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I applied via Naukri.com and was interviewed before Jun 2023. There was 1 interview round.
AC supply is alternating current that changes direction periodically, while DC supply is direct current that flows in one direction constantly.
AC supply changes direction periodically, while DC supply flows in one direction constantly
AC supply is commonly used in household appliances, while DC supply is used in electronics like computers and phones
AC supply is generated by power plants and transmitted over long distanc
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There are several types of circuit breakers used in electrical systems.
Thermal circuit breakers: use a bimetallic strip to detect and respond to excessive heat
Magnetic circuit breakers: use a solenoid to detect and respond to high currents
Ground fault circuit interrupters (GFCIs): detect imbalances in electrical currents to prevent electric shocks
Arc fault circuit interrupters (AFCIs): detect dangerous electrical arcs ...
Miniature Circuit Breakers (MCBs) are types of circuit breakers used in electrical systems to protect against overcurrents.
MCBs are commonly used in residential, commercial, and industrial applications.
They are available in different current ratings, such as 6A, 10A, 16A, 20A, etc.
MCBs can be single-pole, double-pole, or triple-pole, depending on the number of phases they can handle.
Some common types of MCBs include B-...
I applied via Recruitment Consultant and was interviewed before Jul 2020. There was 1 interview round.
Line voltage is higher than phase voltage in three-phase power systems.
Line voltage is the voltage between any two phases in a three-phase power system.
Phase voltage is the voltage between any one phase and the neutral point.
In a balanced three-phase system, line voltage is √3 times higher than phase voltage.
For example, if the phase voltage is 120V, the line voltage would be 208V.
The phase voltage is used to rate the ...
MCB - Miniature Circuit Breaker, ELCB - Earth Leakage Circuit Breaker, RCCB - Residual Current Circuit Breaker, MCCB - Molded Case Circuit Breaker, ACB - Air Circuit Breaker
MCB: Protects electrical circuits from overcurrents and short circuits
ELCB: Detects and protects against leakage current to prevent electric shock
RCCB: Provides protection against residual current and earth faults
MCCB: Offers protection against over...
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