What are the starting conditions for the lubricating oil pump in the lubricating oil station control of a compressor?
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For example, in a motor-driven centrifuge, what other signals are required for the lubrication pump at an oil station to start operating?
There is a temperature requirement – it must not be below a certain level. Typically, in lubricant stations, a backup pump is activated when the oil pressure drops
By the way, what signal does the barring motor receive to allow it to start, and what signal causes it to stop automatically as a result of interlock?
Both the temperature of the lubricating oil and its pressure are essential
For initial startup, if a dry gas seal is used, the isolation gas must be activated; thereafter, the oil temperature must reach the required level for startup, after which power can be supplied to start the system. If what is being asked is about interlock activation, then it means that when the oil pressure drops to the interlock threshold while the system is in automatic mode, activation takes place
What conditions can initiate it depends on the interlock you design. Different manufacturers design them in slightly different ways. It can’t be generalized. The conditions permitting startup of the barring gear are the same.
For those with seals, the seal must be installed first!
Check the manufacturer’s P&ID or operation manual