Answer:
There are three primary types of voltage transformers (VT):
Electromagnetic
Capacitor
Optical.
Explanation:
A capacitor voltage transformer (CVT), also known as capacitor-coupled voltage transformer (CCVT), is a transformer used in power systems to step down extra high voltage signals and provide a low voltage signal, for metering or operating a protective relay.
Optical Current Transformers and Optical Voltage Transformers, based on the Faraday and Pockels effect, are a new family of instrument transformers and an alternative to the conventional electric-magnetic transformers for protection and metering purposes.
An electromagnetic voltage transformer is a voltage transformer that converts a primary voltage into a secondary voltage by electromagnetic induction. This transformer does not add other electrical components such as capacitors that change the primary voltage.
