2iB SC10 Instalasi dan Panduan Pengguna - Halaman 11

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Halaman Cetak
2iB SC10 Instalasi dan Panduan Pengguna
11.
Examples of CT Range and Setup for Starter Panels
11.1
22kW Starter for 8kW & 20kW Flygt Pumps (1kV)
Pump Model
Rated
Current
Flygt 8kW 2125
6.2 A
Flygt 20kW 2151
14A
11.2
37kW Starter for 20kW & 37kW Flygt Pumps (1kV)
Pump Model
Rated
Current
Flygt 20kW 2151
14A
Flygt 37kW 2201
26 A
To use with an 8kW & 20kW Pumps it
would be best to set the CT to Mid
(20A) Range.
11.3

Other Options

You can scale the current measurements in a few different ways
An Example: Optimal setup for an 8kW Pump. (Based on 11.1 above.)
Option 1: As above.
30% of the range really is a bit low. It would be best to adjust the range to increase the measurement.
Option 2: Change the
Range Setting on the
SC10
This gives a range of 10A and at FLC this shows 60%. (If you mount the SC10 so that its front panel is accessible
then this change could be done safely without opening the starter panel.)
Option 3: Change the
Range setting on the CT
to 10A.
Results are the same as option 2. (This requires disconnection of power and adjustment by an electrician inside
the starter panel.)
Option 4: Put another
turn through the CT
Results are the same as options 2 & 3, but this requires an electrician to change the wiring.
CT Set to 20A
CT is Dwyer CCT40 with selectable
ranges of 10A, 20A, 50A. Set to 20A.
CT Set to 50A
CT is Dwyer CCT40 with selectable
ranges of 10A, 20A, 50A. Set to 50A.
8
6
20
8
6
20
8
6
10
8
6
10
Set Current Range DIP Switches to
100%
Current Range
SW
Set Current Range DIP Switches to
100%
Current Range
SW
SC10 Current Range
DIP Switches
SW 1
100%
off
50%
off
100%
off
100%
off
1
2
Setting
Off
Off
100% (default)
1
2
Setting
Off
Off
100% (default)
SW 2
off
30%
on
60%
off
60%
off
60%
11