power-factor meter
The cosmometer, also referred to as a phasometer, is a tool for measuring the delay / advance angle that exists between the voltage, the heads of a circuit, and the current passing through that same circuit. The unit of measurement of this instrument is a pure number, and then we are faced with a cosphimeter, or its equivalent in angles, and then we face a phasometer. Since the most commonly measured value is around 1 or around its angle equivalent at 0 ° this instrument usually has these values at the center of the scale. It is not uncommon to find a tool where both stairs are shown, one below the arc created by the index and the other above the arch. The phasometer is, together with the voltmeter, ammeter, wattmeter, surge arrester, frequency meter, and so on. a tool for measuring electrical quantities. As with other instruments, the basic parameters of a fasometer are three: ▪ the precision class, ▪ the flow rate, ▪ the resolution. Another parameter no less important is the isolation voltage. The fasometer is a tool that can only be used in electrical circuits with sinusoidal alternating current.