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Maintenance Free Hermetically Designed Fully Sealed Transformer for Urban Substation
US$369.00-1,788.00
1 Piece
Product profile
Customization
AvailableApplication
Power, Instrument, Rectifier, Combined Transformer, Power Transformer,Phase
ThreeModel NO.
S22-MCore
Core-type TransformerCooling Method
Oil-immersed Type TransformerWinding Type
Multi-winding TransformerCertification
ISO9001-2000, ISO9001, CCC, CEUsage
Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Three Phase TransformerFrequency Characteristics
Power FrequencyShape of Core
RingBrand
TenronyRated Frequency
50/60HzRated Voltage/Hv
11/33kvRated Voltage/LV
400VTransformer Capacity
30-31500kVAConnection of Transformer Winding
Yyn0/Dyn11Winding
CopperTransport Package
Wooden CaseSpecification
800*660*940mmTrademark
TENRONYOrigin
ChinaHS Code
8504109000Production Capacity
200/MonthlyKey features
Forced Air Cooling System: ONAF cooling increases heat dissipation by 30-50% with intelligent fan control.
High Overload Capacity: Handles 120% normal load continuously and 150% emergency load for short durations.
Extended Service Life: Sealed oil system and insulation materials ensure service life of 30+ years.
Low Noise Operation: Equipped with low-noise axial fans, maintaining noise levels below 65 dB.
Customizable Specifications: Offers customization for rated frequency, voltage, capacity, and winding connections.
Robust Safety Protection: Includes Buchholz relay, pressure relief valve, and real-time temperature monitoring.
High Efficiency Design: Double dissipation efficiency compared to conventional oil-immersed transformers.
Versatile Applications: Ideal for urban substations, industrial parks, and renewable energy integration.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.19h
About Our Factory & Business Background
AddressNo. 788 Wenyi Road, Bihu Industrial Park, Liandu District, Lishui, Zhejiang, China
Plant Area50369.12 square meters
Number of Employees167
Registered Capital107,580,000 RMB
Terms of PaymentT/T
International Commercial Terms(Incoterms)FOB, CIF
Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays
Minimum Order Quantity1
Supply Chain Partners80
Our Production Capability & Technical Expertise
Main ProductsTransformer Switchgear Substation
Production Lines2
Production MachinesPunching machine, Laser cutting machine, CNC bending machine, Winding machine, Drying machine
QA/QC inspectors3 people
Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)
Inspection Method for Finished ProductsFinished product checked by packing staff
R&D Engineers7 people
Traceability of Raw MaterialsYes
Our Industry Experience & Global Business Record
Year of Establishment2003-12-05
Main MarketsDomestic
Repeat Buyers Choice30%~50%
Number of Foreign Trading Staff1
Overseas Agent/BranchYes
New Products Launched in Last yearYes
Our Certifications, Standards & Industry Recognition
Management System CertificationISO9001:2015, ISO14001, ISO45001:2018
Product CertificationCE
Cooperated with Fortune 500No
Product Q&A
Q:What is the cooling method of the SF20 series transformer?
A:
The SF20 series uses an ONAF (Oil Natural Air Forced) cooling method with forced air cooling, which significantly improves heat dissipation efficiency compared to standard oil-immersed transformers.
Q:Can the transformer handle overload conditions?
A:
Yes, it supports 120% rated load continuously with fans at full speed and can handle 150% rated load for short emergency durations, ensuring dispatch response time.
Q:What is the expected service life of this transformer?
A:
The transformer is designed for a service life of 30 years or more, thanks to its sealed oil system and high-quality insulation materials that resist moisture and oxidation.
Q:Is customization available for this product?
A:
Yes, customization is available for rated frequency (50/60Hz), rated voltage, transformer capacity (30-31500kVA), winding connections, and other parameters based on samples or designs.
Q:What safety protections are included?
A:
It features a Buchholz relay for gas accumulation alarms, a pressure relief valve to prevent tank overpressure, an oil level gauge, and an intelligent temperature controller.
Send Inquiry
*To:
Zhejiang Tianrun Electric Co., Ltd.
Zhejiang Tianrun Electric Co., Ltd.*Content:
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