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Hi,
At one of our offshore oil and gas platform, there were 3 110VAC-24VDC converters for DCS controllers and IOs. However, all there are supplying power to independent loads without any redundancy(Negative terminals are not connected to Ground). As these PS becomes old we are planning to replace with redundant power supplies of different make and model.
My questions are:
1. Whether we can do parallel connection of different Power Supplies of same voltage ratings or not? if not why?
2. Will paralleling two different make Power Supplies damage any of power supplies due to different voltage w.r.t. ground?
3. Will there be any voltage fluctuation to DCS loads during connection of redundant PS online without any plant shutdown?
At one of our offshore oil and gas platform, there were 3 110VAC-24VDC converters for DCS controllers and IOs. However, all there are supplying power to independent loads without any redundancy(Negative terminals are not connected to Ground). As these PS becomes old we are planning to replace with redundant power supplies of different make and model.
My questions are:
1. Whether we can do parallel connection of different Power Supplies of same voltage ratings or not? if not why?
2. Will paralleling two different make Power Supplies damage any of power supplies due to different voltage w.r.t. ground?
3. Will there be any voltage fluctuation to DCS loads during connection of redundant PS online without any plant shutdown?
