OLTC / tap-changers

On-load and de-energised tap-changers — suppliers, technology and engineering.

Manufacturers & suppliers

• BTRAC Ltd United Kingdom · INFERRED
• CTR Manufacturing Industries Ltd India · INFERRED
• Easun MR Tap Changers India · INFERRED
• Easun Reyrolle Ltd India · INFERRED
• Elprom Heavy Industries (VOLTAP) Bulgaria · INFERRED
• Elprom Heavy Industries JSC Bulgaria · INFERRED
• Emco Electronics LLP India · INFERRED
• EMR Tap Changers Private Limited India · INFERRED
• Huaming Power Equipment Co., Ltd. China · INFERRED
• Liaoning Jinli Electric Power Electrical Appliance Co., Ltd. (JINLI) China · INFERRED
• Macpower Switchgear Pvt.Ltd India · INFERRED
• Maschinenfabrik Reinhausen (MR / Reinhausen Group) Germany · INFERRED
• Onload Gears Private Limited India · INFERRED
• Power Transformers Sales And Services (India) Private Limited India · INFERRED
• Pradeep Sales & Service Pvt. Ltd. India · INFERRED
• Prolec GE Waukesha United States · INFERRED
• Prolec GE Waukesha (Tap Changer Division) United States · INFERRED
• Stesalit Ltd. India · INFERRED
• Unipower Transformers Pvt. Ltd. India · INFERRED

Latest intelligence

• RK Infra Electricals wins Rs 164.74 cr Karnataka 220/66/11 kV substation — two 150 MVA + two 20 MVA transformers
  Power Peak Digest · 24 Jun 2026 [en]
• Hitachi Energy announces record ~JPY 48bn China investment to expand transformer capacity at Hefei subsidiary
  36Kr Japan · 22 Aug 2026 [ja]

Engineering & knowledge

• oltc maintenance
• oltc operation
• tap changer faults
• transformer oltc oil

Events

• Iraq Energy Expo & Conference 2026 Baghdad, Iraq · 2026-01-10
• POWERGEN International 2026 San Antonio, USA · 2026-01-20
• Mashhad Electricity Industry Exhibition 2026 Mashhad, Iran · 2026-01-21
• Powerelec Nigeria 2026 Lagos, Nigeria · 2026-02-03
• Korea Smart Grid Week 2026 (KSGW) Seoul, South Korea · 2026-02-04
• EPRI Transmission & Substations Task Force — Feb 2026 Charlotte, USA · 2026-02-09
• Malaysia Power & Electricity Expo 2026 Kuala Lumpur, Malaysia · 2026-02-11
• Doble Life of a Transformer Seminar 2026 San Diego, USA · 2026-02-16

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