50000 KVA Step Down Power Transformer 110 KV To 11 KV
Description
Technical Parameters
Henan GNEE Electric Co., Ltd. is one of the leading manufacturers and suppliers of 50000 kva step down power transformer 110 kv to 11 kv in China, also supports customized service with low price. Welcome to buy discount 50000 kva step down power transformer 110 kv to 11 kv for sale here from our factory. If you have any enquiry about pricelist, please feel free to email us.
three phase oil immersed transformer introduction
The three-phase oil filled transformer is equipped with on load tap changer, the tapping range is ±2×2.5% at primary side, the cooling is ONAF. A step-down power transformer is a critical component in electrical distribution networks, designed to reduce voltage from 110 KV to 11 KV for efficient power delivery. With a massive 50,000 KVA capacity, it supports heavy industrial loads and urban grids. The "step-down" function lowers high-voltage electricity to safer, usable levels for residential, commercial, and industrial consumers.
oil immersed power transformer video
50000 KVA step down power transformer 110 KV To 11 KV details
Advantages
Core Design
Crafted from cold-rolled grain-oriented silicon steel sheets with high magnetic permeability, the core features a core-type structure. Utilizing a full oblique joint stacking method, the core columns adopt a multi-step circular cross-section design, ensuring that the iron bars match the core's cross-sectional area. This precision engineering minimizes magnetic flux leakage and enhances overall efficiency.
Winding Technology
The winding incorporates a corrugated oil channel system, eliminating the need for paint dipping and ensuring effective heat dissipation. Securely bound with high-strength tape, the concentric coils house a high-voltage winding equipped with taps for voltage regulation. These taps connect to an off-circuit tap switch mounted on the tank cover, enabling 10kV and 20kV voltage adjustments after power disconnection. This design ensures stable operation and adaptability to varying electrical demands.
Safety Protection System
For 30~2000kVA transformers, a pressure relief valve is standard, safeguarding against internal overpressure. Additionally, gas relays with alarm and tripping functions can be integrated per customer specifications. This comprehensive safety setup provides real-time monitoring and immediate response to potential faults, ensuring reliable and secure operation.
Our scope of supply
Product: Oil Cooled Power Transformer
Rated Power: Up to 50000 KVA
Primary Voltage: Up to 110 KV
Technical Specification
50000 KVA step down power transformer 110 KV To 11 KV specification and data sheet
| Model | SFZ11-6300-63000/110KV |
| Type | Oil Immersed Power Transformer |
| Standard | IEC60076 |
| Rated Power | 50000 KVA |
| Frequency | 50 HZ |
| Phase | Three |
| Cooling Type | ONAN |
| Primary Voltage | 110 KV |
| Secondary Voltage | 11 KV |
| Winding Material | Copper |
| Vector Group | YNd11 |
| No load Current | 0.58% |
| Tap Changer | OLTC |
| Short-circuit Impedance | 10.50% |
| No Load Loss | 38.2 KW |
| On Load Loss | 184.3 KW |
| Accessories | Standard Configuration |
| Remarks | N/A |
General arrangement drawing
50000 KVA power transformer weight and dimension details, contact us for more info.
Transformer Manufacturing
The core of the 50000 KVA power transformer is fabricated from top-quality grain-oriented cold-rolled silicon steel sheets, which are precisely cut by advanced shearing lines to keep the burrs within 0.02mm, minimizing magnetic flux leakage and enhancing overall efficiency. Its winding utilizes high-grade oxygen-free copper, renowned for superior electrical conductivity and thermal stability, ensuring low resistance and reliable heavy-load performance. Throughout the manufacturing process of each 50000 KVA oil cooled power transformer, an extremely stringent quality control system is implemented, with every component and production phase undergoing thorough inspection and testing to guarantee that the final product adheres to the highest industry standards for performance, safety, and durability.
Testing
The tests we conduct are:
Power factor of windings and bushings
Excitation current
Noise level (optional)
Pressure drop and spray impedance
Application potential
Induced potential
Phase relationship and polarity
Transformation ratio
Insulation resistance
Winding resistance
Warm-up (optional)
Frequency response analysis (SFRA)
Power factor test (M4000 Insulation Analyzer)
Phase angle measurement
We also conduct the following laboratory tests on the insulating oil:
Physicochemical analysis
Gas chromatography
PCB content (KIT method and chromatography)
Furan content
Power factor of the oil
Finished Liquid Dielectric Power Transformer
Installation Commissioning and Operation
The Advantages of Oil Immersed Power Voltage Transformer
Its oil-immersed construction of the 50000 KVA step down power transformer 110 KV To 11 KV ensures thermal stability and electrical insulation, while core-and-coil design minimizes energy loss. This liquid dielectric power transformer's robust build includes advanced cooling systems and protective features like bushings and tap changers for voltage regulation. Compliant with international safety standards, it enhances grid reliability by reducing transmission losses and overvoltage risks. Ideal for substations, it plays a pivotal role in balancing supply and demand in high-demand areas, ensuring stable, cost-effective power distribution.
FAQ
Q: What are your major products?
A: Our core offerings include oil-immersed transformers, dry-type transformers, transformer substations, and high and low voltage switchgear.
Q: Can your products be customized?
A: Absolutely. Given the diverse requirements for voltage, frequency, and other specifications across different countries and regions, we can tailor our products to meet your specific needs.
Q: How soon can I expect a price quote?
A: Typically, we provide quotes within 24 hours of receiving your inquiry.
Q: What's the lead time and shipping duration?
A: The lead time varies based on order quantity. Generally, we can deliver within 15 days after receiving the advance payment. As for shipping, it depends on the destination.
Q: How much does shipping cost?
A: Shipping fees vary according to the port of delivery. We can provide a detailed estimate once the destination is confirmed.
Q: Do your products come with a warranty?
A: Yes, all our transformers come with a minimum one-year warranty to ensure reliability and peace of mind.
Q: What sets your company apart?
Our key advantages lie in 18 years of experience in the power and distribution transformers industry. We are equipped with state-of-the-art production facilities, ensure consistent product quality, offer rapid delivery, and provide professional and responsive service. Additionally, we offer complimentary spare parts to support your long-term operations.
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