ABB REM615 ANSI Product Manual page 32

Motor Protection
REM615 ANSI
Product Version 2.0
Supervision functions
Table 65. Current circuit supervision (CCM)
Characteristic
Trip time 1)
1)
Including the delay of the output contact
Table 66. Current circuit supervision (CCM) main settings
Parameter
Pickup range
Maximum trip current
Table 67. Fuse failure supervision (60)
Characteristic
Trip time 1)
1)
Includes the delay of the signal output contact, fn = 50 Hz, fault voltage with nominal frequency injected from random phase angle, results
based on statistical distribution of 1000 measurements
Table 68. Motor run time counter (OPTM)
Description
Motor run-time measurement accuracy1)
32
Value
< 30 ms
Values (Range) Unit
0.05...0.20 x I
n
1.00...5.00 x I
n
Value
NPS function:
U = 1.1 x set Neg Seq
Fault
voltage Lev
U = 5.0 x set Neg Seq
Fault
voltage Lev
Delta function:
ΔU = 1.1 x set Voltage change
rate
ΔU = 2.0 x set Voltage change
rate
Value
±0.5%
1MAC251744 -PG Rev. A
Issued: 03.01.2010
Description
Minimum trip current dif-
ferential level
Block of the function at high
phase current
< 33 ms
< 18 ms
<30 ms
<24 ms
ABB