ABB RED615 - Clearing and Acknowledging Status

Table 62. Three-phase thermal overload protection, two time constants (T2PTTR)
Characteristic Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2 Hz
Current measurement: ±1.5% of the set value or ±0.002 x I
n
(at currents
in the range of 0.01...4.00 x I
n
)
Operate time accuracy
1)
±2.0% of the theoretical value or ±0.50 s
1) Overload current > 1.2 x Operate level temperature
Table 63. 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
Weighting factor p T2PTTR 0.00...1.00 0.01
Short time constant T2PTTR 6...60000 s 1
Current reference T2PTTR 0.05...4.00 × I
n
0.01
Operation T2PTTR Off
On
-
Table 64. Binary signal transfer (BSTGGIO)
Characteristic
Value
Signalling delay Fiber optic link <5 ms
Galvanic pilot wire link <10 ms
Table 65. Circuit breaker failure protection (CCBRBRF)
Characteristic
Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2 Hz
±1.5% of the set value or ±0.002 × I
n
Operate time accuracy ±1.0% of the set value or ±20 ms
Reset time
1)
Typically 40 ms
Retardation time <20 ms
1) Trip pulse time defines the minimum pulse length
Line Differential Protection and Control
1MRS756500 K
RED615
Product version: 5.0 FP1
46 ABB