20 kV Series Distribution Transformers
25 kVA 20/0.4 kV Aluminium Winding Standard Losses Transformer
25 kVA 20/0.4 kV Aluminium Winding Standard Losses Transformer
We generally manufacture distribution transformers in this power range, mainly in two different types:
- Transformer with conservator tank (WCT),
- Hermetically sealed type (HST),
Below table will help to engineers to select the best option according to environmental conditions which transformer works in:
| High Environmental Temperature | High Altitude | Rural Network | High Humidity | Over Load Conditions | Unstable Loading | |
|---|---|---|---|---|---|---|
| WCT | ⇑ | ⇑ | ⇓ | ⇓ | ⇑ | ⇑ |
| HST | ⇓ | ⇓ | ⇑ | ⇑ | ⇓ | ⇓ |
Meanwhile here is the advantage-disadvantage of the WCT-HST types:
- In HST type, tank pressure is more than WCT type. WCT type generally works under low pressure due to its open to atmosphere,
- In HST type, cooling/insulation oil does not contact to the air (theoretically). Therefore oil maintenance period is longer than WCT type,
- HST type transformers and their related parts generally work under higher temperature (If we evaluate WCT-HST work under same conditions).
Frequency
| 50 Hz |
| 60 Hz |
Rated Power
| 25 kVA |
Type
| Indoor/Outdoor |
Connection Group
| Yzn11 |
Primary Voltage
| 20 kV |
Standard
| IEC 60076 |
Secondary Voltage
| 400 V |
| 415 V |
| 420 V |
| 480 V |
HV/LV Winding Material
| Aluminum/Aluminum |
Cooling
| ONAN |
Core Type
| Core |
HV Bushing
| 20 kV 250 Amp. 480 mm Crepage |
Number of Phases
| 3 (Three) |
LV Bushing
| 250 Amp. 80 mm. Creepage |
Number of Taps
| 5 |
Tap Changer Range
| ±2 x 2.5% |
| Dimension (L x W x H) | 1500 x 200 x 100 Millimetre |
| Weight | 1500 Kilogram |
About us
Datsan Transformer has been established in 1992 and its one of the transformer manufacturer in Turkey. It has finished dozens of project successfully till 2006 and started to manufacture distribution transformers in 2006.
Datsan has manufactured over 10 thousand of distribution transformers till today and exported to more than 40 countries.
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Contact to us
Datsan Elk.İnş.San.ve Tic.Ltd.Şti.
Adr: Kızıltepe Mardin Karayolu 6.km
Kızıltepe, 47400 Mardin TURKEY
T : +90 (482) 215 3188
F : +90 (482) 215 1199
