What Happens to a Generator During a Power Surge?

Understanding the Risks of Power Surges

A power surge can be devastating for a generator, particularly one used for whole house standby applications. When a power surge occurs, it can cause a massive spike in electrical current, which can overheat the generator’s internal components, such as the windings and circuit breakers. This can lead to a catastrophic failure of the generator, rendering it inoperable.

Measuring the Risks of Power Surges

To mitigate the risks of power surges, you need to consider the type of generator you’re using and its ability to handle such events. For example, a generator with a 25-kW rating and a 400-volt output can handle brief power surges of up to 100,000 amps. However, this can vary greatly depending on the specific generator model and its design. You can also use surge protectors or voltage regulators to help absorb the excess energy and prevent damage to the generator.

Best Practices for Generator Protection

To protect your generator from power surges, you should follow specific best practices. First, ensure the generator is properly installed and grounded according to the manufacturer’s guidelines. Next, use a surge protector or voltage regulator that matches the generator’s capacity. Additionally, consider using an automatic transfer switch (ATS) that can detect power surges and automatically switch to backup power. Regular maintenance and inspections can also help identify potential issues before they become major problems.