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Is specialized in designing, manufacturing for power transformers ,furnace transformers and reactor.

120000kVA Three Phase Oil Power Transformer Distribution Transformers on Load Tap Changer 1
120000kVA Three Phase Oil Power Transformer Distribution Transformers on Load Tap Changer 2
120000kVA Three Phase Oil Power Transformer Distribution Transformers on Load Tap Changer 3
120000kVA Three Phase Oil Power Transformer Distribution Transformers on Load Tap Changer 1
120000kVA Three Phase Oil Power Transformer Distribution Transformers on Load Tap Changer 2
120000kVA Three Phase Oil Power Transformer Distribution Transformers on Load Tap Changer 3

120000kVA Three Phase Oil Power Transformer Distribution Transformers on Load Tap Changer

Power Transformer 230-242kV on-load-tap-changing power transformer is made of high-quality silicon-steel sheets, and laminated by steps. It is advantageous in low loss, low noise, low voltage partial discharge and high anti short-circuit capacity. The dynamical and thermal stability of this transformer, of which the coils are winded by high-quality oxygen-free copper wire as well as used pre-compressing brackets processes and interior and exterior structure.

 

The transformer tank used wave form shell, has very nice appearance, the core is with D shape yoke and 45 angle seaming. The core and oil box are well fixed and well protected on moving. Three-phase dual winding oil immersed power transformer with OLTC.

 

Model NO.: SFZ 120000/230/35KV

Cooling Method: Oil-immersed Type Transformer

Winding Type: Two-winding Transformer

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    BASIC INFO.

    Model NO. SFZ 120000/230/35KV Test Certification Kema Transformer Test
    Cooling Method Oil-immersed Type Transformer Transport Package Wooden Cases
    Winding Type Two-winding Transformer Specification IEC Standard
    Certification ISO9001-2000 Trademark Ville
    Usage Power Transformer Origin Ningbo
    Frequency Characteristics Power Frequency HS Code 8504231200
    Shape of Core Ring Production Capacity 1/6monthes
    Brand Ville    

    Insulation Level

    Field strength between transformer winding turns is no more than 2kV/mm                   
    Transformer loss (under 75) no-load current and efficiency                                                             
    No-load Loss: 92 kW              According to IEC standard
    Load Loss: 356 kW                According to IEC standard                                     
    No-load current: 0.3 %          According to IEC standard                                                                          
    Radio interference and corona
    Under the Maximum phrase voltage, corona is not visible from outgoing terminal in the night of clear day at outdoor. Radio interference
    voltage is no more than 2500Uv                                                              
    Overloading capability 

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    TECHNICAL PARAMETERS

    Type  SFZ-120000/230 Rated frequency  50 Hz
    Rated voltage  230/34 kV Connection  Ynyn0(d11)
    Rated capacity  100000/120000kVA Voltage regulating method  Neutral point on-load Regulating
    Rated voltage ratio  230± 8× 1.25%/34kV Short circuit impedance  9.5%(10MVA)
    Rated current  301/2038A Cooling mode  ONAN/ONAF
    Phase number  Three    
    Description: Lightning impulse withstand voltage(kV peak value) 1minMain frequency withstand voltage
    (kV RMS)
    Full wave Chopped wave
    High voltage side 1050 1175 460
    Neutral point of high voltage   (1050)     ( 460 )
    Low voltage side 170 185 70
    Neutral point of low voltage 170   70

    Short-time overloading capability of transformer and overload running time are as follow:

    Over current 30 45 60 75 100
    Allowable running time min 120 80 45 20 10
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    We Welcome Custom Designs And Ideas And Is Able To Cater To The Specific Requirements. For More Information, Please Visit The Website Or Contact Us Directly With Questions Or Inquiries.
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