Fan Controllers

Fan cooling allows transformers to withstand higher power than the nominal rating while still maintaining optimum temperature and safety.  Fans are particularly important when integrated into the entire operation.  Therefore it is appropriate to consider the environment where the fan will be located and pay attention to factors that can influence the temperature of the transformer and utilize a variety of factors to help control temperature.  For example:

  • North-South orientation of the largest walls of the transformer room / location to reduce heating from the sun
  • Consider humidity inside the room
  • Keep the room as dust free as possible
  • Keep the area free of corrosive or flammable gasses

In many installations the transformer fan cooling is initiated by the temperature controller, which responds to the temperature of the transformer.  The ventilation of the transformer room is often controlled by a thermostat.  While these two devices work towards the same goal, they are working independently  For optimum air circulation, and ultimately energy savings, the two systems should work together to cool the room/transformer.

To achieve this, Tecsystem offers the VRT series of controllers to control the room ventilation fan, which works in conjunction with their product line of temperature controllers.  Tecsystem also offers a range of fans to provide ventilation if it is not already present.

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    Item # Temp - # of Inputs Temp - Output Type List Price
    VRT200U – 12V input1-3Relays OnlyREQUEST QUOTE
    Fan Controller; 2 Ptc inputs,12v supply, 230v fan lines
    VRT6001-3Relays OnlyREQUEST QUOTE
    Fan Controller; 6 Ptc inputs,230v supply, 230v fan lines
    VRT600U1-3Relays OnlyREQUEST QUOTE
    Fan Controller; 6 Ptc inputs,12v supply, 230v fan lines
    VRT2001-3Relays OnlyREQUEST QUOTE
    Fan Controller; 2 Ptc inputs,230v supply, 230v fan lines
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