engineering recuitment NHPC JE & THDC JE 2023 Mock Test Electrical Machines Alternator and Synchronous Motors
A 3-phase, 1500 KVA, 6600 v, star-connected alternator has 9 slots per pole and 6 conductors per slot. The output of this alternator on a particular load is given by 1200 KW and total losses of the machine is equal to 55 kW. What is the value of percentage efficiency?
1
93.12
2
99.21
3
90.23
4
95.62