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Amorphous Distribution Transformer
This kind of transformer can take replace of silicon steel iron-core transformer and widely used in the outdoor distribution system. As the transformer adopt for the city and rural distribution network. It's iron-core is amorphous strip material, the no-load loss is 75% less than S9 transformer and the LV winding is copper winding, which would increase the short-circuit bearing ability. The vectory group is Dyn11, which would reduce the effect to the harmonic wave and improve the power supply quality. Before shipment every transformer have done full-wave lightning impulse test at a voltage 25% higher than national standard to insure the transformer in motion safely.
As amorphous Distribution transformer can't bear mechanical force, and rectangle winding's mechanical intensity is week, it is a big difficulty for amorphous distribution transformer pass the short-circuit test, our company has captured this difficulty, exploited SBH16-M-2500/10 distribution transformer, it has passed the short-circuit test in ShenYang National Transformer Quality Supervision Testing Center. It demonstrates that our company's amorphous distribution design has came to the international advanced level.
Functional characteristics
Vecor Group: Dyn11
Impedance Voltage (%): 4%, 4.5%, 5%
Rated voltage: H. V: 11, 10.5, 10, 6.3, 6KV (Or as customer requirement)
L. V.: 0.4 KV (Or as customer requirement)
Tapping range: +/- 2 * 2.5%, +3*2.5%, -1*2.55(Or as customer requirement)
Frequency: 50Hz
Number of phases: 3
Cooling method: ONAN or ONFN
Standards: GB1094 Power transformer
JB/T10318-2002 Technical data & requirement of amorphous alloy oil immersed distribution transformer
IEC60076 Power transformer
Service conditions
The height above the sea level is below 1000m
Ambient temperature
Highest air temperature +40
Highest daily average air temperature +30
Highest annual average air temperature+20
Lowest outdoor air temperature -25
Scope of application
Suitable for outdoor city and rural distribution network
| Max voltage effective value | Voltage |
Rate Shortcircuit Frequency withstand voltage virtual value |
Rated Thunder and Lightning Impulse Withstand Voltage Peak P value |
|
≤1.1 6.9 11.5 23 |
≤1 6 10 20 |
5 25 35 55 |
… 75 95 125 |
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