HENGFENGYOU ELECTRIC --SMART ELECTRIC GLOBAL SERVICE PROVIDER
Manufacturer
HENGFENGYOU ELECTRIC
Standard on which performance data is based
IEC 60076,GB 1094-1996,GB/ T6451-2008,GB/T 7597-2007,GOST,SABS,CE,IEC,IEEE/ANSI
Type
OIL IMMERSED
Method of Cooling
ONAN, ONAF, OFAF, OFWF, ODAF, ODWF
Rated Power
160mva
Voltage Ratio
220kv/6.3kv 220kv/6.6 kv 220kv/10.5kv 220kv/11kv
Frequency
50/60HZ
Tap Changer
OCTC/OLTC
HV·Tapping
±3×1.5%,±5×1.5%,±8×1.25%,±8×1.75%
Vector Group
YNd11,YnYn0D11
Core Material
CRGO
Winding Material
Copper
No Load Losses (GB/T S13 series)
425kw
Load Losses (GB/T S13 series)
94kw
Dimensions of Transformer
7000mm*3000mm*4000mm
Our 160 MVA-220 kV transformer series is designed and manufactured in full compliance with major international standards, ensuring global applicability and superior performance.
1. Compliance Standards
Chinese Standards:GB/T (Mandatory National Standards)
International Standards:IEC 60076 Series
European Standards: EN 60076 Series
North American Standards: ANSI/IEEE C57.12.00 & C57.92.00
Commonwealth Standards:GOST Standards
Customization Available for other regional standards including BS (UK), NF (France), and VDE (Germany)
2. Certification Portfolio
Quality Management: ISO 9001
Environmental Management: ISO 14001
European Market: CE Marking (LVD & EMD Directives)
International: IEC Certification
Southern Africa: SABS Certification
North America: cULus Certification (CSA Standards)
Eurasian Region: EAC Certification
Kenya: PVoC Certification
3. Operational Efficiency
Typical efficiency exceeds 99.7%
Meets EU Ecodesign Regulation (EU) 2019/1783 Tier 2 requirements
Superior energy performance throughout load range
4. Maintenance-Free Design
IP65 protection rating for complete dust ingress protection and water jet resistance
25+ years design life based on rigorous thermal aging models
Robust construction for harsh outdoor environments
5. Eco-Friendly Options
FR3 natural ester fluid available (soybean-based)
Fire safety class K3 (360°C flash point)
Biodegradable and non-toxic
Extends solid insulation life
6. Overload Capacity
150% rated capacity for up to 2 hours
Full copper winding design
Requires integrated oil temperature monitoring system
Optimized cooling for safe overload operation
All transformers undergo comprehensive routine and type tests according to applicable standards, ensuring reliable performance in diverse operating conditions worldwide.
As an industry-leading manufacturer, HENGFENGYOU ELECTRIC provides competitive pricing for 250MVA-220kV power transformers while maintaining exceptional quality. Final quotations are determined based on technical parameters, configuration requirements, and order quantity. Submit your detailed requirements to receive a customized quote within 24 hours from our technical team.
Hengfengyou: Your Trusted Partner in Power
For decades, our drive for innovation has delivered proven value across the globe. Partners in over 50 countries trust us to provide not just equipment, but reliable solutions and a commitment to their long-term success. Our philosophy is simple: Build with Quality, Support with Service, and Grow Together.
Q1: What are the main applications of this 220kv transformer?
It is primarily used in national power grids, regional hub substations, large power plant step-up stations, and high-consumption industrial parks, serving as a core component for high-voltage power transmission and distribution.
Q2: What is the standard delivery time?
The standard delivery time is 2-3 months, covering the entire process from design and procurement to manufacturing and testing. Expedited solutions are available based on project requirements.
Q3: Why is on-load tap changing mandatory for 220kV class?
As 220kV is a backbone grid voltage, on-load tap changing enables voltage regulation without power interruption, ensuring grid stability - a key distinction from lower-voltage transformers.
Q4: What are the special requirements for transportation and installation?
The unit is an oversized cargo requiring pre-transport route surveys and bridge assessments. Installation requires specialized vacuum oil filling equipment and large crane machinery, with strict requirements for foundation leveling.
Q5: Which international standards are complied with?
Our products fully comply with IEC, IEEE, GB,ANSI/IEEE EN/NF and other international standards, and can be adapted to meet specific regional standards upon request.
Q6: What are the features of the recommended monitoring system?
Standard features include online DGA monitoring and partial discharge monitoring systems, enabling real-time condition diagnosis and predictive maintenance.
Q7: What cooling technologies are used?
Multiple cooling solutions are available including ONAF, OFAF/ODAF and OFWF, with OFAF/ODAF being the common configuration for effective hotspot temperature control.
Q8: How is the short-circuit withstand capability ensured?
Utilizing high-strength winding compression structures and self-bonding transposed conductors, verified through rigorous short-circuit calculations and tests to withstand high fault currents in 220kV networks.
Q9: How are special environmental conditions addressed?
Customized designs are available for high altitude, coastal corrosive environments, high seismic zones, featuring C4/C5-M anti-corrosion coatings and seismic reinforcements.
Q10: What after-sales services are provided?
We offer comprehensive services including installation guidance, technical training, spare parts supply, and remote technical support to ensure reliable operation throughout the equipment's lifecycle.
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