Electrical Geeks

Introduction: In HT electrical distribution, the system can be earthed or unearthed. The selection of earthed/unearthed cable will depend on system. If distribution system is earthed then we have to use cable which is manufactured for earthed system. (Which the manufacturer specifies). If the system is unearthed then we need to use cable which is manufactured for unearthed system. The unearthed system requires high insulation level compared to earthed System. For earthed and unearthed XLPE cables, the IS 7098 part2 1985 does not give any difference in specification. The insulation level for cable for unearthed system has to be more. Earthed System:            Earlier the generators and transformers were of small capacities and hence the fault current was less. The star point was solidly grounded. This is called earthed system. In Three phases earthed system, phase to earth voltage is 1.732 times less than phase to phase ...

  main difference: " Capacitor is a device that is used to store an electric charge. It is basically an arrangement of conductors. A capacitor stores electrical energy directly due to the creation of an electrostatic field which is created between two metal "plates". Battery is a device that consists of electrochemical cells that convert stored chemical energy into electrical energy."   CAPACITOR   A capacitor consists of two conductors which are separated by a dielectric medium.  It stores electrical charge and is capable of discharging it whenever required. It blocks Direct Current (DC) and allows Alternating Current (AC) to pass through it. Therefore, they are widely used to  extract AC components from DC + AC components.  It is basically an arrangement of conductors.  Capacitors are widely used in electrical circuits as energy-storage devices. Capacitors are capable of storing elec...