The Energy Saving Device for Elevators

1.We adopt PWM technology to output correct se, and restrain higher harmonic effectively.2.We adopt DSP CPU, which has high speed, precision, stability and anti-jammingability.3.We adopt self-diagnostic techniques to ensure the accurate of output voltage, and in case of current post back, to make the frequency convertor out of influence.4.Voltage distortion: <5%, fit the harmonic requirements of IEC61000-3-2 and GB/T14549.5.It can be used in network connection with AC150~460Vdirectly through a reactor or filter. Electricity saving will be obvious in frequent braking situation.6.Energy conversion rate can reach above 97%.7.Empty load up can save 35% and Full load down can save 45%.8.Indicate the of pitch point according real time.9.Twin channel protect installed internally.10.Building block design, support power extending.11.Support data teletransmission.