[Pdf] VSSUT SGPD Notes – Switch Gear and Protective Devices Notes PDF Free Download

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Switch Gear and Protective Devices Notes VSSUT – SGPD Notes VSSUT of Total Complete Notes

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Switch Gear and Protective Devices Notes, Switch Gear and Protective Devices pdf, SGPD pdf, SGPD notes, Switch Gear and Protective Devices Notes pdf free download
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Switch Gear and Protective Devices Notes VSSUT – SGPD Notes VSSUT

Module – 1

Protective Devices: Philosophy of protection, Nature, Causes and consequences of faults,

Zone of protection, Requirements of a protective scheme, Basic terminology components of protection  scheme,

Relay classification, Principle of different types of electromagnetic relay. General equation of phase and magnitude comparators,

Duality of comparators, Electromagnetic relays, over current relays Directional relays,

Distance relay- impedance, Reactance and Mho type, Differential relays.

Link: Module 1 – Switch Gear and Protective Devices Notes

Module – 2

Feeder: Protection: Over current and earth fault protection, Distance protection, Pilot wire protection,Carrier current protection,

Generator Protection: Biased differential protection, restricted earth fault protection, Field suppression,Negative sequence protection, Earth fault detection in rotor circuit,

Power transformer Protection: Biased differential protections, restricted earth fault protection, Buchholz relay Protection of combined transformer and alternator,

Bus Zone Protection: frame leakage and circulating current scheme-use of Translay relay.

Link: Module 2 – Switch Gear and Protective Devices Notes

Module – 3

Circuit Breakers: Formation of arc during circuit breaking. Characteristics of electric arc. Theories of arc Interruption,

Recovery and restriking voltage, interruption of capacitive and inductive currents,

Current chopping. Principle of A.C. and D.C. circuit breaking requirements of good circuit breaker circuit  breaker rating,

Different types of circuit breakers. Air break and Air blast circuit breaker. Plain break and controlled break all circuit breakers,

Minimum oil circuit breakers. Vacuum circuit breaker, SF6 circuit breaker,D.C. Circuit breaker,

H.R.C. Fuse: Construction and characteristics .

Link: Module 3 – Switch Gear and Protective Devices Notes

Module – 4

Static Relays : Development and classification of static relays, Different types of phase and amplitude capacitors,

Basic static relays used in protective scheme, Elementary idea about digital & numerical
protection,

Testing and maintenance of protective gear, Protection against surge-surge absorber, Surgediverter,
Arrangement of Bus bar, Circuit breaker and isolator. Current limiting reactors in power system and their arrangement calculation of fault MVA for symmetrical short circuits. Circuit breaker capacity.

Link: Module 4 – Switch Gear and Protective Devices Notes

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