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UPS-Direct is a full service supplier, we help you throughout the project. From the beginning, site-surveying and advising you on the most cost-effective way to protect your business, through to continued back-up and maintenance. We hope you find this 'Jargon Buster' glossary of terms useful.
The quantitative unit measurement of electrical current.
A power supply used to provide alternate system power in the event the primary power source fails or is unable to continue providing adequate system power.
The amount of stored energy available from a battery. The battery capacity is expressed in ampere-hours or watts per cell.
The complete path of an electric current. It usually includes the source of electrical energy and the load.
The flow of electricity in a circuit as expressed in amperes.
The property of a transformer design in which the transformer contains two separate magnetic paths with limited coupling between them. The output contains a resonating tank circuit and draws power from the primary to replace power delivered to the load.
A machine, device or system that changes direct current (DC) to alternating current (AC) power.
A circuit or device designed to improve the quality of an AC line.
Any electrical device which consumes power when connected to a power source may be called by the general term of load.
A device that converts variations of current in a primary circuit into variations of voltage and current in a secondary circuit.
A system designed to automatically provide power, without delay or transients, during a period when the normal power supply is incapable of performing acceptably.
Current which varies from zero to a positive maximum to zero to a negative maximum to zero, a number of times per second, the number being expressed in cycles per second of Hertz (HZ)
A device for converting mechanical energy into electrical energy.
The strength or intensity of an electric current , measured in amperes (AMPS)
A component which changes AC voltage from the battery charge windings (within the STATOR) to DC voltage. This voltage could be used to charge a battery.
A conducting element, usually graphite and /or copper, which maintains sliding electrical contact between a stationary and a moving element.
A wire or cable designed for the passage of electrical current.
A contactor is an electrically operated switch usually used in control circuits and whose contacts are considered high amperage, compared to a relay.
The laminations in the generator constituting the magnetic structure thereof.
The metal frame that surrounds and protects the generator/engine.
The flow rate of electricity.
One complete reversal of alternating current of voltage, from zero to a positive maximum to zero to a negative maximum back to zero . The number of cycles per second is the frequency, expressed in Hertz (HZ).
A solid state device which allows current to pass in one direction only. Since it allows only one half cycle of an alternating current pass, its out put will be unidirectional and it may be considered a rectifying element.
An electric current flows in one direction only. DC is produced by chemical action (i.e. a storage battery) or by electromagnetic induction.
A Machine for converting mechanical energy into electrical energy by electromagnetic induction. A generator.
The force which causes current to flow in a conductor; in other words, the voltage potential.
Enables you to draw the full power of the generator out of one outlet.
A general name for a device that converts mechanical energy into electrical energy. The electrical energy may be direct current (DC) or alternating current (AC).
A connection, intentional or accidental, between an electrical circuit and the earth or some conduction body serving in the place of the earth.
A system that controls the idle speed of the engine in direct relation to the electrical load.
A device used to supply DC voltage to the spark plugs
An alternator with permanent magnets used to generate current for ignition in an internal combustion engine.
Unit of electrical resistance. One volt will cause a current of one flow through a resistance of one ohm.
Unit of electrical resistance. One volt will cause a current of one flow through a resistance of one ohm.
A system to safely wire your generator to your home's electrical system.
Revolutions per minute at which the set is designed to operate.
The rated voltage of an engine generator set is the voltage at which it is designed to operate.
The rated voltage of an engine generator set is the voltage at which it is designed to operate.
A device that converts AC to DC.
An electrically operated switch usually used in control circuits and whose contacts are considered low amperage, compared to a contactor.
Opposition to the flow of current.
The rotating element of a generator.
An AC load, or source of power normally having only two input terminals if a load or two output terminals if a source.
The stationary part of a generator.
A rubber device located between the engine or generator and the cradle to minimize vibration.
The unit of electromotive force. That electromotive force which when steadily applied to a conductor whose resistance is one ohm will produce a current of one ampere.
The unit of electromotive force. That electromotive force which when steadily applied to a conductor whose resistance is one ohm will produce a current of one ampere.
A component which automatically maintains proper generator voltage by controlling the amount of DC exitation to the rotor.
Unit of electrical power. In DC equals volts times amperes. In AC equals effective volts times effective amps times power factor times a consistent dependent on the number of phases. 1 kilowatt = 1,000 watts.
All the coils of a generator. Stator winding consists of a number stator coils and their interconnections. Rotor windings consist of all windings and connections on the rotor poles.
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