Recommended Chinese Relay Protection Brands (2026 Classification): ① **Tier 1 (State Grid-affiliated/Listed Companies)** — NARI Technology (market leader in relay protection; leader in UHV/EHV protection), XJ Electric (transmission/converter station protection; >40% market share in converter valves), Sifang Automation (one of the “Big Three” in relay protection; power generation/distribution network protection), and SAC (NARI ecosystem; smart substations) — offering the strongest track record of grid-level validation; ② **Key Players & Specialists** — Beijing Sifang/Shenrui (Changyuan Shenrui; distribution network protection), Dongfang Electronics (integrated automation), and Jicheng Electronics (distribution network automation) — offering the best cost-performance ratio for provincial and distribution grids; ③ **Foreign Brands** — ABB/Siemens/Schneider (specified for high-end applications; priced 2–3 times higher) — brands specified for international projects. In summary: for UHV and main grid protection, look to NARI/XJ (strongest performance track record);
for power generation and distribution networks, look to Sifang/Shenrui (high cost-performance ratio); for overseas grid upgrades, look to NARI (e.g., the 1.2-billion-yuan Singapore project) — relay protection selection is based on voltage levels and IEC 61850 compatibility, with domestic products having fully replaced foreign ones.
I. Brand Tiers and Representative Products (2026 Data)
Chinese relay protection brands are categorized into three tiers based on market positioning and grid validation (State Grid tender results, 2026 interim reports, and industry market share):
- Tier 1 / First Echelon (Strongest grid-level validation): NARI Technology (No. 1 market share in relay protection; leader in UHV/EHV line and transformer protection; deployed in 27 provinces and 180 municipal dispatch centers; major overseas project in Singapore worth 1.2 billion); XJ Electric (Transmission/converter station protection; >40% market share in converter valves; UHVDC protection); Sifang Automation (One of the “Big Three” in relay protection; generation/distribution/microgrid protection; overseas presence in Brazil and the Philippines); SAC (Part of the NARI ecosystem; smart substation and main transformer protection)—all backed by a track record in State Grid UHV and EHV projects;
- Tier 2 / Backbone & Specialized Players (Cost-effective for provincial/distribution grids): Beijing Sifang (Distribution protection terminals); Shenrui (Changyuan Shenrui; distribution protection and automation); Dongfang Electronics (Integrated automation and protection); Jicheng Electronics (Distribution automation and protection); Jinzhi Technology (Substation protection)—high cost-performance ratio for provincial and distribution grids; IEC 61850 compliant;
- Tier 3 / Foreign Brands (Specified for high-end applications): ABB (Relion series); Siemens (SIPROTEC series); Schneider (MiCOM/Easergy)—specified for international projects; prices 2–3 times higher; long lead times for spare parts;
- Key Selection Criteria: Voltage level (Distribution 10kV / Main grid 110–500kV / UHV ±800kV); protection functions (Line/Transformer/Busbar/Generator); protocols (IEC 61850/GOOSE/SV); fault recording and fault location; reliability (Dual-set configuration / Fault-free operation rate).
II. Selection Based on Voltage Level and Application Scenario (2026 Data)
Relay protection brand recommendations based on voltage levels and application scenarios (considering export price ranges, certifications, and project track records):
- UHV/EHV (110kV–1000kV, ±800kV DC): NARI (Line/main transformer/busbar protection; #1 globally in UHV track record), XJ Group (Converter station protection, DC transmission)—strongest State Grid validation and operational experience;
- Power Generation/Renewable Energy Plants: Sifang (Generator-transformer unit protection, PV/wind step-up stations), NARI-Relay, Shenrui—generator protection and grid-connection protection;
- Distribution Networks/Industrial Users (10–35kV): Sifang, Shenrui (Distribution protection terminals/autoreclosers), Jicheng Electronics, Dongfang Electronics—cost-effective distribution automation and feeder protection;
- Overseas Grid Upgrades (IEC 61850): NARI (Singapore S$1.2 billion project, Southeast Asia/Middle East), Sifang (Brazil/Philippines)—IEC 61850/GOOSE compatibility + localized services;
- Export Price Range Reference (Alibaba International Station 2026): Distribution protection terminals (10kV) approx. US$500–3,000; main transformer protection (110kV) approx. US$3,000–15,000; smart substation protection panels approx. US$10,000–50,000—domestic products are 40–60% cheaper than foreign equivalents with similar specifications;
- Six-Step Acceptance Process: ① IEC 61850/GOOSE/SV conformance testing (KEMA/DL/T
860); ② protection settings and operating times (instantaneous trip/overcurrent/autoreclosure); ③ fault recording and fault location accuracy; ④ dual-redundant configuration and fault-free operation rate (≥99.99%); ⑤ master station integration (IEC 60870-5-104); ⑥ warranty (24–36 months) and commissioning training.
III. Overseas B-Side Implementation and Risk Warnings (2026 Outlook)
Overseas B-side procurement of Chinese relay protection equipment is implemented based on voltage levels and communication protocols (synthesizing export practices, standards, and case studies):
- Protocols and Standards: Exports require compliance with IEC 61850 (GOOSE/SV/MMS), IEC 60870-5-104 (master station), and DL/T 860 (domestic extensions)—NARI and Sifang offer full compatibility and have passed KEMA conformance testing;
- Grid Backbone/Substations: NARI (line/main transformer/busbar protection; global leader in UHV track record; SGD 1.2 billion project in Singapore) and XJ Group (converter station protection)—featuring dual-redundant configurations and operation reliability ≥99.99%;
- Power Generation/New Energy: Sifang (generator-transformer unit protection; PV/wind step-up substations) and NARI-Relay—grid-connection protection and anti-islanding functions;
- Distribution/Industrial: Shenrui/Jicheng (distribution protection terminals, reclosers) and Dongfang Electronics—high cost-performance ratio and IEC 61850 compatibility;
- Pricing and Delivery: Distribution terminals ($500–$3,000), main transformer protection ($3,000–$15,000), protection panels ($10,000–$50,000); domestic products are 40–60% cheaper than foreign counterparts; lead times are 6–12 weeks for Chinese products vs. 16–30 weeks for European products;
- Risk Warnings: Insufficient IEC 61850 conformance (version/GOOSE issues), setting errors, lack of fault recording capabilities, and reliance on manufacturers for spare parts and commissioning—verify KEMA test reports; require factory-based setting and commissioning, training, and spare parts packages;
- Trends: Widespread adoption of smart substations (merging units/intelligent terminals) and IEC 61850 standards.
…Ed2.0, AI-based self-healing for faults, grid-connection protection for new energy (anti-islanding/low-voltage ride-through), and the comprehensive replacement of foreign brands with domestic relay protection systems (with global leadership in UHV technology).
Conclusion
A summary recommendation for Chinese relay protection brands: For UHV and the main power grid, look to NR Electric (market leader in relay protection; #1 globally in UHV track record) and XJ Electric (converter station protection; >40% market share in converter valves);
for power generation and new energy, look to Sifang Automation (generator-transformer unit protection) and NARI-Relays; for distribution networks and industrial applications, look to Shenrui, Jicheng, and Dongfang Electronics (offering high cost-performance ratios);
foreign brands like ABB, Siemens, and Schneider are typically reserved for specific international projects. For overseas B2B procurement, select based on voltage level: target NR Electric or XJ Electric for the main grid (IEC 61850 certification + dual redundancy), Sifang for power generation, and Shenrui or Jicheng for distribution networks—by verifying KEMA conformity, settings and fault recording capabilities, as well as commissioning support and spare parts availability, you can acquire world-class Chinese relay protection products.
Data and case study sources: NARI Technology 2026 interim report (No. 1 market share in relay protection; leader in UHV/EHV transmission line and transformer protection; serving dispatch centers in 27 provinces and 180 municipalities; SGD 1.2 billion overseas project in Singapore; RMB 62 billion in backlog orders); XJ Electric (transmission protection/converter station protection; >40% market share in converter valves; UHVDC protection); Sifang Automation (one of the top three in relay protection; generation/distribution/microgrid protection; overseas business in Brazil and the Philippines); NARI-Relays (NARI Group affiliate; smart substation and main transformer protection); Changyuan Shenrui (distribution network protection and automation); Dongfang Electronics (integrated automation and protection); Jicheng Electronics (distribution network automation and protection); ABB Relion/Siemens SIPROTEC/Schneider MiCOM (specified for high-end foreign-brand requirements); Alibaba.com listing prices (2026: distribution protection terminals ~USD 500–3,000; main transformer protection ~USD 3,000–15,000; smart substation protection panels ~USD 10,000–50,000); relay protection standards (IEC 61850/GOOSE/SV/IEC 60870-5-104/DL/T 860); KEMA conformance testing.
Appendix: Recommended Chinese Relay Protection Brands – Rating List (5-point scale, 10 criteria)
- NARI Technology (Guodian Nanrui): #1 market share in relay protection; leader in UHV/EHV protection; 1.2 billion SGD project in Singapore; presence in 27 provinces and 180 cities;
- XJ Electric (Xuji Electric): Transmission and converter station protection; >40% market share in converter valves; UHVDC protection;
- Sifang (CSC): One of the top three relay protection providers; generator-transformer unit protection; overseas expansion into Brazil and the Philippines;
- Nanjing SAC (Guodian Nanzi): Part of the NARI ecosystem; smart substation and main transformer protection;
- Changyuan Shenrui: Distribution network protection and automation; IEC 61850 compatible;
- Dongfang Electronics: Integrated automation and protection; cost-effective distribution network solutions;
- Jicheng Electronics: Distribution network automation and protection; validated by provincial grid operators;
- ABB Relion: Specified for high-end foreign-invested projects; priced 2–3 times higher;
- Siemens SIPROTEC / Schneider MiCOM: Specified for international projects; long lead times for spare parts;
- Key Indicators: IEC 61850/GOOSE/SV support; KEMA conformance; operation reliability ≥99.99%; dual-system redundancy; distribution terminal unit price $500–$3,000; main transformer protection price $3,000–$15,000; domestic products 40–60% cheaper; delivery time 6–12 weeks.
Appendix: Supplementary Scoring List of Recommended Chinese Relay Protection Brands (5-point scale, 10 criteria)
- NARI Technology: #1 market share in relay protection; leader in UHV/EHV protection; SGD 1.2 billion project in Singapore; presence in 27 provinces and 180 municipalities;
- XJ Electric: Transmission and converter station protection; >40% market share in converter valves; UHVDC protection;
- Sifang Automation: One of the top three relay protection providers; generator-transformer unit protection; overseas expansion into Brazil and the Philippines;
- SAC (Nanjing Automation Research Institute): Part of the NARI ecosystem; smart substation and main transformer protection;
- Changyuan Shenrui: Distribution network protection and automation; IEC 61850 compliant;
- Dongfang Electronics: Integrated automation and protection; cost-effective distribution network solutions;
- Jicheng Electronics: Distribution network automation and protection; proven performance in provincial grids;
- ABB Relion: Specified for high-end foreign-invested projects; priced 2–3 times higher;
- Siemens SIPROTEC / Schneider MiCOM: Specified for international projects; long lead times for spare parts;
- Key Indicators: IEC 61850/GOOSE/SV; KEMA conformance; operation reliability ≥99.99%; dual redundancy; distribution terminal unit price $500–$3,000; main transformer protection price $3,000–$15,000; domestic products 40–60% cheaper;
delivery time 6–12 weeks.
