ABB ABILITY SSC600, Product Manual, Page: 19 / 42

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19 ABB
Product Guide 1MRS758725
SSC600
Product version: 1.0
Table 43. Three-phase underimpedance protection (UZPDIS)
Characteristic Value
Operation accuracy Depending on the frequency of the measured
current and voltage: fn ±2 Hz
±3.0% of the set value or ±0.2 %Zb
Start time
42, 43
Typically 50 ms
Reset time Typically 40 ms
Reset ratio Typically 1.04
Retardation time <40 ms
Operate time accuracy ±1.0% of the set value or ±20 ms
Table 44. Three-phase thermal protection for feeders, cables and distribution transformers (T1PTTR)
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 × In (at currents in the
range of 0.01...4.00 × In)
Operate time accuracy 44 ±2.0% of the theoretical value or ±0.50 s
Table 45. Three-phase thermal protection for feeders, cables and distribution transformers (T1PTTR) main settings
Parameter Function Value (Range) Step
Env temperature Set T1PTTR -50...100°C 1
Current reference T1PTTR 0.05...4.00 × In 0.01
Temperature rise T1PTTR 0.0...200.0°C 0.1
Time constant T1PTTR 60...60000 s 1
Maximum temperature T1PTTR 20.0...200.0°C 0.1
Alarm value T1PTTR 20.0...150.0°C 0.1
Reclose temperature T1PTTR 20.0...150.0°C 0.1
Current multiplier T1PTTR 1...5 1
Initial temperature T1PTTR -50.0...100.0°C 0.1
Table 46. Circuit breaker failure protection (CCBRBRF)
Characteristic Value
Operation accuracy Depending on the frequency of the measured current: fn ±2 Hz
±1.5% of the set value or ±0.002 × In
Operate time accuracy ±1.0% of the set value or ±20 ms
Reset time Typically 40 ms
Retardation time <20 ms
Table 47. Circuit breaker failure protection (CCBRBRF) main settings
Parameter Function Value (Range) Step
Current value CCBRBRF 0.05...2.00 × In 0.05
Current value Res CCBRBRF 0.05...2.00 × In 0.05
CB failure mode CCBRBRF 1 = Current
2 = Breaker status
3 = Both -
CB fail trip mode CCBRBRF 1 = Off
2 = Without check
3 = Current check -
Retrip time CCBRBRF 0...60000 ms 10
CB failure delay CCBRBRF 0...60000 ms 10
CB fault delay CCBRBRF 0...60000 ms 10
42 fn = 50 Hz, results based on statistical distribution of 1000 measurements
43 Includes the delay of the signal output contact
44 Overload current > 1.2 × Operate level temperature