1. The primary side is 1 loop with 6 contactors are configured each to control the output of
220V/400V/480V/540V/600V/800V separately.
2. Push-button switch is used to control the output of the contactor. The loop contactor interlock can only have one voltage output.
3. The equipment is equipped with temperature monitoring (winding temperature, core temperature) switching, and the fan is started to cool when the internal temperature is higher than 60 degrees Celsius, and the fan is stopped when the internal temperature is lower than 45 degrees Celsius. Alarm sound occurs when the internal winding temperature exceeds135 degrees Celsius. The transformers automatically shuts down the total input power when the temperature is greater than 150 degrees Celsius.
4. Product total weight nearly 2000KG.
Electric Characteristics
| 1 |
Connection Group |
Dyn11 |
| 2 |
Rated capacity of primary winding |
300kW |
| 3 |
Rated capacity of sencondary winding |
300kW |
| 4 |
Primary rated line voltage |
400V |
| 5 |
Secondary rated line voltage |
400V |
| 6 |
Primary side impedence |
/ |
| 7 |
Mains voltage fluctuation |
< +/-5% |
| 8 |
Working frequency |
50/60Hz |
| 9 |
Efficiency |
>98% |
| 10 |
The load cycle |
Continous operation |
| 11 |
Impedance voltage |
3(+/-1)% |
| 12 |
Type of transformer |
Dry type |
| 13 |
The temperature sampling |
Thermistor (NTC) temperature switch |
| 14 |
Isolation resistance |
P,S,E>500MΩ DC2500V/60s |
| 15 |
Dielectric strength |
<30mA 3KVAC/60s |
| 16 |
Isolation grade |
H(180ºC) |
| 17 |
Allowable temperature rise |
125K (rated current, forced air cooling) |
| 18 |
Noise |
<70dB (measured with a sound level meter at 1m) |
| 19 |
Cooling type |
AF (Forced air cooling, control panel with independent control switch) |
Audited Supplier 
Audited Supplier 
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