 V.
500 600 the insulation system withstands LL=1800 u/dt filtering not required.2009
. For information the construction of
Filter selection table for ACS800
the motor insulation, consult the manufacturer.
600 690 Reinforced insulation system conjunction with du/dt filtering.
M otor type Nominal mains
voltage (UN)
M otor insulation requirement
ABB and 500 Standard insulation system.
Insulated N-end (non-driven end) bearings and or
com ode filters are also required for motor
bearing currents with motors bigger than 100 kW.e.
Additionally, du/dt filtering reduces capacitive leakage
currents and high frequency emission the motor
cable well high frequency losses and bearing
currents the motor. the
motor does not fulfil the following requirements, the
lifetime the motor might decrease. For
m ore information please see the ACS800 hardware
manuals.2 ^s, du/dt filtering not
required.
HXR and motors
ABB random -wound 380 690 heck otor insulation system with the otor manufacturer.
Symbol Explanation
U Nominal mains voltage. ith du/dt filtering, the insulation system must
w ithstands LL=1800 V.
42 Hardware options FE68404592 REV 3. interval during which line line voltage otor term inals changes from 10% 90% of
full voltage range. ith du/dt filtering, the insulation system must withstand LL=1300 V
