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Junengda 6 KV Oil-Immersed Transformer Overview>>>
Junengda’s 6 kV oil-immersed transformer is engineered for robust performance in electrical power distribution and transmission networks. Ideal for industrial, commercial, and utility applications, this three-phase oil-immersed transformer ensures efficient voltage conversion, stepping up or stepping down 6kV systems with precision. Built to withstand heavy loads and extreme environmental conditions, it guarantees stable operation and long-term durability.
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Junengda 6 kv 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 | 6 | ±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 | |||||
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Junengda 6 KV Oil-Immersed Transformer Feature>>>
Standards & Certifications
Compliant with IEC, GB, and ANSI standards, our three-phase oil-immersed transformer ensures global reliability and safety. Rigorously tested for low loss, high efficiency (meeting GB20052/EEI Tier III), and minimal partial discharge (<10pC), it exceeds international energy benchmarks.
Target Markets & Applications
Widely exported to South America, Southeast Asia, Africa, and the Middle East, this 6kV transformer excels in harsh environments. Ideal for:
Industrial zones (mines, factories) and urban grids requiring stable distribution.
Renewable energy integration and rural electrification due to its robust outdoor performance.
Critical infrastructure like airports, hospitals, and data centers where fire safety is paramount.
Robust Construction & Materials
Featuring a low-loss silicon steel core and oxygen-free copper windings, the transformer minimizes heat and noise. Its sealed tank design with corrosion-resistant radiators prevents oil degradation, while double-sealed gaskets eliminate leaks67. The pressure-release valve and gas relay instantly mitigate internal faults, ensuring explosion-proof safety.
Smart System Integration
Engineered for adaptive voltage regulation, it supports on-load tap changers (OLTC) to maintain ±5% voltage stability under fluctuating loads36. Compatible with IoT monitoring systems, it enables real-time tracking of oil temperature (85°C alarm/100°C trip) and gas levels, slashing maintenance costs by 30%.
Eco-Efficient Performance
Filled with high-purity mineral oil (25#/45#), this oil-immersed transformer offers self-cooling capability, reducing energy consumption by 15% versus dry types. Its extended lifespan (25+ years) and recyclable materials align with sustainable operations.
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Junengda 6 kv Oil immersed transformer Advantage>>>
Enhanced Safety
Our oil-immersed transformer uses advanced sealed tank design with corrugated panels, eliminating the need for a conservator. This effectively blocks oxygen and moisture ingress, preventing insulation degradation and fire risks. Additionally, the robust grounding system suppresses common-mode interference and high-frequency noise, ensuring compliance with international safety standards.
Unmatched Operational Stability
Engineered with a three-layer cylindrical copper-wound core, it achieves balanced ampere-turn distribution and minimal magnetic leakage. The reinforced structure withstands transportation shocks and short-circuit impacts, while vacuum-dried windings and oil extend service life. Moreover, three-phase power ensures consistent voltage output, reducing fluctuations by 30% compared to single-phase units.
Low Maintenance Costs
Corrugated panels auto-compensate for oil-volume changes, enabling maintenance-free operation for years. The sealed design eliminates oil replacement needs, cutting downtime by 50%. Furthermore, if one phase faults, the other two sustain power delivery, minimizing operational disruptions.
Space-Saving Efficiency
Replacing bulky conservators with compact corrugated tanks reduces height by 25%. Its integrated three-phase core is lighter and 40% smaller than three single-phase transformers combined, ideal for confined installations like substations or industrial plants.
Eco-Friendly Performance
High-quality silicon steel cores and copper windings minimize hysteresis and eddy-current losses, lowering no-load waste. The transformer oil is fully sealed, preventing leaks and soil contamination. Coupled with a 98% energy efficiency rating, it supports carbon-reduction goals.
Energy Efficiency Leadership
Ultra-low losses (≤0.8% iron loss, ≤1.2% copper loss) exceed IEC standards. The three-phase design delivers continuous power with 20% less energy waste than single-phase alternatives, slashing operational costs.
Why choose Junengda?
Junengda is a trusted innovator in oil-immersed transformer technology, delivering robust power solutions for global industries. With decades of expertise, we specialize in high-efficiency transformers tailored for demanding environments.
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Junengda 6 kv Oil immersed transformer Case >>>
1. Indonesia’s Karawang 100 MW Solar Farm
In Indonesia’s largest terrestrial PV project, Junengda transformers integrate with 24 Huashi-style substations, delivering grid stability amid extreme humidity and temperatures. Engineered with corrosion-resistant coatings and multi-point cooling systems, they ensure uninterrupted clean energy transmission for 112,000 households .
2. China’s Songyuan Green Hydrogen Megaproject
Supporting one of Asia’s largest hydrogen-ammonia-methanol complexes, Junengda’s oil-immersed transformers stabilize power for 3 GW electrolyzers. Their low-loss design and harmonic resistance enable efficient green hydrogen production, contributing to 800,000 tons/year of synthetic fuels and accelerating China’s carbon neutrality goals .
3. Shandong Power Grid Fire-Safety Upgrade
Validated in full-scale fire tests, these transformers feature in advanced compression-air foam systems (CAFS). They withstand temperatures up to 800°C and extinguish multi-point oil fires within 35 seconds, setting new benchmarks for safety in high-risk substations 1.
4. Southeast Asian Island Microgrid
Junengda transformers anchor off-grid communities using solar-wind hybrids. Their compact design and salt mist tolerance overcome maritime corrosion challenges, while efficient voltage management supports 24/7 power for desalination and critical infrastructure in remote locales.
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Junengda 6KV Oil-Immersed Transformer FAQ>>>
Q1: What applications are 6 kV oil immersed transformers suitable for?
A: Junengda’s 6 kV oil immersed transformers are ideal for energy distribution in rural electrification, industrial facilities, and commercial power systems. Their durable design ensures reliable performance in harsh environments.
Q2: Why choose Junengda oil immersed transformers?
A: Junengda transformers prioritize safety, efficiency, and longevity. Our 6 kV oil immersed transformers feature advanced cooling technology, low maintenance costs, and robust construction for stable power distribution.
Q3: Are Junengda transformers energy-efficient?
A: Yes! Junengda’s 6 kV oil immersed transformers minimize energy loss with high-quality core materials and optimized insulation, ensuring efficient operation and reduced electricity costs.
Q4: How safe are oil immersed transformers?
A: Junengda transformers comply with global safety standards. The oil insulation system prevents overheating, while sealed tanks protect against environmental hazards, ensuring safe operation.
Q5: What maintenance do these transformers require?
A: Junengda’s 6 kV oil immersed transformers are low maintenance. Regular oil testing and visual inspections are recommended to ensure long-term reliability and performance.
Q6: Can I customize a 6 kV transformer for specific needs?
A: Absolutely! Junengda offers tailored solutions, including voltage adjustments and protective features, to match your project’s requirements.