The Gauss Seidel load flow method has following disadvantages. Tick the incorrect student.

In a biased differential relay the bias is defined as a ratio of

Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching

A generator feeds power to an infinite bus through a double circuit transmission line. A $$3$$ phase fault occurs at the middle point of one of the lines. The infinite bus voltage is $$1$$ pu, the transient internal voltage of the generator is $$1.1$$ pu and the equivalent transfer admittance during fault is $$0.8$$ pu. The 100 MVA generator has an inertia constant of $$5$$ MJ/MVA and it was delivering $$1.0$$ pu power prior of the fault with rotor power angle of $${30^ \circ }\,\,$$. The system frequency is 50Hz.

If the initial accelerating power is $$X$$ pu, the initial acceleration in elect deg/sec², and the inertia constant in MJ-sec/elect deg respectively will be