Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

Acoustic canopy 
A special enclosure equipped with acoustic isolating elements, built to cover noisy machines (generator, etc.), in order to significantly reduce the noise level measured in the close surrounding. ORKAL is a leading company in developing and manufacturing of acoustic canopies.

Acoustic container 
A container that was equipped with acoustic isolating elements, to be used as housing for noisy machines, in order to significantly reduce the noise level measured in the close surrounding.

Alternator 
A machine that convert rotary mechanical energy to electric energy.

Ampere-Hour 
A measure of electric charge or battery energy capacity (current flow over time). One ampere-hour (or amp-hour or Ah) means a current of one ampere running for one hour. Multiplying the current by the running time, indicates the AH value.

AC output
Alternating current. The current output is in wave form, where the amplitude fluctuates between specific ±value.

C

Circuit breaker
A protection device that cuts the current flow when the current exceeds a specific level. 

Coolant
A liquid used as heat conveying element, in engine cooling system based on radiator.  

Control panel
A panel dedicated to control and monitor the performance of electric power source. The panel integrates command and control devices and switches, parameters indicators, monitor etc.  

 

D

DC output
Direct current. The current output is in a specific stable value (not alternating)

Decibel
A measure that indicate noise level, marked as dB. Examples: Average ambient noise level in urban surrounding is about 60 dB, disco music noise level can reach 110-120 dB and jet engine noise can reach 140 dB at range of 30m. Safety & health regulations, restrict the maximum allowed noise level in working places as well as time of stay (in Israel 85 dB for no longer than 8 hours). 

 

E

Electro magnet
A kind of magnet in which its magnetic field is created by an electric current running in a coil around a metal core. 

Electric energy power (W)
A measuring unit for electric energy power usually indicated as Watt. In physics terms, one watt is one Joule of energy transferred or dissipated in one second. Electrical power is calculated as: Watts = Volts x Amps x Power Factor The power factor can be disregarded for DC circuits or for AC circuits with a resistive load (it is 1 in those situations).

Electric resistance- Ohm
The measure of the resistance to current flow that a conductor creates. One Ohm unit is the voltage needed in order to produce one Ampere on the specific conductor. The resistance is affected by the following parameters: Temp, cross section area, conductor length and conductor material. 

Electronic voltage regulator
An electronic devise that control the generator voltage output so to be constant and stable. The voltage regulation is done by controlling the excitation current at the alternator. 

Electric board
A central electric circuit board, dedicated to distribute the electric energy power provided by one or more sources, to one or more consumers. The electric board also integrates safety and protection elements as well as command and control devices. 

Electric frequency
The number of cycles per second, of AC power source wave. 

Electrolyte
The material used in battery for transmission of electric charge. The material includes free ions. The most common used electrolyte is based on a liquid solution.

G

Grounding
Electrical connection to earth. By this connection, the grounded point, will have the same electric potential as earth, namely any current at the grounded point will flow to the ground and not to any other direction. Grounding is mainly used for safety reasons to prevent electrocution, and for other electronic circuit needs.  

M

Mechanical RPM regulator
A mechanical device that control the generator RPM so to be constant and stable. The device regulates the fuel supply to the engine, as per the sensed change in the engine revolution. The mechanism is based on rotating weights that by using centrifugal force control the fuel valve. The regulator can be pre adjusted to get the proper RPM.

P

Phase
The appearance of the electric current in AC power source. 

R

Rectifier
An electronic devise that convert AC current to DC current. 

S

Synchronization (electric)
A special electric circuit, that enables to optimize the output of combine AC sources, by smart coordination between the phases of the several sources. Electric synchronization is must when several generators are used as a combined source or when a generator and the main are used as combined source. 

T

Three phase electric source
Electric energy source, that produces in the same time 3 parallel equal AC outputs, where there is a gap of 1200 between each of the 3 phase appearance.   

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