ABB | SACE Emax 2ABB | SACE Emax 2
Protections23 | © 2023 ABB | 1SDH001316R1002 - ECN000297030
Continued from the previous page
Summary table of additional functions in conjunction with protections D and UP:
ABB ANSI
(7)
Threshold
Tolerance
threshold
Time
Calculation
formula t
t
(5)
Tolerance t
t
(6)
UP (Startup)
(10)
t23startup= 0,1...30 s, step
= 0,01 s
D (Startup)
I7startup Fw/Bw = 0,6...10 In
step = 0,1 In
± 10 %
t7startup = 0,1...30 s step =
0,01 s
tt = t7startup
The better of the two
values: ± 10 % or ±
40 ms
D (SdZ) 68 - -
t7SdZ Fw/Bw = 0,1...0,8 s
step = 0,01 s
(10)
UP protection startup should be considered as the temporary deactivation time of the protection, from the point in which the startup
threshold is exceeded
7 - ROCOF protections
Description
The ROCOF Protection package includes the protection of the same name and is available by default for Ekip G Hi-Touch; it can be configured in
the remaining models as additional SW package
ROCOF Protection protects against rapid frequency variations and has the following additional functions: Trip Enable, Trip Direction and Block.
Further details about the protections are given in document 1SDH001330R1002.
Summary table
ABB ANSI
(3)
Threshold
Tolerance
threshold
Time
Calculation
formula t
t
(1)
Tolerance t
t
(2)
ROCOF
(4)
81R
f28 = 0,4...10 Hz / s
step = 0,2 Hz / s
± 10 %
(5)
t28 = 0,06...300 s step = 0,01 s t
t
= t28
The best of the two
values: ± 20% or 200
ms
(1)
calculation of t
t
is valid for values which have exceeded the trip threshold of the protection
(2)
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 becomes ± 20% if the conditions are not guaranteed
(3)
ANSI / IEEE C37-2 codification
(4)
not active for voltage values < 30 V
(5)
± 20% for threshold 0.4 Hz / s
8 - Adaptive protections
Description
The Adaptive Protection package includes the
Double Set
protection and is available by default for Ekip G Hi-Touch; it can be configured in the
remaining models as additional SW package
The
Double Set
function enables two different protection configurations to be made, one as an alternative to the other, by means of a set change
with programmable events.
Parameters
The function can be activated and the Set of the main protections configured in the
Settings
-
Double Set
menu; the event that determines Set
change (from main to secondary) can be programmed in the
Advanced
-
Functions
menu.
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