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Protection / Coordination Study: You've already invested in equipment. Why not make use of its full potential?The Coordination study is here to save money. If you've experienced nuisance tripping, or have adjustable trip breakers/relays without documentation supporting the existing settings, a coordination study is a great investment. Don't wait for an outage to find out there's a problem.This study examines the size and settings of protective devices in system. National Electric Code requirements and ANSI/IEEE standards are considered to determine if existing devices are adequately applied. Recommended sizes and/or settings are provided in a written report aimed towards improving system protection and coordination. The Protection / Coordination Study:
If your facility uses adjustable trip circuit breakers and/or relays, do you know what the existing device settings are, and why? In far too many cases, no-one knows what the settings are, where they came from, or whether they make any sense at all. What's Coordination? To put it simply, coordination means that downstream devices (breakers/fuses) should activate before upstream devices. This minimizes the portion of the system effected by a fault or other disturbance. At the substation level, feeder breakers should trip before the main. Likewise, downstream panel breakers should trip before the substation feeder supplying the panel.
"But my equipment's new!" Even new buildings and installations are not immune from problems. Don't assume that proper equipment ratings and settings are present just because the equipment's new. Remember, there's no free lunch. If a coordination study wasn't in the project bid spec, you can be 99% sure you didn't get one. When coupled with the Short Circuit Study this service can provide the answers you need. You'll know where your devices should be set, and where potential problem areas may exist in the system. This analysis is included as a standard part of the Electrical System Base Study. |
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Send email: info @ midwest-ps.com
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