All You Need to Know about Surge Testing

Surge testing is defined as the process to assess and evaluate the ability of electrical equipment to withstand voltage surges, which are quite sudden, high-voltage spikes in electrical power. These surges can even be caused by lightning strikes or can damage any sensitive electronic components. The following shares why surge testing is important and how it can handle transient events.

Why is Surge Testing Important?

Protecting Equipment

Surge testing is a helpful way to identify weak spots in equipment that could be vulnerable to voltage surges. By spotting and fixing these issues, surge testing helps ensure your equipment remains reliable, even during voltage surges.

Meeting Standards

Many industries follow important standards from IEC and IEEE. These may often comprise certain surge testing requirements for certain equipment. In sensitive environments like medical devices or critical infrastructure, surge testing is especially crucial for safety. It ensures that the equipment doesn’t fail in ways that could endanger people.

How Does Surge Testing Work?

Applying a Surge

Surge testers apply a controlled voltage surge to the equipment under test.

Monitoring the Response

The tester attentively observes the equipment during the trial and carefully responds to the surge, remaining vigilant for any signs of failure, such as voltage breakdown or insulation issues. The results are then thoughtfully checked and reviewed to determine if the equipment can confidently withstand the surge. When necessary, modifications are considered to further improve its surge resistance, promoting better performance and safety.

Applications of Surge Testing

Motors and Generators

Surge testing helps assess the insulation health of windings in generators and motors. It also verifies that surge protection circuits in power supplies are functioning correctly.

Final Thoughts

Electrical insulation failures can often lead to catastrophic consequences—from costly production downtime to dangerous electrical fires and complete equipment breakdown. These failures might happen rarely, and the early signs are often invisible to conventional testing methods. 

Surge testing plays a key role in de-risking the product launches, especially for critical infrastructure sectors where field failures are quite susceptible to operational consequences. Be sure to count on an authorized team of experts to get the best results on surge testing and validation.