Renewsys India Mechanical Technician Interview Questions and Answers

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

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

• 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 source, while the...read more

Transformer parts are essential components that help in the functioning of a transformer.

• The core is the central part of a transformer that is made of laminated sheets of iron or steel.

• The windings are the coils of wire that are wrapped around the core and carry the electrical current.

• The insulation is used to separate the windings and prevent electrical arcing.

• The tap changer is a device that allows for the adjustment...read more

To get rid of dry soldering, you can try reflowing the solder, cleaning the surface, using flux, or replacing the solder altogether.

• Reflow the solder by applying heat to melt and reflow the dry solder joints.

• Clean the surface by removing any dirt, oxidation, or contaminants that may be affecting the soldering process.

• Use flux to improve the wetting and flow of the solder, making it easier to create strong and reliable ...read more

I can maintain and operate a variety of machines.

• I have experience maintaining and operating industrial machinery such as conveyor systems, packaging machines, and hydraulic presses.

• I am skilled in troubleshooting and repairing electrical and mechanical issues in machines.

• I can also operate heavy machinery like forklifts and cranes.

• I am familiar with following maintenance schedules, conducting inspections, and performi...read more

I will isolate the transformer and investigate the cause of the differential trip.

• Isolate the transformer from the system

• Check the differential relay settings and wiring

• Inspect the transformer for any physical damage or oil leaks

• Check the oil level and quality

• Investigate the cause of the differential trip

• Take corrective actions to prevent future trips