Fire resistant / self-extinguishing
• Environmental and climate class E4 C5 F1
• Lower load loss and higher reliability
• High resistance to short circuits
• Thin insulation structure, cold and thermal shock for crack resistance
• Higher load capacity
• customized transformers can meet a variety of high altitude requirements
• Maintenance-free
| Main Specification | |
| Transformer Type | cast resin |
| Rated capacity | up to 25mva |
| Rated voltage | up to 66kV |
| Frequency | 50/60 Hz |
| Phase | 3 Phase |
| Winding material | Copper /Aluminum |
| Insulation class | F( 150℃）, H（180℃） |
| Vector group | Dyn11, Dyn5, YNd1d1 on request |
| Protection Enclosure | IP00 to IP54 |
| Cooling |
AN, AF, ANAN, ANAF, AFWF |
|
Climate |
C3, C4, C5 |
| Environmental | E2, E3, E4 |
|
Fire behaviour |
F1 |
| Standard |
IEC, AS, EN, IEEE/ANSI, GOST |
| Altitude | Max 5000m |
| Accessories |
Fans Enclosure Tap changer Temperature monitoring Antivibration pads |
| Application | industrial, commercial and catering facilities, public buildings, solar and other indoor applications. |
Step Lap Lamination
Excellent cold rolled grain-oriented silicon steel is used for core. The silicon steel is cut by automatic machine with high accuracy and small burr. Low no-load loss and current are achieved by the technology of pin-stacking and stacking without upper yoke. The structure can reduce the noise effectively.
LV foil winding
The standard low-voltage winding twine by copper foil (or aluminum foil) with interleaved DMD which bear less dielectric stress. The assembled coils are then oven-cured to form uniformly bonded solid cylinders that are anti-moisture. Such winding has excellent dynamic stability under shortcircuit condition.
Routine test
Type test
Special test
