Hot Mill Volt/VAr Support
6.9 kV direct Connect
Single Stand Reversing
3minutes, 7 passes, 120 adjustments
Millions of relaible Operations
Via Remote Monitoring
5,000 HP Shredder Support
Dynamic support since 2006
Meets utility requirements
15% increased tons/hour

A Dynamic VAR compensation system is a major capital purchase.  With proper maintenance and support, such system have indefinite lives. T-Star routinely encounters systems in the field that are 15 years old and older, offering both routine maintenance and repair services as well as upgrade and life extension services.

We are aware of systems that have ceased operation due to customer changes (often because the customer ceased operations).
We're NOT aware of any systems that have "worn out" since theses are solid state systems without any moving parts in their normal daily operation.  One system we are aware has operated more than 8,000,000,000 (that's right, 8 billion) times, and its still ticking along like new.

So, what's reasonable for maintenance costs, repair frequency, and system availability?
What requirements does having a system like this place on local personnel?

Good Questions, all.

Reliability is the intersection of two frequently-used metrics:

MTBF - Mean time to failure and
MTTR - Mean time to repair.

Paying attention to both is important.  It leads to an overall availability of 99.998% for owners that do not use a "run to fail" approach.  Here's how they do that:

  • Along with the initial purchase, they spend an additional 5-10% on spares.  This ensures that parts are available for "swap-out" when needed.
  • They participate in T-Star's remote maintenance and monitoring program, relying on T-Star for regular remote check-ups and support in event of problems.
  • They identify local maintenance resources, trained and supported by T-Star to perform routine maintenance and swap-out parts as directed by remote T-Star personnel.

And it just works.