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  1. bb3030

    Intermittent Generator Differential Fault

    Look at your C phase neutral waveform. It is distorted. Neutral current from ct should cancel phase current from ct (180 degrees out of phase)
  2. bb3030

    vfd noise on xducer

    I am on a diesel electric boat that has vfd's controlling main propulsion. The boat has 4 1700 kw generators - 480 volts, 60 hz. Multi-tek multifunction xducers are monitoring each generator and sending info to a power management system via modbus. When drives go above 80%, generator xducers...
  3. bb3030

    Test Equipment Needed

    I haven't been there yet - scheduled to go Tuesday. The platform has 2 600kw gens - 1 running, 1 in standby. It is plc controlled. Any shutdown from the plc is annunciated. The setup with a Basler GPS-100 shows a 27 and 81U alarm when shutdown. (I may change this to block alarms when...
  4. bb3030

    Test Equipment Needed

    Thanks for the replies. Are there modules for monitoring ac voltage (480) and ct secondary currents? Mostly need it for 120 vac, 24 vdc, 4-20ma. Thanks again BB
  5. bb3030

    Test Equipment Needed

    The generator runs on natural gas on an offshore platform. It is possible that the fuel valve closes...another thing to monitor. Just looking for a good recorder to give me a real time sequence of events. BB
  6. bb3030

    Test Equipment Needed

    I am troubleshooting an intermittent generator problem. Information from customer is generator shuts down after running approx 6 hours. Only alarm is under voltage. Not sure if this is a secondary alarm coming in after an engine problem occurs. I am looking for a multi channel recorder to...

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