Hi , I am just need someone to write short report like a paragraph about what we
ID: 1714955 • Letter: H
Question
Hi , I am just need someone to write short report like a paragraph about what we did in this Lab Pages.Please, i need that fast
ECET 21200 ELECTRICAL POWER& MACHINERY POWER MEASURMENT IN SINGLE-PHASE CIRCUIT OBJECTIVE Investigate the Active, Apparent &Reactive; power in a single-phase circuit EQUIPMENT&SUPPLIES; AC Wattmeter AC Voltmeter AC Ammeter R-L-C Load Box AC Line Cord EXPLANATION The concept of active, apparent and reactive power plays major role in electric power technology. In effect, the transmission of electrical energy and the behavior of AC machines are often easier to understand by working with power, rather by dealing with voltages and currents Figure 1-1 shows wattmeter connections for measuring AC power A wattmeter consists of (0) low-resistance current coil (C.C) which is inserted in series with the line carrying the current and () a high resistance potential coil (P C) which is connected across the two points whose potential difference is to be measured r C ne Figure 1-1 Wattmeter Connections
Explanation / Answer
the experiment is done for different loads i.e. R, L, C and R-L.For all the loads we apply the same supply voltage.When load contains R then the current flowing through load is more i.e. the load magnitude is less. when load is R the pf is unity and the power absorbed by the load is purely real power. For load L and C the pf is not zero that means L and C having some internal resistance.Incase of L and R-L the load absobs both real and reactive power because in this case pf angle is lagging. In case of C load it absorbs real power and supplies reactive power because in this case pf angle is leading.