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Oil immersed transformer

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S11 oil immersed distribution transformer

Author:ZTELEC   Update time:2018-08-16 15:10:25

S11 oil immersed distribution transformer


Brand: ZTELEC
Model: S11-M-2500/10
Rated voltage: 10 (kV)
Rated capacity: 2500 (KVA)
Load loss: 17800 (W)
Impedance voltage: 5.0 (%)
Size: support processing custom


The difference between S11-2500/10 oil-immersed transformer and S11-M-2500/10 distribution transformer is that the transformer structure without "M" is unsealed, and the "M" is sealed. At present, our company produces The 6KV-38.5KV oil-immersed transformers are all sealed transformers.

The difference between a fully sealed oil-immersed transformer and a non-sealed transformer:
The fully sealed oil-immersed power transformer has the advantages of low loss, low noise and high efficiency, and can achieve good energy saving effect and reduce pollution. Compared with ordinary oil-immersed transformers, the fully sealed transformers eliminate the oil storage cabinet. The change of oil volume is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated oil tank. The transformer is insulated from the air to prevent and slow down the deterioration of the oil and the insulation aging. , to enhance operational reliability, maintenance-free maintenance.

S11 oil-immersed distribution transformer factory test:
Winding resistance unbalance rate: ≤ 2% between lines
 Short circuit impedance 4.0±5% (main tap), 4.0±15% (other taps)
Load loss Po≤0.91±15%
No-load loss Pn≤0.13±15%
No-load current Io≤2.0±15%
Winding temperature rise limit K≤65K
Sound power level is less than ≤72dB(A)

ZTELEC oil immersed transformer use conditions:
1. Use altitude: H<1000m
2, the working environment temperature: -25 ° C ~ +40 ° C
3, relative humidity: when the air is at +25 ° C, the relative humidity does not exceed 90%
4, wind speed: <35m / s
5. Earthquake acceleration: The horizontal acceleration is 0.4m/s?
6, the workplace: no fire, explosion hazard, chemical corrosion level severe vibration occasions