Shihlin electric BA Series User Manual

ACB-I
6
I N S T R U C T I O N S
Power distribution or
motor protection
Setting current value
Ir1=In× … 0.4 ∼ 1+OFF (Exit)
Operating characteristic
≤ 1.05 Ir1 : >2h no tripping
> 1.30 Ir1 :<1h tripping
Inverse time delay
setting value t
L
(s)
(corresponding to 2lr1)
Characteristic curve
Curve 1 ∼ Curve 6* (settable)
Factory default set curve 3
Curve rate IEC60255 standard, total 96 intervals, settable
Precision ±10% (Fixed 40ms)
Generator prot
ection
Setting current value
Ir1=In× … 0.4 ∼ 1.25 +OFF (Exit)
Operating characteristic
≤ 1.05 Ir1 : >2h no tripping
> 1.20 Ir1 :<1h tripping
Inverse time-delay
setting value t
L
(s)
(corresponding to 2lr1)
Characteristic curve
Curve 1 ∼ Curve 6* (settable)
Factory default curve 3
Curve rate IEC60255 standard, total 96 intervals, settable
Precision ±10%
N-phase protection
Setting coecient* 100% or 50% (supple to
3P+N or 4P)
Operating characteristic The same protection features as A, B, C three-phase
Thermal memory (30min, clean out while power o） Standard+OFF
Note : The setting coecient of N-phase protection is 50%, then the setting value of N-phase protection becomes 50% of
total A, B, C 3-phase. Take setting current value of long time delay as 1600A as a sample, for N-phase, its value is 800A.
4.1 Intelligent controller function
4.1.1 Protection features
4.1.1.1 Overload long time-delay trip protection features
Table 1 for reference of technical parameters of overload long time-delay protection features
Table 1: Technical parameters of overload long time-delay protection features

Shihlin electric BA Series Specifications

General

Brand	Shihlin electric
Model	BA Series
Category	Circuit breakers
Language	English