Dry-type transformer overload capacity and working principle

Because a Dry-type transformer has the advantages of strong short-circuit resistance, small maintenance workload, high operating efficiency, small size, low noise, etc. It is often used in places with high-performance requirements such as fire prevention and explosion protection. Next, let's take a look at the overload capability and working principle of the Dry-type transformer. Here are some answers.

Here is the content list:

l The overload capability of the Dry-type transformer.

l Working principle of Dry-type transformer.

The overload capability of the Dry-type transformer.

The overload capability of the Dry-type transformer device is expounded to the close temperature, the load condition before overload (initial load), the insulation and warmth dissipation of the electrical device, and therefore the heating time constant. If necessary, the overload curve of the Dry-type transformer may be obtained from the manufacturer. How to use Dry-type transformer overload capacity? Zhejiang Shuntong Electric Co., Ltd. puts forward one point for reference: it can be appropriately reduced when choosing to calculate the transformer capacity. Fully consider the possibility of short-term impact overload of certain steel rolling, welding, and other equipment: try to use the strong overload capacity of the Dry-type transformer to reduce the transformer capacity. For places with uneven loads, such as residential areas with night lighting, cultural and entertainment facilities, and shopping malls with air-conditioning and daytime lighting, the overload capacity can be fully utilized, and the transformer capacity can be appropriately reduced to make the main running time is at full load or short-term overload.

Working principle of Dry-type transformer.

Dry-type transformer, like other transformers, follows the physical principle of voltage technology required for the use of electrical and magnetic coupling: when current flows through the wire, the Dry-type transformer will generate a changing magnetic field or surrounding "magnetism". The magnetic field fluctuates around the wire, and it generates a current in the wire. Therefore, there will be a fluctuating magnetic field in the second line and the first line, and when placed aside, the current is induced to flow in the second line. Therefore, power is passed from the first to the second wire, the two wires are not touching.

The Dry-type transformer uses the principle of electromagnetic induction. An electrical appliance that transfers electrical energy or signals from one circuit to another is an important element for electrical energy transmission or signal transmission. It's wide employed in native lighting, high-rise buildings, airports, terminal CNC machinery instrumentation, and different places. Simply put, a Dry-type transformer refers to a transformer whose core and windings are not immersed in insulating oil. The Dry-type transformer is principally divided into 3 kinds: open type, closed kind, and solid kind.

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