Water Treatment Plants

The size of the plant will also matter.

Considering it is plant for a whole city, we will have then a big substation with LV and MV switchgear, distribution and power transformers, lighting and auxiliary transformers, AC & DC UPS systems, capacitor banks, emergency diesel generator, a connection to the grid (maybe) and in such a case we may have even an outdoor substation(switchyard). An considering yet again the fact that nowadays cities are pretty big we could even have a power plant.

Did I miss something important?

Hi Current Maarey,

I think you have covered everything. What additionally required are Motors , motor control panels and equipments for water testing lab and small items like sensors, limit switches and cabling. The water treatment plant and sewage treatment plants have different requirement.

Thanks V.I. Abraham. You have rightly listed the VI (very Important) items I had missed.

Hi Friend

Thanks for the complement ( V.I.), the credit goes to my Dad " Itty"

"V' My family house name and "I" represents my Dad's name. So if I am Important it is because of my Dad .

I agree on what has been posted so far. But both water and wwtps have a lot of unique systems in them. It is hard to define electrical systems including control for each one without knowing and getting into specifics. I know, I use to design these facilities for many years. There was never two alike of any kind. Always kept me busy. There are many standards on this, but not much really written down on electrical texts. I might suggest you look at the Instrument Society Association's various publications on it. They have more specifics than IEEE does on controls. Power is mostly motors. There is in the USA also a specific code section of the NFPA for wastewater (NFPA 820). Good luck.

There is also a SCADA system to run the plant.

Also, on the process side you will have the Solids Removal Equipment, Aerators, Clarifiers, UV lights, Level Transmitters and likely a host of PLC's and / or RTU's. Very Large stations may also have DCS (Distributed Control).

The AWWA is also a good resource... www.awwa.org