Isolation transformer is used primarily for what?

Isolation transformer is used primarily for what?

• A. Voltage Regulation
• B. Safety by Providing Electrical Isolation
• C. Power Factor Correction
• D. Voltage Doubling

Answer: (B)

Isolating transformers provide galvanic isolation between the source and the load by coupling the windings magnetically. Because there’s no direct electrical path from primary to secondary, fault currents and common‑mode voltages can’t easily pass through, which greatly reduces shock risk and protects both personnel and sensitive equipment. This safety isolation is the primary reason such transformers are used, especially in lab setups, medical gear, and any situation where you want to keep the load electrically separate from the mains. They don’t inherently regulate voltage, improve power factor, or double the voltage; those outcomes come from other devices or winding configurations.

Isolating transformers provide galvanic isolation between the source and the load by coupling the windings magnetically. Because there’s no direct electrical path from primary to secondary, fault currents and common‑mode voltages can’t easily pass through, which greatly reduces shock risk and protects both personnel and sensitive equipment. This safety isolation is the primary reason such transformers are used, especially in lab setups, medical gear, and any situation where you want to keep the load electrically separate from the mains. They don’t inherently regulate voltage, improve power factor, or double the voltage; those outcomes come from other devices or winding configurations.