Switchgaer & Protection Lab Manuals
Experiment No.: 8 Experiment Name: Study of Vacuum Circuit Breaker (VCB) and identify different parts. Objective: To study VCB To identify different parts of VCB Theory: A vacuum circuit breaker is such kind of circuit breaker where the arc quenching takes place in vacuum. The technology is suitable for mainly medium voltage application. For higher […]
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Experiment No.: 7 Experiment Name: Study of different lightning arrester and identify different parts. Objective: To study of different lightning arrester To identify different parts of it Theory: A lightning arrester is a device used on electric power transmission and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning. The typical lightning arrester has a high-voltage terminal and a ground terminal.
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Experiment No: 6 Experiment Name: Identify various components of different switchgears: A. Circuit Breaker [: i) LT air circuit breaker; ii) Minimum Oil Circuit Breaker; iii) Air Blast Circuit Breaker; iv) SF6 Circuit Breaker; v) Vacuum Circuit Breaker] B. Isolator [vertical break, horizontal break] C. CTs and PTs D. Power and distribution Transformers and write
Experiment No.: 5 Experiment Name: Testing of Induction Type Over Current Relay using Relay Testing Kit to Plot the Inverse Characteristics. Theory: A non-directional heavily damped induction disc relay which has an adjustable inverse time/current characteristic with a definite minimum time. The relay has a high torque movement combined with low burden and low overshoot.
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Experiment No: 4 Experiment Name: Testing of Percentage Differential Protection of Transformer using Electromagnetic Type Transformer Differential Relay. Objective: To test Percentage Differential Protection of Transformer using electromagnetic type Transformer Differential Relay. To plot a graph between relay operating current and tripping time. Theory: Principle of Differential Protection scheme is one simple conceptual technique. The
Experiment No.: 3 Experiment Name: Demonstration of the operation of single phasing preventer by creating single phasing fault for a given 3-ph induction motor with D.O.L. starter. Objective: To demonstrate the operation of single phasing preventer by creating single phasing fault for a given 3-ph induction motor with D.O.L. starter. Theory: A 3 phase motor
Experiment No.: 2 Experiment Name: Testing of static Overcurrent protection relay using Relay Testing Kit. Objective: To test static overcurrent protection relay using Relay Testing Kit. Theory: The overcurrent relays, even though simplest of all types of electromechanical relays, are the most difficult static relays. This is because the induction disc characteristics of the overcurrent
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Experiment No.: 1 Experiment Name: Dismantle MCCB/ELCB/ RCCB and Identification of Various Parts Objectives: To dismantle MCCB, ELCB, RCCB To identify different parts Theory: 1. MCCB: Molded Case Circuit Breaker or MCCB is an automatic electrical device. It is a type of circuit breaker that protects the circuit from overloading, short circuit and current surges. It
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