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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.
M otor type Nominal mains
voltage (UN)
M otor insulation requirement
ABB and 500 Standard insulation system.
Random -wound and
Form -wound
420 500 the insulation system withstands LL=1600 and At=0. For
m ore information please see the ACS800 hardware
manuals.du/dt filters
Du/dt filtering suppresses inverter output voltage spikes
and rapid voltage changes that stress motor insulation.3 ^s,
du/dt filtering not required.
The need for du/dt filtering depends the motor
insulation.7.
Û Peak line line voltage otor terminals.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.
Symbol Explanation
U Nominal mains voltage.
600 690 the motor insulation system withstands LL=2000 and At=0.e.
With du/dt filtering, the insulation system must withstand LL=1600 V.
HXR and motors du/dt filtering with voltages over 500 V.
M otors 500 600 Standard insulation system conjunction with du/dt filtering reinforced insulation. interval during which line line voltage otor term inals changes from 10% 90% of
full voltage range.
At Rise tim i.
Non-ABB 420 Insulation system must withstand LL=1300 V. the
motor does not fulfil the following requirements, the
lifetime the motor might decrease. ith du/dt filtering, the insulation system must
w ithstands LL=1800 V. ith du/dt filtering, the insulation system must withstand LL=1300 V.
HXR and motors
ABB random -wound 380 690 heck otor insulation system with the otor manufacturer.
42 Hardware options FE68404592 REV 3.
500 600 the insulation system withstands LL=1800 u/dt filtering not required.
Additionally, du/dt filtering reduces capacitive leakage
currents and high frequency emission the motor
cable well high frequency losses and bearing
currents the motor.
ABB form -wound 380 690 Standard insulation system.2 ^s, du/dt filtering not
required
