2. Typical System Configuration
KP100L Quick Installation Guideline
12
The KP100L is designed with grid network system type TT, TN. Then If you use transformer, connect the Neutral to
the ground as shown in the figure below.
■
Applicable solar module
The KP100L is designed to control the voltage of negative pole on solar module as same voltage level
as Neutral of grid as shown in figure below. This can be achieved by new inverter circuit (ZCC).
As a result, the voltage of negative pole on solar module is approx. zero. According to this function,
you can use the solar module which does not allow negative voltage on solar module.
Applicable type of solar module is shown in the table below.
Solar module manufacture
requirement
Type of solar module
Applicable or not
(1) No requirement
Conventional silicon-based
solar modules
KP100L can be used.
(2) No negative voltages
on solar module
Some thin-film or silicon
modules
Basically, KP100L can be used.
(3) Earthing of negative
pole on solar module
Some thin-film or silicon
modules
KP100L can not be used.
(4) No positive voltages on
solar module
Specific solar module
KP100L can not be used.
(5) Earthing of positive
pole on solar module
Specific solar module
KP100L can not be used.
Grid
N
3P
3P+N
Neutral in KP100L side should be
connected to the ground.
Grid
N
3P+N
3P+N
Note: Dec, 2010
KP100L does not have the compatibility with thin-film module at this moment.
The compatibility is under evaluation.
