Equipment Structure Of Box-type Transformer

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A prefabricated transformer is not just a transformer; it's essentially a small substation, belonging to the distribution substation category, directly supplying power to users. It includes a high-voltage compartment, a transformer compartment, and a low-voltage compartment. The high-voltage compartment is the power supply side, typically containing 35kV or 10kV incoming lines, including high-voltage busbars, circuit breakers or fuses, voltage transformers, surge arresters, etc.

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The transformer compartment contains transformers, the main equipment of the prefabricated transformer. The low-voltage compartment contains low-voltage busbars, low-voltage circuit breakers, metering devices, surge arresters, etc., from which lines are drawn to supply power to users.

The protection system for prefabricated transformers is specifically designed to protect the transformer. It's a high-tech power automation product integrating protection, monitoring, control, and communication functions, making it an ideal electrical unit for intelligent prefabricated transformers. This product has a built-in protection library consisting of more than twenty standard protection programs, possessing a complete and powerful acquisition function for analog and digital voltage and current quantities of primary equipment (current measurement is achieved through protection current transformers).