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VFDVolunteer Fire Department
VFDVotes for Deletion (Wikipedia concept where people can vote for deleting bad articles)
VFDVerified Free Distribution
VFDVictoria Fire Department (Canada)
VFDVoice Fax Data
VFDVillage of Fowl Devotees (books by Lemony Snicket)
VFDVoies Ferrées du Dauphiné (French: Railways of the Dauphiné; France)
VFDValley of Four Drafts
VFDVernacularly Fastened Door (Lemony Snicket)
VFDVery Fun Day (Lemony Snicket)
vfdVerbal Fridge Dialogue (Lemony Snicket)
VFDVery Fancy Doilies (Lemony Snicket)
VFDVolunteer Feline Detectives (Lemony Snicket)
VFDVery Fresh Dill (Lemony Snicket)
VFDVenom Feels Delightful
VFDViolet's Fifteenth Date (Lemony Snicket Books)
VFDVery Frightening Danger
VFDVineyard of Fragrant Drapes (Lemony Snicket)
VFDVery Fine Day
VFDvery fine doilies (Lemony Snicket)
VFDVery Fine Dramatists (Lemony Sniket)
VFDViolent Flaming Death
VFDVery Fast Death Factor (toxin class)
VFDValorous Farms Dairy (fictional, Lemony Snicket)
VFDVolunteers Fighting Disease
VFDVeterinary Feed Directive
VFDVacuum Fluorescent Display
VFDVariable Frequency Drive
VFDVariable Field Data
VFDVerdant Flammable Device (fiction, Lemony Snicket)
VFDValley Fire District (Peninsula, OH)
VFDVerse Fluctuation Declaration (Lemony Snicket)
VFDVirtual Flight Deck (aviation)
References in periodicals archive ?
The DOE (2012) presented the efficiency data of pulse width modulation (PWM) VFDs with the rated load from 5 to 200 hp as a function of the fraction of the full load provided by one VFD manufacturer.
On the basis of voltage range, the VFD market is segmented into medium and low.
The Primary Flow % calculation (Equation 5) will be used to control Primary Pump VFD speed to maintain Primary Flow % calculation at a designated setpoint (Table 2).
Depending on the exact system configuration, hundreds or even thousands of dollars in energy costs can be saved every year with the VFD.
Besides open areas such as petroleum sites and off-shore oil platforms, VFD is also ideal for towering spaces like warehouses, museums and movie theatres, where it usually takes a long time for smoke or flames to reach the fire alarm sensors.
A new innovation in high-flow pumps, the electric VFD (Variable Frequency Drive) DV-400 16-inch pump is an essential part of any bypass pumping system.
The Series VFD direct operated poppet valve is for use in Zero Pressure Accumulation conveyor systems.
Some VFD systems still incorporate PRVs in case of VFD failure, which would lead to full-speed running of the pumps, but alternatives exist--such that the pumps shut off if a VFD or sensor fails.
The second result showed no influence of head position for all VFD participants, whereas for VFI participants significant difference between upright and tilted head appeared both in expert (3[degrees] [+ or -] 1[degrees]; 4[degrees] [+ or -] 2[degrees]) and untrained individuals (3[degrees] [+ or -] 1[degrees]; 5[degrees] [+ or -] 2[degrees]).
From this description, you can see a VFD is basically a computer and power supply.
When you equip a blower with a VFD, you can reduce the rpm of motors in time when air is not required as much, like at night when people are sleeping," says John Cannard, P.