gefran GTF Plus Installation And Operation Manual page 26

Figure 37
parameter defines the minimum number of conduction cycles settable from 1 to 10.
In the following example, the parameter = 2.
HSC - Half single cycle
This mode corresponds to Burst Firing that manages ON and OFF half-cycles.
NB: This mode is NOT allowed with inductive loads (transformers).
Figure 38
Example of operation in HSC mode with power at 33 and 66%.
Phase angle (PA)
This mode controls power on the load via modulation of trigger angle q
if power to be transferred to the load is 100%, q = 180°
if power to be transferred to the load is 50%, q = 90°
Figure 39
Resistive load
26
Inductive load
80960_MHW_GTF_01-2012_ENG