Which type of transformer is specifically designed to reduce voltage spikes?

Isolation transformers are specifically designed to reduce voltage spikes and protect equipment from transient voltages. These transformers provide electrical isolation between the power source and the load, which helps to prevent voltage surges and spikes from propagating. By isolating the connected equipment from the power source, these transformers can absorb and mitigate transient voltages, thus safeguarding sensitive electronic components and ensuring stable operation.

In addition to their primary function, isolation transformers can also help reduce electrical noise, improving the overall performance and reliability of the connected devices. This is particularly important in environments where sensitive electronics are used, such as in laboratories, hospitals, and telecommunications.

The other transformer types listed serve different purposes. Step-up transformers are used to increase voltage levels for transmission over long distances, while control transformers are designed for specific control circuit applications, providing lower voltages for relay, solenoid, or other control device operations. Distribution transformers are primarily used to step down voltages from higher transmission levels for residential or commercial use but do not specifically target the reduction of voltage spikes in the same manner as isolation transformers do.