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  • Users: CBravo
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  1. CBravo

    Electronic Ballast Failure

    thread248-278233 We are still experiencing ballast failures even after installing 2 pole motion sensors on our 4 lamp T8 fixtures. I'm thinking that because each ballast has two hots and no grounded supply conductors and the 2 pole motion sensor opens up both L1 and L2, the energy in the lamps...
  2. CBravo

    Using 60 Hz. equipment on 50 Hz.

    We use a 20 Kw RF oven that uses a TH-6 tube to heat phenolic resin for a molding operation on our 60 Hz. supply system. We need to relocate a manufactuing operation to India where the electrical supply is 50 Hz. Would a huge variable frequency drive be suitable to adapt the supply? I'm...
  3. CBravo

    Electronic Lighting Balasts

    Our plant is undergoing a lighting upgrade to T8 fixtures from MH fixtures. All is well in the front of the plant where the lighting uses one 480 VAC phase to neutral at 277 VAC. The ballasts are rated to work form 120 to 300 VAC. No taps, they are intellivolt electronic ballasts. The ballasts...
  4. CBravo

    F & FW RSLogix

    When I look at the input and output data files, I see some words start with "F" some with "FW" and some have nothing. I'm guessing it has something to do with the Panelview reading and writing to those I/O. Is that correct?
  5. CBravo

    Filter Caps

    How can I calculate the current draw of a filter capacitor bank. We have a customer who wants us to electroplate at less than 5% ripple. We are at about 30% ripple now. We plate at 6.5 DC volts and 11,000 amps with 2.5 AC volts ripple. So how much capacitance would be needed to smooth it out to...

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