E2 enviromental class, C2 Climate class
F1 Fireproof class
High voltage multilayer segmented cylindrical structure, low voltage longitudinal airway foil srtucture
Insulating level achieves Grade H
Thin insulation structure, cold and thermal shock for crack resistance
The three-limb iron core is made of oblique cut Grain-oriented, seven-step silicon steel laminations insulated on both sides, guaranteeing low losses and low noise. These values are even improved by laser treatment. It is protected on the surface with a flash-proof varnish in order to prevent the sheet from corrosion and to reduce the noise.
Clamping frame processed by CNC cutting, bending and then one-time punch forming, the hole’s size is accurate and the appearance looks delicate.
The winding coil is made of oxygen-free copper, class H for main insulation materials and coil is insulated by NOMEX paper of DUPONT brand,
The winding coil is made of oxygen-free copper, class H for main insulation materials and coil is insulated by NOMEX paper of DUPONT brand, with excellent overload capacity and low loss.
The low voltage winding designed as foils winding, Reduction of extra losses, Balanced temperature distribution within the winding, High short-circuit capability.
Dry-type transformer type
IEC, ANSI, NFC52 etc
single or three phase
With tapping links or on-load tap changer
Dy, Yy, Yd as standard. Other on request
According to IEC 60085, Class F or Class H
With ambient temperature in accordance with IEC 60076-11
Type of cooling
IP00 to IP54
Only Focused on transformers, but we offer customized different types of transformers.
+20 years experience R&D team, derived from a 60 years history transformer factory in Changsha city of China.
One of the drafters of Chinese National Standard (for Mining explosion-proof Mobile Substations). Unique deisgning for customers' convenience,like “Vertically Lifting”.
Varelen Electric Co., Ltd