INVERTER

1. Service Ability

1.1. Web based

1.2. IOT

1.3. Notification

1.4. Replaceable module

2. Types of Inverter

2.1. String - for residential use

2.2. Central - for solar farm

2.3. Micro - for each solar panel

2.4. Hybrid - multi-mode

2.5. Battery - convert battery to AC

3. Inverter Specification

3.1. Output Power Rating

3.1.1. Low

3.1.2. Medium

3.1.3. High

3.2. Waveform

3.2.1. Sine/Pure

3.2.2. Quasi-sine

3.2.3. Square

3.3. Single / Three Phase

3.4. Continuous / Backup Duty

4. Inverter Sizing

4.1. Battery Bank Voltage

4.1.1. Higher voltage Larger Inverter needed

4.2. Power Rating

4.2.1. 3 times of power than load needs

4.3. Waveform

4.3.1. More expensive and better inverter use pure sine wave.

4.4. Surge Capability

4.4.1. Must be able to cope with the starting current

4.5. Efficiency

4.5.1. 80% - 90%

5. Inpection

5.1. Measure Output

5.2. Measure Input

5.3. Check Fuse

6. Long lasting 10 to 20 years

7. To convert DC to AC

8. Turn ON & OFF DC supply according to suitable frequency in AC system and boost voltage up to 220V and more

9. Inverter Sizing Calculation

9.1. P = total watts x 3 times (surge) / 0.9 power factor

10. Troubleshooting

11. Buzzing or Humming & Equipment failure

11.1. Inverter not produce pure since wave

12. Trip & Sudden Lost

12.1. Temperature issue of inverter