Oil-Immersed Transformers · Power Transformers

10 MVA 66kV/11kV Three-Phase Oil-Immersed Power Transformer

This 10 MVA / three-phase oil-immersed power transformer is designed for utility substation, grid interconnection, and large industrial applications. Suitable for transmission and sub-transmission voltage classes. IEC 60076 design reference; ONAN/ONAF cooling options available. Manufactured and exported from Hefei, China.

技術仕様

定格容量 10 MVA (10,000 kVA)
高圧 66.0 kV
低圧 11.0 kV / customized
Frequency 50 Hz / 60 Hz
相数 Three Phase
冷却方式 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)
巻線材料
Core Material CRGO silicon steel, grain-oriented
Insulation Medium Mineral insulating oil
規格 IEC 60076 design reference
Installation Outdoor substation / indoor GIS substation

製品情報

ステータス

公開済み

製品ID

10_MVA_66KV_11KV_THREE_PHASE_OIL_IMMERSED_POWER_TRANSFORMER

最終更新日

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

  • 10 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

よくある質問

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.

規格とコンプライアンス

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.

梱包、配送、サービス

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.

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.

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