Inverter

Q1. What is an inverter?

An inverter is an electrical device that converts DC (Direct Current) into AC (Alternating Current), enabling the use of DC sources like batteries or solar panels to power AC appliances.

Q2. Where are inverters used?

Solar power systems

UPS (Uninterruptible Power Supply)

Industrial automation (VFD – Variable Frequency Drives)

Home backup systems

Q3. What are the main types of inverters?

Square Wave Inverter – simple, low-cost, but less efficient.

Modified Sine Wave Inverter – better performance, suitable for most appliances.

Grid-Tied Inverter – feeds solar/wind power into the utility grid.

Hybrid Inverter – supports both grid-tied and off-grid modes.

Q4. How do I choose the right inverter for my needs?

Total load requirement (watts/kVA)

Battery voltage & capacity

Type of appliances (sensitive or general)

Pure sine wave vs. modified sine wave

Q5. What is inverter efficiency?

It is the ratio of AC output power to DC input power, expressed in %. Modern inverters usually have 85–98% efficiency.

Q6. How do I maintain an inverter?

Keep batteries charged and topped up (for lead-acid type).

Place inverter in a ventilated, dust-free environment.

Check wiring and connections regularly.

Avoid overloading beyond rated capacity.