Single Phase 75kVA Pole Mounted Transformer

A single-phase pole-mounted transformer is a type of electrical transformer that is typically mounted on a utility pole. These transformers are used to step down the high voltage from the power lines to a lower voltage suitable for residential or commercial use. They are commonly found in rural or suburban areas where they serve as a critical part of the electrical distribution system.

The design of a single-phase pole-mounted transformer includes a steel tank containing the transformer core and windings. The tank is filled with insulating oil for cooling and insulation purposes. On top of the tank, there are high-voltage bushings where the incoming high-voltage lines are connected, and low-voltage bushings for the outgoing lower voltage lines.

-High voltage copper wire winding technology to improve lightning resistance performance

-Low voltage foil winding technology, high-quality A-E grade insulation material insulation

-Low magnetic leakage, high mechanical strength, and strong short-circuit resistance

-The material of the iron core is high-quality cold-rolled grain oriented silicon steel sheets with mineral oxide insulation (from Baosteel and Wuhan Iron and Steel Group in China)

-By controlling the process of cutting and stacking silicon steel sheets, the loss level, no-load current, and noise are minimized

Transformer protection measures are a crucial aspect of transformer operation. This includes overcurrent protection, short-circuit protection, and overload protection.

Transformer Overcurrent Protection: When the current within the transformer exceeds the rated value, it should be controlled by overcurrent protection devices, leading to shutdown protection.

Transformer Short-Circuit Protection: In the event of a short circuit in the transformer, control should be achieved through short-circuit protection devices, leading to shutdown protection.

Transformer Overload Protection: When the transformer operates with an overload, overload protection devices can be employed to control the transformer and initiate shutdown protection.

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