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Quality Control
Quality Control Process

Strict International Quality, Environmental, and Safety Standards

HENTG POWER’s factory operates under a rigorous quality management system, fully certified by ISO 9001 (Quality Management), ISO 14001 (Environmental Management), ISO 45001 (Occupational Health & Safety), and GB/T 23001 & GB/T 23006 (China national standards for transformer manufacturing). These certifications ensure consistent safety, reliability, and efficiency across all MV and HV transformer production.

Product Reliability and Innovation

  • Over 40 patented technologies enhancing transformer design, efficiency, and performance.

  • More than 24 type test reports verified by CANS (China National Accreditation Service), demonstrating rigorous product testing and long-term reliability.

International Market Compliance

HENTG POWER transformers meet global and regional standards, including: CE (Europe), IEC 60076, NRS (South Africa), SASO (Saudi Arabia), NOM (Mexico), UL & CSA (North America), and PNS/Philippines, SIRIM/Malaysia, NEA/Singapore standards for Southeast Asia. These certifications ensure safe, efficient, and compliant deployment for utilities, EPC contractors, renewable energy projects, and industrial applications worldwide.

Our Certificates
China Hunan Hentg Power Electric Technology Co., Ltd. certification
CE
  • Certificate Number:ICR/VC/HM2505236
  • Issue Date:2025-05-30
  • Expiry Date:2030-05-29
  • Scope:Product sales type: S11, S12, S13, S20, SH15, 22, SC13, SC(B)13, SCH(B)15, SC14, SCH(B)14, SC18, SC(B)18, ZG5 Series
  • Issued By:ICR
China Hunan Hentg Power Electric Technology Co., Ltd. certification
Environmental Management System Certification
  • Certificate Number:06523S00779ROM
  • Issue Date:2023-07-19
  • Expiry Date:2026-07-18
  • Scope:Manufacturing of transformers, high and low voltage complete equipment
  • Issued By:CFL
China Hunan Hentg Power Electric Technology Co., Ltd. certification
Environmental Management System Certification
  • Certificate Number:06523E00820ROM
  • Issue Date:2023-07-19
  • Expiry Date:2026-07-18
  • Scope:Manufacturing of transformers, high and lowvoltage complete equipment
  • Issued By:CFL
China Hunan Hentg Power Electric Technology Co., Ltd. certification
Environmental Management System Certification
  • Certificate Number:06523Q01981ROM
  • Issue Date:2023-07-19
  • Expiry Date:2026-07-18
  • Scope:Manufacturing of transformers, high and lowvoltage complete equipment
  • Issued By:CFL
China Hunan Hentg Power Electric Technology Co., Ltd. certification
ISO9001:2015
  • Certificate Number:06523Q01981ROM
  • Issue Date:2023-06-19
  • Expiry Date:2026-06-18
  • Scope:Manufacturing of transformers and complete sets of high and low voltage equipment (with qualifications required)
  • Issued By:CFL Certification Center
China Hunan Hentg Power Electric Technology Co., Ltd. certification
Type Test of Oil-immersed Transformer S11-M-2500/20
  • Certificate Number:ZC80150525R005
  • Issue Date:2015-12-13
  • Scope:S11 20KV Oil-immersed Transformer
  • Issued By:CNAS
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