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ABB REL650 - Page 273

ABB REL650
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Voltage
Time
HystAbs1
START
TRIP
U1<
START
TRIP
t
tIReset1
Time
Time
Integrator
t
Frozen Timer
Linearly
decreased
Instantaneous
Measured
Voltage
tIReset1
IEC05000010-4-en.vsd
IEC05000010 V4 EN-US
Figure 128: Voltage profile not causing a reset of the START signal for step 1, and inverse time delay at
different reset types
1MRK 506 382-UEN A Section 8
Voltage protection
Line distance protection REL650 2.2 IEC 267
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