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Switch Gear and Protection Notes JNTU | SGP Notes JNTU

Switch Gear and Protection Notes JNTU – SGP Notes JNTU of Total Complete Notes

Please find the download links of Switch Gear and Protection Notes JNTU | SGP Notes JNTU are listed below:

Link – SGP Unit 2

Link – SGP Unit 3

Link – SGP Unit 4

Link – SGP Unit 5

Link – SGP Unit 6

Link – SGP Unit 7

Link – SGP Unit 8

UNIT – I Circuit Breakers-1

Circuit Breakers: Elementary principles of arc interruption, Recovery, Restriking Voltage and Recovery voltages.- Restriking Phenomenon, Average and Max. RRRV, Numerical Problems – Current Chopping and Resistance Switching – CB ratings and Specifications : Types and Numerical Problems. – Auto reclosures

UNIT – II Circuit Breakers-2

Description and Operation of following types of circuit breakers: Minimum Oil Circuit breakers, Air Blast Circuit Breakers, Vacuum and SF6 circuit breakers.

UNIT – III Electromagnetic and Static Relays

Principle of Operation and Construction of Attracted armature, Balanced Beam, induction Disc and Induction Cup relays. Relays Classification: Instantaneous, DMT and IDMT types. Application of relays: Over current/ Under voltage relays, Direction relays, Differential Relays and Percentage Differential Relays. Universal torque equation, Distance relays: Impedance, Reactance and Mho and Off-Set Mho relays, Characteristics of Distance Relays and Comparison. Static Relays: Static Relays verses Electromagnetic Relays

UNIT – IV Generator Protection

Protection of generators against Stator faults, Rotor faults, and Abnormal Conditions. Restricted Earth fault and Inter-turn fault Protection. Numerical Problems on % Winding Unprotected.

UNIT – V Transformer Protection

Protection of transformers: Percentage Differential Protection, Numerical Problem on Design of CT s Ratio, Buchholtz relay Protection.

UNIT – VI Feeder and Bus-Bar Protection

Protection of Lines: Over Current, Carrier Current and Three-zone distance relay protection using Impedance relays. Translay Relay. Protection of Bus bars – Differential protection.

UNIT – VII Neutral Grounding

Grounded and Ungrounded Neutral Systems.- Effects of Ungrounded Neutral on system performance. Methods of Neutral Grounding: Solid, Resistance, Reactance – Arcing Grounds and Grounding Practices.

UNIT – VIII Protection against over voltages

Generation of Over Voltages in Power Systems.-Protection against Lightning Over Voltages – Valve type and Zinc-Oxide Lighting Arresters – Insulation Coordination -BIL, Impulse Ratio, Standard Impulse Test Wave, Volt-Time Characteristics.

 

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Communication system Engineering II Notes VSSUT of Total Complete Notes Please find the download links …

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