250 kVA 33kV Three-Phase Oil-Immersed Distribution Transformer

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กำลังไฟฟ้าที่กำหนด	250 kVA
Primary Voltage (U1)	33,000 V (33 kV)
Secondary Voltage (U2)	415 V / 240 V (3-Phase 4-Wire)
Vector Group	Dyn11
ความถี่ที่กำหนด	50 Hz
วิธีการระบายความร้อน	ONAN (Oil Natural Air Natural)
Primary Current (I1)	4.37 A
Secondary Current (I2)	347.8 A
Guaranteed No-Load Loss (P0)	400 W
Guaranteed Load Loss (Pk at 75°C)	2750 W
Short-Circuit Impedance (Uk)	4.0%
HV Insulation Level	LI 170 / AC 70 (33kV Class)
Temperature Rise Limits	Top Oil ≤ 50K, Winding ≤ 55K (45°C Ambient)
Creepage Distance	≥ 31 mm/kV (Outdoor Tropicalized Porcelain)
Core & Coil Weight	560 kg
Insulating Oil Weight	370 kg
Total Assembled Weight	1120 kg
Overall Footprint (L×W×H)	1200 mm × 820 mm × 1380 mm
Governing Standards	IEC 60076, BS 171, SON NIS, NERC Code

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250_KVA_33KV_THREE_PHASE_OIL_IMMERSED_DISTRIBUTION_TRANSFORMER

อัปเดตล่าสุด

2026-05-17T04:26:02.882452

Application Scenarios

Rural utility distribution network feeders
Industrial and mining site power supply
Infrastructure and EPC contractor projects in Africa and MENA
Renewable energy grid connection at voltage class

Key Features

250 kVA rated capacity for rural utility and distribution network applications
class design suited for Africa, MENA, and IEC-standard grid markets
Oil-immersed ONAN structure for stable thermal performance in outdoor environments
Copper or aluminum winding options available to suit project budget requirements
Off-circuit tap changer with +/-2 x 2.5% or +/-5% range as standard

คำถามที่พบบ่อย

Please send us your required capacity, high voltage, low voltage (V), frequency (Hz), cooling method, vector group, tapping range, installation conditions, and destination country. We will respond with a configuration and indicative pricing within 24 hours.

The product can be produced according to IEC standards and customer technical specifications. Routine factory tests, insulation resistance, ratio, and load loss verification are standard. Type test reports available on request.

The product is prepared for export shipment with suitable packing and transport arrangements based on destination and handling requirements. Sea freight, air freight, and land transport options are available. Lead time is project-dependent and confirmed at order stage.

ตลาดและทรัพยากรที่เกี่ยวข้อง

🌍

Africa & MENA

11kV & 33kV IEC grid requirements

🌏

Middle East & GCC

IEC 60076 · up to 132kV · high ambient

🌎

Latin America

60Hz ANSI/IEEE · 13.8kV / 34.5kV

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IEC vs ANSI Standards

Which standard for your project?

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