Description

Description of 110kV Class Three Phase Power Transformer

As a leading provider of power transmission equipment, our 110kV Class Three Phase Power Transformer lineup—specifically the three-winding, on-load tap-changer (OLTC) oil-immersed models—has been fully standardized as core configurations for industrial and grid applications. We’ve refined these transformers to meet the strictest operational demands, while also launching advanced new variants that redefine efficiency and reliability in the 110kV segment.

Core Advantages: The “1-Free, 2-High, 4-Low” Innovation

Our latest 110kV Class Three Phase Power Transformers integrate cutting-edge design features tailored to reduce maintenance burdens and boost long-term performance. These advantages are encapsulated in our “1-Free, 2-High, 4-Low” value proposition:

1-Free: Maintenance-free operation (minimizes downtime and operational costs)
2-High: High reliability (stable performance under fluctuating loads) & High impedance (enhanced fault tolerance for grid safety)
4-Low: Low power loss (reduces energy waste), Low noise (complies with environmental standards), Low temperature rise (extends lifespan), and Low partial discharge (PD) (ensures insulation integrity).

Complemented by a self-cooling structure, these transformers excel in both indoor and outdoor installations, making them ideal for power substations, industrial parks, and large-scale energy projects.

Industry-Leading Technical Milestones

Our commitment to quality has positioned our 110kV Class Three Phase Power Transformers at the forefront of China’s 110kV-grade equipment sector. A key testament to this is our track record of pioneering compliance with rigorous industry tests:

In 1997, our model SFZ-31500/100 became one of the first 110kV transformers in China to successfully pass the mandatory short-circuit test.
In 2000, we repeated this achievement with the SZ10-M-50000/100 model, further validating our technical prowess.

These milestones ensure that every 110kV Class Three Phase Power Transformer we deliver meets or exceeds national standards, delivering consistent, advanced performance for decades.

Why Choose Our 110kV Class Three Phase Power Transformer?

Whether you need a standardized solution or a custom-tailored model, our transformers balance durability, efficiency, and cost-effectiveness. Designed for seamless integration into modern power grids, they support stable energy transmission, reduce operational overheads, and align with global sustainability goals.

High efficiency to reduce energy losses during transmission
Flexible voltage adjustment via OLTC for adaptive grid management
Durable oil-filled design for low maintenance and extended service life
Compliance with global standards for seamless integration into existing networks

For reliable, high-performance 110kV Class Three Phase Power Transformers, partner with a leader in power equipment innovation—contact us today to discuss your project needs!

Parameter of 110kV Class Three Phase Power Transformer

Rated Power (kVA)	High Voltage	Middle Voltage	Low Voltage	Connection symbol	Loss(W)		No load current (%)
Rated Power (kVA)	High Voltage	Middle Voltage	Low Voltage	Connection symbol	No-load loss	On-load loss	No load current (%)
6300kVA	110 KV 121 KV 138 kV	35 kV 37 kV 38.5 kV	6.3 KV 6.6 KV 10 KV 10.5 KV 11 KV	YNyn0d11	1200 W	47000 W	0.95
8000kVA					14400 W	56000 W	0.95
1000kVA					17100 W	66000 W	0.89
12500kVA					20200 W	78000 W	0.89
16000kVA					24200 W	95000 W	0.84
20000kVA					28600 W	112000 W	0.84
25000kVA					33800 W	133000 W	0.78
31500kVA					40200 W	157000 W	0.78
40000kVA					48200 W	189000 W	0.73
50000kVA					56900 W	225000 W	0.73
63000kVA					67700 W	270000 W	0.67

Test of 110kV Class Three Phase Power Transformer

Reliability starts with quality— and our 110kv Class Three Phase Power Transformer is built with premium materials and components, then validated through a comprehensive suite of industry-standard tests. Every unit undergoes:

Partial Discharge Test (to detect internal insulation defects)
Impulse Test (to withstand voltage spikes from lightning or switching)
AC Withstand Voltage Test (to verify insulation integrity under AC stress)
Induced Voltage Withstand Test (to simulate real-world operating conditions)
Oil Breakdown Voltage Test (to ensure insulating oil meets safety thresholds)
Temperature Rise Test (to confirm thermal performance under full load)
Insulation Resistance Test (to measure insulation effectiveness)

All test results meet or exceed national and international standards (including IEC, ANSI, and local grid regulations), guaranteeing that the transformer delivers safe, efficient, and long-lasting performance.