Procedures
18. Inspect the coupling
relays.
19. Measure the AC
voltage, i.e. phase to
phase as well as
phase to N and
phase to PE.
20. Measure the auxiliary
power supply.
21. Measure the solar
generator voltage
(DC).
22. Check the polarity of
the DC connection.
23. Measure the earthing
resistance. To do
this, follow the
instructions in the
measuring
equipment operating
manual.
24. Check the grid
characteristics.
25. Check all safety
covers.
86
Desired result
The coupling relays are
snapped in place.
see Specifications,
page 87.
see Specifications,
page 87.
530–1000 V (levels of
performance 200 kVA
and 300 kVA)
580–1000 V (level of
performance 350 kVA)
< 2 Ω
R
A
≤ U
R
/I
A
L
F
Grid characteristics meet
the energy supplier's
specifications.
All safety covers are
fitted and screwed into
place.
Operating manual
Actual result
Transformerless central inverter
Action in case of non-
compliance
Snap the coupling
|
relays in place.
Inspect the
|
installation.
Check the AC grid.
|
Inspect the
|
installation.
Check the AC grid.
|
Inspect the
|
installation.
Check the solar
|
generator.
Inspect the
|
installation.
Check the solar
|
generator.
Check the earth.
|
Change the grid
|
characteristics
appropriately.
Fit safety covers and
|
screw into place.