250 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: 250kVA
Certificate: CE
Cooling Method: ONAN

250 kVA three-phase power transformers, available in 6 kV and 10 kV models, designed for the Romanian market. These sealed oil-immersed transformers offer high reliability, safety, and energy efficiency, meeting EU Tier 2 standards. Features include ONAN cooling, low noise operation, and robust insulation. Certified to ISO 9001, they are ideal for outdoor use, operating in temperatures from -45°C to +40°C, with a 24-month warranty.

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250kVA Transformer Specifications

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Rated Power: 250 kVA
Connection Group: D/Yn11
Cooling Type: ONAN (Oil Natural Air Natural)
MV/LV Terminals: Porcelain
Idling Losses: ≤425 W
Short Circuit Losses: ≤3250 W
Noise Level: ≤55 dB
Installation Type: Outdoor
Operating Temperature: -45°C to +40°C
Height Above Sea Level: < 1000 m

Daelim Transformer CE Certificate

The 250kVA three-phase power transformer, designed specifically for the Romanian market. These 250 kVA transformers, available in both 6 kV and 10 kV high voltage versions, are engineered for exceptional reliability, safety, and efficiency.

Model 1: 250/6/0.4kV

Primary Voltage: 6 kV
Secondary Voltage: 0.4 kV
MV Winding Test Voltage: 60 kV
MV Winding Industrial Frequency Test Voltage (1 min): 25 kV
LV Winding Industrial Frequency Test Voltage (1 min): 5 kV
Full-Pulse Test Voltage of External Insulation Atmospheric Discharges: 60 kV
Insulation Test Voltage (Dry State, 1 min): 32 kV
Insulation Test Voltage (Rain State, 1 min): 20 kV
Drain Line: 192 mm
Voltage Regulation: ±2 x 2.5%

Model 2: 250/10/0.4kV

Primary Voltage: 10 kV
Secondary Voltage: 0.4 kV
MV Winding Test Voltage: 75 kV
MV Winding Industrial Frequency Test Voltage (1 min): 35 kV
LV Winding Industrial Frequency Test Voltage (1 min): 5 kV
Full-Pulse Test Voltage of External Insulation Atmospheric Discharges: 75 kV
Insulation Test Voltage (Dry State, 1 min): 42 kV
Insulation Test Voltage (Rain State, 1 min): 28 kV
Drain Line: 192 mm
Voltage Regulation: ±2 x 2.5%

Key Features:

Sealed Oil-Immersed Design: Provides superior safety, performance, and environmental protection.
High Insulation Strength: Meets rigorous testing standards for both dry and wet conditions.
Energy Efficiency: Complies with EU Tier 2 efficiency standards.
Reliable Cooling: ONAN cooling system ensures optimal temperature management.
Low Noise Operation: Designed to operate quietly with a noise level ≤55 dB.
Certified Quality: ISO 9001 and ISO 14001 certified for quality and environmental management.
Versatile Operation: Effective in temperatures ranging from -45°C to +40°C and at altitudes up to 1000 meters above sea level.
Extended Warranty: 24-month warranty for enhanced reliability and peace of mind.

These 250kVA transformers are crafted to deliver outstanding performance and efficiency, addressing the diverse needs of the Romanian market while adhering to the highest standards of safety and environmental responsibility.