Maa Shailja Electrical & Instrument Service Interview Questions, Process, and Tips

FLP glands of LT cable are flameproof glands used to secure cables in hazardous areas. They are defined by their parts and IS code.

• FLP glands are used to secure LT cables in hazardous areas

• They consist of parts such as body, compression nut, sealing ring, and earth tag

• IS code for FLP glands of LT cable is IS 2148:2004

A tap changer is a device used to adjust the turns ratio of a transformer, typically connected on the high voltage side. Primary and secondary current of a 66/11kV transformer can be calculated using the transformer turns ratio. Safety devices in a transformer include Buchholz relay, pressure relief valve, and oil temperature gauge.

• Tap changer adjusts the turns ratio of a transformer to regulate the output voltage.

• It i...read more

VFD stands for Variable Frequency Drive. It is used to control the speed of an electric motor and can provide energy savings and improved process control.

• VFDs adjust the frequency and voltage supplied to the motor, allowing for precise speed control.

• Applications include HVAC systems, pumps, fans, conveyors, and machine tools.

• Benefits include energy savings, reduced wear and tear on equipment, and improved process contr...read more

HVAC stands for Heating, Ventilation, and Air Conditioning. It is used in buildings to control temperature, humidity, and air quality. VFDs are used in HVAC systems to control the speed of motors.

• HVAC stands for Heating, Ventilation, and Air Conditioning

• It is used in buildings to control temperature, humidity, and air quality

• VFDs (Variable Frequency Drives) are used in HVAC systems to control the speed of motors

• VFDs he...read more