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Shell Protection Device

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Our Features

Shell is made of stainless steel or aluminum alloy. Protection grade can reach IP20 and IP23.IP20 housing can prevent solid foreign objects of diameter more than 12mm enter into and protecting the transformer safely.IP23 housing can prevent the vertical drop of less than 60° of flow, suits for outdoor operation.

Note: IP23 housing can make the transformer cool, small capacity is decreased by about 5%, and high-capacity is decreased by about 10%.

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TEMPERATURE, HUMIDITY

  • The temperature control system is composed of a temperature controller and PTC thermometer element of lower voltage winding in the hottest point. Realize to control and measure the temperature of the transformer. If the operation fails for overload or the transformer winding temperature is too high, the temperature controller will send an alarming signal. When the temperature exceeds the value of their safety trip. Forced air cooling by the temperature controller is according to the winding temperature which is decided by the input or switch cooling fan.

  • Direct indication of temperature display system during the operation of the transformer winding hot spot temperature, and temperature control system can be used in conjunction.

  • Temperature control and temperature display system can be installed at a certain distance away from the main transformer, the length of the temperature component is:

  • Temperature control: <20m

  • Temperature display: <10m(2 wires)

  • <100m(2 wires with a compensating conductor)

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