Understanding Overvoltage and Undervoltage Protection in Modern Electrical Systems
Voltage stability is critical in all electrical systems, including those found in homes, companies, and industrial facilities. Too much or too little voltage can severely damage equipment, interrupt operations, and pose major safety hazards. That is why overvoltage and undervoltage protection is not a luxury, but a requirement.
Selfguard Automation and Controls designs and manufactures automation products that prioritise safety, dependability, and efficiency.
What Is Overvoltage and Undervoltage?
- Overvoltage: occurs when the voltage in a system exceeds its rated limit. Lightning strikes, unexpected load decreases, and defective equipment can all contribute to this phenomenon. Prolonged overvoltage can overheat circuits, damage delicate electronics, and even cause fires.
- Undervoltage: occurs when the supply voltage decreases below the necessary level. Overloaded circuits, insufficient grid supply, and lengthy transmission lengths are also common reasons. This can result in poor equipment performance, overheating of motors, and abrupt shutdowns.
Both conditions can silently degrade your electrical systems—unless proper protection is in place.
Why Voltage Protection Matters
Unstable voltage can cause:
- Permanent damage to motors, transformers, and electrical equipment.
- Reduced efficiency and production.
- Unscheduled downtime and additional maintenance
- Electrical and fire threats
Industrial plants, industrial complexes, and even agricultural installations rely on constant electricity to keep devices functioning smoothly. Here's where Selfguard's automation solutions come in.
How Selfguard Enhances Voltage Protection
At Selfguard, we integrate overvoltage and undervoltage protection features into our power automation products to ensure stable and secure operations:
Automatic Transfer Switches
We recommend using an Automatic Transfer Switch (ATS) with built-in voltage monitoring for under-voltage protection and ensuring safe voltage levels before switching the load.
Generator Control Panels with Safety Built-In
Selfguard's generator control panel are intended to detect voltage changes and respond quickly, safeguarding your equipment from dangerous situations. The remote start/stop and fault indication functions provide customers with more control and visibility.
Overload and Short Circuit Protection
Along with voltage monitoring, our solutions provide overload, short circuit, and reverse phase protection, providing a full safety net for your electrical systems.
Why Choose Selfguard?
With years of expertise in the power automation industry, Selfguard Automation and Controls has built a reputation for quality, durability, and innovation. Our goods are trusted by companies, organisations, and agricultural enterprises throughout India. We continue to set the standard in electrical automation, assisting our clients in avoiding the hazards of voltage instability and focusing on what they do best.
Power Your System with Confidence
Don't let overvoltage or undervoltage take your system by surprise. Explore Selfguard's automation products and ensure the safety of your operations through precise engineering.