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Installation

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Installation

  1. 1. ELECTRICAL TECHNOLOGYElectricity is not a fun but easy to learn.
  2. 2. Prepared by, Mr. Vijay Balu RaskarCHAPTER NUMBER NAME OF CHAPTER (Polytechnic)1 D.C. CIRCUITS2 A.C. FUNDAMENTALS3 SINGLE PHASE AC CIRCUITS4 THREE PHASE AC CIRCUITS5 SINGLE PHASE TRANSFORMERS6 D.C.MOTORS7 FRACTIONAL HORSE POWER MOTORS8 INSTALLATIONS,EARTHING AND TROUBLE SHOOTING9 DIFFERENT TYPES OF MOTORS
  3. 3. PROTECTION Fuse HRC-Fuse MCB MCCB ELCB
  4. 4.  FUSE •There are two types. 1. Rewirable / semi- enclosed type 2. HRC type fuse
  5. 5. HRC FUSE
  6. 6. Operation of Circuit Breaker (See the Circuit Diagram on Black Board)
  7. 7. Rating of MCB Up to 100A Braking Capacity:- 3KA Rating of MCCB Up to 1600A Braking capacity:- 85KA Rating of ELCB 30mA for Domestic 100mA for Industrial300mA for Higher Leakage
  8. 8. EARTHING 1.Plate Earthing 2.Pipe Earthing
  9. 9. PLATE EARTHINGMaterial :- Any metalEarth Plate:- 60CM X 60CM X 3.18mmGalvanized Plate:- 90CM X 90CM X6.35mm.With Layer of salt & coke (Alternate).Layer thickness will be 15CM in deep
  10. 10. PIPE EARTHINGGalvanized iron pipe is used.Diameter is not less than 38.1mm and2m in length for ordinery soil and2.75m for dry.At top funnel fill with salty water.
  11. 11. TROUBLE SHOOTINGIt is the process of detecting faults in the circuit. Instruments:- Megger, Tester, Multimeters, test lamp etc.
  12. 12. THANKS YOU

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