SF6 Breaker Maintanance
SF6 Breaker Maintanance
(OP)
What kind, and how often do new (post 2010) dead tank breakers need maintenance? 38kv-362kv class. Looking for any real world insight or documentation on the subject.
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: SF6 Breaker Maintanance
RE: SF6 Breaker Maintanance
RE: SF6 Breaker Maintanance
Based on your first question you're asking about general maintenance requirements, not just the SF6 gas itself?
RE: SF6 Breaker Maintanance
RE: SF6 Breaker Maintanance
RE: SF6 Breaker Maintanance
First and foremost, of course start with the manufacturer's recommendations; we vary from them as time goes on and experience with individual types is gained. The specifics obviously change for the different manufacturers & models of breakers. Depending on the type of operator used (spring, air, hydraulic, etc) the maintenance required can change significantly.
But as a rough summary - monthly patrol checks (record counters, , check gauges, stick head in cabinet as a quick observational check); annual heater and operational checks along with a basic operator inspection (it's cold up here, heaters are important); 5 year checks on density monitors and depending on the operator other pressure switches, etc; and usually around 10 years, major maintenance - usually a major mechanism check (including lubrication), breaker timing and motion analysis, insulation checks (esp at those higher voltages as grading caps are more likely), gas checks/density monitor checks, etc.
RE: SF6 Breaker Maintanance
RE: SF6 Breaker Maintanance
https://www.youtube.com/watch?v=PKXPeTvmVQg
I can understand the delay, its not always easy to schedule an outage.
RE: SF6 Breaker Maintanance
CR
"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
RE: SF6 Breaker Maintanance