Distribution Components & Works

What we do

Problems we help address

• Switching, protection, transformation and metering are separate components that have to work together; a weak point in one shows up in the installation as a whole.
• Protection that has not been functionally tested has not been shown to operate.
• These components are worked on inside an installation that is already built, so a replacement has to suit what is there.

How we approach the work

• Bestcor supplies and works on load break switches, power fuse assemblies, transformers, relay protection, switchgear and metering.
• Functional testing of relay protection covers low-, medium- and high-voltage equipment.
• The measurement set for these components includes relay testing, current and potential transformer analysis, contact resistance, breaker timing, SF6 gas analysis and surge comparison.

Why it matters

• Protection and metering are assessed alongside the switchgear they work with, so the switching, protection and measurement functions are treated as one installation.
• Functional testing of relay protection gives a basis for deciding whether protection equipment needs attention.

Systems and equipment covered

• Load break switches
• Power fuse assemblies
• Transformers
• Relay protection
• Switchgear
• Metering