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HANDBOOK FOR PROTECTION ENGINEERS
Introduction
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| HANDBOOK FOR PROTECTION ENGINEERS |
The ‘Hand Book’ covers the Code of Practice in Protection Circuitry including standard lead and device numbers, mode of connections at terminal strips, colour codes in multicore cables, Dos and Donts in execution. Also principles of various protective relays and schemes including special protection schemes like differential, restricted, directional and distance relays are explained with sketches. The norms ofprotection of generators, transformers, lines & Capacitor Banks are also given.
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The procedures of testing switchgear, instrument transformers and relays are explained in detail. The close and trip, indication and alarm circuits for variety of Circuit breakers indicating ferrule numbers are also included. All relevant information and circuit diagrams necessary for trouble shooting are also given.
We have more than 25 years experience, each in protective relaying and included a lot of information by way of original contribution apart from collection of useful information from a large number of reference books, manuals of manufacturers, etc. and it is hoped that this Hand Book will serve as a useful guide for all practicing Engineers.
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Table Of Contents
1. Code of Practice
1.1 Standard number for devices
1.2 Types of Panels
1.3 Protective Relay – Connection & Zones of Protection
1.4 Norms of Protection for Generator, Transformers & Lines
1.5 Current Transformers
1.6 Voltage Transformers
1.7 Energy Meters
1.8 Synchronising Panel
2. Generator and their Protection
3. Transformers and their Protection
4. Distance Relays in A.P.System, relay indications & their Meanings
5. Busbars – Arrangements & Protection
6. O/L & E/F relays
7. Circuit Breakers
8. Station Battery
9. Earthing Practices
10. Excitation & Voltage Regulation.
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HANDBOOK FOR PROTECTION ENGINEERS
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