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Voltage transformer (VT)

What Is Voltage transformer (VT)?
Voltage transformer (VT) is an electrical parameter used to describe power flow and capacity in EV charging systems.

Why It Matters
It affects system safety, reliability, compliance, cost, and user experience when designing or operating EV charging infrastructure.

How It Works
It is implemented through a combination of electrical design, charger configuration, and operational controls depending on the site and equipment.

Where It Is Used
• Public charging sites
• Commercial parking
• Workplace or fleet depots

Key Advantages
• Improves operational reliability
• Supports scalable deployments
• Reduces risk and improves consistency

Related Terms
Type 2 connector
Smart charging
DC charging
OCPP

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