Build power system reliability with breaker coordination

Egon Hillermann
Building Products
ABB Electrification Products Division

Facility managers seek to isolate electrical outages to the smallest possible area. Current protective systems often don’t do that. Read this article to learn how breaker coordination limits faults to a branch closest to the fault while protecting the rest of the network.

Imagine the plumbing system in your home developing a leak in an outside spigot that requires attention. Instead of being able to turn off a stop valve controlling that spigot, your only option is to turn off the water main for the whole house. That would clearly be unacceptable.

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