INSTALLATION - COMMISSIONING
49
SOLAR ISOLATION DEVICE(S) TEST – ROOFTOP DC ISOLATOR(S)
This test is performed to ensure the Rooftop DC Isolator(s) are isolating the string(s) from the inverter when
in the OFF position.
1.
Ensure that the Inverter AC Isolator(s) are in the OFF position.
2.
Switch all string DC Isolators to the ON position (Rooftop and Inverter DC Isolators).
3.
Ensure that the PV system is operating under irradiance conditions greater than 500 W/m
2
.
4.
Switch the string Rooftop DC Isolator to the OFF position.
5.
Disconnect string positive and negative DC plug connectors from inverter.
6.
Using a multimeter set on the DC voltage scale, connect multimeter leads between the disconnected
string plugs. Ensure leads are firmly connected. If a DC voltage is present, the Rooftop DC Isolator or
system wiring is faulty and will require replacing or repairing.
7.
Switch the string Rooftop DC Isolator to the ON position. If a DC voltage is not present, the Rooftop DC
Isolator or system wiring is faulty and will require replacing or repairing.
8.
Switch the string Rooftop DC Isolator to the OFF position.
9.
Reconnect string positive and negative DC plug connectors to inverter.
10.
Repeat for each string.
SOLAR ISOLATION DEVICE(S) TEST – INVERTER DC ISOLATOR(S)
This test is performed to ensure the Inverter DC Isolator(s) are isolating the string(s) from the inverter when
in the OFF position.
1.
Ensure that the Inverter AC Isolator(s) is in the OFF position.
2.
Switch all string DC Isolators to the ON position (Rooftop and Inverter DC Isolators).
3.
Ensure that the PV system is operating under irradiance conditions greater than 500 W/m
2
.
4.
Switch the string Inverter DC Isolator to the OFF position.
5.
Disconnect string positive and negative DC plug connectors from inverter.
6.
Using a multimeter set on the DC voltage scale, connect multimeter leads between the disconnected
string plugs. Ensure leads are firmly connected. If a DC voltage is present, the Inverter DC Isolator or
system wiring is faulty and will require replacing or repairing.
7.
Switch the string Inverter DC Isolator to the ON position. If a DC voltage is not present, the Inverter DC
Isolator or system wiring is faulty and will require replacing or repairing.
8.
Switch the string Inverter DC Isolator to the OFF position.
9.
Reconnect string positive and negative DC plug connectors to inverter.
10.
Repeat for each string.
Содержание HSL60P6-PB-1-250
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