400 kVA Power Transformer
- Primary Voltage Ratings: 10kV, 6kV
- Secondary Voltage Ratings: 400V
- H.V. TAP RANGE: ±2 x 2.5%
- CONNECTION TYPE: DYn11
- TYPE: hermetic tank
- Standards: IEC
- Application: Distribution system
- Power Rating: 400 kVA
- Certificate: CE
- Cooling Method: ONAN
These 400 kVA three-phase power transformers, available in 6 kV and 10 kV options, feature Medium Tension Porcelain/Plug-In Bushings and hermetic tanks. Designed for outdoor use, they comply with IEC and EN standards and meet Tier 2 efficiency requirements for reduced energy consumption and carbon emissions. Key specs include ±2 × 2.5% voltage regulation, idling losses ≤ 610 W, short-circuit losses ≤ 4,600 W, and noise level ≤ 58 dB. They come with a 24-month warranty and are suitable for temperatures from -45°C to +40°C.
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These high-efficiency 400 kVA three-phase power transformers are designed for the Romanian market. Available in two high-voltage options (6 kV and 10 kV), both models feature a low voltage of 0.4 kV. They are equipped with Medium Tension Porcelain Bushings and designed for outdoor use with a hermetic tank structure. Complying with IEC and EN standards, these transformers meet Tier 2 efficiency requirements, offering significant energy savings and reduced carbon emissions.
Testing and Performance:
- MV Winding Test Voltage:
- 6 kV Model: 60 kV
- 10 kV Model: 75 kV
- Industrial Frequency Test Voltage for MV Winding (1 min):
- 6 kV Model: 25 kV
- 10 kV Model: 35 kV
- Industrial Frequency Test Voltage for LV Winding (1 min): 5 kV
- Full-Pulse Test Voltage for External Insulation Atmospheric Discharges:
- 6 kV Model: 60 kV
- 10 kV Model: 75 kV
- Industrial Frequency Test Voltage for Insulation in Dry State (1 min):
- 6 kV Model: 32 kV
- 10 kV Model: 42 kV
- Industrial Frequency Test Voltage for Insulation Under Rain (1 min):
- 6 kV Model: 20 kV
- 10 kV Model: 28 kV
Losses and Efficiency:
- Idling Losses: ≤ 610 W
- Short-Circuit Losses: ≤ 4,600 W
- Noise Level: ≤ 58 dB
- Efficiency: Meets Tier 2 efficiency requirements for reduced energy consumption and lower carbon footprint.
Environmental and Operational Specifications:
- Outdoor Use: Yes
- Temperature Range: -45°C to +40°C
- Altitude Above Sea Level: < 1,000 m
Certifications and Warranty:
- Certifications: ISO 9001, ISO 14001
- Warranty: 24 months
These 400kVA transformers are engineered to deliver reliable performance while ensuring high efficiency and compliance with international standards. Ideal for various industrial and commercial applications, they offer enhanced durability and operational safety in challenging environments.
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