Basic electrical learning

Electrical Symbols Challenge #2

A resistor, capacitor, and inductor are the three basic passive components used in electrical and electronic circuits.

❓ Question: Which component stores energy in an electric field?

A) Resistor
B) Inductor
C) Capacitor
D) Fuse

👇 Comment your answer below and challenge your friends to test their electrical knowledge!

From resistors to transformers, these are the symbols every electrician and electrical engineer should recognize. How many can you identify without looking at the names?

👇 Challenge: Which symbol is the most important in everyday electrical circuits, and why?

Electrical Brain Challenge

Why does a 3-phase induction motor start in STAR connection first and then switch to DELTA connection after a few seconds?

A) To increase motor speed instantly
B) To reduce starting current
C) To save wire size
D) To stop overheating completely

👇 Drop your answer in the comments and prove your electrical knowledge!

Can You Understand This Star-Delta Starter Wiring?

This is one of the most important motor control circuits used in industry to reduce starting current and protect heavy motors.
From MCCB protection to contactors, overload relay, timer, and star-delta switching every component plays a critical role.

👉 Challenge for Electrical Lovers:
Can you explain how the motor changes from STAR to DELTA mode step by step?

Comment your answer below and test your electrical knowledge!

Motor Protection Challenge

Why is an overload relay used in a motor starter circuit?

A) To increase motor RPM
B) To protect the motor from overcurrent and overheating
C) To improve power factor
D) To reduce cable size

Bonus Question: What will happen if the overload relay setting is adjusted too high?

Comment your answer below and test your practical electrical knowledge.

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Electrical Interview Challenge

Why is electrical interlocking used between STAR and DELTA contactors in a Star-Delta starter?

A) To increase motor speed
B) To reduce voltage fluctuation
C) To prevent STAR and DELTA contactors from energizing together
D) To increase starting torque

Only real electricians will answer correctly.

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Electrical Troubleshooting Question

A 3-phase induction motor connected with a Star-Delta starter is running normally in STAR mode, but trips immediately when it changes to DELTA mode.

What could be the possible reason?

A) Low supply voltage
B) Wrong motor terminal connection
C) Faulty push button
D) Indicator lamp failure

Comment your answer below and explain the reason if you know it.

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Star-Delta Starter Challenge

Every electrician has seen this panel… but only true professionals understand how each contactor, timer, and overload work together to protect the motor and reduce starting current.

Can you explain: • Why Star connection is used during starting? • What happens if Delta contactor turns ON too early? • Why electrical interlocking is important in this circuit?

Drop your answer in the comments and test your practical knowledge.

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