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Ventilated drive isolation transformers are purpose-built to provide the required voltage change for AC and DC variable speed drives. The separate primary and secondary windings provide electrical isolation between the incoming line and the VFD input; the ventilated core offers low heat emissions.
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Ventilated Drive Isolation Transformers (NEMA Rated)
Drive isolation transformers are designed to withstand the mechanical stresses, voltage distortions, and heating associated with motor drives. They provide all the benefits of a line reactor, with the extra reactance reducing harmonics and the effects of voltage and current distortion caused by the variable speed drive. In addition, drive isolation transformers provide the following advantages:
- Isolation between the drive system and the power source
- When the wye connected secondary is grounded, it prevents the transfer of common-mode noise and transients between the voltage source and the drive system
- Localizes the effects of drive-induced ground currents and prevents them from being passed upstream to the power system
Features
- Available for 5 to 200 hp drives
- 7.5 kVA to 220 kVA ratings
- 460 Delta VAC primary to 460Y VAC secondary
- The windings are designed to withstand over-current of 150% of the rated load for 60 seconds or 200% of the rated load for 30 seconds ; under overload conditions, a duty cycle of one start for every two hours is permitted
- 10-year warranty
Starting at
$1,270.00
(DM007JJ)
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