S11-M 3 Phase 11kv 200kVA Oil Immersed Power Transformer Distribution Transformer Compact Transformer Electric Transformer

• Customization: Available
• Application: Power, Electronic, Power Transformer
• Phase: Three
• Model NO.: S11-M
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Cnkc
• Rated Frequency: 50/60Hz
• Rated Voltage/Hv: 11/33kv
• Rated Voltage/LV: 400V
• Transformer Capacity: 30-31500kVA
• Connection of Transformer Winding: Yyn0/Dyn11
• Transport Package: Wooden Case
• Specification: 800*660*940mm
• Trademark: CNKC
• Origin: China
• Production Capacity: 1000/Monthly
• Package Size: 1410.00cm * 1035.00cm * 1230.00cm
• Package Gross Weight: 850.000kg

Product Description

Product Description
As it doesn't need oil conservator, the height of transformer is reduced, and as the transformer oil doesn't contract with air, the oil ageing is retarded, thus prolonging the service life of transformer.
This product is widely used in urban power grid reconstruction, residential district, factory, high-rise building, mining factory, hotel, shopping mall, airport, railway, oil field, wharf, highway and other outdoor places.

Model Description


Technical parameters and structure 


Product features 
1. It's an environment-friendly transformer with low no-load loss, no-load current and noise;
2. No oil storage box to save space;
3. Whole sealed with vacuum oil filling, high stability of insulation;
4. Adopts the corrugations on the oil tank as its heat-radiation parts, corrugations can expand or contract accord to the change of oil volume
5. Fully sealed structure, maintenance free;
6. With oil level gauge to ensure the safety running.



Product Standards
1. Production design standards:
JB8749-1998 General technical requirements for voltage regulators
GB1094-2013 Power Transformer
GB/T6451-2008 Three-phase oil-immersed power transformer technical parameters and requirements
GB/T17468-1998 Guidelines for selection of power transformers
GB10230-2007 On-load tap-changer
GB/T1058-1989 Guidelines for the application of on-load tap-changers
DL/T572-2010 Operation Regulations for Power Transformers
2. Acceptance criteria:
The voltage of the SVR line automatic voltage regulator installation point meets the requirements of the national standard GB/T12325-2008 power supply voltage deviation standard: the sum of the absolute value of the positive and negative deviations of the power supply voltage of 35kV and above does not exceed 10% of the rated voltage; 20kV and below three The allowable deviation of the phase power supply voltage is ±7% of the rated voltage; the allowable deviation of the 220V single-phase power supply voltage is +7% and - 10% of the rated voltage.



Environment condition
1.High ambient temperature: +40ºC
2.Low ambient temperature: -25ºC
3.Altitude: <1000m
4.Monthly average relative humidity: 90% (20ºC)
5.Installation location: Install in a place where there is no fire, explosion hazard, serious pollution, chemical corrosion and severe vibration, indoors or outdoors.



Product details


Products real shot


A corner of the production workshop


Product packaging



Product application case