11kv 2000kva Three Phase Cast Resin Dry Type Transformer

The properties of epoxy resin for 11kv 2000kva three phase cast resin dry type transformer

Deflection temperature (°C): 90~100

Coefficient of linear expansion (K⁻¹): 60~70

Thermal conductivity [W·(m·K)⁻¹]: 0.2~0.3

Flexural strength (N·mm⁻²): 130~150

Tensile strength (N·mm⁻²): 80~90

Compressive strength (N·mm⁻²): 130~150

Dielectric loss tangent tanδ (%): 0.5~2.5

Dielectric constant ε: 3.5~4.5

Volume resistivity (Ω·cm): 10^16 ~ 10^17

Dielectric breakdown strength (kV·mm⁻¹): 18~22

The epoxy resin used for casting the 11kv 2000kva three phase cast resin dry type transformer has a dielectric breakdown strength of 18 to 22 kV/mm, and has approximately the same lightning impulse withstand voltage level as an oil immersed transformer of the same voltage class.so it’s insulation level is very high.

Thanks to the material characteristics of the epoxy resin and the integral casting of the windings, which form a rigid body after heat curing, the 11kv 2000kva three phase cast resin dry type transformer exhibits outstanding mechanical strength. Short circuit withstand tests have demonstrated that 11kv 2000kva three phase cast resin dry type transformer are rarely damaged by short circuits.

Epoxy resin is difficult to ignite, flame-retardant, and self-extinguishing, and is unlikely to cause secondary disasters such as explosions. This gives 11kv 2000kva three phase cast resin dry type transformer good disaster prevention performance.

As a chemically highly stable material, epoxy resin is resistant to moisture and dust, allowing reliable operation even in harsh, heavily polluted atmospheric conditions. So 11kv 2000kva three phase cast resin dry type transformer function normally in climates with up to 100% humidity, and can be restarted after shutdown without drying or preheating.

Meanwhile, dry type transformers do not require a separate transformer room or core lifting for maintenance, which saves floor space and correspondingly reduces civil construction investment.

Based on the above advantages, the market share of 11kv 2000kva three phase cast resin dry type transformer  has become increasingly higher

Product Parameters:

Product delivery lead time

Approximately three weeks after receiving the customer's advance payment, we will complete production and make the delivery.

Producing Equipment

Semi Finished Product

Protection Enclosure IP21

Transformer Core

Transformer Winding

Test Center

Winding Workshop