What's SYSTEM VOLTAGE DIP?

[gilus02]

What's SYSTEM VOLTAGE DIP?
This item is mentioned in the API-610 data sheet. Does anyone anybody know anything about that?

 

[LittleInch]

well it's basically what it says - what is the voltage dip that the system is subjected to. Standalone "island" power generation systems and some remote grid supplies, suffer from voltage dips when large loads are applied subddenly, e.g. a large pump starting. While most are within the +/- 10% limit, there may be extreme examples where the client doesn't want the pump to stop on a larger voltage dip.

Which line on the data sheet & API 610 edition are you using? or has someone added a line to yours?

My motto: Learn something new every day

Also: There's usually a good reason why everyone does it that way

 

[gilus02]

Thank you LittleInch for your comment.

As mechanical engineer, I don't have an extended knowledge about electricity so if I figured it out correctly, this means that the electrical motor which used for a centrifugal pump should have capability to work with a voltage lower than the design and normal voltage.
It is noteworthy that it is mentioned in the API-610 10th ed. and I think usually voltage dip is considered 80% because I have seen it in API-610 data sheet.