Industrial Electrician in Leeds |
A Guide to 3-Phase Power

Do you run a business in the industrial sector? If yes, it’s highly likely that you already have some familiarity with 3-phase power. You typically find this solution in industrial settings where large machinery needs a significant amount of power for operation. Whether you want to upgrade an existing Leeds property to 3-phase power, or you’ve moved into a new premises without this system in place, you can rely on our industrial electricians to cover all your needs.

At REE Contracting Ltd, we take pride in our reputation as specialists for all forms of electrical installation, maintenance and repair. As such, we’re the only company you will ever need for the lifecycle of all your electrical systems.

In this blog, we provide an introductory guide focusing on 3-phase power.

What is 3-Phase Power?

3-phase power is the method of alternating current for power generation, transmission and distribution. As a kind of polyphase system, this is the ideal solution if you require substantial amounts of electrical power. For example, electric grids around the world use 3-phase systems for the transfer of power. Further common applications include power transmission lines as well as heavy duty industrial machinery.

One of the best ways to conceptualise the 3-phase power at your Leeds premises is in comparison to the single-phase alternative.

Generally speaking, single-phase power has one live wire, whereas 3-phase power uses three live wires. Both options will then have a neutral wire and, in almost every case, an earth wire. When set up by our industrial electricians, your 3-phase power supply offers a more reliable, constant current.

In fact, the alternating current is one of the most distinctive features for these electrical installations. The process is self-explanatory: the current alternates on a cyclical basis, first flowing in one direction around a circuit, and then reversing to travel in the opposite way.

As this happens, the magnitude of the supplied voltage varies continuously between a negative and positive maximum amplitude. Because 3-phase power provides three alternating currents, the points in time at which each leg reaches its maximum voltage are separated by only one-third of the time in a full cycle.

In practical terms, this means the total amount of power supplied by the combined alternating currents remains constant: it never reaches zero. If you’re using a basic electrical appliance through single-phase power, these momentary drops don’t affect performance. However, this approach would have serious implications for the operation of much larger equipment, particularly that with a motor.

As an added benefit, 3-phase motors are highly efficient and draw significantly less current than an equivalent single-phase motor.

Whether you’re looking for a 3-phase power service, or any other electrical installation, maintenance or repair work, find out what makes us the trusted industrial electrician in and around Leeds.

Call 07581 739569 to speak with one of our industrial electricians about your 3-phase power requirements in Leeds or any other North Yorkshire, West Yorkshire or Lancashire location.