Electrical Articles & Notes

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=All Electrical Notes Published on www.electricalnotes.wordpress.com site.
=3 No's of Volume,Total 1000 Pages (more than 159 Topics) in PDF format with watermark on each Page.
=soft copy in PDF will be delivered.

Part-1 :Electrical Quick Data Reference:
Part-2 :Electrical Calculation
Part-3 :Electrical Notes:

Part-1 :Electrical Quick Data Reference:
1 Measuring Units 8

2 Electrical Equation 9

3 Electrical Thumb Rules 12

4 Electrical Cable & Overhead Line Bare Conductor Current Rating 14

Electrical Quick Reference

5 Electrical Quick Reference for Electrical Costing per square Meter 22

6 Electrical Quick Reference for MCB / RCCB 27

7 Electrical Quick Reference for Electrical System 33

8 Electrical Quick Reference for D.G set 42

9 Electrical Quick Reference for HVAC 48

10 Electrical Quick Reference for Ventilation / Ceiling Fan 58

11 Electrical Quick Reference for Earthing Conductor / Wire / Strip 65

12 Electrical Quick Reference for Transformer 75

13 Electrical Quick Reference for Current Transformer 84

14 Electrical Quick Reference for Capacitor 86

15 Electrical Quick Reference for Cable Gland 89

16 Electrical Quick Reference for Demand Factor-Diversity Factor 91

17 Electrical Quick Reference for Lighting Density (W/m2) 98

18 Electrical Quick Reference for illuminance Lux Level 106

19 Electrical Quick Reference for Road Lighting 137

20 Electrical Quick Reference for Various illuminations Parameters 146

21 Electrical Quick Reference for IP Standard 163

22 Electrical Quick Reference for Motor 165

23 Electrical Quick Reference O/L Relay , Contactor for Starter 167

24 Electrical Quick Reference for Motor Terminal Connections 178

25 Electrical Quick Reference for Insulation Resistance (IR) Values 180

26 Electrical Quick Reference for Relay Code 191

27 Standard Makes & IS code for Electrical Equipment’s 198

28 Quick Reference for Fire Fighting 202

29 Electrical Quick Reference Electrical Lamp and Holder 214

Electrical Safety Clearance

30 Electrical Safety Clearances-Qatar General Electricity 223

31 Electrical Safety Clearances-Indian Electricity Rules 225

32 Electrical Safety Clearances-Northern Ireland Electricity (NIE) 229

33 Electrical Safety Clearances-ETSA Utilities / British Standard 232

34 Electrical Safety Clearances-UK Power Networks 233

35 Electrical Safety Clearances-New Zealand Electrical Code (NZECP) 234

36 Electrical Safety Clearances-Western Power Company 236

37 Electrical Safety Clearance for Electrical Panel 237

38 Electrical Safety Clearance for Transformer. 239

39 Electrical Safety Clearance for Sub Station Equipment’s 241

40 Typical Values of Sub Station Electrical Equipment’s. 246

41 Minimum Acceptable Specification of CT for Metering 250

Abstract of Electrical Standard

42 Abstract of CPWD In Internal Electrification Work 252

43 Abstract of IE Rules for DP Structure 257

44 Abstract of IS: 3043 Code for Earthing Practice 259

45 Abstract of IS:5039 for Distribution Pillars (<1KV AC & DC) 261

46 Abstract IS: 694 / IS:1554 / IS: 11892 for Cable 262

47 Abstract IS:15652 for Insulating Mat / IS: 11171 for Transformer 264

48 Abstract IS: 1678 / IS:1445 265

49 Abstract IS: 1255 for Cable Rote &Laying Method of Cable 266

50 Abstract IS: 5613 for HV Line 268

51 Abstract of Indian Electricity Rules (IE Rules) 273

Part-2 :Electrical Calculation:

Chapter Description Page No

1 Calculate Number of Earthing Pits for System 277

2 Calculate Size of Cable for Motor as per National Electrical Code 283

3 Calculate Transformer Protection as per National Electrical Code 285

4 Calculate over current Protection of Transformer (NEC 450.3) 287

5 Calculate Size of Contactor, Fuse, C.B, O/L Relay of DOL Starter 292

6 Calculate Size of Contactor, Fuse, C.B, O/L Relay of Star-Delta Starter 294

7 Calculate Transformer Size & Voltage Drop due to starting of Single Large Motor 297

8 Calculate TC Size & Voltage Drop due to starting of multiple no of Motors 298

9 Calculate Voltage Regulation for 11KV, 22KV, 33KV Overhead Line ( REC) 299

10 Calculation Technical Losses of Distribution Line 302

11 Calculate Cable Size and Voltage Drop of HT / LV Cable 304

12 Calculate IDMT over Current Relay Setting (50/51) 307

13 Calculate Size of Capacitor Bank / Annual Saving & Payback Period 309

14 Calculate No of Street Light Pole 312

15 Calculate No of Lighting Fixtures / Lumens for Indoor Lighting 314

16 Calculate Street Light Pole Distance &Watt Area 315

17 Calculate Short Circuit Current (Isc) 316

18 Calculate Size of Bus bar for Panel 320

19 Calculate Size of Cable Tray 325

20 Calculate Size of Diesel Generator Set 327

21 Calculate Size of Main ELCB & Branch MCB of Distribution Box 330

22 Calculate Size of Solar Panels 335

23 Calculate Size of Inverter & Battery Bank 337

24 Calculate Cable Trunking Size 341

25 Calculate Size of Conduit for Cables / Wires 342

26 Calculate Cable Voltage Drop for Street Light Pole 343

27 Calculate Lighting Protection for Building / Structure 346

28 Calculation Size of Pole Foundation & Wind Pressure on Pole 349

29 Calculation of Flood Light, Facade Light,Street Light and Signage Light 351

30 Calculate Size of Neutral Earthing Transformer (NET) 358

31 Calculate Transformer Regulation & Losses (As per Name Plate) 360

32 Calculation of Crippling (Ultimate Transverse) Load on Electrical Pole 362

33 Calculate Size of Circuit Breaker Fuse for Transformer (As per NEC) 364

34 Calculate Size of Ventilation Fan 366

35 Calculate Motor-Pump Size 368

36 Calculate Lighting Fixture’s Beam Angle and Lumen 369

Part-3 : Electrical Notes:

Chapter Description Page No

Motor & Starter

1 Direct On Line Starter 372

2 Star-Delta Starter 377

3 Motor Number Plate Terminology 383

Transformer

4 Three Phase Transformer Connection 385

5 Vector Group of Transformer 401

6 Difference between Power Transformer & Distribution Transformer 414

7 Parallel Operation of Transformers 415

8 Various Routine Test of Transformer 422

9 Standard Transformer Accessories & Fittings 436

10 Basic of Current transformers 450

Lighitng Luminars

11 Selection of Lighting Luminaries 466

12 Different Type of Lamps and Control Gear 480

13 What should you know before buying LED Bulbs 494

14 Type of Lighting Bulb Base & Socket 503

15 Type of Lighting Bulb Shape & Size 510

16 What is Fixture’s Beam Angle & Beam Diameter 534

17 Difference between High Bay and Low Bay Flood Light 538

18 Various Factor for illumination Calculation 545

19 How to design efficient Street Light 552

Cables

20 Cable Construction & Cable Selection 579

21 Difference between Unearthed & Earthed Cables 588

22 Low Voltage and High Voltage Cable Testing 590

23 EHV/HV Cable Sheath Earthing 593

24 HIPOT Testing 601

25 Type of Cable Tray 604

26 Type of Cable Glands 608

27 Cable Tray Size as per National Electrical Code-2002, Article 392 612

28 Method for Instalaltion of Cable & Wire 614

29 Method for Instalaltion of Cable Tray 625

30 Method for Instalaltion of Conceal & Surface Conduits 635

Earthings

31 Method for Instalaltion of Earthing Strip / Wire 643

32 What is Earthing 651

33 Difference between Bonding, Grounding and Earthing 656

34 Method of Earth Resistance Testing 659

MCB / MCCB / Fuse / Relay / Panels

35 Working Principle of ELCB / RCCB 673

36 Difference between MCB-MCCB-ELCB-RCBO-RCCB 677

37 What is Correct Method of MCB Connections 680

38 Type of MCB & Distribution Board 683

39 Type and Specification of Fuse 688

40 How to Select MCB / MCCB 701

41 Tripping Mechanism of MCCB 709

42 Setting of over Load, Short circuit & Ground Fault Protection of MCCB 714

43 Types and Revolution of Electrical Relay 720

44 Method for Instalaltion of DB or Panel 738

Electrical Questions & Answers

45 Electrical Questions & Answers 747

Power Distributions & Transmissions

46 Type of Electrical Power Distribution System 770

47 Impact of Floating Neutral in Power Distribution 776

48 Total Losses in Power Distribution & Transmission Lines 781

49 Single Earthed Neutral and Multi Earthed Neutral 787

50 Types of Neutral Earthing in Power Distribution 790

51 Effects of unbalanced Electrical Load 799

52 Vibration Damper in Transmission Line 805

53 What is Ferranti Effect 808

54 What is Corona Effect 810

55 Harmonics and its Effects 818

56 What is Demand Factor-Diversity Factor-Utilization Factor-Load Factor 828

57 Guideline of Design Electrical Network for Building / Small Area. 837

58 Type-Size- Location of Capacitor in Electrical System 839

59 Types of Overhead Conductors 848

60 What is Power Factor 856

61 11KV/415V over Head Line’s Specification as per REC 863

62 Analysis the Truth behind Household Power Savers 876

63 How Reactive Power helpful to maintain a System Healthy 879

64 Effects of High Voltage Transmission Lines on Humans and Plants 886

65 How to save Electrical energy at Home 892

Lighting Arrester / Inverter / UPS

66 Type of Lighting Arrestor 895

67 Selection of Surge Protective Device (SPD) 904

68 Selection of Various Types of Inverter 915

69 Selection of Various Types of UPS 925

Fire Fighting / HVAC

70 Method of Statement for HVAC System 933

71 Method of Statement for Fire Fighting Works 954

72 Method for Wrapping Coating & Holiday Test for Fire Fighting Pipe 964