JCB Electrical Engineer Interview Questions, Process, and Tips

Bukolze relays are used in electrical engineering for their high reliability and ability to handle high voltage and current.

• Bukolze relays are known for their robustness and durability.

• They are commonly used in power distribution systems and industrial applications.

• These relays can handle high voltage and current levels, making them suitable for heavy-duty operations.

• They provide reliable switching and protection in el...read more

Star delta is used in electrical engineering to reduce starting current and protect motors.

• Star delta connection is used for induction motors.

• It reduces the starting current by a factor of √3.

• It helps in reducing voltage drop during motor starting.

• It protects the motor from excessive current and overheating.

• It is commonly used in applications where the motor needs to start with a low current.

Ten delta test is used to detect winding deformation and shorted turns in transformer.

• Detects winding deformation and shorted turns

• Helps in identifying internal faults

• Used for routine maintenance and troubleshooting

Explosion vent in transformer is used for safety purposes.

• It helps to release pressure build-up inside the transformer due to internal faults or external factors.

• It prevents the transformer from exploding and causing damage to the surrounding area.

• The vent is designed to open at a specific pressure level to ensure safe release of gases.

• It is a mandatory safety feature in transformers as per industry standards.

• Examples ...read more

Star delta starter is used to reduce the starting current of induction motors.

• Reduces the starting current of induction motors

• Prevents excessive voltage drop in the power supply

• Protects the motor windings from overheating

• Allows for smooth and controlled motor starting

• Commonly used in applications where high starting torque is not required