Torrent Power Junior Executive Engineer Interview Questions and Answers for Experienced

Capability curve of a generator shows the relationship between the electrical output and mechanical input of the generator.

• The capability curve is a graph that shows the maximum electrical output a generator can produce at different mechanical input levels.

• It helps in determining the operating limits of the generator and ensures it is not overloaded.

• The curve typically shows the maximum power output, rated power output...read more

All protection of a generator is essential to ensure its safe and efficient operation.

• Overcurrent protection to prevent damage from excessive current flow

• Overvoltage protection to safeguard against voltage spikes

• Underfrequency protection to prevent damage during frequency deviations

• Reverse power protection to prevent generator from acting as a motor

• Earth fault protection to detect ground faults and protect equipment

• Tem...read more

Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to step up or step down voltage levels in electrical power transmission and distribution systems.

• They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.

• The primary winding is connected to the input voltage s...read more

Power generation equipment includes generators, turbines, and transformers for producing electricity.

• Generators convert mechanical energy into electrical energy

• Turbines use steam, water, or wind to rotate a shaft connected to a generator

• Transformers increase or decrease voltage for efficient transmission and distribution

• Examples: gas turbines, hydroelectric generators, step-up transformers

Power formula: P = V x I, Transformer capacity/amp formula: Capacity = V x I, where V is voltage and I is current.

• Power formula: P = V x I (P = power, V = voltage, I = current)

• Transformer capacity formula: Capacity = V x I (Capacity = transformer capacity, V = voltage, I = current)