Electric vehicles (EVs) are changing the world around us in more ways than you can imagine. It is not just about installing simple charging ports; it is the infrastructure that supports them that needs to change as well.

For example, let us look at the transformers that step high-voltage power down to low voltage. Ordinarily, these are transformers that only municipalities would have to worry about. But when you are starting to build a fleet of EVs in your mine, warehouse or construction site, it is a challenge you need to solve.

Choosing transformers that reliably step down voltages as high as 10kV to an EV-safe 380V is a problem that LiuGong has already solved. Along with their trusted charging piles, which we covered last month, LiuGong provides transformers that keep your vehicles charged and your operations uninterrupted.

When the right transformers are paired with trusted charging piles, you can rest assured that your battery EVs will always work at peak efficiency.

What are transformers and why are they necessary?

Transformers change the voltage levels coming in from a power line. In the LiuGong power supply system, their primary function is to step down high-voltage power to low-voltage levels suitable for equipment charging.

Three key transformer requirements must always be considered when choosing.

Pure electric solutions are installed after grid power is brought to your site; this is where 10kV is stepped down to 380V DC for fast-charging applications or 220V for portable AC charging.

Battery-swap systems require transformers with sufficient remaining capacity, a stable voltage charge and auxiliary facilities to ensure a consistent power supply for the swap station. This ‘overhead’ ensures that when a battery is charged, there are no site-wide power fluctuations.

Tethered power solutions require significant cable runs between the transformer and the worksite, mine or warehouse. The transformer must supply sufficient current and voltage to keep a stable feed, while correct cable specifications prevent excessive voltage drop that could compromise equipment performance.

Capacity parameters that matter

When choosing which transformer to add to your infrastructure, consider the remaining capacity available after all your electrical loads are turned on. This ensures that when battery EVs are plugged into a LiuGong charging pile, there is sufficient capacity to charge the fleet without overloading the rest of the facility.

Use this example of a standard calculation to decide:

A transformer’s remaining capacity (SN) should be greater than the charging pile power (P), calculated as SN=P/0.9.

Whether you are working on a new construction site, building a grand warehouse or updating your mining operations, you need a complete electrification solution.

Finding a trusted partner that can support every stage of your electric machine infrastructure — from the point of entry to the final movement of your vehicles — is the safest way to ensure you have the right solution for your operation.

LiuGong has over 44 million hours of experience, working on-site at mines, ports, construction sites and more. If you are building the best electrified system, trust in the partner that has over 60 years of innovative experience.

For more information about LiuGong’s game-changing transformers, call 011-9790-970, send an email to lgsa@liugong.co.za or visit www.liugong.com/