Transformer Installation

18th November 2016

You need to power a new office. Or you want to install a new transformer to replace your earlier one. Think Etal Transformers and you will not have to worry about installing transformers ever again. Here are some transformer installation essentials you must be aware about.

Why You Need Transformers?

The AC (Alternating Current) system requires voltage to be raised or lowered throughout the power supply system to make it safe and efficient. Transformers are needed just for this purpose.

How Transformers Work?

Any transformer consists of two sets of coils or windings. Each set of winding is called an inductor. The AC voltage is applied to one of the windings, called the primary winding. The secondary winding is the other set of coils that is located in close vicinity to the primary winding but is electrically isolated from it.

The AC flowing through the primary winding establishes a time-varying magnetic flux and some of this links to the secondary winding. This process induces a voltage across the second winding.

Transformer Types

There are three main types of transformers depending upon their construction and usage. They are three-phase transformers, auto transformers and special transformers.

Which Transformer Is Best For You?

For a new office that needs lighting, a receptacle for the coffeepot and the computer terminal, you will need a 3kVa transformer. This means a 277V single-phase to 120 V, 2 wire transformer is required.

Connecting the Basics

Before you start any installation, refer to the supplier’s instructions. A better idea will be to call the professional installation experts. Since most connections of the transformers, including Etal transformers are application-specific, it is important to understand the basics before energizing any connection.

Inside the junction box, there are two connections “H” and “X”. The “H” connections denote the higher-voltage windings of the transformer and the “X” connections are the lower-voltage windings.

The model also has two 21/2% FCBN taps to help maintain the 120V. You can add insulating materials such as caps or splicing tape to the pigtail leads that splice into wiring from the raceways with the help of ring-terminal crimp lugs and machine screws.

It is recommended that you install a 10A dual-element fuse in a spare single-pole switch in 480Y/277V lighting panel on the opposite wall of the premises. In order to minimize voltage drop, it is also recommended that you install the transformer nearest the load end of the circuit.

Additional transformers

Sometimes for a packaging assembly, additional transformers are required. Connections to this type of transformer are usually basic-three wires that are connected into the high side (H1, H2, H3) and three wires to the low side (X1, X2 and X3)

Equipment Grounding

Another important factor you must consider is provision of equipment grounding. Talk to your Etal transformers supplier about the right location of setting up the equipment grounding.

Call the Professionals

Installing a transformer is no child’s play. It requires a high level of expertise and experience. More than that, the installation also needs some study and research into the requirements.

Before you install a transformer for your office or warehouse, you need to study the exact requirement, usage and of course power capacity. For doing this kind of study, it is always better to call professional transformer suppliers and technicians.

After a feasibility and requirement analysis, the expert technicians can guide you well about the entire installation process. If high-end technical jargon is not really understood by you, you should always get all your doubts clarified from the installation services team.

Your transformer supplier will also help you with after sales services for the transformer as and when required.