energy meter working principle
energy meter working principle. An energy meter, also known as an electricity meter or watt-hour meter, is a device used to measure the amount of electrical energy consumed by a residential, commercial, or industrial electrical circuit. Its working principle is based on measuring the flow of electrical current and the voltage across the circuit. Here's a simplified explanation of how an energy meter works: Current Measurement: Inside the energy meter, there are current coils (usually two) connected in series with the electrical circuit being monitored. These coils create a magnetic field proportional to the current passing through them. The strength of this magnetic field is directly related to the current. Voltage Measurement: There are also voltage coils (typically two) connected in parallel to the circuit. These coils are connected to the voltage being supplied to the circuit. They create a magnetic field that is proportional to the voltage. Magnetic Field Interaction: The magne...