33kv 415v Dry Type Transformer 400 Kva

33kv 415v dry type transformer 400 kva uses epoxy resin as the insulating material.  The primary voltage is 33KV, the secondary voltage is 415V. Both the high voltage and low voltage windings are made of copper strips. The epoxy resin is cast and cured in a vacuum environment to form a high strength FRP structure. The insulation class is F and H.

Casting Mould

Casting Winding

Finished Product

The 33kv 415v dry type transformer 400 kv, which is manufactured by Wenzhou XiFa electric Power Equipment Co., Ltd, has good electrical performance, strong lightning resistance, high short circuit resistance, and light weight. The dry type transformer can be equipped with a temperature display controller to display and control the working temperature of the transformer windings to ensure the normal service life of the transformer.

Technial parameter:

Designing Feature of Dry Type Transformer:

This 33kv 415v dry type transformer 400 kva has undergone comprehensive insulation and structural reinforcement design to meet the stringent operating conditions of medium and high voltage power grids. Both the high voltage and low voltage windings of the equipment are made of oxygen free copper material, free from oxidation and rusting problems. The interlayer is equipped with a high performance F class insulation system, and additional glass fiber mesh plates are added to the inside and outside of the windings to effectively counteract the stress caused by alternating temperature changes of the 33kv 415v dry type transformer 400 kva and prevent winding deformation and insulation cracking.

Foil Winding Machine

Casting Machine and Oven

Finished Product

The entire machine adopts advanced vacuum pressure epoxy resin casting technology, completely eliminating internal bubbles and voids in the windings, ensuring uniform electric field distribution and stably controlling the local discharge quantity within 5pC. In addition, the 33kv 415v dry type transformer 400 kva is designed strictly in accordance with 33kV high voltage electrical standards for electrical clearance and creepage distance, which avoids risks such as concentrated electric fields and creepage breakdown under high voltage. The insulation aging is delayed from multiple dimensions including process, structure, and insulation design to ensure the long term safe and stable operation of the equipment and its suitability for various indoor industrial power distribution scenarios.

Distribution Transformer in Logistics:

Transformer in Process

Transformer in Testing

Transformer in Shipping

Wenzhou XiFa Electrical Power Equipment Co., Ltd. could produce more than 100 EA 33kv 415v dry type transformer 400 kva within 30 days. The marketing team and production team will ensure each 400 kVA dry type transformer delivered on the schedule. Meanwhile, the technical team would match the technical specification on BOQ to bring smooth experience on acceptance.