At Phoenix Phase Converters, we have solutions for every type of power problem. We take great pride in providing practical and efficient solutions to our customers. Today, we are going to talk about one such issue. 

We will find the power solution in a woodshop that is located at a place without three-phase power. So, let’s understand the challenge and then move on to the steps that can help us find the solution. 

The Challenge of Powering a Woodshop Without Three-Phase Power

So, one of our customers called us and asked for help regarding his woodshop. He is relocating his woodshop to a limited-power garage. The setup of this shop includes the following: 

  • A 15 HP CNC machine

  • A 15 HP dust collector

  • A 10 HP vacuum pump

The garage our customer has is powered by only a 100-amp service and a 37.5 KVA transformer. This is not sufficient to handle the load of the equipment he uses in his woodshop. So, our experts offered the following solution to the customer.

Step 1: Assessing Power Requirements

To find the right solution, first, we calculate the power requirements:

  • The CNC machines need double horsepower for balanced output, which should be equal to a 30 HP phase converter.

  • The dust collectors need three times the horsepower as they have higher power supply currents. They might require a 45 HP phase converter.

  • The vacuum pump can load an additional weight but it can be managed by larger equipment.

We recommend using a dual-zone phase converter that shares the load between two 40 HP converters. This will reduce the current supply and won’t strain the electrical system.

Step 2: Exploring Service and Transformer Options

With only 100 amps of service, one of the customers needed an upgrade to support the woodshop’s equipment. We explained:

  • A minimum of 200 amps of power supply service would be required to make the all three equipment run at the same time and  function efficiently.

  • The current 37.5 KVA transformer provided 150 amps of power supply, but upgrading it to a 75 KVA transformer would be perfect for the garage and house.

If upgrading the transformer wasn’t possible, we would have suggested installing a second transformer for the garage.

Step 3: Providing Flexible Solutions

We have given a step-by-step method so that you can manage the cost:

  • You should always begin with the largest load which is the vacuum pump at 10 HP which will require a 30 HP Rotary Phase Converter, and 40 HP phase converter to provide power to the CNC machine..

  • Add the other, 40 HP phase converter later, if needed to run the dust collector at the same time.

  • Connect with an effective and trustworthy power company to find the cost and workability of upgrading the transformer to 75 KVA.

This step-by-step approach allowed our customers to scale up their setup eventually, avoiding unnecessary expenses.

Step 4: Addressing Common Concerns

Our customers raised concerns regarding the cost and complexity of running a generator as an alternative. We explained a few key points:

  • Generally, generators are expensive to function as they require more fuel and have high maintenance costs.

  • Phase converters are a cost-effective, reliable, and durable solution for long-term operations.

We also provided practical insights about managing unstable currents, boosting equipment startups, and ensuring adequate capacity for the household’s power supply needs.

Key Takeaways for Electrical Contractors

We have highlighted important considerations when designing an effective power solution:

  • Estimate Power Requirements: Have an understanding of the load type, power supply currents, and usage of different-sized phase converters when used simultaneously.

  • Target for Growth: Invest in dual-zone phase converters to allow for future expansion without over employing the resources.

  • Come Together with Utilities: Upgrading transformers and service lines often results in minimal costs, especially in rural areas.

  • Avoid Using Generators: Phase converters deliver a more economical and reliable solution than the generators, for powering three-phase applications.

Why Choose Phoenix Phase Converters?

Phoenix Phase Converters specializes in helping contractors and business owners to overcome power challenges. From calculating equipment loads to designing scalable solutions, we’re always there to guide and help you. 

Also, do you need assistance with power needs? Contact us today, and we will find the right solution for you.