What is new about this back-up system?

  But what if a control circuit loses power?

  Surely there must be some single point of failure?

  Is this practical and proven for a building supply?

  Can the system be fitted retrospectively?

  Can complex PLC controls be used?

  Then how do we know when there is a fault?

  Expensive?

  And interlocking mains and generator inputs?

  How can I evaluate the benefits to my particular application?

What is new about this back-up system?

But what if a control circuit loses power?

Our systems still work correctly. This is why aircraft Auto-land systems have used triplex techniques for very complex controls for over 35 years.

Surely there must be some single point of failure?

 No. Total failure of any one component, connection, or any PLC fault, will not affect correct operation.

Is this practical and proven for a building supply?

Yes. A Triplex system was installed at Chase Manhattan Bank nearly three years ago. Ask the maintenance men.

Can the system be fitted retrospectively?

Yes. We can convert an existing system, with a shutdown time of hours rather than days.

Can complex PLC controls be used?

Yes. For the new HSBC building at Canary Wharf, five 2.5MW generators, 11 ATS units, and many large distribution boards, are controlled and switched using a Triplex PLC system. Total failure of any component or control circuit power supply, or a PLC fault of any kind, does not affect correct operation.

Then how do we know when there is a fault?

You are told. A comprehensive monitoring system records the area of the problem and time it occurred. The fault can be corrected at a convenient time without shutdown or interruption.

Expensive?

No. But loss of alternative supply is expensive.

And interlocking mains and generator inputs?

Incorporated. The system is designed to work with ultra-reliable interlocking, that will still operate correctly with one control circuit power failure, yet allows other ACB controls to be added.

How can I evaluate the benefits to my particular application?

You don't need to. We do. We will visit your site and prepare a report, detailing items causing the greatest risks, and offering practical and costed solutions.