Sensor placement algorithm for faults detection in electrical secondary distribution network using dynamic programming method: focusing on dynamic change and expansion of the network configurations

Journal of Electrical Systems and Information Technology

Table 4 Nodes observability for 23 node network

Node number	Observability rule	Descriptions	Parameter
1, 2, 3, 4, 5	Rule 1	Direct measurement by node sensors	Voltage and current
7, 9, 11	Rule 1	Direct measurement by node sensors	Current
6, 7, 9, 10, 11	Rule 2	Pseudo-measurement	Voltage
	Rule 2	Pseudo-measurement	Current
6, 8, 10	Rule 4	KCL	Current