SMC Smart Motor Controllers for Centrifugal Pump Control Application Guide

This document explains how pressure surges and water hammering in centrifugal pumping systems can be minimized by controlling pump motor acceleration and deceleration using electronic starting methods, particularly Smart Motor Controllers (SMCs). It compares starting methods such as direct-on-line and reduced voltage starting, and details the relationship between pump speed, flow, torque, and pressure using affinity laws.