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

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ABB | SACE Emax 2
80 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A Ekip Touch protection trip unit | 10 - Measuring Pro protections
Summary table of Measuring Pro protections
ABB ANSI (3) Threshold
Tolerance
threshold
Time
Calculation
formula t
t
(1)
Tolerance t
t
(2)
UV 27
U8 = 0.5….0.98 Un
step = 0.001 Un
± 2 %
t8 = 0.05…120 s
step = 0.01 s
t
t
= t8
The better of the two
values:
± 10 % or ± 40 ms (for a
time set < 5 s) / ± 100 ms
(for a time set
≥
5 s)
OV 59
U9 = 1.02….1.5 Un
step = 0.001 Un
± 2 %
t9 = 0.05…120 s
step = 0.01 s
t
t
= t9
The better of the two
values:
± 10 % or ± 40 ms (for a
time set < 5 s) / ± 100 ms
(for a time set
≥
5 s)
VU
47
U14 = 2…90 %
step = 1 %
± 5 %
t14 = 0.5…60 s
step = 0.5 s
t
t
= t14
The better of the two
values:
± 10 % or ± 40 ms (for a
time set < 5 s) / ± 100 ms
(for a time set
≥
5 s)
UF 81L
f12 = 0.9….0.999 fn
step = 0.001 fn
± 1 %
(4)
t12 = 0.15…300 s
step = 0.01 s
t
t
= t12
The better of the two
values:
± 10 % or ± 40 ms (for a
time set < 5 s) / ± 100 ms
(for a time set
≥ 5 s)
OF 81H
f13 = 1.001….1.1 fn
step = 0.001 fn
± 1 %
(4)
t13 = 0.15…300 s
step = 0.01 s
t
t
= t13
The better of the two
values:
± 10 % or ± 40 ms (for a
time set < 5 s) / ± 100 ms
(for a time set
≥ 5 s)
RP 32R
P11 = -1…-0.05 Sn
step = 0.001 Sn
± 10 %
t11 = 0.5…100 s
step = 0.1 s
t
t
= t11
The better of the two
values:
± 10 % or ± 40 ms (for a
time set < 5 s) / ± 100 ms
(for a time set
≥
5 s)
Synchrocheck 25
Ulive = 0.5…1.1 Un; step = 0.001 Un
∆ U = 0.02…0.12 Un; step = 0.001 Un
∆ f = 0.1…1 Hz; step = 0.1 Hz
∆
Cos
φ
= 5…50° elt; step = 5° elt
tsyn = 0.1…3 s; step = 0.1 s
± 10 %
tref = 0.1…30 s
step = 1 ms
- -
Cyclic
direction of
the phases
47 1-2-3 or 3-2-1 - - - -
Cos φ 78
Cos
φ
= 0.5…0.95
step = 0.01
- - - -
(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) ANSI / IEEE C37-2 encoding.
(4)
Valid tolerance for frequencies in the range: fn ± 2 %. For frequency outside the range a tolerance of ± 5 % applies.