ABB Relion 670 series - Page 502

Voltage
Time
HystAbs1
PICKUP
TRIP
PICKUP
PICKUP 1
PICKUP
TRIP
t
tIReset1
Time
Time
Integrator
t
Frozen Timer
Linearly
decreased
Instantaneous
Measured Voltage
tIReset1
ANSI05000011-2-en.vsd
ANSI05000011 V2 EN
Figure 250: Voltage profile causing a reset of the pickup signal for step 1, and inverse time delay at different
reset types
Definite timer delay
Section 8 1MRK505222-UUS C
Voltage protection
496
Technical reference manual