Dry Transformer
USD $256 - $256 /Piece
Min.Order:1 Piece
Wenzhou Wosn Electron Technology Co., Ltd.
Specifications
1. SG series three phase dry type transformer adopts high quality material and advanced technology, it has advantages of fireproofing, damp – proof, safety, save electrical energy and convenient maintenance.
2. It can be applied to such power transmission and distribution places like underground railway , high building, airport, station, wharf, enterprise, tunnel, etc.
3. It is mainly used in power supply occasions of AC 50~60Hz and voltage less than 500V. All the input and output voltage , connection group and capacity of tapped winding can be designed and produced according to users’ requirements.
4. Single phase and three phase are avaliable.
Technique Specification
Product performance
Position of transformer | Temp. rise limit(K) | Meas. methods | Item | Allowable deviation%) | ||
Coil | B | 80 | Electri-resistivity | No-load loss | +15 | |
F | 100 | Load loss | +15 | |||
Iron core and structural part surface | Less than the maximum allowable temperature rise of insulating material | Surface Thermomeer/ Thermocouple method | Overall loss | +10 | ||
Insulation level: The transformer can withsand 2000V power frequency test voltage, lasting I min without breakdown, no flashover. Multiplier times the pressure continued to 1 min. Transformer performance to allow the deviation does not exceed the provisions of the following table. | No-load current | +30 | ||||
Impedance voltage | 10 | |||||
Voltage ratio | 0.5 | |||||
DC resistance unbalance ratio | Line | 2 | ||||
Phase | 4 |