Electrical Machines Maximum power developed depends on reactance voltage both 1and 2 load angle reactance voltage both 1and 2 load angle ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V curve of synchronous motor shows variation of supply voltage and field current at constant excitation. power factor and supply voltage during hunting. power factor and DC excitation at constant load. supply voltage and excitation current at constant load. supply voltage and field current at constant excitation. power factor and supply voltage during hunting. power factor and DC excitation at constant load. supply voltage and excitation current at constant load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dummy coils are used for mechanical balancing. increasing efficiency. reducing armature reaction. All of these mechanical balancing. increasing efficiency. reducing armature reaction. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM has a rotor speed of 987 rpm find rotor frequency? 0.65 Hz. 0.75 Hz. 0.70 Hz. 60 Hz. 0.65 Hz. 0.75 Hz. 0.70 Hz. 60 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following transformer insulating oil generally used in India? Paraffin based insulating oil. Aromatics based insulating oil. Olefin based insulating oil. Naphtha based insulating oil. Paraffin based insulating oil. Aromatics based insulating oil. Olefin based insulating oil. Naphtha based insulating oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The demagnetising component of armature reaction in a DC generator reduces generator emf. reduces inter poles flux density. increases armature speed. results in sparking trouble. reduces generator emf. reduces inter poles flux density. increases armature speed. results in sparking trouble. ANSWER DOWNLOAD EXAMIANS APP
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