WebWattmeter is an electric instrument which is used to measure the electric power of various electric circuits. It consists of a current coil and a voltage coil. These instruments are … Web25 okt. 2024 · The instrument that measures the low value of power factor accurately is known as the Low Power Factor Wattmeter (LPFW). The low power factor meter is used for measuring the power of the highly inductive circuit. The ordinary Wattmeter used for measuring the low power factor gives the inaccurate result. This happens because of two …
Measuring Instruments MCQ Questions - Your Electrical Guide
WebAn induction wattmeter can be used for (a) both D.C. and A.C. (b ) D.C. only (c) A.C. only (d) any of the above Ans: b . 20. The pressure coil of a wattmeter should be connected on the supply side of the current coil when (a) load impedance is high (b) load impedance is low (c) supply voltage is low (d) none ... Web24 feb. 2012 · The principle of working and construction of induction type meter is very simple and easy to understand that’s why these are widely used in measuring energy in domestic as well as industrial world. In … elder scrolls wiki magic
The history of the electricity meter Smart Energy International
Web23 mrt. 2024 · Induction types of energy meters are universally used for the measurement of energy in domestic and industrial A.C circuit The unit of electrical energy is a kilowatt hour (KWh) The induction type of energy meter used is based on the “electromagnetic induction” principle They are known as induction-type instruments WebThe two wattmeter method is used in determining total power derived from the three phase load which is always constant, regardless of variations in phase power as well as angular displacement. Thus, the power output from a three-phase motor is also constant based on the findings using the said measurement. elder scrolls wiki mounts