ABB SACE Emax E1.2, Operating Instructions For The Design Engineer

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ABB | SACE Emax 2
Ekip Touch protection trip unit | 11 - Hi-Touch protections 89 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
Summary table of Hi-Touch protections
ABB ANSI (4) Threshold
Tolerance
threshold
Time
Calculation
formula t
t
(1)
Tolerance t
t
(2)
S2 50 TD
I5 = 0.6...10 In
step = 0.1 In ± 7 % If
≤
6 In
± 10 % If > 6 In
t5 = 0.05...0.8 s
step = 0.01 s
t
t
= t5
The better of the two values:
± 10 % or ± 40 ms
D 67
I7 Fw/Bw = 0.6...10 In
step = 0.1 In ± 7 % If ≤ 6 In
± 10 % If > 6 In
t7 Fw/Bw = 0.1...0.8 s
step = 0.01 s
t
t
= t7
The better of the two values:
± 10 % or ± 40 ms
UV2 27
U15= 0.5….0.98 Un
step = 0.001 Un
± 2 %
t15 = 0.05…120 s
step = 0.01 s
t
t
= t15
The better of the two values:
± 10 % or ± 40 ms (for a time
set < 5 s) / ± 100 ms (for a time
set > 5 s)
OV2 59
U16= 1.02….1.5 Un
step = 0.001 Un
± 2 %
t16 = 0.05…120 s
step = 0.01 s
t
t
= t16
The better of the two values:
± 10 % or ± 40 ms (for a time
set < 5 s) / ± 100 ms (for a time
set > 5 s)
UF2 81L
f17= 0.9….0.999 fn
step = 0.001 fn
± 1 %
(5)
t17 = 0.15…300 s
step = 0.01 s
t
t
= t17
The better of the two values:
± 10 % (min=30ms) or ± 40 ms
(for a time set < 5 s) / ± 100 ms
(for a time set > 5 s)
OF2 81H
f18= 1.001….1.1 fn
step = 0.001 fn
± 1 %
(5)
t18 = 015…300 s
step = 0.01 s
t
t
= t18
The better of the two values:
± 10 % or ± 40 ms (for a time
set < 5 s) / ± 100 ms (for a time
set > 5 s)
Table of Additional functions of the protections
The following table summarises the additional functions combined with protections S2 and D:
ABB ANSI (4) Threshold
Threshold
tolerance
(2)
Time (3)
Calculation
formula t
t
(1)
Tolerance t
t
(2)
S2
(Startup)
-
I5
startup
= 0.6...10 In
step = 0.1 In
± 7 % with If
≤
6 In
± 10 % with If > 6 In
t5
startup
= 0.1…30 s
step = 0.01 s
t
t
= t5
startup
The better of the two values:
± 10 % or ± 40 ms
S2
(Sdz)
68 - -
t2
sdz
= 0.04…0.2 s
step = 0.01 s
- -
D
(Startup)
-
I7
startup
= 0.6...10 In
step = 0.1 In
± 10 %
t7
startup
= 0.1…30 s
step = 0.01 s
t
t
= t7
startup
The better of the two values:
± 10 % or ± 40 ms
D
(SdZ)
68 - -
t7
SdZ
= 0.1…0.8 s
step = 0.01 s
- -
(1)
Calculation of t
t
is valid for values exceeding the tripping threshold of the protection.
(2)
Valid tolerances with steady-state energized trip unit or trip unit energized by auxiliary power supply, tripping time
≥
100 ms, temperature and
currents within operating limits. If these conditions are not guaranteed, the tripping time tolerance of ± 10 % will become ± 20%.
(3)
For the startup functions, the specified time is the period during which the protection with the different threshold remains active, calculated from the
moment the startup threshold is exceeded.
(4)
ANSI / IEEE C37-2 encoding.
(5)
Valid tolerance for frequencies in the range: fn ± 2 %. For frequency outside the range a tolerance of ± 5 % applies.