14/4798.495.002
76 | Installation
Dachs Pro 20 ST
Additional information on CHP net electricity metering:
At the CHP supply , CHP net electricity generation can be metered according to the German Combined Heat
and Power Act (KWKG) 2009.
Extract from the German Combined Heat and Power Act (KWKG) 2009:
“Net electricity generation refers to the electricity generated by an unit measured at the generator terminals
reduced by the unit consumption for operation.”
CHP net electricity generation metering according to the German Combined Heat and Power Act (KWKG)
2009:
To sell the electricity generated by the CHP unit, a CHP electricity meter has to be installed in addition to the
supply and consumption meters (usually a bidirectional meter).
Meter and meter installation
According to the CHP act, operators are entitled to install a metering unit (CHP electricity meter). The meter
has to comply with calibration regulations and must be equipped with a non-return device. There are different
types of meters. SenerTec recommends mechanical meters as these are calibrated for 16 years. A technical
solution would be a calibrated bus bar meter in an electrical circuit distribution.
i
This is the latest information at time of printing.
Attention:
The installation position of the meter has to be coordinated with the respective distribution
network operator (DNO). The installation is carried out by the authorised electrician in
coordination with the distribution network operator.
!
Protection devices and line lengths:
The Dachs Pro 20 ST grid connection is to be protected at the connection to the
●
CHP
with
3 × 50 gG (D0 load break switch [Neozed])
and to the
●
MSR Pro 20 ST
with
1 × B 16A.
To minimise line losses and avoid shut-downs due to overvoltage, minimum voltage drop is to be ensured when dimensioning
the connection lines. The connection line has to be dimensioned according to the protection device, line length and line
routing. The cross section must always be
5 × 10 mm² for the CHP
and
3 × 1.5 mm² for the MSR Pro 20 ST
.
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