Larsen & Toubro Limited Electrical Technician Interview Questions and Answers

Q1. What is Full form DOL starter
Ans. 
DOL starter stands for Direct-On-Line starter, used to start motors by directly connecting them to the power supply.
• DOL starter is the simplest and most common type of motor starter.

• It directly connects the motor to the power supply without any intermediate starting method.

• It provides full voltage to the motor during starting, which can cause high inrush current.

• DOL starters are suitable for small to medium-sized motor...read more
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Q2. What is APFC PANEL
Ans. 
APFC PANEL stands for Automatic Power Factor Correction Panel, used to maintain power factor in electrical systems.
• APFC PANEL automatically monitors and corrects the power factor of electrical systems.

• It helps in reducing electricity bills by maintaining a high power factor.

• APFC PANELs are commonly used in industries and commercial buildings.

• They consist of capacitors that are switched on and off based on the load requ...read more
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Q3. Star dalta conection
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Q1. Harness routing considerations.
Ans. 
Harness routing involves planning the layout of electrical cables for optimal performance and safety in devices.
• Minimize bends and twists to reduce signal loss and wear on cables.

• Maintain separation between power and signal wires to prevent interference.

• Use protective conduits in high-stress areas to enhance durability.

• Consider thermal management by routing away from heat sources.

• Plan for accessibility to facilitate ma
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Q2. Harness conduit selection.
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