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PICKUP
PU_ST1_A
PU_ST1_B
PU_ST1_C
PU_ST1
TRST1
PICKUP
PU_ST2
TRST2
TRIP
Comparator
V > Pickup1
Comparator
V > Pickup1
Comparator
V > Pickup1
MaxVoltSelector
Comparator
V > Pickup2
Comparator
V > Pickup2
Comparator
V > Pickup2
Pickup
&
Trip
Output
Logic
Step 1
Pickup
&
Trip
Output
Logic
Step 2
Phase C
Phase B
Phase A
Phase C
Phase B
Phase A
Timer
t2
Voltage Phase
Selector
OpMode2
1 out of 3
2 outof 3
3 out of 3
Time integrator
or Timer t1
Voltage Phase
Selector
OpMode1
1 out of 3
2 outof 3
3 out of 3
TRIP
TRIP
OR
OR
OR
OR
OR
OR
VA or VAB
VB or VBC
VC or VCA
ANSI08000012-3-en.vsd
PICKUP
ANSI08000012 V3 EN
Figure 73:
Schematic design of Two step overvoltage protection (OV2PTOV, 59)
Section 7
1MRK 511 287-UUS A
Voltage protection
180
Technical manual
Содержание REC650 ANSI
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