ABB REM615 ANSI Product Manual page 30

Motor Protection
REM615 ANSI
Product Version 2.0
Table 55. Arc protection (AFD)
Characteristic
Pickup Accuracy
Trip time
Reset time
Reset ratio
1)
Phase Pickup range = 1.0 x In, current before fault = 2.0 x set Phase Pickup range, fn = 50Hz, fault with nominal frequency, results based
on statistical distribution 200 measurements
2) Includes the delay of the heavy-duty output contact
Table 56. Arc protection (AFD) main settings
Parameter
Phase Pickup range
(Operating phase current)
Ground Pickup range
(Operating residual current)
Operation mode
Control functions
Table 57. Emergency startup (62EST) main settings
Parameter
Operation
Motor stand still A
Measurement functions
Table 58. Th ree-phase current measurements (IA, IB, IC)
Characteristic Value
Pickup Depending on the frequency of the current measured: fn ±2Hz
accuracy
±0.5% or ±0.002 x In
(at currents in the range of 0.01...4.00 x In)
Suppression of har- DFT: -50dB at f = n x fn, where n = 2, 3, 4, 5,...
monics RMS: No suppression
Table 59. Current sequence components (I1, I2, I0)
Characteristic Value
Pickup Depending on the frequency of the current measured: f/fn = ±2Hz
accuracy
±1.0% or ±0.002 x In
at currents in the range of 0.01...4.00 x In
Suppression of har- DFT: -50dB at f = n x fn, where n = 2, 3, 4, 5,...
monics
30
Operation mode =
"Light+current" 1) 2)
Operation mode = "Light
only" 2)
Function
AFD
AFD
AFD
Function
62EST
62EST
1MAC251744 -PG Rev. A
Value
±3% of the set value or ±0.01 x I
Minimum Typical
9 ms 12 ms
9 ms 10 ms
< 40 ms
Typical 0.96
Value (Range)
0.50...40.00 x I
n
0.05...8.00 x I
n
1=Light+current
2=Light only
3=BI controlled
Value (Range)
Off
On
0.05...0.20 x In
Issued: 03.01.2010
n
Maximum
15 ms
12 ms
Step
0.01
0.01
Step
-
0.01
ABB