Current
measurement
Overload
characteristic Trip logic
Alarm Ripple
Detection
block
block
Undercurrent
protection for rotor
winding
block
IEC12000016-1-en.vsd
IEC12000016 V1 EN
Figure 219: Representation of the rotor overload protection
Each of these five sub-blocks will be described in the following sections of this
document.
Current measurement
Three phase currents are measured either on the high voltage side (HV) or on the low
voltage side (LV) of the excitation transformer, see Figure220.
1MRK502052-UEN B Section 8
Current protection
467
Technical manual
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