ABB RELION 615 Series Product Manual page 38

Motor Protection and Control
REM615
Product version: 5.0 FP1
Table 50. Motor start-up supervision (STTPMSU)
Characteristic
Operation accuracy
1)2)
Start time
Operate time accuracy
Reset ratio
1) Current before = 0.0 × I , f = 50 Hz, overcurrent in one phase, results based on statistical distribution of 1000 measurements
n n
2) Includes the delay of the signal output contact
Table 51. Motor start-up supervision (STTPMSU) main settings
Parameter
Motor start-up A
Motor start-up time
Lock rotor time
Operation
Operation mode
Restart inhibit time
Table 52. Phase reversal protection (PREVPTOC)
Characteristic
Operation accuracy
1)2)
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Suppression of harmonics
1) Negative-sequence current before = 0.0, f
2) Includes the delay of the signal output contact
38
Start detection A
= 1.1 × set
Fault
Function
STTPMSU
STTPMSU
STTPMSU
STTPMSU
STTPMSU
STTPMSU
I = 2.0 × set Start value
Fault
= 50 Hz, results based on statistical distribution of 1000 measurements
n
Value
Depending on the frequency of the measured current: f
±1.5% of the set value or ±0.002 × I
Minimum Typical
27 ms 30 ms
±1.0% of the set value or ±20 ms
Typically 0.90
Value (Range)
1.0...10.0 × I
n
1...80 s
2...120 s
1 = on
5 = off
1 = IIt
2 = IIt, CB
3 = IIt + stall
4 = IIt + stall, CB
0...250 min
Value
Depending on the frequency of the measured current: f
±1.5% of the set value or ±0.002 × I
Minimum Typical
23 ms 25 ms
Typically 40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
1MRS756890 N
±2 Hz
n
n
Maximum
34 ms
Step
0.1
1
1
-
-
1
±2 Hz
n
n
Maximum
28 ms
ABB