Product Description

Transformer Windings Drying Oven is heated chambers used for drying of transformer windings, electric motor rotors. Recirculated air blower is provided to constantly circulate hot air in interior chamber, with high rate vertical or horizontal airflow, which offer excellent temperature uniformity.

Drying of transformer windings is important at all stages of transformer life cycle. This is due to the fact that moisture reduces the dielectric strength of the insulation and accelerates its aging. Moisture can enter the windings even during transformer assembly, making it necessary to dry the wingdings.

First, the insulation is heated, releasing water from the internal layers to the outside as vapor. The vapor is then carried from the surface of the insulation to the outside. the The motion of water inside the insulation is due to the different concentrations of moisture and temperature at different points of the windings. Moisture moves from high concentration spots and hotter points to the portions with lower temperature.

Water migration from the internal layers of the windings is facilitated by thorough heating of the transformer core.

► APPLICATIONS

• Transformer windings drying
• Electric motor rotors drying

► FEATURES

• Durable tubular heating elements
• All welded construction
• Durable recirculating blower
• Adjustable exhaust outlet damper
• Durable trolley
• Insulated with alumina silicate fibre insulation
• 304 stainless steel interior and painted exterior
• Heavy duty doors
• Silicone door gasket
• Viewing window (optional)

► CONTROL

• Digital temperature controller
• SSR or SCR power controllers
• Heat ON/OFF switch
• High volume recirculation blower
• Timer with range up to 0 to 999 hours/minutes/seconds
• Audible and visible alarm indicators
• Control Accuracy: ±1°C
• Uniformity: ±5°C
• Available input power supply to your specifications
• Temperature recorder (optional)
• PLC with HMI(touch panel) (optional)
• Programmable temperature controllers (optional)

► SAFETY PROTECTION

• Separate excess temperature interlock to turn off heat on malfunction of main temperature controller
• Electrical interlock shuts off heat if recirculating blower is broken

► SPECIFICATIONS

Notes: For more models, please contact us. The unit could be entirely bespoke, we can design and tailor ovens to your specification.