tailieunhanh - Switchgear and protection

The document Switchgear and protection present: protective relaying; electromagnetic relasys; differential protection; distance protection; generator protesction; induction motor protection; transformer protection; carrier aided protection and static relays; theory of arc quenching; circuit breakers; power system earthing; protection against overvoltage. Invite you to refer. | Protection and Switchgear u. A. Bakshi M. V. Bakshi Technical Publications Pune Table of Contents Chapter-1 Protective Relaying 1-1 to 1-34 1 1 Introd I irtinn 1-1 Functions of Protective 13. Protective Zcnes. 1-2 Primary and Backup Concept of Backup Relaying .ra Methods al Backup Protection . . .1-6 Nature and Causes Qf Faults. Fault Current Calculation using Symmetrical Essential Qualities of Protective Refcabiily. . . 1-11 SeieaMty and Dtolmlnafon. 1-12 Speed and Tro. 1-13 SenaSbty. 1-13 Stability . 1-14 17 7 Simplicty and Economy . 1-14 Classification of Protective 1 8 1 Electromagnetic Attraction Type Relays. 1-15 Induction Type Relays. . . MS 3 Directional Type Relays. .1-16 Relays Bated on Timing. 1-16 1 8 5 Distance Type Relays . . . 1-16 Differential Type Relays . . .1-16 1 8 7 Other Types of Relays. 1-17 19 Terminologies used In Protective 110 Instrument Transformers. .L2J Current Transformers . .1-21 ----1111 Working Principle. . . T71 Construction of Current Transformers. Wound Type Current Transformer 4 U2 Bar Type Cunent 1 13 Why Secondary of C T. Should not be Qpan .1-24 1 14 Potential Transformers . .1-25 ----vx Comparison of C T. and Errors in lhe Instrument Transformer. .1-28 1 16-1 . 1-2S Phase Angle Error. 129 1 16 3 Reduction of Ratio and Phase Angie Errors. 1-31 Advantages and Disadvantages of Instrument Review Chapter-2 Electromagnetic Relays 2-1 to 2-32 Introduction___________________________________________________________________2d Basic TnpC cu Operation. 2-1 Auxfary Tripping Schemes in Circuit Relays wth Maks Type Relay with Break Type Contact. . 24 .

• Điện - Điện tử
• Protection and switchgear
• Power system earthing
• Protection against overvoltage
• Electromagnetic relasys
• Differential protection; Distance protection