Electrotechnical Systems

32 Electrotechnical Systems

FIGURE 2.16 Frequency characteristics of the double-tuned lter.

FIGURE 2.17 Frequency characteristics of the high-pass lter.

33Models of Power Circuit Devices

C-type lter is tuned for the third harmonic under Q = 1.75, then

XCL

c

= 315 /49 (9/8) = 2278 , = 1.4 F, = 2278/9/314 = 0

2

1

Ωµ ..806 H

C

RfQL

m

2

2

= 1/0.806/314 = 12.58 F,

= 2 = 314 3 1.75

µ

π×××× 0.806 = 1328.7 .Ω

The lter characteristic is given in Figure 2.18.

The model of Mutual Inductance can operate in two modes: as a two- or

three-winding reactor with ...