Surges, or transients, are brief overvoltage spikes or disturbances of a power waveform that can damage, degrade, or destroy electronic equipment within any home, commercial building, or industrial and manufacturing facilities. Transients can reach amplitudes of tens of thousands of volts. Most equipment is designed to handle minor variations in their standard operating voltage. However, surges can be very damaging to nearly all equipment.
A typical building experiences multiple power surges every day.
The average cost of downtime caused by power surge is $130,000 per event.
Symptoms of Power Surges
Circuit board failure
Phantom equipment restart
Causes of Power Surges
60 – 80% of power surges originate within facilities. These are typically caused from large loads switching off and on
Switching of electrical loads from
Contactor, relay & breaker operations
Switching of capacitor banks and loads (e.g. power factor correction)
Discharge of inductive devices (motors, transformers, etc.)