BECKWITH ELECTRIC M?3311A, Instruction Book

Page: 369 / 450

A–36
M‑3311A Instruction Book
System Setpoints and Settings (Cont.'d)
87 – Phase Differential Current
87T
o
Disable
o
Enable
Pickup: _____ 0.10 – 1.00 (PU)
Percent Slope #1: _____ 5 – 100 (%)
Percent Slope #2: _____ 5 – 200 (%)
Slope Break Point: _____ 1.0 – 4.0 (PU)
Even Harmonics Restraint
o
Disable
o
Enable
o
Enable w/cross average
(2nd and 4th) Restraint: _____ 5 – 50 (%)
5th Harmonic Restraint
o
Disable
o
Enable
o
Enable w/cross average
Restraint: _____ 5 – 50 (%)
Pickup: _____ 0.10 – 2.00 (PU)
I/O Selection:
Outputs
o
#1
o
#2
o
#3
o
#4
o
#5
o
#6
o
#7
o
#8
o
#9
o
#10
o
#11
o
#12
o
#13
o
#14
o
#15
o
#16
Blocking Inputs
o
#1
o
#2
o
#3
o
#4
o
#5
o
#6
o
#7
o
#8
o
#9
o
#10
o
#11
o
#12
o
#13
o
#14
o
#15
o
#16
o
#17
o
#18
87H
o
Disable
o
Enable
Pickup: _____ 5.0 – 20.0 (PU)
Time Delay: _____ 1 – 8160 (Cycles)
I/O Selection:
Outputs
o
#1
o
#2
o
#3
o
#4
o
#5
o
#6
o
#7
o
#8
o
#9
o
#10
o
#11
o
#12
o
#13
o
#14
o
#15
o
#16
Blocking Inputs
o
#1
o
#2
o
#3
o
#4
o
#5
o
#6
o
#7
o
#8
o
#9
o
#10
o
#11
o
#12
o
#13
o
#14
o
#15
o
#16
o
#17
o
#18
87 CT Tap
Winding 1 CT Tap: _____ 1.00 – 100.00
Winding 2 CT Tap: _____ 1.00 – 100.00
Winding 3 CT Tap: _____ 1.00 – 100.00
Winding 4 CT Tap: _____ 1.00 – 100.00 (Not available in Two or Three Winding applications)
Figure A‑4 System Setpoints and Settings (page 26 of 39)