ABB REM615 ANSI - Page 27

ABB 27
Motor Protection
REM615 ANSI
Product Version 2.0
1MAC251744 -PG Rev. A
Issued: 03.01.2010
Table 44. Loss of load supervision (37)
Characteristic Value
Operation Accuracy Depending on the frequency of the current
measured: f
n
±2Hz
±1.5% of the set value or ±0.002 x I
n
Start time Typical 300 ms
Reset time < 40 ms
Reset ratio Typical 0.96
Retardation time < 35 ms
Operate time accuracy in de nite time mode ±1.0% of the set value or ±20 ms
Table 46. Motor load jam protection (51LR)
Characteristic Value
Operation Accuracy Depending on the frequency of the current
measured: f
n
±2Hz
±1.5% of the set value or ±0.002 x I
n
Reset time < 40 ms
Reset ratio Typical 0.96
Retardation time < 35 ms
Operate time accuracy in de nite time mode ±1.0% of the set value or ±20 ms
Table 45. Loss of load supervision (37) main settings
Parameter Function Value (Range) Step
Start value high 37 0.01...1.00 x I
n
0.01
Start value low 37 0.01...0.50 x I
n
0.01
Operate delay time 37 40...600000 ms 10
Operation 37 O
On
-
Table 47. Motor load jam protection (51LR) main settings
Parameter Function Value (Range) Step
Operation 51LR O
On
-
Start value 51LR 0.01...10.00 x I
n
0.01
Operate delay time 51LR 100...120000 ms 10
Table 43. Negative phase-sequence current protection (46) main settings
Parameter Function Value (Range) Step
Pickup range 46 0.01...5.00 x I
n
0.01
Time multiplier 46 0.05...15.00 0.05
De nite time delay 46 40...200000 ms 10
Operating curve type
1)
46 De nite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 17, 18, 19
1)
For further reference please refer to the Operating characteristics table at the end of the Technical data chapter