NGEF Transformer selector switch assembly

NGEF Selector Switch Assembly – Product Description

The NGEF Selector Switch Assembly is an essential part of the On-Load Tap Changer (OLTC) system used in power transformers. It is responsible for selecting different tap positions on the transformer winding while the transformer remains in operation. This allows smooth voltage regulation without interrupting the power supply. The assembly works together with the diverter switch to ensure safe and reliable switching under load conditions.

It is manufactured using high-quality conductive and insulating materials to ensure durability and stable performance in oil-filled and high-temperature environments. The assembly consists of a precision-aligned shaft, contact segments, and switching components that provide accurate tap positioning. By maintaining proper voltage control and reducing electrical stress, the NGEF Selector Switch Assembly helps improve transformer efficiency and extend service life.