• 110kV Class oil-immersed transformer
  • 110kV Class oil-immersed transformer
  • 110kV Class oil-immersed transformer
110kV Class oil-immersed transformer
discuss personally
Model
SFSZ-90000/121
SFSZ-90000/110
SFSZ-63000/121
SFSZ-63000/110
SFSZ-50000/121
SFSZ-50000/110
SFSZ-40000/121
SFSZ-40000/110
SFSZ-31500/121
SFSZ-31500/110
SFSZ-25000/121
SFSZ-25000/110
SFSZ-16000/121
SFSZ-16000/110
SFSZ-12500/121
SFSZ-12500/110
SFSZ-10000/121
SFSZ-10000/110
SFSZ-8000/110
SFSZ-8000/121
SFSZ-6300/121
SFSZ-6300/110
SFS10-90000/121
SF10-90000/121
SFS10-90000/110
SF10-90000/110
SFS10-50==63000/121
SF10-63000/121
SFS10-63000/110
SF10-63000/110
SFS10-50000/121
SF10-50000/121
SFS10-50000/110
SF10-50000/110
SFS10-40000/121
SF10-40000/121
SFS10-40000/110
SF10-40000/110
SFS10-31500/121
SF10-31500/121
SFS10-31500/110
SF10-31500/110
SFS10-25000/121
SF10-25000/121
SFS10-25000/110
SF10-25000/110
SFS10-20000/121
SF10-20000/121
SFS10-20000/110
SF10-20000/110
SFS10-16000/121
SF10-16000/121
SFS10-16000/110
SF10-16000/110
SFS10-12500/121
SF10-12500/121
SFS10-12500/110
SF10-12500/110
SFS10-10000/121
SF10-10000/121
SFS10-10000/110
SF10-10000/110
SFS10-8000/121
SF10-8000/121
SFS10-6300/110
SF10-8000/110
SFS10-6300/121
SF10-6300/121
SFS10-6300/110
SF10-6300/110
Basic info
Brand ROCKWILL
Model NO. 110kV Class oil-immersed transformer
Rated capacity 90000kVA
Primary voltage 121kV
Secondary voltage 6.3kV
Methods of regulation On Load Voltage Regulating
Winding type Three Winding
Series SF/SFS Series
Product Detail

Overview

Premium Durability: Superior insulation and mechanical resilience allow for extended system life and overall system reliability.reducing the frequency of outages. 

Certified Quality: Oil-immersed power transformers are manufactured, tested and delivered in our accordance with all applicable standards (ANSI, IEEE) maintaining US compliance which simplifies service and retrofitting.

Energy Efficient: Designed to accommodate heavier base loading for extended periods of time with low energy loss and minimal partial discharge for optimized energy savings.

 

Operating condition

1.working temperature:-30℃~40℃

2.Relative humidity: ≤90% (25℃) 

3.No corrosive gas, no obvious dirt, etc.

4.Altitude: ≤1000m

 

Applications:

The 110kV power transformers that are primarily used in high-voltage transmission and substation applications to step up or step down voltage for efficient power distribution. Common applications include utility grid substations, large industrial plants, renewable energy integration (wind and solar farms), and heavy infrastructure projects.


If you need to know about more parameters , Please check the model selection manual.↓

Know your supplier
ROCKWILL
Rockwill Electric Group Global Manufacturer of High voltage and medium-voltage power equipment and smart grid solutions. Headquartered in Wenzhou, China. Serving 100+ countries with quality, innovation, and trust. What We Offer: • HV-MV switchgear (VCB, SF₆ circuit breakers, RMU, GIS) • Distribution transformers and substations • Smart grid and monitoring systems • Solar, wind, EV charging, and energy storage solutions • EPC turnkey power projects Certified: ISO 9001 / ISO 14001 / ISO 45001
Main Categories
High Voltage Electrical Apparatus
Business Type
Design/Manufacture/Sales
Highest Annual Export (USD)
$150,000,000
Professional Experience
16 years
Workplace
108000m²m²
占位
占位
Related Products
Related Knowledges
Transformer operation and maintenance
Transformer operation and maintenance
Transformer Operating TemperatureDuring operation, transformers generate copper losses and iron losses, both of which are converted into heat, causing the transformer’s temperature to rise. Most transformers in China use Class A insulation. Due to heat transfer characteristics, significant temperature differences exist between different components during operation: winding temperature is the highest, followed by the core, and then the temperature of the insulating oil (with upper-layer oil being
Encyclopedia
07/31/2025
What Is An Inverter-integrated Transformer?
What Is An Inverter-integrated Transformer?
An inverter-integrated transformer is a power conversion device that combines the functions of an inverter and a transformer into a single unit. Widely utilized in renewable energy systems such as solar photovoltaic (PV) and wind power generation, its primary role is to convert direct current (DC) to alternating current (AC) while adjusting voltage levels (stepping up or down) via the transformer, ensuring compatibility with grid requirements or specific load demands.1. Basic Functions and Opera
Vziman
07/31/2025
Estimation of capacitive current
Estimation of capacitive current
The capacitive current is mainly determined by the length of the feeder, the cross-sectional area of the conductor, the dielectric constant, the height above the ground, and the rated voltage. The specific estimation methods are as follows:Estimation of capacitive current of overhead lines: For overhead lines of 3 - 35 kV, the capacitance per phase to ground is usually 5000 - 6000 pF/km. Based on this, the value of the single-phase grounding capacitive current per kilometer for lines of differen
Leon
07/31/2025
What are the technical characteristics of hydrogen-cooled power transformer technology?
What are the technical characteristics of hydrogen-cooled power transformer technology?
Power transformers are pivotal components in electrical grids, tasked with voltage conversion to enable efficient electricity transmission and distribution. As global energy demands surge and grid architectures grow increasingly complex, there is an urgent need for advanced transformer technologies that enhance efficiency, minimize environmental impact, and ensure operational reliability. Among emerging innovations, hydrogen-cooled power transformer technology has emerged as a particularly promi
Edwiin
07/31/2025
What are the basic knowledge points about transformer bushings?
What are the basic knowledge points about transformer bushings?
1. Functions of Transformer BushingsThe core function of transformer bushings is to lead the coil leads out to the external environment. They serve both as insulating components between the leads and the oil tank and as fixing devices for the leads.During the operation of a transformer, bushings continuously carry load currents and, in the event of an external short circuit, withstand short-circuit currents. Therefore, transformer bushings must meet the following requirements:Possess specified e
Rockwell
07/31/2025
What are the application scenarios of power transformers with a rating above 10kV?
What are the application scenarios of power transformers with a rating above 10kV?
High - voltage power transformers (above 10 kV) are extensively applied in various sectors, spanning residential and industrial fields. The following is a detailed overview of their main application scenarios and technical characteristics:1. Urban and Civil Applications1.1 Residential Communities and Commercial CentersThe 10 kV - rated combination transformer, favored for its compact size and fully sealed structure, is widely used in new residential complexes, shopping centers, and high - rise b
Vziman
07/31/2025
×
Inquiry
Download
IEE-Business is dedicated to serving the personnel in the global power industry.
Join IEE-Business, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!