Electric saver can improve the powerfactor, reducing input current, lighting the transformer's load, and increasing efficiency and transformer's volume.
提高功率因数，降低输入电流，减轻了变压器的负荷并提高了效率，增大了变压器的容量。
2
Application of power electron device results in decreasing of natural powerfactor of electricpower system.
电力电子装置的应用，使电力系统的自然功率因数下降。
3
Operating principle of powerfactor compensating device for 8k electric locomotive is briefly described as well as its parameter selection, switching on and off control.