Most factory owners only think about their APFC panel when the electricity bill comes with a penalty. By then, the panel has usually been struggling for months. This usually happens when businesses or industries are unaware of the repairing needs of the panel. Or it may also occur when the industrial load increases, which requires upgrading of the panel; however, industries often ignore this. As one of the reliable APFC panel manufacturers in India serving this industry since 1999, we always advise buyers to consider timely repairs and upgrades if they do not wish to face any problems in the working of APFC panels.
In this blog, we are highlighting all the signs that will help you understand whether your APFC panel needs an upgrade or needs repairing. Knowing these signs will help you make the right decision as required for your APFC industrial panel.
What Does an APFC Panel Actually Do?
An APFC (Automatic Power Factor Correction) panel keeps your power factor close to unity. It does this by switching capacitor banks in and out as your load changes through the day. A reliable panel saves you from low power factor penalties, helps reduce losses in cables and transformers, and frees up capacity you are already paying for.
Signs Your APFC Panel Needs an Upgrade
An upgrade becomes necessary when your panel doesn’t meet the present industrial requirements. As one of the leading APFC Panel manufacturers, we always ask customers at the time of purchase about any future expansion plans. It helps us offer them the right size of APFC panel without making them upgrade it after a few months. Let’s discover some of the signs to understand when your panel needs an upgrade.
- Increase in industrial load – If you have recently added a new CNC machine, a compressor, or another production line to your industrial setup, it is natural to expect that load will increase. So, a panel sized for your plant five years ago may now be too small. Businesses must check the kVAR rating against current load to determine it.
- Power factor keeps dipping below 0.95 – If the display shows a reading that hovers at 0.88 or 0.90 during peak hours, the controller or capacitor steps may need attention.
- Capacitors are failing too often – One failure in a few years is normal, but replacing capacitors every few months is not. This usually points to harmonics or overloading, and the fix is often detuned reactors or heavy-duty capacitors, not a whole new panel.
- Controller is old or slow – Older relay-based controllers cannot respond well to fast-changing loads. That is why swapping to a modern microprocessor-based controller becomes necessary; however, it won’t cost a lot.
- Contactors are burning out – Capacitor switching creates high inrush current. If contactors are welding or pitting, you probably need capacitor-duty contactors or thyristor switching.
Signs You Need a New APFC Panel
At times, repairing is not enough, and that is when the need for a new APFC panel arises. Below, we are sharing some of the common signs that show that you need to invest in a new APFC panel now.
- The enclosure of the panel is rusted, loose, or showing burn marks inside.
- Busbars and cables are discolouring or overheating.
- Spare parts for the old panel are hard to find.
- You have changed your transformer or shifted to a new load profile completely.
- The panel trips often, and each repair is costing more than the last one.
- Safety has become a major concern with risk of catching fire.
Conclusion
With the above shared signs, businesses may not understand that not every problem needs a new APFC panel. If your plant has grown or the controller is outdated, an upgrade or repair can fix it at lower cost. But if the panel is old, damaged, or unsafe, replacing it is the right choice. However, when replacing it, ensure that you consider only the top APFC panel manufacturers and invest in the ones that also meet future expansion needs and are available with a warranty. We at Rashmi Electricals (Relec) offer quality-tested APFC panels with a warranty on each unit. We also customize these panels by understanding specific load requirements shared by businesses.
FAQs – Frequently Asked Questions
With regular maintenance, the panel body can last 10 to 15 years. Capacitors and contactors wear out sooner, usually in 5 to 8 years depending on load and heat.
It depends on the space, busbar rating, and incoming supply. A site check will tell you if the panel can take it.
Most plants aim for 0.95 to 0.99. Staying close to unity avoids penalties and may even earn you an incentive from your electricity board.
Once every six months is a good habit, and you must check connections, capacitor condition, contactors, and controller settings.
You will usually see penalties on your electricity bill, and your transformer and cables will run hotter than they should. Over time, that means higher losses and a shorter life for your equipment.