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Electrical Engineering Terms B

Bonding.

The act of interconnecting two or more conductive bodies to establish electrical continuity and conductivity.

Baseline Speed.

Listed on the nameplate of a given electric motor, the baseline speed is the full-load or running speed or rpm of the motor when it is operated at its rated voltage, rated full-load current, rated frequency (AC motors), and rated torque (horsepower rating).

Branch-Circuit Selection Current (BCSC).

Normally abbreviated to the acronym BCSC, this term describes the value in amperes to be used instead of the rated-load current in determining the ratings of the hermetic refrigerant electric motor-compressor branch-circuit conductors, disconnecting means, controllers, and branch-circuit short-circuit and ground-fault overcurrent protective devices wherever the running overload protective device permits a sustained current greater than the specified percentage of the rated-load current. The value of the BCSC will always be equal to or greater than the nameplate-marked rated-load current of the hermetically-sealed refrigerant motor-compressor.

Breakdown Torque.

The maximum torque that can be developed by a given electric motor with the rated voltage applied at the rated frequency (AC motors), without an abrupt drop in rotor speed.

About Ahmed Faizan

Mr. Ahmed Faizan Sheikh, M.Sc. (USA), Research Fellow (USA), a member of IEEE & CIGRE, is a Fulbright Alumnus and earned his Master’s Degree in Electrical and Power Engineering from Kansas State University, USA.

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