Robust Construction 20kV 400V 400kVA 500kVA Electrical Distribution Unit Easy Install for Data Centers OEM for sale

Categories	Power Distribution Transformer

Product Details
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Robust Construction 20kV 400V 400kVA 500kVA Electrical Distribution Unit Easy Install for Data Centers OEM

Product Overview

The 400kVA 500kVA 20kV to 400V Oil Immersed Distribution Transformer is a high-performance Electrical Distribution Unit specifically engineered for high-density power environments like Data Centers and Industrial Manufacturing. This Robust Construction unit is optimized for OEM services, providing a stable 0.4kV output from a 20kV high-voltage grid. Designed with an emphasis on Easy Installation and long-term reliability, it ensures uninterruptible power supply for sensitive IT infrastructure and heavy-duty machinery.

400kVA 500kVA Oil Immersed Distribution Transformer for data centers

Core Selling Points

Engineered for Data Centers: Features high harmonic endurance and ultra-stable voltage regulation, ensuring clean power for servers and precision cooling systems.
Rapid OEM & ODM Customization: We offer flexible design options for terminal locations, tank dimensions, and monitoring accessories to fit specific project layouts.
Superior Thermal Efficiency: Utilizing high-grade mineral oil and an optimized convection design to maintain safe operating temperatures even under continuous 100% load.
Reinforced Structural Integrity: The heavy-duty steel tank and anti-vibration core clamping system are built to withstand harsh shipping conditions and rugged site environments.
High-Purity Copper Winding: 100% oxygen-free copper ensures the lowest electrical resistance, minimizing energy waste and heat generation.

Detailed Technical Specifications

Rated Power: 400kVA / 500kVA Three-Phase
Voltage Configuration: 20kV Primary (High Voltage) to 0.4kV/400V Secondary (Low Voltage)
Frequency: 50Hz / 60Hz compatible for global grid synchronization
Core Material: High-permeability, cold-rolled grain-oriented (CRGO) silicon steel for reduced no-load loss and whisper-quiet operation
Cooling System: ONAN (Oil Natural Air Natural) with expanded surface area corrugated fins for maximum heat exchange
Insulation Level: LI 125kV / AC 50kV (High-standard dielectric strength)
Standard Compliance: Fully manufactured and tested according to IEC60076 and IEEE standards

Solution for High-Dust & Sandy Environments

In many African regions, extreme sandstorms and fine dust pose a significant challenge to equipment airtightness. Dust buildup on traditional seals often leads to brittleness and subsequent leakage.

The Issue: Sand abrasion and dust accumulation act as a desiccant, drawing oil out of standard gaskets and leading to system failure.

Our Engineering Solution: We implement a Triple-Barrier Sealing System. This includes Aviation-Grade Nitrile Gaskets protected by a secondary Dust-Shield Cover.

Leakage Prevention: Every unit undergoes a 48-hour High-Pressure Leak Test and vacuum oil filling. The fully-welded corrugated tank eliminates the need for a conservator in this range, creating a hermetically sealed environment that keeps sand out and oil in, ensuring zero-leakage performance for decades.

FAQs for African Distributors & EPC Projects

Q1: Can you provide customized branding (OEM) for our local engineering brand?

A1: Certainly. We support full OEM services, including custom nameplates, color specifications (RAL codes), and technical documentation branded with your company info.

Q2: How does this transformer perform in the 45°C+ ambient temperatures common in Africa?

A2: Our 500kVA units are designed with a 55/65°C temperature rise limit, utilizing premium insulating oil with high flashpoints to ensure stable operation in extreme heat.

Q3: Is this unit compatible with the specific 20kV grid requirements in my country?

A3: Yes, we can adjust the tapping range (e.g., ±2x2.5%) to ensure the transformer perfectly matches your local grid voltage fluctuations.

Q4: What is the protection level against sand and salt-mist corrosion?

A4: We use a C4-class anti-corrosion coating system, involving multi-layer electrostatic spraying that prevents sand-blasting erosion and rust.

Q5: What is the lead time for a standard EPC project requiring 10-20 units?

A5: Our specialized production line for 400kVA-500kVA units ensures a fast turnaround of 20-30 days from order confirmation to port delivery.

Q6: Do you provide on-site installation guidance for data center setups?

A6: We provide comprehensive video tutorials and 24/7 remote engineering support to ensure your "Easy Install" process is seamless.

Distribution transformer installation and sealing details

Request your technical data sheet and competitive OEM quote today to power your next data center project!

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