Control Transformers
Control transformers are a type of transformer designed specifically to provide a stable voltage for the control circuits of electrical equipment, such as motor starters, contactors, relays, and timers.
Applications:
- Motor control centers (MCCs)
- Machine tools
- HVAC systems
- Industrial automation panels
- Elevators and cranes
Key Features of Control Transformers:
- Step-down voltage: Typically reduce high primary voltages (like 440V or 415V) to lower secondary voltages (like 110V, 24V, or 12V) used in control circuits.
- Short time rating: Designed to handle momentary high inrush currents (like when a contactor coil is energized).
- Isolation: Electrically isolates the control circuit from the power circuit to enhance safety.
- Durability: Built to withstand industrial environments (heat, vibration, dust, etc.).