Given a single phase inductance Lm.1) ,1phase = 12 mH, what is the mutual inductance between stator phases? (Answer in mH.)

Our basis for the construction of line phasors is the COSINE function. A True B False

3.n Figure 3P.2 shows two capacitor banks, C, and C2, in a substation C is enercized, but C, is discharged. The three-phase, 60 Hz ratings of the banks are: C,, 5 MVA; C,, 3 MVA, on a 13.8 kV base. The source has a short circuit rating of 20 kA rms at 13.8 kV. The inductance of the loop between C, and C,, represented by L, is 30 µH. 13.8 kV V3 L L2 o to C2 Source Capacitor banks ouG OL 19 Fig. 3P.2. Calculate the peak transient voltage that will appear on C, and the peak transient current that will flow in L,, if the switch S is closed at the peak of the voltage cycle. Point out any assumptions you make.

V1 ZT Z2 V2 V3 Z5 Z3 Z4 Figure 18.4 See Figure 18.4. In a general bridge circuit such as this, what condition will result in a balanced bridge? Z1Z4 = Z2Z3 Z3 = Z4 O ZĄZ3 = Z2Z4 O Z1Z2 = Z3Z4