
Monitoring of substations has become an essential task currently, in order to ensure consistent power supply to end-users. Transmission and distribution substations supply electric power to different loads depending on the end-users and voltage levels. There are different monitoring methods, which include wired and wireless technologies, while wireless communication technologies include GPRS, GSM, and Ethernet. Substation monitoring systems monitorsspecified parameters such as current, frequency, voltage, current, temperature, and power factor. Substation monitoring system consist of various equipment such as circuit breaker, transformer, relays, APFC panels, etc. The substation monitoring system consists of three main units, namely, data processing and transmitter unit, load and measurement system, and receiver and PC display unit. Substation monitoring system are widely used in the market for increased reliability, operational advantages and economic benefits. The substation monitoring system is a crucial element of global and national infrastructure. Furthermore, when these systems breakdown, they lead to a high impact on national security and economy.