Issue:
Transformers cannot change a source voltage frequency
Product Line:
LV Transformers
Environment:
Applies to all Low Voltage (LV) Transformer products by SquareD/Schneider Electric
Cause:
Transformers are passive devices. They provide no active electrical or electronic frequency conversion method. Whatever the frequency of a voltage that energizes a Transformer winding will energize the other Transformer windings at that same frequency
Resolution:
No. That cannot be done by a Transformer or other passive device. Frequency conversion requires an active device, such as a frequency converter, VFD, AFD, or motor-generator set. Standard Transformers offered by Squared/Schneider Electric typically operate at 60 Hz and when so energized cannot output 50 Hz. Similarly, our Export Model Transformers such as **S67F units can operate at EITHER 50 Hz or 60 Hz, but the frequency input will always be the same frequency output, although usually at a Transformed voltage change. In a typical application, 50 Hz in on the Primary = 50 Hz out on the Secondary. 60 Hz in on the Primary = 60 Hz out on the Secondary.
Typical Example: Customers often require 50 Hz power to operate a machine purchased from overseas but installed in the USA with standard 60 Hz utility power available. A passive Transformer alone cannot change the utility frequency of 60 Hz to the 50 Hz power needed to operate their new 50 Hz designed machine. The customer must make other arrangements to power their 50 Hz machine as outlined above.
Released for:Schneider Electric USA
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