ABB ABILITY SSC600 - Testing IED Operation; Selecting IED Test Mode

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