Engineering Info

 "Inverter is an electronic based device,which is used to convert direct current (DC) supply into alternating current (AC) supply." Inverters are available in       A.Single phase     B. Three phase. A.Single phase inverter :  Single phase are also "voltage source inverter" and "current source inverter" Single phase voltage source inverter   : voltage source inverter are  half  bridge and full bridge topologies.    

 "Substation is part of power system which transform voltage from high to low or low to high and distribute depend upon requirement." When the developing substation system requirement and customer requirement notice 1.System requirements : Rated voltage Rated frequency Connecting load Number of lines Generation capability  Thermal limits Tolerance in voltage Tolerance in frequency Standby capability in short circuit condition Critical faults clearing times Interconnection layout 2.Customer requirements : Depend upon the climate condition and noise produce Space requirement for construction Power quality System Reliability Availability of supply Maintability

 Exhaust fans is electrically operated device. When supply given to exhaust fan, blades of fan are rotates.  Once blades are rotate,it absorb the hot air in the room where exhaust fan fitted and released outside the room. Design of Blades : Exhaust fan blade placed in cross type to inner sides. Fig-Blades view Exhaust fans are used in household as well as industry. In the industry exhaust fan used in cooling tower to absorb the hot steam in the water. Working of exhaust fan :

Cables are used to supply electricity. Cable are used in every motor connection,controlling panel etc etc. There are different types of cables are PVC(Polyvinyl chloride) Cable,Semi Rigid-PVC, Plenum polyvinyl chloride,polyethylene,nylen etc Cable are also manufacture by current and voltage ratings Cables are available in single core,3 core, 4 core multi-core  Process for production of cables :  Bunching the copper wire as per size.Bunching increases current carrying capacity of wires. After  bunching wire is pass from nozzle, it check proper size. Polyvinyl chloride is heated as per color  required. Heated wire passed from water shower for cooling purpose. Spark test Coiling the cables Packaging cables Construction :