Three phase transformer SG-300KVA

Three phase isolation transformerTechnical Specifications:

Technical parameters of the transformer: The SG series three-phase dry-type isolation transformer is manufactured by our factory based on similar products from around the world, in compliance with global and continental standards such as IEC60076-11 and GB6450. The winding adopts the method of forming a whole line winding. The transformer is vacuum painted to achieve an insulation level of H and product performance that reaches the world's advanced level.

Product Features:

By establishing a new neutral ground connection in the isolation transformer, the common mode interference and other neutral line troubles in the power grid can be eliminated. The isolation transformer converts the three wire △ connection to a four wire Yo system, and further eliminates high-frequency pulse interference and noise coupled inside the transformer by adding shielding. Although shielded isolation transformers can effectively prevent various N-G interferences (pulses and high-frequency noise), the transformer must be properly grounded and strictly grounded, otherwise anti common mode interference will be ineffective.

Characteristic advantages:

1. Highly isolated

2 N-G has good performance

3-level common mode interference suppression

Convert △ to Y

5 voltage taps are easy to switch

Design according to the special performance requirements of users

Technical Indicators:

1.型号： SG-300KVA 容量： 300KVA

2. Rated input voltage: three-phase 380V Rated input current: 455A

Output rated voltage 220V, output current: 787A

3. No load current:<4.2A

4. Impedance; ：<5%

5. Load loss:<180W

6. Operating frequency: 50Hz-60Hz

7. Efficiency: ≥ 95%

8. Temperature rise:<60K

9. Waveform distortion:<0.1%

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

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

12. Primary to secondary insulation resistance ≥ 500M ohms

13. Overload capacity: 2 times the rated current without any abnormalities for 1 minute

14. Material: Copper core

15. Insulation level: H level

16. Connection method: Dyn11,

17. Noise<65Db

18. Protection level IP54/IP20

19. Cooling method: air cooling

20. Transformer weight 900KG

21. Dimensions 1200 * 850 * 1100

Usage conditions:

1. Applicable altitude: ≤ 5000m

2. Environmental temperature: -15 ℃ to+45 ℃

Relative humidity: ≤ 90%

The installation site should be free of gases, vapors, chemical deposits, dirt, conductive dust, and other explosive, flammable, and corrosive substances that seriously affect the insulation strength of the transformer.

Any items that do not meet the above usage conditions should be determined through consultation with us.