Inverter sunstroke precautions

So, how do the inverter sunstroke work smoothly through the summer?

Causes and Countermeasures of frequency converter heating

First, the fan card resistance or damage

Reason: when the inverter fan is bad, a large amount of heat accumulated inside the inverter can not go out.

Countermeasures: replace fan.

Two, heavy load

Reason: when the inverter with the load is too heavy (small horse drawn carts), will produce too much current, resulting in a lot of heat, and sometimes the inverter will overheat alarm.

Countermeasures: to reduce the load or increase the capacity of the inverter.

Three, the ambient temperature is too high

Reason: the inverter is composed of a number of electronic components, the work will produce a lot of heat, especially in the high-frequency state of IGBT, the heat generated will be more. If the ambient temperature is too high, it will lead to the internal components of the inverter temperature is too high, in order to protect the inverter internal circuit, the frequency converter will report high temperature failure and downtime.

Countermeasures: to reduce the temperature of the place where the inverter, such as the installation of air conditioning or fans, such as forced cooling measures.

Four, poor ventilation inverter

Cause: such as the frequency of the wind channel itself or the blockage of the control cabinet air duct is blocked, it will affect the inverter internal heat dissipation, resulting in inverter overheating alarm.

Countermeasures: regular maintenance of frequency converter, to clear the garbage of its air duct, air duct.

This shows that the inverter maintenance and maintenance is essential, how can we reduce the failure rate, so that the frequency converter safely through the high-temperature sauna days?

Summer maintenance inverter introduction:

First, check the running state of the inverter, the voltage and current value in the normal range.

Two, carefully monitor and record the temperature of the room, the ambient temperature is generally between -10 to 40 DEG C, more than 40 degrees Celsius need to reduce the use of.

Three, avoid direct sunlight, moisture and water, summer is the rainy season, should prevent the rainwater from entering the inside drive (such as rain wind outlet into the road).

Four, frequency converter installation:

(1) the temperature is high in summer, and the ventilation and heat dissipation of the installation site should be strengthened. To ensure that the surrounding air does not contain excessive dust, acid, salt, corrosive and explosive gases.

(2) in order to maintain good ventilation, inverter and surrounding barrier distance should meet: below for more than 10 cm.

(3) in order to improve the cooling effect, all frequency converter should be installed vertically, it is best to install the protective net cover on the top of the inverter air outlet to prevent the foreign body from falling into the air outlet.

(4) when a control cabinet is equipped with two or more than two inverter, should be installed side by side (horizontal), such as the vertical arrangement must be used, should be installed in the diaphragm between the two inverters, to avoid the out of the hot air into the inverter frequency converter in the above.