Shihlin electric BA Series User Manual

ACB-I
10
I N S T R U C T I O N S
(
1) Specication of ZCT1 transformer
Note : 1. 200-400A/1A and 600-2000A/5A are customizable.
2. ZCT1 supplies bus bar through layout for Frame I. If ZCT1 is chosen for FrameII and Frame III, then use the way of
pulling on cables.
(2) Specication of ZT100 transformer
Primary current 200A 400A
Secondary current 1A 1A
4.1.1.5 Overload supervision and control protection features
Table 5 for reference of technical parameters of short circuit instantaneous protection features
Controller is programmed output two passive signal contacts, which can charge of overload supervision and control,
they are use for alarming, break the overload circuit and keep the main system norm
al power supply.
User can pick one of these two supervision patterns:
Pattern 1: control overload of two –sub-circuit, controller output the signal contracts in the light of inverse time
delay respectively when the working current exceeds 1.2 l
c1
or 1.2 l
c2
. Characteristic curve of inverse time equal to
characteristic curve of overload long time delay, meanwhile, it is settable for curve slop and se
tting current value.
Pattern 2: control overload of sub circuit, if the running current surpasses 1.2 l
c1
, signal contracts will set out to break
sub circuit over overload by controller's action, which is according to inverse time delay characteristic. Characteristic
curve of inverse time equal to characteristic curve of overload long time delay, it is settable for curve slop and setting
current v
alue when setting value l
c1
> l
c2
. If the running currents recover after breaking sub circuit overload, the
current lower than the setting value l
c2
lasting 60s, the controller sends out a signal contact again to pick up broken
overload and restore the power supply of system.
Primary current 200A 400A 600A 1000A 2000A
Secondary current 1A 1A 5A 5A 5A
Pattern 1
Setting current value
I
c1
=In×… 0.2 ∼ 1+OFF( min 100A, OFF means exit)
Output characteristic
≤ 1.05 I
c1
: non making
> 1.2 Ic1 : delay relay making
Inverse time delay（s）
Characteristic curve The same as overload long time delay characteristic curve
Curve rate Set separately ( setting coecient equals to overload long time delay)
Setting current value
I
c2
=In×… 0.2 ∼ 1+OFF( min 100A, OFF means exit)
Output
characteristics
≤ 1.05 I
c2
: non making
> 1.2 I
c2
: delay relay making
Inverse time delay（s）
Characteristic curve The same as overload long time delay characteristic curve
Curve rate Set separately ( setting coecient equals to overload long time delay)
Pattern 2
Setting current
I
c1
=In×… 0.2 ∼ 1+OFF( min 100A, OFF means exit)
Output characteristic
≤ 1.05 I
c1
: non making
> 1.2 I
c1
: delay relay making
Inverse
time delay（s）
Characteristic Curve The same as overload long time delay characteristic curve
Curve rate Set separately ( setting coecient equals to overload long time delay)
Setting current
I
c2
=In× 0.2 ∼ 1+OFF（OFF means exit）
Output characteristic <I
c2
delay relay making
Constant time lag（s） Fixed 60s
Precision ±10%
Thermal memory( 30min, re-set while power o) Standard+OFF
Table 5: Technical parameters of short circuit instantaneous protection features

Shihlin electric BA Series Specifications

General

Brand	Shihlin electric
Model	BA Series
Category	Circuit breakers
Language	English