Page 48 - Sace Emax 2 Catalogue

3/24 SACE EMA X 2 LOW VOLTAGE AIR CIRCUIT-BRE AKERS

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Technical characteristics for protection

trip units

Protection functions

ABB Code ANSI Code Function Threshold Threshold step Tripping time Time Excludibility Excludibility Pre-allarm Trip curve Ekip Touch Ekip Hi-Touch Ekip G Touch Ekip G Hi-Touch
Step trip
RV 59N Residual overvoltage protection U22 = 0.05….0.5 x Un 0.001 x Un with U > U22, t22 = 0.5…120s 0.01s yes yes no t = k
Tolerance ± 5% The better of the two data: ± 10% or
± 40 ms (for t<5s) / ± 100 ms (for t≥5s)
OP 32OF Active overpower protection P26 = 0.4…2 Sn 0.001 Sn with P > P26, t26 = 0.5…100s 0.5s yes yes no t = k
Tolerance ± 10% The better of the two data: ± 10% or
± 40 ms (for t<5s) / ± 100 ms (for t≥5s)
OQ 32OF Reactive overpower protection Q27 = 0.4…2 Sn 0.001 Sn with Q > Q27, t27 = 0.5…100s 0.5s yes yes no t = k
Tolerance ± 10% The better of the two data: ± 10% or
± 40 ms (for t<5s) / ± 100 ms (for t≥5s)
UP 32LF Active underpower protection P23 = 0.1...1 x Sn 0.001 x Sn with P < P23, t23 = 0.5…100s 0.5s yes yes no t = k
Start up range: 0.1…30s 0.01s yes
Tolerance ± 10% The better of the two data: ± 10% or
± 40 ms (for t<5s) / ± 100 ms (for t≥5s)
RQ 40/32R Loss of field or reverse reactive Q24 = -1…-0.1 Sn 0.001 Sn with Q > Q24, t24 = 0.5…100s 0.1s yes yes no t = k
power protection Kq = -2…2 0.01
Loss of field or reverse reactive Q25 = -1…-0.1 Sn 0.001 Sn with Q > Q25, t25 = 0.5…100s 0.5s yes yes no t = k
power protection Kq2 = -2…2 0.01
Voltage minimum threshold Vmin. = 0.5...1.2 0.01 yes
Tolerance ± 10% The better of the two data: ± 10% or
± 40 ms (for t<5s) / ± 100 ms (for t≥5s)
S2(V) 51V Voltage controlled overcurrent I21 = 0.6...10 x In 0.1 x In With I > I21, t21 = 0.05…30s 0.01s yes yes no t = k
protection
Step mode Ul2= 0.2…1 x Un 0.01 x Un
Ks2= 0.1…1 0.01
Linear mode Ul2= 0.2…1 x Un 0.01 x Un
Uh2= 0.2…1 x Un 0.01 x Un
Ks2= 0.1…1 0.01
Tolerance ± 10% The better of the two data:
± 10% or ± 40 ms (for t<5s) /
± 100 ms (for t≥5s)
ROCOF 81R Rate of change of frequency f28 = 0.4….10 Hz/s 0.2 Hz/s with f > f28, t28 = 0.5...10s 0.01s yes yes no t = k
protection
Trip direction up &/or down
Tolerance ± 5% The better of the two data:
± 20% or ± 200 ms
Synchro- 25 Synchrocheck (Live busbars) Ulive = 0.5…1.1 Un 0.001 Un Stability voltage time 0.001s yes only no -
check SC ∆U = 0.02…0.12 Un 0.001 Un for live state = 100...30000ms 0.01 s signalling
∆f = 0.1…1Hz 0.1Hz Minimum matching Time =
∆Φ = 5…50° elt 5° elt 100...3000ms
Tolerance ± 10%
Synchrocheck Ulive = 0.5…1.1 Un 0.001 Un tref = 0.1…30s 0.1s yes only no -
(Live,Dead busbars) Udead = 0.02…0.2 Un 0.001 Un signalling
Frequency check off yes
Phase check off yes
Dead bar configuration Reverse/standard yes
Primary voltage 100...1150 100, 115, 120, 190, 208,
220, 230, 240, 277, 347,
380, 400, 415, 440, 480,
500, 550, 600, 660, 690,
910, 950, 1000, 1150
Secondary voltage 100...120 100, 110, 115, 120
Tolerance ± 10%
(1) With Vaux all thresholds are available. Without Vaux minimum threshold is limited to: 0.3In (with In = 100A), 0.25In (with In = 400A) or 0.2In (for all other ratings)
The tolerances above apply to trip units already powered by the main circuit with current flowing in at least two-phases or an auxiliary power supply.
In all other cases the following tollerance values apply:
ABB Code Trip threshold Trip time
L Trip between 1.05 and 1.2 x I1 ± 20%
S ± 10% ± 20%
I ± 15% ≤ 60ms
G ± 15% ± 20%
Other protection ± 15% ± 20%