PICKUP
PU_ST1_A
PU_ST1_B
PU_ST1_C
TRST1
PICKUP
PU_ST2
TRST2
TRIP
MinVoltSelector
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
Time integrator
t1
Voltage Phase
Selector
OpMode1
1 out of 3
2 out of 3
3 out of 3
TRIP
TRIP
OR
OR
OR
OR
OR
OR
PICKUP
VA or VAB
VB or VBC
VC or VCA
Comparator
V < Pickup1
1 out of 3
2 out of 3
3 out of 3
PU_ST1
ANSI08000016-2-en.vsd
Comparator
V < Pickup1
Comparator
V < Pickup1
Comparator
V < Pickup2
Comparator
V < Pickup2
Comparator
V < Pickup2
ANSI08000016 V2 EN
Figure 51:
Schematic design of Two step undervoltage protection UV2PTUV (27)
Section 8
1MRK 505 277-UUS C
Voltage protection
128
Technical Manual
Summary of Contents for REB650
Page 1: ...Relion 650 series Busbar protection REB650 ANSI Technical Manual ...
Page 2: ......
Page 34: ...28 ...
Page 52: ...46 ...
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Page 437: ...IEC12000585 V1 EN 1MRK 505 277 UUS C Section 16 IED physical connections 431 Technical Manual ...
Page 438: ...IEC12000586 V1 EN Section 16 1MRK 505 277 UUS C IED physical connections 432 Technical Manual ...
Page 439: ...IEC12000587 V1 EN 1MRK 505 277 UUS C Section 16 IED physical connections 433 Technical Manual ...
Page 440: ...IEC12000588 V1 EN Section 16 1MRK 505 277 UUS C IED physical connections 434 Technical Manual ...
Page 441: ...IEC12000589 V1 EN 1MRK 505 277 UUS C Section 16 IED physical connections 435 Technical Manual ...
Page 442: ...IEC12000590 V1 EN Section 16 1MRK 505 277 UUS C IED physical connections 436 Technical Manual ...
Page 443: ...IEC12000591 V1 EN 1MRK 505 277 UUS C Section 16 IED physical connections 437 Technical Manual ...
Page 444: ...IEC12000592 V1 EN Section 16 1MRK 505 277 UUS C IED physical connections 438 Technical Manual ...
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