22 MVA 12.47 kV Power Transformer

Key Transformer Features

Power Rating

As this transformer is designed for Taxes national power grid system, it offers three different power ratings to deliver a comprehensive adaptability to different power outputs of national grid stations.

The transformer offer power rating of

• 12 MVA
• 16 MVA
• 22 MVA

In any given power rating, the transformer can offer different voltage and current combinations depending on the tap changer position. The 12 MVA work here as base line power rating and transformer impedance and load and no load losses are calculated based on this power rating.

Voltage & Current rating and Tap Position

This electrical transformer is designed with 12 KV (12470 Volts to be exact) as rated transformer voltage and with current of 1018 amps. The transformer offers 17 different tap positions that means 17 different voltages and current combinations to meet the ever changing grid supply and attached electrical load demand.

Transformer Oil and Cooling System

This is an oil type electrical transformer that uses mineral oil for transformer insulation and cooling purposes. The transformer uses about 21560 pounds of mineral oil for its insulation and cooling purpose. The transformer oil is kept inside a transformer tank that is designed and developed to hold oil and also facilitates the waste heat transfer.

To remove the waste heat, transformers use three different cooling systems where each system is designed to effectively remove waste heat of a specific power rating. The transformer has oil natural air natural, oil natural air forced system 1 and oil natural air forces system 2.

Transformer Weight and Dimensions

Each part of the electrical transformer is very carefully designed and manufactured to deliver a compact design with minimum dimensions so that it is easy to transport and install the power transformer.

Weight of each major part of the electrical transformer is given below in pounds for better understanding of the transformer.

Application

The power transformer delivered to Taxes USA can be used in different application in Taxes that includes:

• Utility power distribution system
• Power generation plants like thermal plants, hydroelectric plants, and renewable energy plants
• Large industrial facilities
• Urban Substations
• Large battery energy storage systems
• Railways electrification systems
• Large infrastructure projects like airports, data cents and oil and gas fields
• High voltage transmissions systems
• Smart grid and automated grid systems

Advanced Engineering & Compliance

The power transformer was designed and developed for Taxes USA and it follows all the international standards that are being followed in Taxes USA. The transformer had gone through complete factory acceptance testing and site acceptance testing before being commissioned on site. Some basic compliances are

• IEEE C57.12.00 Standard
• UL Listed E583815
• PCB Free at manufacture

Safety and Maintenance Guidelines

• The secondary side of the CT must not be open circuit
• The electrical transformer core and bushing must be grounded
• You should fully read and understand the transformer user manual before operationalizing
• You should not operate the transformer when the oil level reading in the liquid level gauge is below the low point marked on the gauge.
• The transformer is an onload tap changer so you can safely change transformer taps with it being energized.
• You need to perform dissolve gas analysis on transformer oil every two years.

Why Choose Daelim

Daelim transformers offer power transformers of any type, size, power capacity, and voltage range. Our transformers have all the standard features and we also offer customer design based on the client requirements. We deliver transformers that can compile with your national and mentioned international standard. We offer complete inhouse design, development, and testing of electrical transformers and we also provide our client with logistics planning and shipment services.

If you have any query about electrical transformers, contact our team and we will be happy to help you in your project.