Hermetically Sealed Oil-Immersed Distribution Transformer

This Hermetically Sealed Distribution Transformer is an advanced oil-immersed, non-breathing transformer engineered for long service life and minimal maintenance. It features a completely sealed tank system, eliminating the need for an external conservator. The design includes either corrugated tank walls or a flexible diaphragm, accommodating internal pressure variations due to temperature changes without atmospheric contact, thereby reducing moisture ingress and prolonging insulation life.

Available in multiple mounting configurations—including pole-mounted, pad-mounted, dead-front unit substation, and package substation types—this transformer offers installation flexibility across various distribution networks. With input voltage options ranging from 3.3 kV to 34.5 kV, and standard output of 400V/230V (customizable to match load requirements), it serves both rural and urban power distribution applications.

Constructed with Class A, B, or F insulation, depending on thermal and environmental needs, it supports stable performance under load while ensuring long-term reliability.

Specifications:

– Non-Breathing Construction: Prevents moisture ingress for longer insulation life
– Sealed Tank System: No conservator required; pressure balanced internally
– Flexible Mounting Options: Suitable for pole, pad, or substation installations
– Voltage Flexibility: Wide input voltage range up to 34.5 kV
– Output Customization: Supports varied LV output per system demand
– Thermal Insulation: Multiple insulation classes for varying environments
– Transformer Type: Hermetically Sealed, Oil-Immersed, Non-Breathing
– Tank Design: Sealed with Flexible Diaphragm / Corrugated Wall
– Mounting Options:
 • Pole Mounted Transformer
 • Pad Mounted Transformer
 • Dead Front Unit Substation Transformer
 • Package Substation Configuration
– Output Voltage: Typically 400V / 230V (Customizable)
– Insulation Class: A / B / F Class (based on specification)
For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com