Technical parameters of dry-type transformers

1. Usage frequency: 50/60Hz;
2. No load current:< 4 % ;
3. Voltage resistance strength: 20000V/min without breakdown; Testing instrument: YZ1802 voltage tester (20mA);
4. Insulation grade: F grade (special grade can be customized);
5. Insulation resistance: Greater than or equal to 2M ohm testing instrument: ZC25B -4 type megohmmeter<1000 V);
6. Connection method: Y/Y , △/Y0, Yo/△, auto coupling type (optional);
7. Allowable temperature rise of coil: I00K;
8. Heat dissipation method: natural air cooling or temperature controlled automatic heat dissipation;
9. Noise coefficient: Less than or equal to 30dB.