Definition(s)
Variable Frequency Drive (VFD)
Electric motor that adjusts its speed by adjusting the frequency of AC power.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Oil & Gas Drilling Glossary - IADCLexicon.org
Electric motor that adjusts its speed by adjusting the frequency of AC power.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards