Answer :

Rochirion

Answer:

15 Ω

Explanation:

To find the impedance 'Z' of a balanced 3-phase delta connected load, we need to combine the resistance 'R' and the inductive reactance 'X_L' using their respective formulas in the context of impedance.

For a delta-connected load, the impedance per phase can be calculated as follows:

[tex]Z = \sqrt{R^2+X_L^2}[/tex]

We are given:

  • R = 12 Ω
  • X_L = 9 Ω

Calculating the impedance we get:

[tex]Z = \sqrt{12^2+9^2} = \boxed{15 \ \Omega}[/tex]

Thus, the impedance 'Z' of the balanced 3-phase delta connected load is 15 Ω.

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