DC Generators Quiz

A DC generator where the field winding is powered by a separate external source, making the output voltage independent of load.

A DC generator where the field winding is connected in parallel with the armature, resulting in relatively stable output voltage.

A DC generator where the field winding is connected in series with the armature, causing voltage to vary significantly with load current.

A DC generator combining series and shunt windings, offering better voltage regulation and high starting torque.

Used in various applications like power supply, electrochemical processes, traction systems, testing, and laboratory use.

DC generators are classified by their field excitation method, into separately excited, shunt, series, and compound types.

Stable voltage, controllable output, independent of load, high cost due to external power source.

Relatively stable output voltage under varying load conditions, suitable for constant voltage applications.

Output voltage varies widely with load current, unsuitable for stable voltage applications, high starting torque.

Combination of series and shunt characteristics, offering better voltage regulation than series generators and high starting torque.

Connecting multiple DC generators to a common load, sharing the load proportionally to their capacities.

Ensuring the terminal voltages of all generators are the same before parallel connection to prevent circulating currents.

Connecting generators with the same polarity to avoid short circuits.

Distributing the load amongst the generators, based on their capacity, for efficient and balanced operation.

Connecting the armatures of generators using an equalizing bar to ensure even load sharing, especially for compound generators.

A type of DC generator where the field winding is connected in parallel with the armature, providing a relatively stable voltage.

A hybrid DC generator combining shunt and series windings, providing both stable voltage and high starting torque.

A test to measure the insulation resistance of windings, ensuring they can handle operating voltage.

Indian standard for rotating electrical machines, including requirements for the testing of DC generators.

Testing a generator without a load connected to measure no-load operation parameters.

Measures short-circuit current, voltage, and losses to determine generator parameters.

Tests generator performance under actual load conditions to measure efficiency and voltage stability.

Tests on prototypes to verify design specifications and standards.

Measures winding and core temperature rise under load.

Measures generator efficiency at different loads.

Assesses voltage stability under varying loads.

Tests generator's ability to handle sudden surges.

Checks insulation system's resistance to high voltage.

Tests generator's structural integrity and stability.

Indian standard for DC generator testing procedures.