kuivamuuntajat

Kuivamuuntajat, also known as dry transformers, are a type of electrical transformer that uses a dry-type core instead of the traditional oil-immersed core. The dry-type core is typically made of silicon steel laminations, which are stacked together and coated with a varnish to reduce eddy current losses. This design eliminates the need for oil, which is used in traditional transformers to insulate and cool the core and windings.

Dry transformers are commonly used in applications where space is limited, such as in switchgear, power distribution panels, and industrial control systems. They are also used in environments where the risk of oil leakage or fire is a concern, such as in underground installations or in areas with strict fire safety regulations.

One of the main advantages of dry transformers is their compact size and lightweight design. They are also more resistant to vibration and shock than oil-immersed transformers, making them suitable for use in harsh environments. However, they have a lower insulation level and a shorter lifespan compared to oil-immersed transformers.

Dry transformers are available in various voltage and power ratings, ranging from a few kilovolts to several hundred kilovolts and from a few kilovolt-amperes to several megavolt-amperes. They can be designed for either single-phase or three-phase operation and can be used in both indoor and outdoor applications.

In summary, kuivamuuntajat are a type of electrical transformer that uses a dry-type core instead of an oil-immersed core. They are commonly used in applications where space is limited, and in environments where the risk of oil leakage or fire is a concern. They have a compact size, lightweight design, and are resistant to vibration and shock, but have a lower insulation level and a shorter lifespan compared to oil-immersed transformers.