Specification

If you are interested in our transformers and related transformer accessories, please get more information and professional solutions through this website or directly through info@wishpower.net

What is the Oil–filled Pad–mounted Transformer?

Electric distribution systems commonly utilize the oil-filled pad-mounted transformer. This product steps down high voltage to a lower level for residential, commercial, or industrial use. It is a sealed transformer, compact in size, the mineral oil used for insulating purposes, and as a cooling medium. The oil inside the transformer serves two primary functions: It insulates the internal components prevents electrical short circuits and dissipates heat produced by the electrical components during their operation. The transformer is mounted on a concrete pad for stable mounting and protection from the outside environment. Its particular nature makes this design suitable particularly in cases where there is a lack of space in which to fit the transformer, and where it has to be installed by safe means, in the proximity of residential or commercial buildings. The pad-mounted construction is easy to reach for repair and maintenance and the sealed design provides additional safety by sealing in the oil and eliminating leaks. It is also an ideal solution where a smaller footprint is sought and high performance is still important. commonly used in urban and suburban power distribution networks, where the reliability, safety, and efficient use of space is important.

Oil-filled Transformer VS Dry-type Transformer

In electrical distribution systems, voltage step-down is handled by an oil-filled transformer and a dry-type transformer, but the two are so vastly different in construction, cooling methods, maintenance requirements, and safety precautions.

This transformer, oil-filled, uses mineral oil as an insulating and cooling medium. Insulation, and also dissipating the heat created during operation are the duties of the oil that surrounds the transformer’s core and windings. This design enables oil-filled transformers to run at higher electrical loads under varying temperature conditions. Of course, you need to keep an eye on the oil level and quality as well as no leaks with regular maintenance. Modern designs of transformers however use fire-resistant oil and contain protective measures, and the oil carries a higher risk of fire or environmental contamination if the transformer is damaged.

The dry-type transformer uses its isolator element and does not need oil insulation or additional cooling. Instead, it employs insulation materials such as air epoxy or resin to separate the core and windings. There are a lot of dry-type transformers and cooling mechanisms based on air circulation like air natural convection or force air cooling. There are mostly fewer of these transformers because of the absence of oil which makes them smaller and lighter. They are easier to maintain, pose less fire hazard, are oil-less, and thus work well in places where safety is an issue (places where flammable liquids are used).

How to choose oil-immersed and dry-type transformers?

The selection between the oil-filled transformer and the dry-type transformer largely depends on the specific requirements for the application, since each of them has an advantage that makes it more justified to be used in the conditions or terms of operating.

An oil-filled transformer is best when heating must be absorbed by the transformer and there is a high load. These transformers run efficiently under heavy electrical loads because the oil bears both an insulating and a cooling function. Because of that, oil-filled transformers are especially apt for usage in larger industrial applications as well as in power distribution networks. In a high power demand environment, they can withstand temperature variations, and dissipate heat more effectively. But for now, they’re dependent on oil and must be maintained regularly to ensure that oil levels are correct and contamination is avoided, and are more likely prone to fire risks or environmental concerns if not handled properly.

Where safety and lower maintenance are added benefits, a dry-type transformer is preferred. The oil-free dry-type transformers are less hazardous in the event of fire when compared to other types, and are hence suitable for indoor installation, commercial areas, and places where flammable materials are in use. Because they’re so compact and light, they’re good for locations where space is at a premium. The solid insulation materials used in dry-type transformers mean there is no need for oil management and there is no risk of leaks (or environmental contamination). Though they don’t dissipate heat as thoroughly nor handle as large a load, their design makes them easier to maintain, making them more suitable for installations that don’t need high-power handling.

Certificate

Factory

Hot Tags: Oil-filled Pad-mounted Transformer,  transformer, made in Thailand available, manufacturers, ISO factory, wholesale, KEMA, high quantity, best, price, low to high voltage