1. Remote substation monitoring and control
Automation of power distribution system has increasingly been adopted by power
utilities worldwide in recent years. As part of its efforts to provide a more reliable supply
to the customer and to enhance operational efficiency here we have developed substation
automation. The automation of the entire power system can be achieved by a proper
monitoring and control. Monitoring refers to monitoring of voltage in the feeders,
transformer or P.Ts found in a substation whereas control refer to actions such as feeder
reconfiguration, fault dripping and other relay control actions.
This project presents the approach adopted in implementing the Substation
automation system and the benefits accrued through incorporating system. Electric power
substation is an important part of electric power system in delivery of electricity to
consumers. The project hardware contains three modules they are a remote voltage
monitoring system, remote relay control and power system transient analyzer. The
voltage monitoring is used to remotely display the bus bar voltage. This module can also
be used for display of current and temperature of transformers by the addition of suitable
transducer.
The remote relay control is used to remotely control 8 relays using RF waves. The
range of these systems depends on the number of power amplifiers used and the power
supplied to the transmitters. This module can be used for relay control in locations where
human presence is not possible.
The transients occurring in power system can be observed in matlab using a C.T,
this is demonstrated in the third module