Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 20 ppm. 45 ppm. 35 ppm. 25 ppm. 20 ppm. 45 ppm. 35 ppm. 25 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 3rd harmonics are eliminated in induction motor by using zig - zag connection. delta connection. V connection. star connection. zig - zag connection. delta connection. V connection. star connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following type of brush and their application is/are correct All of these copper graphite → low voltage high current density carbon brush → normal ratings electro graphite → large ratings All of these copper graphite → low voltage high current density carbon brush → normal ratings electro graphite → large ratings ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by transposing any two leads from supply. transposing all the three leads from the supply. disconnecting any one phase. transposing any two leads from slip rings. transposing any two leads from supply. transposing all the three leads from the supply. disconnecting any one phase. transposing any two leads from slip rings. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed in a cylindrical synchronous machine depends on synchronous reactance both 1and 2 excitation load angle synchronous reactance both 1and 2 excitation load angle ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The commutator segments of DC machines are made up of copper alloy hard-drawn copper brass copper copper alloy hard-drawn copper brass copper ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS