10
Appendix
10.1
Connection examples
Individual in-plant generation system in parallel operation without isolated
operation possibility, single-phase feed with anti-islanding protection.
Low-voltage network ~ 400 / 230 V
House connection line
House connection box
VNB
Customer
Z
(2)
(1)
~ 400 / 230 V
Consumer
equipment of
the customer
Photovoltaic
~
generator with
power inverter
max. 4.6 kVA
Operation and installation manual SOLIVIA 2.5 EU G3
Owner boundary
Measurement unit
(1) Meter for power consumption
Z
(2) Meter for power feed-in
with back stop in each case
Remark: A meter can also be employed
which registers both energy directions separately
Electric circuit distributor
Switching equipment
Anti-islanding protection with voltage and
frequency monitoring, as well as network
impedance measurement
Short-circuit protection
Overload protection
=
Individual in-plant generation system in parallel operation without isolated
operation possibility, single-phase feed with anti-islanding protection, separate feed.
Low-voltage network ~ 400 / 230 V
VNB
Customer
Consumer equipment
of the customer
House connection line
House connection box
Owner boundary
Z
Z
Z
(3)
(2)
(1)
~ 400 / 230 V
Switching equipment
Anti-islanding protection with voltage and
frequency monitoring, as well as network
impedance measurement
Photovoltaic
~
Short-circuit protection
generator with
Overload protection
power inverter
=
max. 4.6 kVA
Measurement unit
(1) Meter for power consumption
(2) Meter for power feed-in
with back stop in each case
Remark: A meter can also be
employed which registers both energy
directions separately.
(3) Meter for power take-off of the
customer system
Electric circuit distributor
31