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  1. EmergencyPowered

    Securing 4160 cables inside of MCC.

    Hey Experts, I have been asked by a customer if this is kosher? Where one may usually find more elaborate clamping and bracing of 4160v cable terminations, just past this a "METAL HOSE CLAMP" is used to group the cables on the internal routing to lugs. I see no obvious problem, everything is...
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    GE Fanuc PLC guy applying for a fancy packaging machine PLC job

    I have long experience using PLCs for controlling power systems and building automation. Virtually no "MOTION" or CNC stuff. How complex is a conveyor/packacing extruder program. I understand axis and rpm and offset and the basics. Will a conveyor be reasonably easy to understand? I have seen...
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    Differential Trip (Device 87) 4160vac 6 Gen Parallel System

    Six Generator Detroit Diesel(1750Kva units) 4160vac ASCO system carrying building load varying around 6000Kva. One unit trips 86 lockout from 87 device. Flag on 87 fires so it is not control circuit issue. Will stay on bus at lighter loads but right around this level it trips. Swapped Relay...
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    Determining if motor is turning or locked in sealed unit

    I was wondering if I can determine if a sealed circulator pump is rotating or locked up by analyzing voltage and current as in power factor, etc. I have and can use a HIOKI analyzer, but do not know relation of phase angle to determining each state. Motor uses a capacitor start. Current is...
  5. EmergencyPowered

    Disturbance Analyzers

    Can anyone recommend a disturbance analyzer with full features and extensive triggering and capture options. If anyone remembers the wonderfully versatile and easy to use DRANETZ 626, you know what I want. Is the Fluke 434 a good choice.....can't seem to get enough info from online stuff. PC...
  6. EmergencyPowered

    Siemens RL CB with STATIC TRIP III

    During a maintenance event, we were running four Detroit diesel 480v 1750kva units in parallel with approximately a 2000kw resistive load. This has been done frequently and with absolutely no problems. This time one generator CB tripped, activated the bell alarm. The LCD display on the trip unit...

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