Here is a great showcase of the effects of applying active harmonic filters on a cable car installation made by Power More in Vietnam. Ba Na Hills Mountain Resort are holders of three Guiness Records – Longest single rope cable car system, Longest distance between stations and Heaviest cable roll. For Ba Na Hills, power quality is a question of safety and service quality. With total harmonic distortion 5 times higher than the national regulated level, Ba Na Hills were facing several problems.

• Station to station communcation was interrupted
• Power factor penalties
• Damaged PFC capacitor units
• Inerference with PFC controller
• Reduced motor effeciency in generator mode to 50%

Applying ADF Power Tuning active filters from Comsys to battle both power factor correction and harmonic filtering resulted in:

• Eliminated risk of PFC failures
• Eliminated power factor penalties
• Increased motor efficiency to 100%
• Improved cable speed