220 kV Power Transformer

• Junengda 220 kV Power Transformer  Overview>>>

Junengda 220 kV Power Transformer delivers cutting-edge performance for high-voltage energy transmission, engineered to meet the rigorous demands of global power infrastructure. With 100% domestically developed technology and materials, our transformers ensure unmatched reliability and efficiency, tailored for diverse applications from renewable energy integration to grid modernization.

• Junengda 220 kV Power Transformer  Technical Specifications>>>

220KV-class three-phase double-winding non-excitation regulator power transformer main technical parameters

Rated power (KVA)	High Volitage (kV)	H.V.Tap range	Low Voltage (kV)	Connection symbol	Short- Circuit Impedance (%)	No-Load Loss (W)			On-Load Loss (W)			No-Load Current (%)
						Type9	Type10	Type11	Type9	Type10	Type11
31500	220 242	±8×1.25% ±8×1.5%	6.3,6.6 10.5,11 13.8,15.75 18,20 35,38.5	YNd11	12~14	35	135	32	128	28	128	0.7
40000						41	157	37	149	33	149	0.7
50000						49	189	44	180	39	180	0.65
63000						58	220	52	209	46	209	0.65
75000						67	250	60	238	54	238	0.6
90000						77	288	69	274	62	274	0.55
120000						94	345	85	328	75	328	0.55
150000						112	405	101	385	90	385	0.5
160000						117	425	105	404	94	404	0.49
180000						128	459	115	436	102	436	0.46
240000						160	567	144	539	128	539	0.42

220KV-class three-phase double-winding power transformer load tap main technical parameters

Rated power (KVA)	High Voltage (KV)	H.V.Tap range	Low Voltage (kV)	Connection symbol	Short- Circuit Impedance (%)	No-Load Loss (W)			On-Load Loss (W)			No-Load Current (%)
						Type9	Type10	Type11	Type9	Type10	Type11
31500	220 242	±8×1.25% ±8×1.5%	6.3,6.6 10.5,11 20,34.5 35,37 38.5,66 69	YNd11	12~14	38	34	30	135	128	128	0.7
40000						45	41	36	157	149	149	0.63
50000						54	49	43	189	180	180	0.56
63000						63	57	50	220	209	209	0.56
90000						80	72	64	288	274	274	0.49
120000						99	89	79	346	329	329	0.49
150000						116	104	93	405	385	385	0.42
180000						135	122	108	468	445	445	0.42

• Junengda 220 kV Power Transformer Features>>>

 

Materials and Certification Standards

Junengda 220kV Power Transformer delivers cutting-edge performance tailored for international markets, combining stringent certifications, robust materials, and advanced engineering. Designed for reliability and efficiency, it meets IEC 60076, IEEE C57.12, and GB 20052-2020 standards, ensuring compliance with global energy regulations.

Key Markets & Applications

Widely adopted in Southeast Asia, Africa, and the Middle East, this 220kV power transformer excels in grid infrastructure, industrial zones, and renewable energy integration (e.g., solar/wind farms), providing stable power transmission even in harsh environments.

Superior Structural Design

Crafted with cold-rolled silicon steel cores and high-temperature-resistant insulation, the transformer minimizes no-load losses and extends operational lifespan. Its modular plug-in cable terminals reduce installation time and enhance maintenance efficiency, while anti-corrosive coatings ensure durability in coastal or high-humidity regions.

Smart Grid Compatibility

Equipped with real-time monitoring systems, the 220kV power transformer supports smart grid demands, enabling predictive maintenance and load optimization. Its low-noise design (<65dB) and fire-retardant materials prioritize safety for urban and eco-sensitive areas.

Sustainable Performance

With 98.5% efficiency ratings and recyclable oil-cooling systems, Junengda’s 220kV transformer aligns with global sustainability goals, reducing carbon footprints for utilities and industries.

• Junengda 220 kV Power Transformer  Advantage>>>

Enhanced Safety & Reliability

Designed with advanced separable cable terminals and shielded connections, the Junengda 220kV transformer minimizes partial discharge risks, ensuring compliance with stringent safety standards like GB/T 19212.27-20172. Its insulated structure and corrosion-resistant materials prevent electrical faults, guaranteeing reliable operation even under extreme conditions.

Superior Operational Stability

Featuring optimized winding configurations and precision-engineered components, this transformer maintains stable performance across fluctuating loads. The use of high-quality insulating oil (breakdown voltage ≥60kV) and reinforced shielding eliminates hotspots, extending service life and reducing downtime1.

Low Maintenance Costs

Junengda’s modular design simplifies inspections and repairs. Critical components like formed angle rings and corrugated barriers ensure long-term durability, while vacuum-impregnated insulation reduces oil degradation, slashing maintenance frequency and costs.

Space-Saving Efficiency

With a compact footprint and innovative mid-terminal connection design, the transformer maximizes space utilization without compromising performance. Ideal for urban substations or constrained environments, it delivers high power density and easy installation.

Eco-Friendly & Energy-Efficient

Aligned with global sustainability goals, the Junengda 220kV transformer boasts ultra-low no-load losses and high energy efficiency. Its eco-conscious materials and leak-proof construction meet rigorous environmental regulations, minimizing carbon footprint.

Why Choose Junengda 220kV Power Transformer?

From grid infrastructure to industrial applications, Junengda combines safety, reliability, and efficiency to redefine power transmission. Trusted by utilities worldwide, it’s the smart choice for projects demanding uncompromising quality and performance.

 

• Junengda 220 kV Power Transformer  Case>>>

1.Peru’s Andean Mega Solar Plant

Junengda 220kV Power Transformers are integral to Spain’s Enhol Group’s 1.2 TWh/year solar project in Peru, the largest in the Andean region. Custom-designed split-type transformers ensure stable power transmission across seismic zones, with enhanced insulation and shielding technology to withstand 0.5g earthquakes. Their robust design guarantees uninterrupted energy supply for 547,000 households, accelerating Peru’s green transition.

2.Germany’s BorWin6 Offshore Wind Farm

In the North Sea, Junengda transformers support the BorWin6 HVDC project, converting offshore wind energy into grid-ready power. These units enable efficient voltage regulation and fault tolerance for gas-insulated switchgear (GIS), critical for Germany’s 200 km submarine cable network. Their compact design and high seismic adaptability ensure seamless integration into confined offshore platforms.

3.Liaoning Gaoling HVDC Retrofit, China

Junengda 220kV transformers optimized reactive power control in the Gaoling Back-to-Back Converter Station. By integrating advanced SC capacitor banks and adaptive filtering, they resolved harmonic distortions and stabilized grid operations during high-load scenarios. Field tests confirmed a 15% efficiency boost, setting a benchmark for cross-regional power exchange in Northeast Asia.

4.Smart Grid Modernization in Hubei, China

Junengda transformers equipped with multi-source sensing systems are deployed across Hubei’s smart grids. Real-time monitoring algorithms predict mechanical stress and thermal fluctuations, reducing downtime by 30%. This innovation, validated in provincial pilot projects, supports China’s shift toward AI-driven grid resilience.

• Junengda 220 kV Power Transformer FAQ>>>

Q1: What are the key features of the Junengda 220kV Power Transformer?

The Junengda 220kV Power Transformer is designed for high-voltage transmission, offering superior efficiency, robust construction, and compliance with international standards. Key features include low energy loss, high-temperature resistance, and a durable design for long-term reliability in harsh environments.

Q2: Where can the Junengda 220kV Transformer be applied?

This transformer is ideal for power grids, substations, industrial plants, and renewable energy systems requiring stable 220kV voltage transformation. Its adaptability ensures seamless integration into both urban and remote infrastructure.

Q3: How energy-efficient is the Junengda 220kV Power Transformer?

Junengda transformers utilize advanced core materials and optimized winding techniques to minimize no-load and load losses, ensuring energy efficiency and reduced operational costs over their lifespan.

Q4: What certifications does Junengda hold for its 220kV transformers?

Junengda 220kV Power Transformers meet IEC, IEEE, and ANSI standards, with certifications ensuring safety, performance, and environmental compliance. Custom designs can also align with regional requirements.

Q5: How does Junengda ensure transformer reliability?

Every Junengda 220kV transformer undergoes rigorous testing, including impulse, temperature-rise, and partial discharge tests. Our quality control processes guarantee durability and consistent performance under extreme conditions.

Q6: Can the Junengda 220kV Transformer be customized?

Yes. Junengda offers tailored solutions for voltage ratios, cooling methods (ONAN/ONAF), and accessories like bushings or monitoring systems to meet specific project needs.

Q7: What is the maintenance requirement for this transformer?

Designed for low maintenance, the Junengda 220kV Power Transformer features corrosion-resistant materials and optional remote monitoring systems to simplify inspections and extend service intervals.

Q8: What warranty does Junengda provide?

All Junengda 220kV transformers come with a standard 5-year warranty, covering manufacturing defects. Extended warranties and after-sales support are available upon request.

Q9: Does Junengda offer international shipping?

Yes. Junengda ships transformers worldwide, with packaging designed to withstand long-distance transport. Logistics and customs documentation are handled by our experienced team.