Table of Content
 

Capacitors
  • Construction
  • Function
  • How a capacitor stores charge
  • Capacitance
  • Unit of capacitance
  • Sub units of a farad
  • Factors determining capacitance
  • Area of the plates
  • Distance between the plates
  • Type of dielectric material
  • Temperature
  • Types of capacitors
  • Fixed capacitors
  • Ceramic capacitors
  • Mica capacitors
  • Electrolytic capacitors
  • Electrolytic capacitors are available in two types
  • Paper / plastic capacitors
  • Air capacitor
  • Trimmers and padders
  • Varactors
  • Short circuited in capacitors
  • Open capacitors
  • Leaky capacitor/ leakage resistance
  • Checking capacitors
  • Capacitor action –normal resistance test
  • Charging- holding test on capacitors

Table fan – terms –types of motors- winding details – data to be collected

  • Table type fan
  • Rated voltage
  • Rated speed
  • Blade sweep
  • Winding shaded pole type table fan
  • Ca0pacitors motor
  • Procedure of preparing winding table for capacitor type table fan
  • Splitphase means there are two phases
  • Determine the winding table for the arrangement of coils
  • Winding capacitor type table fan

Method of connecting and connection group connection terminal leads

  • Method of coil connections
  • Method of lead connection
  • Testing of windings
  • Continuity test
  • Internal gowler method
  • Voltage drop method
  • Ohmmeter method
  • Ground test and insulation
  • Magnetic compass method
  • Two screwdrivers method
  • No load test

Insulating vanish and vanishing process in electric machine

  • Type of varnish
  • Baking varnish
  • Thermosetting
  • Solvent less varnishes
  • Varnish thinners
  • Preheating
  • Varnishing process
  • Vanish sripping
  • Impregnation
  • Varnish stripping

Capacitor- start induction motor

  • Construction and working
  • Reversing the direction rotation
  • Characteristics
  • Application
  • Capacitors used in single phase motors
  • Method of testing capacitors
  • Charge discharge test
  • Ohmmeter test
  • Capacity test
  • Insulation test on capacitors

Capacitors start capacitor motors

  • Method of testing capacitors
  • Charge discharge test
  • Ohmmeter test
  • Capacity test
  • Insulation test on capacitors

Capacitors start capacitor run motors

  • Permanent capacitor motors
  • Capacitor start capacitor run

Universal motor

  • Characteristic and application
  • Speed control of universal motor
  • Series resistance or applied voltage control method

Electric drills

  • Light duty drill
  • Heavy duty drill
  • Acessories
  • Drill sizes
  • Drill bits
  • Electric drill maintance
  • Drill safety

Ginders

  • Selecting  a grinder
  • Grinding wheels

Electric hammers

  • Types of hammers
  • Operating electric hammers

Circular saws

  • Using the circular saw
  • Circular saw blades
  • Angular cutting
  • Plunge cutting

Electric sanders

  • Sanders
  • Installing a sanding belt
  • Using the balls sander
  • Pad  sanders
  • Loading the sander
  • Using the pad sander
  • Disk sanders
  • Using the disk sanders

Linear motion saws

  • Saber saw baldder

Maintenance procedure for DC machine

  • Preventive maintance
  • Planned maintanace
  • Necessity of preventive maintance and its importance
  • Daily machine
  • Weekly maintenance
  • Monthly maintenance
  • Half yearly maintenance
  • Annual maintenance
  • Records
  • Maintance card

Apply for Certification

https://www.vskills.in/certification/Vskills-Certified-Electrical-Power-Tool-Mechanic