VOLTAGE STABILIZATION OF A THREE-PHASE INDUCTION MACHINES CONNECTED AS A SINGLE-PHASE GENERATOR

In rcmote itreas and high zone situations it is ncccssitry to use it single￾phase generator to he emplo?.ed as a stitndhy unit, n.herc ;I single wire
cirrth return system is found to he cconomical to install.
In this pitper, it three-phaw induction mitcliinc is connected its ill1
*. isolatc(l self-excited single-phitse generator. I hc possibility of operating
this gcncrittor through the use of an excited cirpitcitor is outlined. Thc
effect of the excited capilcitor is obtained for loitdcd and unloirtlccl
opec~tions. The cspcrimental system is usid to study the effect of
gcnCrittor speed on its loading 01' the generator. \loreover the output
\.olritgc of the gcncrittor is stabilized using the designid paritmetes thr it
tiscil capacitor thyristor controlled inductor schcme. This scheme is usctl
to regulate the generator tcrrninal voltage I>>. controlling the thyristors
tiring itnglc. This is clone hy ;~djusting the self cscitwtion to maintain thc
t~rl~initl wtlagc consti~nt over it wide range of loading.