POSITIONING OF CT SENSOR
:
✓
Positioned at the output of the import/export meter
so that all incoming and outgoing power flows can be
read, it must include all phase cables entering or exiting the meter.
✓
The
direction of the CT is independent of the installation
, and is recognised by the system during the first
start-up.
Connect negative and positive in the sensor respectively to inputs 19 and 18 of the COM connector
Use an 8-pin, category 6
STP
cable as an
EXTENSION CABLE
; use all the coloured pins
(blue-orange-green-brown) to extend the positive cable of the CT and all the white/coloured pins
(white/blue-white/orange-white/green/brown) to extend the negative cable of the CT.
The shield must be grounded on one of the two sides.
PIN
Definition
19
CT-
(black/yellow)
18
CT+ (red)
Use for distances of less
than 50 m between the
inverter and CT
CT
- measures the
current exchanged
with the grid
M1
Household loads
Magn. Diff. (
300mA
)
Inverter
Magn. Diff.
(
30mA
) General
Meter
Production
Meter
Exchange
M2
OK
M1
Household loads
Magn. Diff. (300mA)
Inverter
Magn. Diff. (30mA)
General
Meter
Production
Meter
Exchange
M2
NO
10.1 MEASURING EXCHANGE VIA CT SENSOR
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