Cast Resin Dry Type Transformer (CRT)

Cast Resin Dry Type Transformer (CRT)

The transformer is referred to as dry type because it does not use any liquid type of coolant such as oil, hence the term dry. Instead, the cooling is done through natural air or artificially the transformer is equipped with fans and air is flown into it.
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Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of cast resin dry type transformer (crt) in China. If you're going to buy customized cast resin dry type transformer (crt) made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.

 

Cast Resin Dry Type Transformers are fabricated using a high grade insulating material known as epoxy resin and here the windings are encased. This material, when hardened, forms the body of the transformer. It provides exceptional insulation, enhances durability and minimizes the risk of fire hazards. This type of transformer is known for its safety and reliability, particularly in environments that require a high level of safety such as high rise buildings, hospitals, shopping malls, airports and more.

Ratings Single Phase
25 kVA to 2667 kVA
Three Phase
25 kVA to 8000 kVA
Applicable Standards IS 11171,IEC 726,ANSI.C.12.01
Cooling AN, ANAF
Frequency 50 Hz, 60 Hz
Vector Group As specified
Primary Voltage Upto 33 kV
Secondary Voltage 220/127, 480/277 V
(Other Voltages as required)
Winding Material Copper / Aluminium
Tapping Range + 5% in steps of 2.5%
(Other tappings as required)
Impedance In line with applicable standards

Medium voltage dry type transformers

A basic overview of these type of transformers can be mentioned as under:

1.The windings are made of copper or aluminum conductors, which are insulated with epoxy resin. The resin helps to provide solid insulation and enhances the strength of the windings.
2.In cast resin transformers, the core and windings are cooled by air conduction. The windings are encased in epoxy resin, which has excellent heat dissipation properties, allowing the heat produced during operation to be effectively transferred to the ambient air.
3. Since they do not use flammable coolants like oil, these transformers pose less of a fire risk. This makes them ideal for use in areas where fire safety is a major concern, such as residential buildings, hospitals, and schools.
4.Cast resin transformers require less maintenance compared to oil filled transformers. They do not need to be periodically checked for coolant leaks, making them a more cost effective option over their lifespan.
5.As they do not use oil, there is no risk of soil or water contamination in case of a leak. This makes them a more environmentally friendly transformer option.
6.These transformers are widely used in places where safety is of utmost concern and in areas that have strict environmental regulations. They are commonly used in indoor and outdoor applications, renewable energy systems, industrial plants and commercial buildings.

production process

Cast coil transformer

GNEE dry type transformer factory

Indoor dry type transformer

 

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