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The 1000 kVA oil-immersed transformer provides powerful, stable, and efficient three-phase power for demanding industrial and commercial environments. Built with premium materials and advanced oil-immersed cooling technology, this 1000 kva oil filled transformer delivers low losses, strong durability, and long-term operational reliability—ideal for factories, substations, and urban power systems.
Product Features
Sealed oil tank and Class A insulation of the 1000 kva oil filled transformer ensure leak-proof operation, excellent heat dissipation, and long-term high-load reliability.
The 1000 kva oil filled transformer adopts Dyn11 vector group and 6%–8% short-circuit impedance to deliver stable voltage, protecting precision equipment and production lines.
High-permeability silicon steel core and oxygen-free copper windings meet Level 1 energy standards, with low noise and reduced operating costs.
ONAN/ONAF cooling options boost capacity by 20%–30%, Class A insulation and IP30/IP54 protection ensure operation in varied environments with minimal maintenance.
Product Specifications
Parameter | Specification | Remarks |
Rated Capacity | 1000 kVA | Short-time overload capability up to 1.2 times rated capacity (duration ≤ 2 hours) |
Rated Voltage | HV side: 10 kV / 35 kV | Customizable to 6 kV / 20 kV; three-phase four-wire system |
Vector Group | Dyn11 | Excellent resistance to unbalanced loads |
Insulation Class | Class A (105℃) | Composite insulation structure with mineral insulating oil and multilayer insulation paper |
Short-circuit Impedance | 6%–8% | Strong short-circuit current withstand capability |
Protection Class | IP30 | IP54 enclosure available for outdoor applications |
Loss Performance | Compliant with National Level 1 Energy Efficiency Standard | Low-loss and energy-saving performance |
Cooling Method | Oil-immersed self-cooling (ONAN) | Upgradeable to oil-immersed forced air cooling (ONAF), capacity increase of 20%–30% |
Detailed description
The 1000 kVA oil immersed transformer is a high-capacity three-phase power distribution solution for industrial facilities, urban distribution networks, and high-load applications. It provides reliable power for heavy machinery, multiple production lines, and high-rise buildings, supporting continuous operation and simultaneous startup of multiple loads.
The oil immersed transformer features a step-lap laminated core made of high-permeability CRGO silicon steel and high- and low-voltage windings wound with oxygen-free copper conductors. The core and windings are fully sealed in a corrugated oil tank filled with high-quality transformer oil, ensuring effective insulation, heat dissipation, and low operating noise. The multilayer winding structure enhances short-circuit withstand capability and long-term reliability.
Standard configuration includes Dyn11 vector group, HV ratings of 10 kV / 35 kV (optional 6 kV / 20 kV), and a 400 V LV output in a three-phase four-wire system. ONAN cooling is standard, with optional ONAF cooling increasing capacity by approximately 20%–30%. The transformer is rated IP30 for indoor use, with an optional IP54 enclosure for outdoor installations.
Complying with National Level 1 Energy Efficiency standards, the 1000 kva oil filled transformer delivers low losses and stable voltage output. With a short-circuit impedance of 6%–8%, high-quality insulating oil, and a sealed tank design, oil immersed transformer offers strong short-circuit resistance, low maintenance requirements, and a service life exceeding 20 years.
FAQ
Our 1000 kVA oil filled transformer meets high efficiency standard. Low no-load and load loss reduce operation cost. We adopt step-lap silicon steel core and optimized winding structure, and conduct full type test before delivery.
This 1000 kVA transformer is fitted with oil level indicator, temperature gauge and pressure relief valve. Optional Buchholz relay detects internal faults. All protection parts follow IEC standard for safe long-term field operation.
Standard 1000 kVA oil filled transformers take 30–40 working days. Custom versions with special voltage or accessories need longer time. We will update production progress and complete full testing before shipment.
We provide 3-year warranty for our 1000 kVA oil filled transformer. We offer remote technical support for troubleshooting. Spare parts are available at favorable price after warranty period expires.
Yes, we can manufacture 1000 kVA oil filled transformers to ANSI requirements. We support 60Hz and custom voltage combinations. Relevant test reports and documents can be supplied for your project approval.
Whatsapp: +86-13961294414
E-mail: junqiu.wang@czguanghui.cn
jocelyn.duan@czguanghui.cn
ADD: No. 1, Yulong Middle Road, Xuejia Town, Xinbei District, Changzhou City, China
Mobile: 0086-15380068868
