A 30 MVA, 11.5kv, star -delta power transformer is to be protected by differential protection. The high voltage side face behind low voltage side phase by 30% formulate a complete differential protection for the transformer by selecting cut ratios, CTconnections. The continues current capacity of restraining coil of the differential relay should not exceed 5 amp ct ratio is 3000/5 on 11.5 kv side. Determine ct ratio 69kv side ​

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.

Aplate of dimensions 3 m x 3 m is placed 0.37 mm apart from a fixed plate. the plate requires a force of 2n to move at speed of 45 cm/s. evaluate the viscosity of the fluid in between the plates

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?