Summary Table Of G Hi-Touch Protections - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

Summary table of G Hi-Touch protections

ABB ANSI Threshold
(7)
I21 = 0.6...10 In; Step = 0.1 In
S2(V)
51V Ul2 = 0.2...1 Un; Step = 0.01 Un
(Step)
Ks2 = 0.1...1; Step = 0.01
I21 = 0.6...10 In; Step = 0.1 In
S2(V) Ul2 = 0.2...1 Un; Step = 0.01 Un
51V
(Linear) Uh2 = 0.2...1 Un; Step = 0.01 Un
Ks2 = 0.1...1; Step = 0.01
Q24 = -1...-0.1 Sn; Step = 0.001 Sn
Q25 = -1...-0.1 Sn; Step = 0.001 Sn
RQ2 40/32R
(4)
Kq = -2...2; Step = 0.01;
Kq2 = -2...2; Step = 0.01
f28 = 0.4...10 Hz / s
ROCOF 81R
Step = 0.2 Hz / s
Notes
(1)
The calculation of t is valid for values that have exceeded the activation threshold of the protection.
t
(2)
Valid tolerances with release energized in service conditions or with the auxiliary, tripping time = 100 ms, temperature and currents within operating
limits. If the conditions are not guaranteed, the tolerance of the tripping time becomes ± 20%.
(3)
The tripping threshold of the current for voltage values between Ul2 and Uh2 is calculated by performing the linear interpolation between the
thresholds Uh2 and I21 (first point on the line) and Ul2 and Ks2 * I20 (second point on the line). I
Uh2) + I21.
(5)
The power of the activation threshold of the protection RQ2 is calculated by the intersection of the 2 straight lines composed of Q24 and Kq (P
= Q * Kq + Q24) and from Q25 and Kq2 (P
reshold measured
applies (considering that the values are negative, the applicable threshold is the one nearest to 0).
(6) The parameter f28 limits the selectable minimum value of t28 as follows: 0.4 s (0.4 ≤ f28 < 1 Hz / s); 0.25 s (1.2 < f28 < 5 Hz / s); 0.15 s (f28 ≥
5.2 Hz / s).
(7) ANSI / IEEE C37-2 encoding.
122 | © 2013 ABB | 1SDH001000R0002 - L7804
Tolerance
Tripping time
threshold
t21 = 0.05...30 s
± 10 %
Step = 0.01 s
t21 = 0.05...30 s
± 10 %
Step = 0.01 s
t24 = 0.5...100s
± 10 %
Step = 0.1 s
t28 = 0.15...10 s
± 10 %
Step = 0.1 s
= Q * Kq2 + Q25). If constants Kq and Kq2 are set to 0, the higher threshold
threshold measured
Calculation
formula Tolerance t
t
(1)
t
The better of the two
t = t21 values:
t
± 10% or ± 40 ms
The better of the two
t = t21 values:
(3)
t
± 10% or ± 40 ms
The better of the two
t = t24 values:
t
± 10% or ± 40 ms
The better of the two
(5)
t = t28 values:
t
± 10% or ± 40 ms
= [(I21 * Ks2 *I20) / (Uh2 * Ul2)] / (U
threshold
Ekip Touch protection release | 13 - G Hi-Touch protections
ABB | SACE Emax 2
(2)
t
*
measured
th-