Haier Appliances India Mechanical Maintenance Engineer Interview Questions and Answers

The neutral wire and grounding serve different purposes in electrical systems.

• The neutral wire carries current back to the source in a balanced electrical circuit.

• Grounding provides a path for electrical faults to safely discharge into the ground.

• Neutral wire is typically connected to the center tap of a transformer, while grounding is connected to the earth.

• Neutral wire is part of the normal current-carrying circuit, ...read more

Wire current capacity can be calculated using the wire gauge and the maximum current rating of the wire.

• Determine the wire gauge

• Refer to the maximum current rating chart for the wire gauge

• Consider the length of the wire and the ambient temperature

• Use the appropriate formula to calculate the current capacity

The electrical power in my area is provided by XYZ Power Company.

• XYZ Power Company is the main provider of electrical power in my area.

• They have been providing reliable power supply for many years.

• Their customer service is also very responsive and helpful.

• Other smaller companies also provide power in some areas, but XYZ is the most prominent one.

To troubleshoot a transformer, check for physical damage, measure voltage and current, and test insulation resistance.

• Inspect for any physical damage or loose connections

• Measure the voltage and current on both the primary and secondary sides

• Test the insulation resistance using a megohmmeter

• Check for any abnormal noises or overheating

• Verify that the transformer is properly grounded

• Compare the measured values with the ma