MachineU > China Products > Electrical Equipment & Supplies > Industrial Controls > Transformers
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Specifications
Description

Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
1. Product Overview

The HENTG POWER 400kVA 10kV/0.4kV three-phase oil-immersed transformer (ONAN) is arranged for stable medium- to low-voltage operation. It remains steady during long-term outdoor use in environments with heat, airborne dust, and varying load conditions, offering consistent voltage output, reduced loss, and a sealed tank designed for durability.

2. Key Selling Points

  • High-Efficiency Low-Loss Core

    Equipped with a cold-rolled silicon steel core, helping reduce no-load loss and supporting energy-efficient performance in long-term operation.

    ● Reinforced Sealing Structure for Oil Containment

    Multi-layer gasket system, strengthened tank joints, and fully welded construction minimize the risk of oil leakage in harsh outdoor environments.

    ● Stable Temperature & Load Performance

    ONAN cooling supports continuous operation under high temperature, ensuring stable output and reduced thermal stress on internal components.

    ● Outdoor-Grade Protection for Harsh Climates

    The exterior tank features anti-corrosion coating, UV resistance, and dust-resistant structural design suitable for sand-exposed locations.

    ● Reliable Electrical Design

    Copper windings, outdoor-grade bushings, and IEC-aligned insulation strength ensure long-term operational reliability.

3. Technical Specifications
Parameter Specification
Rated Capacity 400 kVA
Phase Three Phase
Frequency 50 Hz / 60 Hz
Rated Voltage (HV) 10 kV
Rated Voltage (LV) 0.4 kV
Cooling Method ONAN
Insulation Level IEC Level
Vector Group Dyn11 (optional)
Tap Changer Off-circuit
Tap Range ±2*2.5%
Winding Material Copper
Core Material Cold-rolled Silicon Steel
Insulating Oil Mineral Oil
Tank Type Sealed Type
Protection Class Outdoor
Mounting Style Ground Placement
Standard IEC
4. Dust-Condition Challenge & Oil-Leakage Control Measures
Environmental Challenges in Dust-Intensive Locations

Regions with desert-style climates may face:

  • Dust accumulation around external areas

  • Faster gasket aging due to heat and sand

  • Higher chance of oil seepage at joint areas

  • Surface wear on tank walls

Measures Used to Address These Conditions

  • Multi-layer sealing layout enhancing joint tightness

  • Reinforced plates with full welding helping limit deformation

  • Dust-control breather reducing dust and moisture entry

  • Outdoor protective coating resisting UV and sand impact

  • Heat-resistant gasket materials extending sealing performance

These adaptations support long-term stability and help reduce oil-related risks in outdoor environments.

5. Application Scenarios

Suitable for a range of outdoor power-distribution surroundings, including:

  • Community and residential supply areas

  • Light-load operational zones

  • Rural and suburban distribution networks

  • Building-level supply arrangements

  • General medium- to low-voltage outdoor setups

6. FAQs
Q1: Can this transformer operate in areas with high dust levels?
A: Yes. It incorporates sealing reinforcement, outdoor protective finishing, and dust-control features.
Q2: Does the unit align with recognized technical criteria?
A: Yes. Its configuration follows IEC insulation and performance guidelines.
Q3: Can the tap range be adjusted for different voltage conditions?
A: Yes. Multiple tap positions are arranged to match varied voltage settings.
Q4: What kind of bushings are adapted?
A: Both porcelain and polymer outdoor-rated bushings are available options.
Q5: Does it require frequent routine checks?
A: No. The sealed-tank layout and reinforced gasket arrangement support extended intervals.
Q6: What cooling approach does it rely on?
A: It operates with ONAN (oil natural, air natural) cooling.
Contact us for more details or a customized technical solution.


Send your message to this supplier
Send Now

Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution

Ask Latest Price
Product Detail
Contact Supplier
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution
Durable 400KVA 10/0.4KV Oil-Immersed Transformer with Low-Loss Core for Power Distribution

Hunan Hentg Power Electric Technology Co., Ltd.

Verified Supplier
1 Years
hunan, changsha
Since 2011
Business Type :
Manufacturer
Main Products :
Oil Immersed Transformer, Dry Type Transformer, Compact Substation Transformer
Total Annual :
300-500MVA
Employee Number :
200~250
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Power Distribution Transformer
MachineU China Products Electrical Equipment & Supplies Industrial Controls Transformers
Contact Supplier
Submit Requirement