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| Fig-Split Type AC Wiring Diagram |
A split AC or air conditioner has two main assemblies: the indoor unit (evaporator, blower, PCB) and the outdoor unit (compressor, condenser fan, contactor/capacitor). They are connected by a power supply and a multi‑core interconnecting cable that carries power, earth, and control/communication signals between the two units.
A differential relay is a protective relay that is commonly used in electrical power systems to detect and protect against faults or abnormalities in electrical circuits. It operates based on the principle of current balance or current differential.
AC Motors: AC motors are fascinating devices that convert electrical energy into mechanical motion using alternating current (AC).
They have two main parts: a stationary stator and a rotating rotor. When AC power is supplied, it creates a magnetic field in the stator that interacts with the magnetic field of the rotor, causing it to turn and drive mechanical systems.
Each Synchronous and Asynchronous Motor type has its own strengths and suitable applications depending on the requirements.
Definition of Synchronous Motor: A synchronous motor is an AC motor that runs at a speed directly proportional to the frequency of the supply current.
Relays play a crucial role in electrical substations by monitoring various parameters and controlling the operation of equipment. Here are some common relays used in electrical substations and their functions:
Overcurrent Relay: Overcurrent relays are used to protect electrical equipment from excessive currents. They sense the current flowing through a circuit and, if it exceeds a predetermined threshold, the relay trips and sends a signal to a circuit breaker to interrupt the current flow, thereby protecting the equipment from damage.
