220kv Power Transmission/Distribution Transformer Low Noise Oil Immersed Power Transformer

Product Description:

220kv-230kv Low Noise Power Transformer

1. Product standards

    >>GB1094.1 ~ 2-1996.

    >>GB1094.3, 5-1985.

    >>GB/T6451-1995.

    >>IEC76.

2. Low loss

    – Optimization of electromagnetic calculations, using combined technology of electrical shielding and 

      magnetic circuit, effectively controlled leakage, so as to reduce the load loss and to avoid partial  

      overheating.

    – Use high quality cold-rolled lattice orientation high permeability silicon steel, to reduce the load loss, 

      no-load current.

    – Core all-helical stacking with STEP joints, and advanced stacking process, reduced the load loss, load   

      current and electromagnetic noise.

3. Low partial discharge  

    To ensure the safe and steady operation of the transformer under continuous rated voltage, our Electric Power

    Research Institute conducted a lot of research to develop a more reasonable insulation structure, plus the strit

    technology specifications and technical staff experience, ensured the low partial discharge of our products.

4. High strength

    – Adoption of six-side method positioning for the body, meets the transportation requirements of, horizontal 

      acceleration not more than 0.3G, vertical direction not greater than 0.15g.

    – Upper and Lower Clamps and the formation of tight fixed side beam frame.

    – The tank can withstand the vacuum test and required positive pressure test.

5. Low Noise

    – Use of high-quality core silicon steel;

    – Core STEP stepping joints;

    – Reduction of the flux density, despite of the increase of cost;

    – Use low-noise fan as the air cooling equipment;

    – Increase the shock absorbing measures;

    – Well interior-protection, to avoid direct rigid contact of the body and tank;

6. Maintenance-free

    Our company adopts the domestic leading technology, use fully enclosed structure for the transformer tank, 

    ensuring product life of 30 years, and maintenance-free operation.

****For detailed technical specifications, please contact us.

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Order Instructions

When you choose our company product, please offer following data:

Transformer model:                     

Rated capacity:                     kVA

Phase       :    Three-phase

Single-phase

Frequency   :     50HZ

 60HZ

Rated voltage ( H.V. / L.V. ):                

Tapping range: ±       ×       %

Insulation level: LI       AC       / LI       AC        kv

Veotor group:  Dyn11

             Yyno

             Other

Short-circuit Impedance:        %

Cooling method:  ONAN

                ONAF

Tapping method:  OLTC

                OCTC

                Other

Other requirement:                                            

Notes:

We also can design special products according to customer’s particular requirements.

The final dimension is subject to outline drawing.
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