11 KV Three-phase Oil-immersed Power Distribution Transformer

• Junengda 11KV Oil-Immersed Transformer overview>>>

The Junengda 11KV three-phase oil-immersed transformer is engineered to optimize electrical power distribution and transmission systems, delivering unmatched efficiency and durability. Designed for stepping up or stepping down alternating current voltages, this transformer ensures stable performance under heavy loads and extreme environmental conditions, making it ideal for power stations, industrial facilities, mining operations, and urban infrastructure

 

 

 

 

 

• Junengda 11KV Oil-Immersed Transformer Technical Specifications>>>                                                                                         
  

  Rated Capacity(KVA)	Voltage Combination and Decomposition Ranges			Vector Group	No-load Loss(w)	Load Loss(w)	No-load current (%)	Short Circuit Impedance(%)
  	High Voltage Tap Range（kv）	Tap Changing Scope（%）	Low Voltage (kv)
  30	11	±2×2.5 ±5	0.4	Dyn11 Yzn11 Yyn0	100	630/600	1.50	4.0
  50					130	910/870	1.30
  63					150	1090/1040	1.20
  80					180	1310/1250	1.20
  100					200	1580/1500	1.10
  125					240	1890/1800	1.10
  160					280	2310/2200	1.00
  200					340	2730/2600	1.00
  250					400	3200/3050	0.90
  315					480	3830/3650	0.90
  400					570	4520/4300	0.80
  500					680	5410/5150	0.80
  630				Dyn11 Yyn0	810	6200	0.60	4.5
  800					980	7500	0.60
  1000					1150	10300	0.60
  1250					1360	12000	0.50
  1600					1640	14500	0.50
  2000					1940	18300	0.40	5.0
  2500					2290	21200	0.40

• Junengda 11 KV Oil-Immersed Transformer Features>>>

Standards & Certifications

Complies with IEC 60076, IEC 6013, and GB1094 series standards.
Meets rigorous international safety and performance requirements.

Primary Markets

Sold in 50+ countries/regions: Southeast Asia, the Middle East, Africa, South America.
Targets global markets with diverse environmental conditions.

Application Scenarios

Designed for 11KV distribution systems in power generation enterprises, industrial, and mining operations.
Suited for harsh environments requiring stable performance.

Structure & Materials

Compact, corrosion-resistant design for adaptability to harsh industrial settings.
Utilizes advanced insulation technology and precision manufacturing.

System Performance

Ensures stable operation across diverse environmental conditions.
Delivers high efficiency, low losses, and long-term durability.

• Junengda 11 KV Oil-Immersed Transformer Advantage>>>

• Junengda 11KV Oil-Immersed Transformer  Case >>>

1.Wind Farm Power Stabilization

In a 48 MW wind farm in Sichuan, Junengda 11 KV Oil-Immersed Transformers were integrated into the grid-connected system to stabilize voltage fluctuations caused by intermittent wind power. The transformers ensured seamless energy transfer from turbines to the 220 kV substation, enhancing grid resilience and supporting hybrid energy storage systems for frequency regulation.

2.High-Temperature Industrial Zones

Deployed in steel plants and chemical parks, these transformers excel in harsh environments. Their optimized thermal design, derived from uniform high-temperature insulation systems, maintains stable operation even at 170°C, reducing downtime in high-heat industrial processes.

3.Urban Substation Cooling Systems

A 220 kV substation in Hunan utilized Junengda transformers to upgrade its forced-oil air-cooling system. Paired with backup diesel generators, the transformers ensured uninterrupted cooling during dual power failures, preventing overloads and extending equipment lifespan.

4.Rural Grid Expansion

In remote villages across Yunnan, Junengda 11 KV Oil-Immersed Transformers were installed on pole-mounted platforms. Their compact design and corrosion-resistant tanks enabled efficient power distribution across mountainous terrain, aligning with China’s rural electrification goals.

• Junengda 11kV Oil-Immersed Transformer FAQ

1. What are the key features of Junengda 11kV Three-Phase Oil-Immersed Transformers?

Junengda transformers are designed for high efficiency and reliability in power distribution networks. They feature advanced oil-immersed cooling for optimal thermal management, robust insulation systems, and low-loss core materials to minimize energy waste. Their three-phase design ensures balanced power distribution, critical for grid stability.

2. How do Junengda transformers ensure voltage stability?

Utilizing high-quality silicon steel cores and precision winding techniques, Junengda transformers reduce no-load and load losses, maintaining voltage stability under fluctuating grid conditions. This aligns with industry standards for voltage regulation in unbalanced power systems.

3. What applications are Junengda 11kV transformers suitable for?

Ideal for industrial plants, renewable energy integration (e.g., wind farms), and urban power grids, these transformers support high-capacity power transmission while mitigating harmonics and voltage fluctuations, ensuring compatibility with modern grid demands.

4. How does the oil-immersed design enhance performance?

The oil-immersed structure provides superior insulation and cooling, extending operational lifespan. Junengda’s design incorporates CFD-validated fluid dynamics to prevent reverse oil flow disruptions, ensuring reliable protection against internal faults.

5. What measures are taken to reduce electromagnetic interference (EMI)?

Advanced winding configurations, such as sandwich and differential winding techniques, minimize parasitic capacitance and suppress high-frequency noise. This optimization enhances signal integrity in power lines, critical for PoE and smart grid applications.

6. How does Junengda address sustainability and energy efficiency?

By leveraging low-loss materials and eco-friendly insulating oil, Junengda transformers meet global energy efficiency standards. Their high capacity utilization reduces carbon footprint, aligning with green energy initiatives.

7. What maintenance practices are recommended?

Regular oil testing, thermal monitoring, and periodic inspections of bushings and cooling systems ensure long-term reliability. Junengda’s modular design simplifies maintenance, reducing downtime.

8. Are Junengda transformers compatible with smart grid technologies?

Yes, they support integration with IoT-based monitoring systems and adaptive control frameworks, enabling real-time load management and fault detection for future-proof grid solutions.