Distribution Transformers

 

Distribution Transformers

Transformer Manufacturers India is counted as one of the reputed Distribution Transformers Manufacturers, Suppliers and Exporters from India. The distribution transformers are popularly known for the distribution of electric energy at low voltage levels. The transformer also holds good mechanical strength, which further ensures better withstand with short circuit forces. Further, to meet the requirements of the application areas, the distribution transformers are available in various capacities ranging from 100 KVA to 15 MVA. Moreover, the array also includes pole-mount transformers, and pad-mount transformers, which are names according to their place of installation.

Specifications of Power Electrical Transformers:

• Application: Indoor or outdoor
• Tapping: Offload tap changer or on load tap changer
• Winding: Copper or Aluminum (as per requirement)
• Cooling: ONAN Cooled
• Capacity: 100 Kva to 15 MVA
• Input Voltage: 11kV, 22kV, 33 kV (or as required)
• Output Voltage: 0.433kv or as required

Specific Features of Electrical Distribution Transformers:

• Designed to withstand electrical impulses and thermal and dynamic stresses
• Made of high grade components
• Advanced manufacturing techniques ensure cost effectiveness and reliability
• Provides a long trouble-free performance
• Low power loss and low noise

Construction of Power Distribution Transformer:

• The assembly of the transformer is baked and then submerged in the gray powder coated steel tank.
• The marl oil disperses heat and therefore protects the transformer from moisture. The moisture floats on the oil’s surface,
• To remove the remaining content of moisture, temporarily depressurization of the tank is required. That further causes arcing and on the top, the transformer us sealed with a gasket to protect against the weather changes.
• Consists of shell type and core type laminations of sheet steel stacked. These sheets are either banded together with steel straps or glued together using resin.
• Enamel coated copper wire is used to wound the low current, high voltage primaries and on the other hand, thick ribbon of aluminium or copper that is insulated with resin-impregnated paper is used for the high current, low voltage secondary.
• High purity mineral oil i.e., inert and non-conductive, is filled in the powder coated steel tank.

Applications of Electrical Distribution Transformer:

• Cement Industries
• PWD
• Dairy Department
• Private & Public Sectors
• Buildings
• Power Generation Houses & Electricity Boards
• Wind Mills
• Chemical Industries

Classification of Power Distribution Transformers:

On the basis of certain factors, the Distribution Transformers are classified as below:

• Number of Phases: On the basis of number of phases, single-phase or three-phase are available.
• Voltage Class for Dry-Type: The voltage class is also very important for the proper functioning of the transformer in respective application areas. Low voltage or medium voltage transformers are available.
• Insulation: The transformers are either liquid-immersed or dry-type, to meet the requirements of the application areas.
• Basic Impulse Level (BIL): This is required for medium-voltage and dry-type transformers.