Question

In the Y-Δ system shown in the given figure, the source is a positive sequence with V_an = 490∠∠0° V and phase impedance Z_p = 2 – j3 Ω. If wattmeters W₁ and W₂ are properly connected respectively between lines a and b and lines b and c to measure the power absorbed by the delta-connected load in the given figure, predict their readings.

V an а Zp Vbn b + п Zp сп с + The reading of each wattmeter is as follows: P1= kW kW P2 =