25 MVA 110kV/11kV Three-Phase Oil-Immersed Power Transformer

Especificações Técnicas

Capacidade Nominal	25 MVA (25,000 kVA)
Alta Tensão	110.0 kV
Baixa Tensão	11.0 kV / customized
Frequency	50 Hz / 60 Hz
Fase	Three Phase
Método de Resfriamento	ONAN / ONAF optional
Vector Group	YNd11 / YNyn0 / customized
Tap Changer	On-load tap changer (OLTC) / Off-circuit optional
Tapping Range	+/-8 x 1.25% (OLTC) / +/-2 x 2.5% (OCTC)
Material do Enrolamento	Cobre
Core Material	CRGO silicon steel, grain-oriented
Insulation Medium	Mineral insulating oil
Padrão	IEC 60076 design reference
Installation	Outdoor substation / indoor GIS substation

Informações do Produto

Status

Publicado

ID do Produto

25_MVA_110KV_11KV_THREE_PHASE_OIL_IMMERSED_POWER_TRANSFORMER

Última Atualização

2026-05-17T04:26:02.882452

Application Scenarios

Utility substation step-down at / for distribution networks
Grid interconnection and power transmission projects in Africa and MENA
Large industrial facility main power supply transformers
EPC contractor packages for power plant auxiliary and grid connection

Key Features

25 MVA rated capacity for utility substation and grid applications
high voltage class for sub-transmission and transmission grid interconnection
ONAN standard cooling with ONAF upgrade option for higher ambient temperature sites
On-load tap changer (OLTC) available for voltage regulation under load
Full copper windings with CRGO grain-oriented silicon steel core for low losses

Perguntas Frequentes

Please send us your required MVA rating, primary voltage, secondary voltage, frequency (Hz), cooling class (ONAN/ONAF/OFAF), vector group, impedance, and installation site conditions. We will respond with a technical proposal and indicative pricing within 24 hours.

The product can be produced according to IEC 60076 and customer technical specifications for power transformer applications. Routine and type tests including temperature rise, impulse, and short-circuit withstand are available. Third-party witnessed testing can be arranged.

Large power transformers are shipped with oil-filled or oil-free transport options depending on voltage class and destination. All units include full documentation: routine test report, nameplate data, packing list, and certificate of origin. Lead time is confirmed at order stage based on specification complexity.

Mercados e Recursos Relacionados

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Africa & MENA

11kV & 33kV IEC grid requirements

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Middle East & GCC

IEC 60076 · up to 132kV · high ambient

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Latin America

60Hz ANSI/IEEE · 13.8kV / 34.5kV

Guia do Comprador

Como comprar da China

IEC vs ANSI Standards

Which standard for your project?

Normas e Conformidade