Forums Forums Traffic Signals UPS

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  • #3277
    MBest
    Participant

    I think from memory we spec’d at least 8 hours on operation. It depends what you are using the UPS for though, is it something for just covering general short term power faults or is it something that is being monitored and then used to give time for traffic management to be deployed.

    #3276
    neilw
    Participant

    Thanks Mike for the advice.
    Did you get the supplier to advise on the number of batteries required or did you specify it? obviously you need to specify how long you require back up power for.

    #3275
    MBest
    Participant

    Hi Neil,

    I’ve used the GE and the Siemens UPS systems in the past, both at complex hamburger junctions as back up to give time for temporary traffic management to be deployed. From an operational point of view they both worked the same, both had a good series of operation outputs that could be picked up by remote monitoring and both switched over seamlessly from mains to battery power.

    The GE system did requires a pretty large cabinet, the link below should show you its the two door cabinet. Not all the space inside was used for the batteries but the space was needed to keep air flow around the system. The Siemens system fitted nicely into a standard 900 cabinet and from that point of view had a much smaller visual impact.

    From my experience getting the remote monitoring is important as if you don’t know its on batteries its not much point. Along with the standard fault bits I think we went for ‘on battery’ and ‘1hr battery’ left. That way we could tell the TM crew to get ready and then to deploy the TM before just before signals went off.

    Mike

    https://www.google.co.uk/maps/@51.7219092,-1.2342761,3a,49.5y,171.65h,76.8t/data=!3m6!1e1!3m4!1s9N7bm2Et7NhhJEtJmivJFQ!2e0!7i13312!8i6656

    #3274
    neilw
    Participant

    Thanks for the advice Chris.
    Was hoping for more advice on which systems people are using and what seems to be working well with certain controllers.

    Thanks

    #3272
    Chris Pearson
    Participant

    The only thing I would say about UPS is to put it in a separate cabinet with forced air management, rather than in the controller directly. Controllers are full enough without sticking more kit in there!

    Ritherdon have created the RH850 comms cab for BwD as we have an extensive private fibre and CCTV network for UTC which is backed up with UPS.

    #1059
    neilw
    Participant

    Hello All,

    Looking to implement our 1st UPS system and was wondering if those who already have some in place could give me guidance and advice on what to specify and what pitfalls you have encountered if any!
    The controller is a PTC1 and we will use a Siemens UTC system to monitor.

    Thanks

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