Voltage
Time
HystAbs1
START
TRIP
START
U1<
START
TRIP
t
tIReset1
Time
Time
Integrator
t
Frozen Timer
Linearly decreased
Instantaneous
Measured Voltage
tIReset1
IEC05000011-en-3.vsd
IEC05000011 V3 EN
Figure 228:
Voltage profile causing a reset of the START signal for step 1, and inverse time delay at different
reset types
Definite timer delay
When definite time delay is selected the function will operate as shown in figure
Detailed information about individual stage reset/operation behavior is shown in
figure
and figure
respectively. Note that by setting
tResetn
=
0.0s
,
instantaneous reset of the definite time delayed stage is ensured.
Section 9
1MRK502052-UEN B
Voltage protection
486
Technical manual
Summary of Contents for Relion REG670
Page 1: ...Relion 670 series Generator protection REG670 2 0 IEC Technical manual ...
Page 2: ......
Page 44: ...38 ...
Page 58: ...52 ...
Page 80: ...74 ...
Page 106: ...100 ...
Page 482: ...476 ...
Page 548: ...542 ...
Page 570: ...564 ...
Page 600: ...594 ...
Page 608: ...602 ...
Page 630: ...624 ...
Page 862: ...856 ...
Page 1094: ...1088 ...
Page 1226: ...1220 ...
Page 1250: ...1244 ...
Page 1297: ...1291 ...