SMA SMART LOAD 6000, Техническое описание

Страница: 19 / 40

SMA Solar Technology AG Electrical Connection
Technical Description SL6000-TEN081820 19
5.3 Connecting the Resistor
Cabling notes
The load resistor should be connected using a cable with the following properties:
• Shielded
• Cable length: maximum 20 m
• Cross section: at least 1.5 mm
2
Load resistor
• The resistance value must be between 19
Ω
and 26
Ω
.
• The load resistor must be suitable for 230 V DC voltage.
• Only use resistors that are suitable for pulsed DC voltages.
Load resistors with a power consumption of 6 kW can be purchased from SMA.
If... Then...
Three-phase operation... • Connect 3 load resistors with a power consumption of 2
kW, see "Connection procedure for three load resistors"
(Page 20).
Single-phase operation... • Connect 1 load resistor with a power consumption of 6 kW,
see "Connection procedure for one load resistor" (Page
21).
or
• Connect 3 load resistors with a power consumption of 2
kW, see "Connection procedure for three load resistors"
(Page 20).
Exceeding the resistance value
If the resistance value of 26
Ω
is exceeded, achieving the nominal power of the
Smart Load can no longer be ensured.
NOTICE!
An incorrect resistance value will irreparably damage the Smart Load.
• Ensure that the resistance value is never below 19
Ω
.