ABB SACE Emax 2 - Installation

ABB | SACE Emax 2ABB | SACE Emax 2
Protections21 | © 2023 ABB | 1SDH001316R1002 - ECN000297030
5 - Frequency protections
List
The Frequency protections, available by default for Ekip Hi-Touch, Ekip G Touch, Ekip G-Hi Touch models and configurable in the remaining
models as additional SW package, are:
Name Type of protection Threshold Time Additional functions
(2)
UF Minimum frequency Trip enable, Block
OF Maximum frequency
Trip enable, Block
UF2
(1)
Minimum frequency Trip enable, Block
OF2
(1)
Maximum frequency Trip enable, Block
Further details about the protections are given in document 1SDH001330R1002.
(1)
protections UF2 and OF2 are not available by default with Ekip G Touch. However, they can be integrated by requesting the relative SW
package
(2)
Block configuration available via Ekip Connect
Summary table
ABB ANSI
(5)
Threshold
(7)(8)
Tolerance
threshold
Time
Calculation
formula t
t
(3)
Tolerance t
t
(4)
UF
(6)
81L
f12 = 0,9...1 fn
Step = 0,001 fn
± 1 %
(7)
t12 = 0,06...300 s
Step = 0,01 s
t
t
= t12
The best of the two values: ± 10 % (min = 30 ms) or ±
40 ms (for set time < 5 s) / ± 100 ms (for set time ≥ 5
s)
OF
(6)
81H
f13 = 1...1,1 fn
Step = 0,001 fn
± 1 %
(7)
t13 = 0,06...300 s
Step = 0,01 s
t
t
= t13
The best of the two values: ± 10% or ± 40 ms (for set
time < 5 s) / ± 100 ms (for set time ≥ 5 s)
UF2
(6)
81L
f17 = 0,9...1 fn
Step = 0,001 fn
± 1 %
(7)
t17 = 0,06...300 s
Step = 0,01 s
t
t
= t17
The best of the two values: ± 10 % (min = 30 ms) or ±
40 ms (for set time < 5 s) / ± 100 ms (for set time ≥ 5
s)
OF2
(6)
81H
f18 = 1...1,1 fn
Step = 0,001 fn
± 1 %
(7)
t18 = 0,06...300 s
Step = 0,01 s
t
t
= t18
The best of the two values: ± 10% or ± 40 ms (for set
time < 5 s) / ± 100 ms (for set time ≥ 5 s)
(3)
calculation of t
t
is valid for values which have exceeded the trip threshold of the protection
(4)
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
(5)
ANSI / IEEE C37-2 codification
(6)
the protection excludes itself if the maximum value of the line-to-line voltage is less than 32 V with hysteresis at 36 V
(7)
tolerance valid for frequencies within range: fn ± 2%; a ± 5% tolerance is available for off range frequencies