Summary Table Of Basic Protections - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions
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Summary table of Basic protections
ABB
ANSI
Threshold
(9)
L
I1 = 0.4...1 In
49
(60947-2)
step = 0.001 In
L
I1 = 0.4...1 In
49
(60255-3)
step = 0.001 In
(1)
S
I2 = 0.6...10 In
50 TD
(t=k)
step = 0.1 In
S
I2 = 0.6...10 In
51
(t=k / I
)
step = 0.1 In
2
I3 = 1.5...15 In
I
50
step = 0.1 In
G
50N
I4
(4)
(t=k)
TD
step = 0.001 In
G
I4
(4)
51N
(t=k / I
)
step = 0.001 In
2
I3 = 1.5...15 In
MCR
-
step = 0.1 In
I6 = 2...90 %
IU
46
step =1 %
Iinst
-
Defined by ABB -
Current
50...100 % I1
thresholds
-
step = 1 %
(1 and 2)
Current
thresholds
0.3...10 In
-
(Iw1 and
step = 0.01 In
Iw2)
94 | © 2013 ABB | 1SDH001000R0002 - L7804
Threshold
tolerance
(3)
activation for
If in the range
(1.05...1.2)
x I1
activation for
If in the range
(1.05...1.2)
x I1
± 7% with I2
≤ 6 In
± 10% with I2
> 6 In
± 7% with I2
≤ 6 In
± 10% with I2
> 6 In
± 10 %
= 0,1...1 In
± 7 %
= 0,1...1 In
± 7 %
± 10 %
± 10 %
-
-
Calculation
Time
formula t
t1 = 3...144 s
t
=
t
step = 1 s
(9 t1) / (If / I1)
t
=
t1 = 3...144 s
t
(t1 x a x b) /
step = 1 s
((If / I1)
-a)
k
t2 = 0.05...0.8
s
t
= t2
t
step = 0.01 s
t2 = 0.05...0.8
t
=
s
t
(100 t2) / (If)
step = 0.01 s
≤ 30 ms
Not adjustable t
t
t4 = 0...1 s
t
= t4
step = 0.05 s
t
t4 = 0.1...1 s
t
=
t
step = 0.05 s
2 / (If / I4)
40...500 ms
(5)
≤ 30 ms
t
step = 0.01 s
t
t6 = 0.5...60 s
t
= t6
step= 0.5 s
t
Instantaneous -
-
-
-
-
Example
Tolerance t
calculation t
(2)
(2)
t
t
t
= 6.75 s
t
with:
± 10 % with If ≤ 6 In
I1 = 0.4 In; t1 =
± 20 % with If > 6 In
2
3 s; If = 0.8 In
± 10 % with If ≤ 6 In
see the table
below
± 20 % with If > 6 In
The better of the
-
two values:
± 10 % or ± 40 ms
t
= 5 s con:
± 15 % with If ≤ 6 In
t
I2 = 1 In; t2 =
± 20 % with If > 6 In
2
0.8 s; If = 4 In
-
-
The better of the
two values:
-
± 10 % or ± 40 ms
(8)
t
= 0.32 s
t
with:
± 15 %
I4 = 0.8 In; t4 =
2
0.2 s; If = 2 In
-
-
-
-
-
-
-
-
-
-
Continued on the next page
Ekip Touch protection release | 9 - Touch protections
ABB | SACE Emax 2
(3)
t
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