Elevators need the reliability of three-phase power that only phase converters can provide. These systems serve as an auxiliary power supply that provides the elevator with continuous, balanced power and adequate voltage to initiate the motor. Any elevator that could benefit from increased speed and efficiency needs a phase converter to power it.

How to Choose a Phase Converter

From the door interlock to emergency phones, elevators are complex systems with many moving parts. A phase converter provides the reliable power needed to ensure those moving parts work properly for years to come. That is why choosing the right phase converter is an important step in the process.

Consider these three factors before making a phase converter purchase:

1. Start With the Basics

The first thing to know about elevator operation is that they require both single-phase and three-phase power. Elevators naturally operate on alternating current (AC) from the single-phase power supply. However, they need phase converters to convert the alternating current (AC) supplied by the power grid into direct current (DC) to start the motor of the elevator. Direct current is not only easier to control and transmit but also provides a more stable, balanced power supply.

2. General Project Considerations

When shopping for a phase converter, consider the:

  • Load requirements
  • Installation requirements
  • Elevator components
  • Elevator size and weight capacity
  • Control panel type
  • Phase converter size and weight

3. Choosing a Phase Converter

You have two types of phase converters to choose from for elevator operation: rotary phase converters and digital phase converters. Here is a breakdown of each converter type along with its characteristics and advantages.

Rotary Phase Converters

Rotary phase converters work well for elevator operation because they are designed to power large machines that carry heavy loads. Rotary phase converters feature an analog control system and are the more affordable option.

The two main components of a rotary phase converter are the rotor and the stator:

  • Rotor: The rotor is an electromechanical device that contains coils and converts electrical power into mechanical power.
  • Stator: The stator is a stationary electromechanical device that converts mechanical power into electrical power. This device usually consists of coils that are wound around an iron core.

Digital Phase Converters

Unlike rotary phase converters, digital phase converters feature a digital control system that allows for simple on/off operation. Since digital phase converters are the more expensive type of phase converter, they are less popular among consumers than rotary phase converters.

Digital phase converters include an inverter, a rectifier, a filter, and a transformer:

  • Inverter: The inverter, which is usually located on or near the compressor, converts the power supply’s digital signal to a signal that the compressor’s motor can use.
  • Rectifier: The rectifier is the component that converts AC power to DC power and vice versa.
  • Filter: The filter removes noise from the power supply, resulting in a quieter operation.
  • Transformer: The transformer can be used for voltage conversion and power factor correction.

5 Benefits of Using a Phase Converter to Power an Elevator

While elevators don’t require a phase converter to operate, using one does have its advantages. Check out the top five benefits of investing in a phase converter below:

  1. Smooth, reliable operation: Phase converters provide a strong power supply that allows for continuous operation.
  2. Improved elevator safety: Phase converters provide a steady stream of power that removes any worry about a system malfunction or breakdown.
  3. Independent power supply: Since phase converters can provide both single-phase and three-phase power, they eliminate the need for an additional or backup power supply.
  4. Increased system efficiency: The continuous supply of reliable power that phase converters provide puts less wear and tear on elevators and enhances their operational efficiency.
  5. Cost savings: Elevators powered by a phase converter only need one motor to operate. This means one less motor to purchase, install, repair, and replace down the road.

Our Phase Converter Collection

Here are three of our collection’s top sellers:

NL Series Phase Converters

Constructed with heavy-gauge powder steel, the NL Series features a fully enclosed and fan-cooled cast iron generator. This phase converter is designed for both indoor and outdoor use in woodworking and metalworking. Its hinged door allows for easy installation and access while its balanced voltage supplies a steady stream of power for every use.

PL Series Phase Converters

The PL Series has the same construction as the NL Series but includes an additional magnetic starter and an automatic start/stop button for safe operation. We recommend using this phase converter for jobs involving hazardous equipment, such as saws and drill presses.

Phase Converters Package With Transformer

The phase converter and transformer packages enable our team to better customize your phase converter to your specific power needs. Once the phase converter increases the voltage phase from single-phase to three-phase, the transformer further increases the voltage of the three-phase power. In other words, the transformer provides even stronger, more reliable power for all your heavy-duty jobs.

Shop Our Selection Of Phase Converters

We have the premium products you need to power any job. Our affordable rotary phase converters are designed for longevity and durability. Since our team handles everything from design to distribution, we can guarantee you’re getting the highest quality phase converter on the market. Shop our collection to find the right phase converter for your power needs. Give our team a call by phone at (866) 418-9060 to receive assistance choosing a phase converter for your commercial environment.