Steca coolcept StecaGrid 1500, Инструкция по установке и эксплуатации

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The reactive power characteristic curve must be set during 1st
commissioning if this is prescribed for the previously selected
country. The following applies:
n
3 characteristic curves are available for selection (Fig. left):
–
Default. char. curve
(pre-defined)
–
Enter char. curve
(manually adjustable)
–
Char. curve cos φ = 1
(pre-defined)
n
After configuration, the characteristic curve is displayed as a
graph (example in Fig. left).
①
x-axis, output power P in %
②
y-axis, phase shift cos
φ
③
Nodes (in example: 4 nodes)
④
Arrow symbol Overexcitation
⑤
Arrow symbol Underexcitation
Technical details
n
Each characteristic curve is defined by 2 to 8 nodes.
n
A node is defined by the output power P of the inverter (x-axis)
and the associated phase shift (y-axis).
n
The phase shift can be set over a range of 0.95 (overexcitation)
through 1.00 (no phase shift) to 0.95 (underexcitation).
n
The type of phase shift is shown in the graph using arrow
symbols defined as follows (defined from the point of view of
the inverter):
Overexcitation, inductive
Underexcitation, capacitive
n The 3 characteristic curves available for selection have the
following properties:
Default char. curve
: pre-defined according to the selected
country (example in Fig. left).
Char. curve φ = 1
: pre-defined with cos
φ
=
constantly 1.00. This characteristic curve must be selected if no
reactive power control is to be performed on the device.
Enter char. curve
: The number of nodes and their x/y
values can be configured. Exceptions: The first node is always at
x (P %) = 0 %, the last always at x (P %) = 100 %.
Service technicians can use this menu item for changing additional
MSD parameters.
3.4 Cooling
The internal temperature control system prevents excessive
operating temperatures. When the internal temperature is too high,
the inverter adjusts the power consumption from the PV generators
to reduce the heat dissipation and operating temperature.
All parameters
EN
747,431 | Z09.2 | 18/02/2016 21