HVAC Electrical

Electrical voltage and current that changes in magnitude and direction in cyclic characteristic; _ electricity in North America cycles 60 times per second

• AC

• Ampere

• Cathode

• DC

An instrument used to measure current flow through a circuit

• Capacitor

• Centrifugal switch

• Ammeter

• analog meter

a unit of current flow equal to one coulomb of charge moving through a circuit in one second

• British thermal unit (Btu)

• Ampere

• Cathode

• Atom

a meter that displays information using a needle over a scale

• dictated circuit

• contact points

• clamp-on ammeter

• Analog meter

a positive terminal of an electrical device

• atom

• anode

• cathode

• capacitance

the smallest unit of an element, made up of protons, electrons and neutrons,(except hydrogen)

• atom

• cathode

• coil

• conduit

a unit of energy based on the amount of heat required to raise the temperature of one pound of the water degree Fahrenheit

• British thermal unit

  (Btu)

• cathode

• circuit

• coulomb

a measure of the energy stored in a capacitor; units of _ are farads

• capacitance

• capacitor

• cathode

• coil

A device made with two conductive plates separated by a dielectric used to increase on inductive load efficiency by changing the phase angle and electrostatically stores electrical energy

• digital voltmeter

• data plate

• capacitor

• centrifugal switch

a modification of a split-phase motor that uses a capacitor in series with the start winding; the capacitor causes a phase displacement for starting

• capacitor-start motor

• capacitor-start induction-run motor

• capacitor start capacitor run motor

• cathode