Hi All,
I am going to replace an old constant speed pump with a bigger capacity VFD driven pump. This is a result of an increasing demand of potable water in the locality.
old pump has these numbers:
Size 10 x 12 x 13.34"
Motor HP 250
Capacity 4,150...
Pump drive end bearing showed momentary vibration increasing abnormal sound after completion of test and commissioning of the new VFD for the 1000 Hp motor driving this 13,900 iGPM pump.
I'm new to this group, your opinions would help me a lot. My question is : Do frequent starts and stops...