voimamittareiden
Voimamittareiden is the Finnish term for devices that measure electrical power and related quantities. In English, they are commonly called power meters or wattmeters. They are used in electrical installations, by utilities, in industry, and in consumer devices to quantify power flow, energy consumption, and related parameters such as voltage, current, frequency, and power quality.
There are several families of voimamittareiden. Analog wattmeters, including moving-coil and moving-iron designs, historically provided continuous
Key quantities include active power (P, watts), reactive power (Q, vars), apparent power (S, volt-amperes), power
Applications span household electricity billing, industrial energy management, and grid monitoring. In modern smart grids, voimamittareiden