Generator Synchronization

The Generator is electrical generator which produce AC or dc power. The synchronization phenomena is mostly considered for the ac power generators or alternators.  Synchronization is to match the frequency, voltage and phase angle of the two or more working generators and for three phase, phase sequence. In practical mostly used and simplest method is lamp testing. In this method one lamp or bulb is inserted between two alternators phases. the lamp must be between the Generator and line phases RYB simultaneously. When the bulb is on, it means generators are not synchronized and you have to change the speed of alternator for synchronization. if bulb is off then your alternator is synchronized.

The other method is  sync meter which do the same work by digitally or analog measuring the voltage and frequency of both alternators or alternator and line.

 

The things always keep in mind for the synchronization are:

 

RMS voltage,

Frequency,

Phase angle,

and phase sequence.

 

These all things are matched when your frequency is matched if both of the alternators are, of same capacity or rating.

The rating is different then there may be difficulty in synchronization but can be synchronized. The synchronization of Alternators are always done by change the speed or Alternators for same design frequency and voltage. Synchronization is mostly done on power plants for adding the new upcoming generator in line.

Alternating current

Alternating current or AC current is which changes its magnitude and direction at every moment. AC current may have different shapes as like sinusoidal, saw tooth, square wave etc. Mostly used in power system is sinusoidal for AC current and voltage. AC current is produced by generators or Alternators. AC current used in power system is in mostly 50hz or 60 hz.

Actuator

Actuator is a arm, coil, or something like this which converts one energy to mechanical energy for releasing or closing gas or liquid. in other words we can say it is a type of special motor.  The actuator can be electrical biased, mechanical biased, thermo biased, hydraulic biased or pneumatic biased.

Electrical Biased Actuator: electrical biased actuators are solenoids which are used to control flow, it can be fluid or pneumatic flow. solenoid also control electrical energy.

Mechanical Biased Actuator: Mechanical biased actuators are hydraulic or pneumatic cylinders which control the flow of fluid or compressed air.

Thermo Biased Actuator: Actuators which are actuated by thermally or magnetically are called thermo biased actuators. 

AC adapter

AC adopters are basically rectifiers which convert AC power to DC power on different voltage and current levels. Actually ac adopters are external power supplies with AC plug in. these adopters can be of different voltage levels of input as 110v ,220v.230v etc. The power of these adopter may vary from mille watt  to mega watts. Adopter may have out pins or as USB plugs. with different companies it has different style and shape. AC adopter may have output voltage 3v,6v,9v,12v,19v,24v etc according to requirement with different current ranges. The current ranges vary from mille amps to kilo amps. For working of Ac adopter refer to the Rectifiers.