Varnish Impregnated Ventilated Dry-type Transformers
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dry type transformers
Features of the products:
Compact size and light weight:
The relative medium constant of NOMEX paper is 2 which is very close to the air. So, the adopting of NOMEX paper can avoid electric field concentrated, decrease the partial discharge.
Strong overload capability:
NOMEX paper belongs to class C insulation material whose heatproof temperature is 2200. Its degraded to use as class H (1800C) material will ensure the over-load capability of the transformer.
Safe and environmental-friendly:
Flame-proof, explosion-proof, and no pollution.
Can be recycled conveniently when transformer life ending after 30 years use.
Power capacity: 30~4000kVA
1) Rated High voltage: 11(10.5, 10, 6.0, 6.3) kV, Rated low voltage: 0.4(0.38, 0.69) kV
2) Rated High voltage: 20kV, Rated low voltage: 11(10.5, 10, 6.0, 6.3) kV, 0.4(0.38, 0.69) kV
3) Rated High voltage: 33(35) kV, Rated low voltage: 20kV, 11(10.5, 10, 6.0, 6.3) kV, 0.4(0.38, 0.69) kV
Tapping range: 15% or 12x2.5%
Type of voltage regulation: off-circuit
Frequency: 50Hz (60Hz)
Phases: 3 or single
Connection symbol: Yyn0, Dyn11
Cooling method: AN or AF
Insulation class: F-H
Insulation level: 10kv LI75AC35/AC3; 35kv LI170AC70/AC3
Power plants, hospitals, residential areas, airports, railways, plants, shopping malls etc.
Note: For detailed specifications, pls feel free to contact us. We will be at your service.