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  1. raehanar

    Power Analyzer Erroneous Reading

    I have installed a Siemens PAC3200 power analyzer in a main power distribution panel which was observed to display an erroneous kWh reading. Upon further investigation, it was discovered that the power factor in one phase is abnormally low. Therefore, the VAR and W values are affected...
  2. raehanar

    Device that can generate a digital signal when sensing a 230V AC supply?

    What kind of device can I use to generate a digital signal (maximum 24V) when it is fed with a 230V AC supply? Device is to be mounted on a power distribution panel.
  3. raehanar

    Burnt Shunt Coil on ACB

    Thank you all. It was a found to be a fault in the control wiring.
  4. raehanar

    Burnt Shunt Coil on ACB

    The following complaint was received from a client of mine who has a newspaper printing press. When checking the main power panel during a power outage, the maintenance crew found one of the sub ACBs (800A, 55kA, 3-Pole) have been tripped and the shunt coil had been burnt. There is an Earth...

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