DG JMB BJZ DG Series Single, The three-phase isolation transformer is a new generation of energy-saving power transformer developed and produced by Nanbian Electric with reference to similar international products and combined with China’s national conditions, from 100VA to 1000KVA, in line with IEC439, GB5226 and other international and national standards, and the winding adopts the whole column winding method; The transformer is vacuum-impregnated, so that the insulation grade of the transformer reaches F or H, and the product performance reaches the advanced level at home and abroad. Transformer series single-phase, three-phase dry-type isolation transformers are widely used in AC 50Hz to 60Hz, voltage below 660V circuits, widely used in imported important equipment, precision machine tools, mechanical and electronic equipment, medical equipment, rectifier devices, lighting factories; Industrial and mining enterprises, stations, docks, airports, etc. The various input and output voltages of the product, the connection group, the number and position of the adjustment tap (generally ±5%), the distribution of winding capacity, the equipment of secondary single-phase winding, the use of rectifier circuit, whether it requires a shell, etc., can be carefully designed and manufactured according to the requirements of users.

Technical Indicators

1. Input rated voltage: three-phase 380V or single-phase 380V or single-phase 220V

2 Output voltage: (according to customer’s requirements)

3. Working frequency: 50Hz-60Hz

4 Efficiency: ≥95%

5. Temperature rise: <60

6 Waveform Distortion: <0.1%

7. High voltage test: 2500V, no breakdown for 1 minute

8. Insulation resistance: winding resistance to ground insulation resistance≥ 500M ohms

Primary to secondary insulation resistance≥ 500M ohms

Terms of use

1.Applicable altitude: ≤5000m

2. Ambient temperature: -15°C~+45°C

3 Relative humidity: ≤90%

4. The installation site should be free of gas, steam, chemical deposition, dirt, conductive dust, and other explosive, flammable and corrosive substances that seriously affect the dielectric strength of the transformer.

5. Those who do not meet the above conditions of use shall be determined through consultation with us.