MAIN FUNCTION AND CHARACTERISTIC

◎  Bell type tank and the wave form shell.; Increase the strength of oil box, beautiful appearance;
◎  Core is with D shape yoke, 45 angle seaming;
◎  Core and oil box are well fixed and well protected on moving;
◎  Reasonable wrapping method, in the interior and exterior structure of coil; Use support; Hard paper bucket between coils increases the capacity of anti-shortcut;
◎  Advanced assembling method such as cold pressing and welding technology, installing with sets of coil, paper bucket production.

THE MEANING OF MODEL

SFZ-40000/33 Power transformer
Name: Three-phase windings OLTC dual immersion air-cooled power transformers
Type: SFZ-40000/33
Rated voltage: 33/6.9kv
Rated power: 35000/40000kVA
Rated voltage ratio: 33± 3× 2.5%/6.9kV
Rated currency: 700/3347A
PHASE: THREE PHASE
Rated Frequency: 50Hz
Connection Symbol: Dyn11
Tap changer: On load tap changer
Impedance voltage%: 13+0.8%
Cooling way: ONAN/ONAF
Winding Insulation Level
Lightning impulse withstand voltage(Kv, peak value) 1 min Frequency Pressure(kv, virtual value)

Full-wave
Latest wave

HIGH voltage SIDE: 170 185 75
Low voltage side: 75 85 35
Low-voltage neutral point: 75 35