Static Voltage Stability Assessment of the Kenyan Power Network

Table 8

Voltage stability margins of the selected load buses in critical Q-Modes after removal of the line.

Q-mode	BUS	Active power voltage stability margin	Percentage decrease in VSM (P)	Active power voltage stability margin	Percentage decrease in VSM (Q)
1	Maungu	0.3909	2.4957	0.4690	1.0448
	Titanium	0.3872	1.1539	0.4178	1.2521
	Manyani	0.3928	1.3767	0.4671	1.0422
	Vipingo	0.4102	1.9810	0.4855	1.0282
	MSA cement	0.4923	1.0468	0.4889	1.0548
	Kilifi	0.5807	1.4891	0.5716	0.8878
	Jomvu	0.4313	1.3836	0.4257	1.2681
	Voi	0.4752	0.7772	0.5137	0.9416
	New Maungu	0.5239	0.8351	0.5389	0.9003
2	Ndhiwa	0.4690	0.1678	0.5134	0.1712
	Awendo	0.4833	0.4755	0.5370	0.1626
	Kisii	0.4607	0.0692	0.5062	0.0578
	Chemosit1	0.3967	0.8679	0.4359	0.2398
	Chemosit2	0.3435	0.4433	0.3716	0.2578
	Bomet	0.4717	0.7980	0.5190	0.2084
3	Sultan Hamud	0.3808	1.1834	0.4688	0.9786
	Mtito Andei	0.3865	1.2235	0.4635	1.0400
	Wote	0.5104	0.3420	0.5408	0.9347
	Ulu	0.4110	0.8428	0.4797	0.9300
	New Sultan Hamud	0.5572	0.5998	0.5805	0.8938
	Kiboko	0.5464	0.9205	0.5608	0.9140
4	Lokichar	0.4095	0.0657	0.4560	0.0746
	Kalemngorok	0.4430	0.0535	0.5186	0.0463
5	Garissa	0.5215	0.3237	0.5539	0.3056
	Mwingi	0.5207	0.2087	0.5694	0.3353