Shihlin electric BA Series User Manual

ACB-I
8
I N S T R U C T I O N S
4.1.1.3 Short circuit instantaneous protection features
Table 3: Technical parameters of short circuit instantaneous protection features
Setting current value
Ir3 1.0 In~50kA/75kA/100kA ＋ OFF (EXIT)
Operating characteristic
≤ 0.85 Ir3 no tripping
>1.15 Ir3 tripping
Actuation time < 100ms ( Including original break time of the circuit-breaker)
Note : If the controller is Frame I, the setting values of instantaneous protection is 1.01 ln ∼ 50kA +OFF. If it is Frame II, that
setting value is 1.01 ln ∼ 75kA +OFF. And 1.01 ln ∼ 100kA +OFF as
Frame III.
4.1.1.4 Unsymmetrical earthing or leakage protection features
Table 4: Technical parameters of Unsymmetrical earthing or leakage protection features
Earth fault
protection
Setting current
I
f
=In× … 0.2 ∼ 1 +OFF（Minimum 100A, OFF means exit）
Operating Characteristics
<0.8 I
f
: no tripping
≥ 1.0 I
f
: delay tripping
Time delay(s)
Denite time-delayT
G
(s)
0.1 ∼ 1 +OFF
(0.1 interval, OFF means alarming without tripping)
Inverse time coecient K
G
1.5 ∼ 6 +OFF ( 0.5 interval, OFF means earthing as
denite time mode)
Precision ±10%
Leakage protection
Setting current
I
f
=I △ x … 0.1 ∼ 1.0+OFF（ 0.01A interval, OFF means exit）
Operating characteristics
<0.8 I
f
: no tripping
≥ 1.0 I
f
: delay tripping
Time delays(s)
Denite time-delayT
G
(s)
0.1 ∼ 1 +OFF(0.1 interval, OFF means alarming
without tripping)
Inverse time coecient K
G
1.5 ∼ 6 +OFF(0.5 interval, OFF means earthing as
denite time mode)
Precision ±15%

Shihlin electric BA Series Specifications

General

Brand	Shihlin electric
Model	BA Series
Category	Circuit breakers
Language	English