1. What are the information's/outcomes that an Electrical gets from the P&ID?
2. What are the inputs that are to be provided by Electrical to the development of P&ID?
3. In Oil & gas companies, the pump/compressor selection/calculation done by Mechanical or process? If by mechanical, what is the involvement of process guys in that?
4. Who decides to have a VFD for a pump/compressor? by process or Electrical? If by process, what are the factors considered by them to have a VFD?
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Electrical Inputs From Process
#1
Posted 06 February 2024 - 05:21 AM
#2
Posted 06 February 2024 - 06:45 AM
Hi,
Check with your senior engineers within your organization.
Breizh
#3
Posted 06 February 2024 - 08:04 AM
Typically, the process engineer owns the P&ID during project development. The instrumentation engineer has a critical role within that scope. The electrical engineer has responsibility related to the powered equipment and the reliable availability of the power supply and typically does not have input into the P&ID except by offering advice or concerns related to infrastructure or cost.
The pump and compressor overall requirements are determined by the process engineer. Sometimes the process engineer may consider the pump curves critical and get into more equipment details. Process engineers are also more involved in multi-stage compressors since there is an iteration to pin down the interstage pressures expected. Mechanical engineers are responsible for rotating equipment detailing, seal system, driver specification, monitoring system and the many other details found on the equipment data sheets. The need for VFD can be initiated by process engineer for process reasons or by electrical engineer for electrical reasons. The project is a team effort with communication and consensus reached at the intersections of responsibility. Anyone on the team can offer suggestions and help to others. If one team member is especially experienced or knowledgeable in a particular area, then their input better helps direct the rest of the team toward the goal. Questions from team members can find mistakes or unconsidered risks and improve the likelihood of success. Every team is different and the above is what I have seen as typical.
Edited by Pilesar, 06 February 2024 - 08:05 AM.
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