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The per-unit parameters for a 1000 MVA machine on its base are M = 40 p.u. and H = 5 p.u. The per-unit values of M and H on 100 MVA base of

Given data:

  • M = 40 p.u.
  • H = 5 p.u.
  • S1 = 1000 MVA
  • S2 = 100 MVA

We need to find the per-unit values of M and H on 100 MVA base.

The per-unit values of M and H on the 100 MVA base using the formula:

M2 = M1 * (S2 / S1) H2 = H1 * (S1 / S2)

Substituting the given values:

  • M2 = 4 p.u. * (100 MVA / 1000 MVA) = 0.004 p.u. = 4 p.u.
  • H2 = 5 p.u. * (1000 MVA / 100 MVA) = 0.05 p.u. = 50 p.u.

Therefore, the per-unit values of M and H on the 100 MVA base are 4 p.u. and 50 p.u., respectively.