ABB ABILITY SSC600 Product Manual page 24

Product Guide
SSC600
Product version: 1.0
Table 70. Thermal overload protection for motors (MPTTR)
Characteristic
Operation accuracy
Operate time accuracy
56
Table 71. Thermal overload protection for motors (MPTTR) main settings
Parameter
Overload factor
Alarm thermal value
Restart thermal Val
Weighting factor p
Time constant normal
Time constant start
Env temperature mode
Env temperature Set
Operation
Table 72. Three-phase thermal overload protection, two time constants (T2PTTR)
Characteristic
Operation accuracy
Operate time accuracy
57
Table 73. Three-phase thermal overload protection, two time constants (T2PTTR) main settings
Parameter
Temperature rise
Max temperature
Operate temperature
Short time constant
Weighting factor p
Current reference
Operation
Table 74. Stabilized and instantaneous differential protection for two-winding transformers (TR2PTDF)
Characteristic
Operation accuracy
Start time Low stage
58, 59
High stage
Reset time
Reset ratio
Suppression of harmonics
56 Overload current > 1.2 × Operate level temperature
57 Overload current > 1.2 x Operate level temperature
58 Current before fault = 0.0, fn = 50 Hz, results based on statistical distribution of 1000 measurements
59 Includes the delay of the output contact. When differential current = 2 × set operate value and fn = 50 Hz.
24
Function
MPTTR
MPTTR
MPTTR
MPTTR
MPTTR
MPTTR
MPTTR
MPTTR
MPTTR
Function
T2PTTR
T2PTTR
T2PTTR
T2PTTR
T2PTTR
T2PTTR
T2PTTR
Value
Depending on the frequency of the measured current: fn ±2 Hz
±3.0% of the set value or ±0.002 × In
Minimum
36 ms
21 ms
Typically 40 ms
Typically 0.96
DFT: -50 dB at f = n × fn, where n = 2, 3, 4, 5, ...
Value
Depending on the frequency of the measured current: fn ±2 Hz
Current measurement: ±1.5% of the set value or ±0.002 x In (at currents in the range
of 0.01...4.00 x In)
±2.0% of the theoretical value or ±0.50 s
Value (Range)
1.00...1.20
50.0...100.0%
20.0...80.0%
20.0...100.0%
80...4000 s
80...4000 s
1 = FLC Only
2 = Use input
3 = Set Amb Temp
-20.0...70.0°C
1 = on
5 = off
Value
Depending on the frequency of the measured current: fn ±2 Hz
Current measurement: ±1.5% of the set value or ±0.002 x In (at currents in the range
of 0.01...4.00 x In)
±2.0% of the theoretical value or ±0.50 s
Value (Range)
0.0...200.0°C
0.0...200.0°C
80.0...120.0%
6...60000 s
0.00...1.00
0.05...4.00 × In
1 = on
5 = off
Typical
41 ms
22 ms
1MRS758725
Step
0.01
0.1
0.1
0.1
1
1
-
0.1
-
Step
0.1
0.1
0.1
1
0.01
0.01
-
Maximum
46 ms
24 ms
ABB