Electrical Adda

          Capacitor Bank      Capacitor bank can be connected in LT or HT side    In   Industries it is connected in HT side due to High rated motors   installed and requirement of Reactive power is more.   Where as in commercial Buildings Capacitor banks of smaller capacities are placed in LT room .          Why we need Capacitor Bank?     Capacitor Bank improves power Factor gives Leading PF, helps   industry from getting low PF penalties from Electricity Board.     Reduces losses.       Improves motor performance.     P= V I cosǾ, PF inversely proportional to voltage & current.  HT Capacitors in Industrial Sector   In industries HT Capacitors are used & are placed at Switchyard.   HT capacitors placed in between Series reactor & Residual voltage Transformer.    ...

STANDARD VOLTAGES: VOLTAGES (KV) VOLTAGE LEVELS VOLTAGE REGULATION 3.3 , 6.6 ,11KV LOW VOLTAGE   (LV)     +- 6% 22 , 33 , 66 KV HIGH VOLTAGE   (HV)      +- 9% 110, 132 , 220 KV EXTRA HIGH VOLTAGE (EHV)    +-12.5% 400 ,765,1000KV ULTRA HIGH VOLTAGE (UHV)    +- 15% FREQUENCY VARIATION = +- 3% ( 48.5 – 51.5 HZ )

POLE- MOUNTED DISTRIBUTION TRANSFORMER      Front view of pole mounted transformer with all electrical Equipments.   The 11KV Distribution line surpasses all the Electrical Equipment's Transformer finally steps down voltage to 440V and distributes to domestic consumers. SIDE VIEW OF DISTRIBUTION TRANSFORMER

Transmission line consists of  1)  STRAY  INSULATOR 2) LIGHTNING ARESSTOR 3) COUPLING CAPACITOR 

Different Levels of 3 Phase & Single PhaseVoltages Voltage Levels 3 Phase Voltage   1 Phase Voltages Maximum System Voltage                   440V           254V Highest System Voltage                   433V            250V Normal System Voltage                   415V           240V Normal System Voltage                   400V           230V Minimum System Voltage ...

Cable Gland Sizes for Different Cable Sizes   CABLE     SQMM      Cable Gland Size         (mm) 1.5 12 1.5 16 2.5 19 4 22 6 22 10 25 16 28 25 32 35 32 50 35 70 38 95 45 120 45 150 50 185 50 240 57 300 63 400 70 630 100