Fully Automated Burner Management System Using Plc

Fully Automated Burner Management System Using Plc The purpose of the protective relays and protective relaying systems is to operate the correct circuit breakers so as to disconnect only the faulty equipment from the system as quickly as possible thus minimizing the trouble and damage caused by faults when they do occur. Relays have revolutionized protection control metering and communication in power systems. Relay co-ordination will help to isolate the faulty region in the power system so that the fault at a particular region will not affect the other region in the system. Relay co-ordination can be done by selecting proper PSM and tsm of the relay and co-ordination can be checked graphically. Relay coordination in a power system will help to prevent the great loss and hazards caused due to the faulty conditions. Relays are also used to protect the transformer and motors also. Calibration of such relays are also done and also checked whether the relays are co-ordinate in each plant in FACT.

In a power system consisting of generators, transformers and distribution circuits, it is inevitable that sooner or later some failure will occur somewhere in the system. When a failure occurs on any part of the system, it must be quickly detected and disconnected from the system. There are two principle reasons for it. Firstly, if the fault is not cleared quickly, it may cause unnecessary interruption of service to the customers. Secondly, rapid disconnection of faulted apparatus limits the amount of damage to it and prevents the effects of fault from spreading into the system.


The detection of a fault and disconnection of a faulty section or apparatus can be achieved by using fuses or relays in conjunction with circuit breakers. A fuse performs both detection and interruption functions automatically but its use is limited for the protection of low-voltage circuits only. For high voltages (say above 3.3kv), relays and circuit breakers are employed to serve the desired function of automatic protective gear. The relays detect the fault and supply information to the circuit breaker which performs the function of circuit interruption.

Download Fully Automated Burner Management System Using Plc Electrical and Electronics Engineering EEE Final Year Project Report.

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