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: ≥ 2M ohms Testing instrument: ZC25B -4 type megohmmeter<1000 V);
6. Connection method: Y/Y, △/Y0, Yo/△, self coupling (optional);
7. Allowable temperature rise of coil: I00K;
8. Heat dissipation method: natural air cooling or temperature controlled automatic heat dissipation;
9. Noise factor: ≤ 30dB.