Growatt New Energy.CO.LTD
www.ginverter.com
24
Inverters for use with ungrounded arrays shall have means to measure the DC insulation
resistance from the PV input (array) to ground before starting operation.
[Ventilation requirement]
In operation, inverter will produce a lot of heat. When ambient temperature is too high, the
electrical property of the equipment may be affected, the equipment may even be damaged.
Therefore, the heat release shall be fully considered in designing
the control room to ensure
operation of the equipment in high efficiency.
[Ventilation environment]
To satisfy the ventilation requirement of inverter, its installation environment shall meet the
following conditions:
※
Inverter shall be prevented from being installed in the place of poor ventilation condition and
insufficient air flow;
※
The air inlet shall have enough air supplementation.
[Ventilation equipment]
To ensure safe and reliable operation of the equipment, the ambient temperature must be within
the permission range –25°C
～
55°C, therefore, appropriate ventilation devices must be equipped
with to release the heat generated by the equipment. We suggest the ventilation rate is more than
2750m³/h.
● There must be ventilation equipment inside the distribution room to ensure release of the waste
heat generated by the inverter from the equipment, and allow for maximum ambient environment
temperature. This can be realized from installation of exhaust devices;
● Another fan can be added at the air duct outlet to exhaust the air out and ensure balanced
pressure;
● The direction of the air outlet shall be selected according to the local actual wind direction;
● Pay attention to the dustproof measures and waterproof design at the air inlet and outlet;
