【正文】
中文 1150 字 ECONOPILOT”ENERGYSAVING SYSTEM FOR WATER PUMPS We have developed the “EconoPilot” energysaving system for water pumps, which reduces the power consumption of motors for water supply. In the energysaving control field, the conventional method used is that of constant pressure control of the water supply with inverters. However, as EconoPilot employs a method of variable water pressure control corresponding to flow volume, the system can raise the energysaving ratio up to 90 percent. This paper describes the principles of the system and its basic functions, along with a case study of some practical applications. INTRODUCTION With the background of fulfilling public mitments for the prevention of global warning, many countries have consolidated related laws and regulations aiming to reduce energy consumption. Energy conservation has bee one of the important issues for panies and organizations accredited with the ISO 14000 series standards certification because they are