20KV Class Three Phase Oil-Immersed Distribution Transformer

The 20KV Class Three Phase Oil-Immersed Distribution Transformer is designed for a 20-kilovolt voltage class, operates with a three-phase system, and is immersed in oil for efficient electrical distribution in power networks.

Production Description

Compared with 10KV class, 20KV three phase oil-immersed distribution transformer has some advantages:
1.Increase power supply capability,
2.Ensure the voltage quality.
3.Debase the electric energy loss in power system, etc.
It can save the construction fee of power system. It is the developing product of energy conservation in power system.

20KV Class Oil-Immersed Distribution Transformer

Distribution Transformer Construction

• The designing of a distribution transformer can be done similarly to small size transformers. The main parts of this transformer mainly include Oil Tank, Conservator, Buchholz Relay, Breather Unit, Oil Indicator, Temperature Detector, Pressure Relief Device, Thermal Relay, Radiator, and Bushing.
• The oil tank is used to soak the windings by placing it in.
• A conservator is arranged above the oil tank at the outside of the transformer frame. It is connected to the main tank with the help of a metallic tube. The oil within the tank can be easily contacted & enlarge throughout loading so that the temperature of the oil can be increased & decrease.
• Buchholz relay is used when a conservator tank is used. Because it indicates errors like loss of oil once it goes low, improper flow of oil between the tank & transformer.
• Breather Unit includes silica gel that absorbs moisture in the oil. It changes its color from blue color to pink color it is not capable to absorb moisture in the oil.
• The oil indicator indicates the level of the oil within the conservatory unit.
• The temperature detector monitors the temperature of the oil. If the temperature of the oil increases to a certain level then the transformer will be disconnected from the service.
• Pressure relief device decreases the pressure within the transformer to avoid an explosion of the transformer.
• Thermal relay is used as an indicator for the temperature of the winding.
• The radiator is used to increase the transformer's cooling efficiency.
• The bushing is used to connect the internal windings of the transformer with the help of an exterior electrical network.

The company is mainly engaged in the production of epoxy resin dry-type transformers, three-dimensional triangular wound core transformers, power transformers and intermediate frequency furnace transformers. Products include SCB10, SCB12, SCB13, SCB14, SCB18, S11-M, S13-M, S13-MRL, S20 and S22 series distribution transformers.

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