Tag: circuit breaker

A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and interrupt current flow. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation. Circuit breakers are made in varying sizes, from small devices that protect an individual household appliance up to large switchgear designed to protect high voltage circuits feeding an entire city.

The Strongest Link in the Chain

The Strongest Link in the Chain

Renewable energy—and solar energy in par­ticular—has a problem. Because it is subject to the vagaries of sunshine and wind for power generation, it is often not available when it is needed most. For those nighttime hours when the sun is not available and cloudy days when sunlight is minimal, provisions

New Technology Improves Switchgear Performance

New Technology Improves Switchgear Performance

It’s no secret to the manufacturers who provide switchgear that their products are in ever-greater demand today. That’s because switchgear plays such a critical role in the operation of uninterruptable power supply systems. And these days, there are more end-users than ever—data centers, hospitals,financial institutions, manufacturers—that can’t afford to lose

Switchgear Maintenance

Switchgear Maintenance

You already know how important it is to perform regular preventive maintenance on your onsite power system. It doesn’t pay to install a backup generator to protect yourself from a failing public grid if that onsite system doesn’t work when called upon.

So you regularly test your onsite power system. You

Switchgear Intelligence

Switchgear Intelligence

It’s no secret to the manufacturers who provide switchgear that their products are in ever-greater demand today. That’s because switchgear plays such a critical role in the operation of uninterruptable power supply systems. And these days, there are more end-users than ever—data centers, hospitals,financial institutions, manufacturers—that can’t afford to lose

Switchgear Arc Protection and Resistance

Switchgear Arc Protection and Resistance

Arc flash events in electrical distribution systems can be devastating, costing up to $15 million in direct damages and indirect costs, such as health care, workers compensation, and others (EPRI 1999). An arc flash can generate temperatures over 35,000°F and projectile-producing pressures equivalent to 700 miles per hour, and is

White Paper: Commercial vs. Industrial UPS

White Paper: Commercial vs. Industrial UPS

Online Uninterruptible Power Systems (UPS) with capacities of 5 to 150 kVA have been available for almost 40 years, and the market continues to grow at a 12% annual rate as businesses and the industry become more dependent on the continuous flow of clean, reliable power.

White Paper: Commercial vs. Industrial UPS

White Paper: Commercial vs. Industrial UPS

Online Uninterruptible Power Systems (UPS) with capacities of 5 to 150 kVA have been available for almost 40 years, and the market continues to grow at a 12% annual rate as businesses and the industry become more dependent on the continuous flow of clean, reliable power.

Smart Developments in Road Construction: The Newest Advances in Telematics

Smart Developments in Road Construction: The Newest Advances in Telematics

Technology has become interwoven into the means of production and how road construction businesses are run. What technology has done is provide valuable information—real-time information, which allows for better decisions to be made. Access to information benefits the road construction contractor in all areas from the heavy-equipment operator to the site superintendent to

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