Generators

Generators

the device which converts mechanical to electrical.

Generators

they’re connected directly to your building’s electrical panel and powered by external fuel supply such as natural gas, liquid propane, or diesel.

principles of working

in generators mechanical energy is transformed into electrical energy.

1. coil

2. Magnet

two main parts of generator

engine

generator set which consist of an engine coupled with a generator that it drives.

transfer switch

the component in the emergency and standby power system that transfers power from the normal power source to the alternate source when the normal source of power fails.

battery system

the reliability is paramount in emergency and standby power applications. A common of engine generator set failure to start is a battery failure.

fuel storage and pumping system

a typical system consists of a day tank and a bulk storage tank.

air supply and exhaust

means of providing a unimpeded flow of fresh outside air into the generator is necessary.

petrol engine

available from several hundred watts to about 100 kW. Smaller sets use two- and four- cycle high speed, lightweight engines. Larger sets use multiple cylinder engines built for automobiles and trucks.

diesel engine

available for just 100 kW to 10,000 kw. it is a sets are rugged dependable and most suitable for continuous duty. the fire and explosion hazard is considerably lower than gasolines.

gasoline engine

available up to 10,000kw. ther compact and lightweight compared to the other prime movers making them suitable location and mounting in restricted spaces on roofs of buildings.

controls

both engines and the generator require panels for displaying operating conditions.

faraday’s law

generator works on ________ of electromagnetic introduction.

Michel Faraday and Hippolyte Pixii

Pioneers who invented early machines like generator.

Electrostatic generators

they are never used for commercial power generation and were left due to inefficiency and difficulty.

dynamos

use electromagnetic principles to convert mechanical rotation into pulsating direct electric current through use of a commutator.

Alternators

in 1886 1st public demonstration of the system

AC generator and DC generators

according to output generators are of two types _______ and ___________.

engine generators

mainly used generators are _______________.

Gensets

engine generators are also known as ________________________.

1. Standby Generators

2. Portable Generators

3. Commertial Generators

types of generator can be classified into 3 main types

Standby generators

theses are large, often permanent units often stationed outside a building and like to provide backup power in case the electricity switches off.

Standby generators

they can sense when a power interruption has occurred and automatically start to provide emergency power

portable generator

these generators are designed to be transported whether on cart trailer or by hand where there is no utility power

portable generator

they are capable of providing up to 1000 kilowatts of power. they use either diesel natural gas, gasoline or propane as fuel.

commercial generators

in areas where power supply is intermittent or lacking as THIRD WORLD provincial areas, generators can also be set up to provide additional power.