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MCC 72

MCD 72

Fig. 7 Three phase AC-controller:

Power dissipation versus RMS

output current and ambient

temperature

Fig. 8 Transient thermal impedance

junction to case (per thyristor or

diode)

Fig. 9 Transient thermal impedance

junction to heatsink (per thyristor

or diode)

Constants for Z

iR

t

1

0.008

0.0019

2

0.054

0.047

3

0.238

0.3

Constants for Z

iR

t

1

0.008

0.0019

2

0.054

0.047

3

0.238

0.3

4

0.2

1.25

R

d

R

DC

0.5

180°

0.51

120°

0.53

60°

0.55

30°

0.57

R

d

R

DC

0.3

180°

0.31

120°

0.33

60°

0.35

30°

0.37