Difference between inverter G type and P type Most of the fan and pump loads are P type, for example, a 5.5 P type machine is equivalent to a 4KW G type machine.

G is heavy load, P is light load. General fans and pumps will choose light load (except Roots fan, deep well pumps, etc.). Constant torque load will choose a heavy load or even another gear (conveyor belts, mixers, extruders and other friction loads, as well as cranes, hoists and other potential energy loads belong to the constant torque load); constant power loads will generally choose a heavy load (machine tool spindles and mills, paper machines, plastic film production line in the winder, uncoiler, etc.). According to the motor with the load, such as the conveyor belt above the full of things, at this time the load is very heavy, but also require the motor output torque constant, the current is likely to become larger, so choose the frequency converter heavy load or even a larger gear. And paper machine ah, plastic film production line, so that the load on top will not have too much change, so choose heavy load is good.