6300kVA~100000kVA Three-winding transformer with OLTC

6300kVA~100000kVA Three-Winding Transformer with OLTC

Power Grid Backbone Solution for Large-Scale Energy Distribution

When your power infrastructure demands reliable multi-voltage conversion at enterprise scale, you need equipment that delivers. Lijie Electric's 6300kVA~100000kVA three-winding transformer with OLTC is engineered for regional hub substations and large energy bases. With capacity ranging from 6,300 to 100,000 kVA and voltage handling up to 220kV, this high-voltage transformer features vacuum on-load tap changing technology for precise voltage regulation without interruption. Our advanced ODAF/ODWF forced cooling system ensures stable operation even at maximum capacity, while maintaining noise levels at ≤75 dB(A). Backed by ISO 9001:2015, CE, and IEC certifications, each unit undergoes rigorous testing at national laboratories.

Why Choose Three-Winding Transformers with OLTC?

Multi-Voltage Level Flexibility

You're overseeing complex control dispersion over distinctive voltage prerequisites. The item tackles this challenge elegantly.

Unlike routine two-winding plans, this setup at the same time handles three voltage levels. Your 220kV input nourishes both 35kV mechanical stop systems and 10kV urban dissemination circuits—all from one compact unit. This dispenses with the require for different transformers and diminishes your substation impression significantly.

Uninterrupted Voltage Regulation

Power quality things to your operations. Our vacuum on-load tap changer (OLTC) on the high-voltage side alters voltage proportions whereas keeping up full stack. No shutdowns, no interferences, no efficiency losses.

Your framework encounters consistent variances. The OLTC reacts in real-time, guaranteeing steady yield voltage indeed when input changes by ±10%. This is basic for delicate mechanical forms and urban control quality benchmarks.

Technical Specifications

Real-World Applications

Regional Hub Substations

Your 220kV substation serves both industrial zones and urban areas. Installing a 6300kVA~100000kVA three-winding transformer with OLTC lets you distribute power to 35kV factory feeders and 10kV city networks simultaneously. The OLTC maintains voltage stability across all output levels, regardless of load variations.

Large Energy Bases

Working a 1,000MW+ control plant makes special challenges. You require to step up generator voltage from 20kV to 220kV for lattice association, whereas too giving 10kV control for assistant frameworks. Our three-winding plan handles both capacities in one unit, streamlining your electrical format and lessening capital costs.

Inter-Regional Network Interconnection

Connecting common control frameworks requires exact voltage coordinating. These transformers empower consistent control trade between 220kV/110kV/35kV frameworks. The OLTC guarantees voltage remains steady at interconnection focuses, indeed amid crest exchange loads.

Ultra-Large Mechanical Complexes

Your steel or chemical office requests 220kV for fundamental generation lines, 35kV for assistant workshops, and 10kV for workplaces. One three-winding transformer replaces three isolated units, lessening upkeep necessities and making strides reliability.

Manufacturing Excellence Behind Every Unit

At Lijie Electric, we work two generation bases crossing 500,000 square meters in Xuzhou and Nantong. Our group incorporates over 160 engineers with progressed degrees, guaranteeing each transformer meets exacting quality standards.

Each unit experiences testing at the National Transformer Quality Supervision and Assessment Center and Wuhan Tall Voltage Investigate Established. This confirmation handle affirms execution beneath real-world conditions some time recently shipment.

Our generation adaptability implies you get transformers designed absolutely for your application. Whether you require custom impedance values, extraordinary cooling prerequisites, or one of a kind voltage proportions, we provide inside 6–30 days.

Frequently Asked Questions

Q: What's the advantage of three windings over two-winding transformers?

A: Three-winding plans handle numerous voltage levels at the same time. You decrease hardware number, spare substation space, and lower add up to proprietorship costs. For complex conveyance systems, this setup is essentially more efficient.

Q: How does the OLTC move forward network stability?

A: The on-load tap changer alters voltage proportions without hindering control stream. When your input voltage changes due to network conditions, the OLTC compensates naturally. This keeps up reliable yield voltage for your downstream gear.

Q: Can you customize the voltage ratios for specific applications?

A: Completely. We arrange HV, MV, and LV windings to coordinate your correct necessities. Common setups incorporate 220kV/35kV/10kV and 110kV/35kV/10kV, but we suit other combinations based on your needs.

Q: What cooling strategies do you prescribe for most extreme capacity units?

A: For units over 40,000 kVA, we regularly prescribe ODAF (oil-directed air-forced) cooling. This framework employs pumps and fans for proficient warm dissemination, guaranteeing steady operation indeed at full stack in tall surrounding temperatures.

Q: How long is the ordinary generation lead time?

A: Standard setups dispatch inside 6–15 days. Custom-engineered units require 20–30 days depending on details. We give nitty gritty generation plans after arrange confirmation.

Q: What universal benchmarks do your transformers meet?

A: Our products comply with IEC, ISO 9001:2015, CE, and UL standards. Each unit includes comprehensive test reports, technical drawings, and operation manuals in English.

Ready to Upgrade Your Power Infrastructure?

Get technical specifications and pricing for your 6300kVA~100000kVA Three-winding transformer with OLTC specific voltage and capacity requirements. Contact our engineering team at lijieelectrical@gmail.com today.