Inverter Failure

A SOLAR INVERTER is a designed apparatus that carries out or convert solar panel output, Direct Current (DC), into Alternating Current (AC) electricity that home appliances can better use from. In other words, a solar inverter is a mechanism takes radiant energy from the sun via the solar panels and converts or turns the radiant collected into usable energy for home appliances. Over the time, there have been common factors leading the device to failure. These are common points of failure of the device found, after several and careful inspection to the reason why they fail out.

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Mostly, because of poor workmanship and materials, this may result in water entry and damage to the inverter. This damage as a result of inferior products used throughout the installation, leakage of DC, water in the AC and DC enclosure, unsealed penetrations into any enclosures, DC breaker terminals corrosion, under –sized breakers, solar panels incorrectly mounted on roof, solar panels on roof incorrectly secured and are loose fixing, inverter and boxes mounted directly to building walls through self-tapping screws into the 2mm tin clapping, can cause or lead to more severe and deadly issues like electrocution and fire. Thus, we can, therefore, conclude from a vivid observation that cheap products can cost you more than they are worth, causing a serious threat to precious life.

Other causes of inverter failure are:

  1. Improper Loading
  2. The fuses are possible to be damaged or defective if this is the case. The fuses are to be checked and should not be frayed or damaged. Another possibility is that breakers may have been tripped.

  3. Fault Line is On but AC Load Not Working
  4. A shutdown might have occurred due to an overload in the system surpassing the solar inverters surge capacity.

  5. Reverse Polarity Connection on Solar Inverter
  6. The battery connection should be checked to avoid inverter being damaged and needs to be replaced. Always check connections of batteries when they due for replacement.

  7. Improper Disconnection of Loads
  8. This is when the controller is not receiving proper battery voltage The battery connection should be checked. keeping batteries in check should be a way of the routine of maintenance so as to know if they are due for replacement.

  9. Array Fuse Short Circuits

During connection, batteries might have been connected when a short circuit test was performed. For that, batteries should be disconnected in order to perform the test. The rating from the photovoltaic array may have surpassed the rating. So another controller in parallel should be added if there is a need or replace it with a controller that can able to accommodate the rating.

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