Three-phase power is preferred for commercial elevators. Single-phase operated elevators are often slow and inefficient. Commercial and residential use phase converters as a reliable and economical substitute to the expensive installation of utility three-phase power. NAPCco offers money-saving power conversion solutions for elevators.
The Basics First
Elevators have single and three phase power requirements with multiple moving parts that requite powered distribution through motor controls and multiple circuits. The elevator loads range from:
- Hydraulic Lifting Pump Motors
It is helpful is to identify the elevator control center location, components and single phase or three phase voltage power requirements. Some elevators have strict voltage balancing modulation systems, requiring as tight as +/- 3% voltage balance between phases.
General project considerations:
- Available single phase amperage.
- Voltage phase balance tolerance.
- Significant inrush current to start the motor load
- Proper selection of a phase converter size and capabilities
- Continuous power to variable motor loads such as doors and vents
Choosing a Phase Converter
Choosing a phase converter type is easy with accurate load requirement information and support. NAPCco provides specialized insight on a couple popular phase converter options to help you make the best decision for the application. Here is a general phase conversion summary to consider before reaching out to the staff that supports conversion projects full time.
- Digital Phase Converters: This choice is a good option for operating an elevator. Phase perfect digital phase converters use a microprocessor to control three-phase power with no moving parts. The digital phase converter produces a digitized version of the analog sine wave. Although it is not a true sine wave it models the form necessary to supply the load with balanced power and enough voltage for motor starting requirements. Digital phase converters offer an economical, continuous power solution.
- Analog Rotary Phase Converters with Digital Voltage Balance: Rotary phase converters are the most economic conversion solution, now available with automation and digitally controlled phase balancing. The analog rotary phase converter produces a true analog sine wave identical to the power station down the street. A quality rotary phase converter is 97%-98% efficient and with automation maximizes efficiency, while keeping the user interface simple.
Choosing a phase converter for an elevator’s three-phase power needs is economical, reliable, and efficient. NAPCco offers a wide-range of phase converter options and electrical supply products for any power conversion solution. Contact us today to learn how we can best assist your three-phase power needs! 1-877-545-2926