GATE EE
Power System Analysis
Per Unit System
Previous Years Questions

## Marks 1

The p.u. parameters for a $$500$$ MVA machine on its own base are: Inertia, M = $$20$$ p.u.; reactance X = $$2$$ p.u. The p.u. values of inertia and ...

## Marks 2

Two generator units $$G1$$ and $$G2$$ are connected by $$15$$ $$kV$$ line with a bus at the mid-point as shown below $${G_1} = 250\,\,MVA.\,\,\,15kV... Two generator units$$G1$$and$$G2$$are connected by$$15kV$$line with a bus at the mid-point as shown below$${G_1} = 250\,\,MVA.\,\,\,15kV...
For the power system shown in the figure below, the specifications of the components are the following: $$G1: 25$$ $$kV,$$ $$100$$ $$MVA,$$ $$X=9$$% \$...
A generator is connected through a $$20$$ MVA, $$13.8/138$$ kV step up transformer, to a transmission line. At the receiving end of the line a load is...
A new generator having $${E_g} = 1.4\,\angle {30^ \circ }\,$$ pu [ equivalent to ($$1.212 +j$$ $$0.70$$)pu ] and synchronous reactance $$'{X_s}'$$ of ...
A $$75$$ MVA, $$10$$ kV synchronous generator has Xd $$= 0.4$$ p.u. The Xd value (in p.u.) is a base of $$100$$ MVA, $$11$$ kV is ...
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