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What are the design guidelines for electrical system?

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a. All safety related equipments are in control building, SRPH and are designed for SSE conditions. As per studies seismic condition is not there within 5 kms and nearest zone is away from 20 kms. 

b. Safety related equipments are separated from suitable fire barriers of 3 hrs rating by horizontal and vertical clearances and from turbine building which are houses high energy rotating equipments and where potential for fire is exist. 

c. Separate switchyard control is provided in case of non-availability of main control room with line and bus coupler protection and bus bar protections. Control room posses SUT, UT, GT, Generator and all classes of power supply control and protections. 

d. Protection panels of Generator, GT, and UT are separated from SUT in physical to have system flexibility. 

e. SCADA is provided in CER, TB and in switchyard separately. 

f. EMTR for each A and B groups are separated. 

g. Control supply for switchyard is separated from operating island. 

h. To reduce fault level in lighting circuits separate 280-kVA transformer is provided. 

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