ABB REG670 Commissioning Manual page 154

Section 13
Testing functionality by secondary injection
148
Table 19: Test points for phase-to-phase loops A-B (Ohm/Loop)
Test point Reach Set value
1 X X1
R 0
2 X X1
R R1
3 X 0.8 x X1
R 0.8 x R1
4 X 0.5 x X1
R 0.5 x R1
5 X 0.85 x RFPPZx x tan (LdAngle)
R 0.85 x RFPPZx
6 X RLdFwd x tan (LdAngle)
R RLdFwd
7 X 0
R RLdFw
8 X –0.2143 x RFPPZx/2
R 0.8 x RFPPZx/2
9 X –0.4 x RLdFwd x tan(ArgDir=20°)
R 0.4 x RLdFwd
10 X 0.5 x X1
R –0.23 x X1
11 X 0.8 x X1
R –0.37 x X1
12 X 0.5 x X1
R 0.5 x R1
13 X 0
R 0.5 x RFPPZx
Table 19 is used in conjunction with figure 42.
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
set
set
set
set
+ RFPPZx/2
set
set
+ RFPPZx/2
set
set
set
set
set
set
set
1MRK 502 073-UUS A
Comments
LdAngle = angle for the maximal load
transfer
Exact: 0.8 x RFPPZx/2 (ArgDir=20°)
Exact –0.5 x R1 x tan(ArgNegRes=30°)
set
Exact –0.5 x R1 x tan(ArgNegRes=30°)
set
Commissioning manual