An Outdoor Voltage Transformer (VT), also known as a Potential Transformer (PT), is an instrument transformer used in outdoor high-voltage installations to reduce high system voltage to a safe, standardized level for metering, protection, and monitoring.
It is commonly used on 11kV, 33kV, 66kV and higher-voltage distribution/substation systems.
For a professional product description:
“Supply of High-Quality Outdoor Voltage Transformers (VT/PT) for Metering and Protection Applications — Suitable for 11kV/33kV Power Distribution and Substation Systems.”