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ABB | SACE Emax 2
4 - Voltage Advanced protections
List
The Advanced Voltage protections, available by default for the Ekip G Touch and Ekip G Hi-Touch models and configurable in the remaining models
as additional SW package, are:
Name Type of protection Threshold Time Additional functions (3)
S(V) Short-circuit with voltammetric control Mode, Trip enable, Block
S2(V) (1) Short-circuit with voltammetric control Mode, Trip enable, Block
RV (2) Residual voltage Trip enable, Block
Further details about the protections are given in document 1SDH001330R1002.
(1) S2(V) protection is not available by default with Ekip G Touch. However, it can be integrated by requesting the relative SW package
(2) available for 4P or 3P circuit-breakers configured with external neutral voltage
(3) Block configuration available via Ekip Connect
Summary table
Tolerance Calculation
ABB ANSI (6) Threshold (7)(8) Time Tolerance t (5)
threshold formula t (4) t
t
I20 = 0,6...10 In step = 0,1 In ; The best of the two values: ± 10% or
(9)
Ul = 0,2...1 Un step = 0,01 Un ; t20 = 0,05...30 s
(9)
S(V) 51V ± 10 % t = t20 ± 40 ms (for set time < 5 s) / ± 100
(9)
Uh = 0,2...1 Un step = 0,01 Un ; Step = 0,01 s t ms (for set time ≥ 5 s)
Ks = 0,1…1 step = 0,01 (9)
I21 = 0,6...10 In step = 0,1 In (10) ;
Ul2 = 0,2...1 Un step = 0,01 Un (10) ; t21 = 0,05...30 s The best of the two values: ± 10% or
S2(V) 51V ± 10 % t = t21 ± 40 ms (for set time < 5 s) / ± 100
Uh2 = 0,2...1 Un step = 0,01 Un (10) ; Step = 0,01 s t ms (for set time ≥ 5 s)
Ks2 = 0,1…1; step = 0,01 (10)
The best of the two values: ± 10% or
t22 = 0,05...120 s
RV 59N U22 = 0,05...0,5 Un Step = 0,001 Un ± 5 % t = t22 ± 40 ms (for set time < 5 s) / ± 100
Step = 0,01 s t
ms (for set time ≥ 5 s)
(4) calculation of t is valid for values which have exceeded the trip threshold of the protection
t
(5) tolerance values valid with Trip unit supplied at full rate or by auxiliary power supply, trip time ≥ 100 ms, temperature and current values within
operating limits; the tolerance value is ± 20% if the conditions are not guaranteed
(6) ANSI / IEEE C37-2 codification
(7) S(V) protection: in the Linear mode, the current trip threshold for voltage values between Ul and Uh is calculated by performing linear interpolation
between thresholds Uh and I20 (first point of the line) and Ul and Ks * I20 (second point of the line). I = [I20 * (1 - Ks) * (U - Uh)] / (Uh -
threshold measured
Ul) + I20
(8) S2(V) protection: in the Linear mode, the current trip threshold for voltage values between Ul2 and Uh2 is calculated by performing linear
interpolation between thresholds Uh2 and I21 (first point of the line) and Ul2 and Ks2 * I21 (second point of the line). I = [I21 * (1 - Ks2) * (U
threshold
– Uh2)] / (Uh2 - Ul2) + I21
measured
(9) the threshold Ks setting must ensure the following limitation: Ks * I20 ≥ 0.6 In; parameter Uh is available in the Linear mode; the setting must
comply with the following limitation: Uh > Ul
(10) the threshold Ks2 setting must ensure the following limitation: Ks2 * I21 ≥ 0.6 In; parameter Uh2 is available in the Linear mode; the setting must
comply with the following limitation: Uh2 > Ul2
33 | © 2019 ABB | 1SDH001316R1002 - ECN000086501 - Rev. A Protections | 4 - Voltage Advanced protections
