Meaning
Power quality techniques reduce the frequency and severity of brief drops in electrical pressure that can disrupt industrial processes. Voltage sag mitigation involves installing hardware that can boost power instantly when a dip is detected. These sags are usually caused by lightning strikes or large motors starting nearby.
They are the leading cause of unplanned downtime in automated factories.
Supply Stability
Sensitive electronic controllers often shut down if the power drops by even ten percent for a few milliseconds. By using voltage sag mitigation, a facility ensures that these machines stay online through minor grid disturbances. This is achieved using capacitors or flywheels that store small amounts of energy.
The response time must be nearly instantaneous.
Hardware Correction
Different solutions like active voltage conditioners or uninterruptible power supplies provide varying levels of protection. The choice of voltage sag mitigation depends on the duration and depth of the expected sags. Some devices only correct the voltage, while others provide full battery backup.
This hardware is a standard part of modern electrical design.
Operational Reliability
Reducing the number of resets and scrap parts improves the overall efficiency of the plant. Since voltage sag mitigation prevents the sudden stopping of assembly lines, it pays for itself by avoiding lost production time. Each avoided event saves thousands in labor and material costs.
This is a measurable return on the investment.