The SUNTEK Variac Transformer, also known as an autotransformer or variable autotransformer, is an electrical device used to provide variable voltage output. The two windings in this device are directly connected to each other. As a result, between them there are two types of communication, one of which is electromagnetic, and the other electric. The coil has several pins with different voltage output values. The difference from conventional transformer is increased efficiency, due to partial change in power. This adjustment results in a variable output voltage, which can be either higher or lower than the input voltage, depending on the position of the contact. Variac transformers are commonly used in applications where a variable voltage is required, such as laboratory experiments, industrial equipment testing, and voltage regulation in power supplies. They offer a convenient way to control and adjust the voltage supplied to a load, enabling precise control over electrical parameters.
It's worth noting that while variac transformers provide variable voltage output, they do not provide isolation between the input and output. Therefore, appropriate safety measures should be taken, such as using appropriate grounding and insulation techniques, when working with variac transformers to ensure electrical safety. Automatically transformers (variac transformers) are used to smoothly adjust the AC voltage in various works related to electrical engineering. They are most often used to change the voltage in household appliances, construction.