Checking The Insulation With A Tester - Aros 10000P Manual De Instrucciones

11.1 Checking the insulation with a tester

Disconnect the inverter and proceed as shown below, one string at a time:
+
-
600
Measure the total
voltage
VOLTAGE
TOT
The point in the string where insulation is lacking can be estimated by
calculating the two values:
PANEL
POSITION 1
And
VOLTAGE
PANEL
POSITION 2
VOLTAGE
Where PANEL
POSITION 1
counted from the positive pole. In the images, the ground leakage would be
between the first and second panel from the negative pole.
Warning: Dangerous voltage exists on both DC input and AC output
wires and connections. For the end-user: Please do NOT touch any
live parts.
DCV
COM
string Short circuit the negative string
pole to ground, then remove
the short and measure the
voltage between ground and
negative pole: if it slowly
decreases from zero, there is a
leakage.
measurement
reading remains stable
VOLTAGE
VOLTAGE
NEG
PANEL
VOLTAGE
TOT
POS
PANEL
TOT
is counted from the negative pole and PANEL
- ENGLISH -
+
-
-150
DCV
COM
Take
when
NEG
NUMBER
NUMBER
+
-
Short circuit the positive string
pole to ground, then remove
the short and measure the
voltage between ground and
positive pole:
increases from zero, there is a
the leakage.
the measurement
reading remains stable
VOLTAGE
POS
450
DCV
COM
if it slowly
Take the
when the
is
POSITION 2
Page 101