LIVOLTEK GT3-17K-D, Руководство пользователя

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Alarm Name Measures Recommended Causes
8 2 The Inverter Troubleshooting
.
When inverter enters in shutdown mode abnormally the alarm light is illuminated Table 8 2
, . .
describes the troubleshooting measures for common fault alarms in the inverter
.
Grid
Over Voltage
Grid
Under Voltage
Over
Frequency
Under
Frequency
PV Over
Voltage
The grid voltage
exceeds its
allowable range
.
PV modules input
voltage exceeds
the inverter’s
allowable range
.
1 If the alarm occurs accidentally possibly the
. ,
power grid is abnormal accidentally No extra
.
action is needed
.
. ,
2 If the alarm occurs repeatedly contact the local
power station After receiving approval of the local
.
power bureau revise the electrical protection parameters
,
setting on the inverter through the mobile APP
.
. ,
3 If the alarm persists for a long time check whether
the AC circuit breaker / AC terminals is disconnected
or not or if the grid has a power outage
, .
Check the number of PV modules and adjust it if need
.
PV Under
Voltage
PV modules input
voltage is under
the inverter’s
defaulted
protection value
.
1 When sunlight intensity weakens PV modules
. ,
voltage decreases No action is needed
. .
.
2 If such phenomena occur when sunlight intensity
does not weaken check if there is short circuit open
, ,
circuit etc in the PV strings
. .
Insulation
Resistance
Abnormal
A short circuit
exists between
PV strings and
protection ground
.
PV strings are
installed in a
long-term moist
environment
.
1 Check the insulation resistance against the ground
.
for the PV strings If a short circuit has occurred
. ,
.
rectify the fault
2 If the insulation resistance against the ground is
.
less than the default value in a rainy environment set
,
Insulation resistance protection on mobile APP
.
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