Product information：Produced by our company in the research and analysis of dupont NOMEX paper insulation properties, summarize the epoxy resin casting ladle type dry type transformer design experience, based on the development of class H new concept of security environmental protection dry type transformer, coil adopts vacuum impregnation, its product has the environmental protection, overload capacity is strong, has good heat resistance, moisture resistance, stability, chemical compatibility, low temperature resistance, radiation resistance and non-toxic, widely used in airports, railway stations, subway, city, hospital, power stations, buildings, hotels, shopping centers, residential buildings and the need for fire and explosion prevention etc.

SGB open type dry type transformer
Characteristics: high reliability, high grade, good heat insulation margin.Product of class H (working temperature 180 ℃) heat insulation level, and its main NOMEX paper insulation material is a class C (working temperature 220 ℃), left a large margin.Control temperature below 100 k, and class H insulation dry type transformer temperature rise limit is 125 k.Can be long-term overload running 120-130%.The partial discharge, less control under 5 PCS.Due to the dielectric constant of NOMEX paper is 1.5-2.5, is lower than the commonly used insulation materials, close to the dielectric constant of air, the whole product insulation system electric field distribution is uniform, less volume, and relatively stable.Products of our company to have good humidity-proof property, under the conditions of relative humidity is 95%, the density of NOMEX paper insulation can still keep 90% of the dry of the dielectric strength.Water difficult to penetrate through the surface of the high temperature and high pressure processing.The transformer can be free maintenance under normal use.

Safety performance is good, NOMEX paper limit oxygen index is high.NOMEX paper under 300 ℃ temperature not combustion can flame retardant, even after is Sharon smee can self-extinguishing.NOMEX paper does not contain any poison, even after combustion, will not release harmful gas, burning smoke temperature is not high, high transparency.The insulation system of this company product is NOMEX paper.Transformer when use, not for the environment and other equipment, especially for bodily harm.
Good environmental protection, low noise, the coil can be recycled.This product dont need to configure the fan, iron core, using special processing technology of Portuguese binding technology import silicon steel sheet, the design scheme with low flux density.Make sure the whole sets of transformer running noise lower than 15 db below the national standard.Products in the manufacturing, transportation, storage, the runtime will not cause any environmental pollution.Life after recycling, the customer can get the original value of the 50% return.
Core products using high permeability silicon steel sheet manufacturing high quality cold rolled orientation, core for all level 3 inclined seam, core column with a drawstring tie, surface coating bonding with silicon, raise the overall core.So as to effectively reduce the no-load loss and no-load current.And take special measures, the noise of the iron core.Low voltage winding adopts copper foil winding, foil type circle structure.Winding to improve the stability of the coil, after curing the overall good mechanical strength, greatly improving the anti-short circuit ability.High voltage coil adopts the block layer coil structure, effectively reduce the voltage between the layers, and enhance the lightning shock resistance, coil with NOMEX paper packets, both internal and external surface by vacuum pressure leaching paint for many times, make coil form as a whole, improve the mechanical strength of wire coil, improve the performance of transformer mold, moisture proof.