In constant power region of 3-phase IM torque-speed
characteristics, if frequency increases voltage
A does not alter B decreases
C increases D none of above
What is HT? And specify the range of voltage?
what should be the air clearence between phase to phase, phase to earth in Medium voltage switchgear for 3.3kv,6.6kv,11kv,22kv and 33kv? Which is to be referred for this?
what is the diffrence between kav and kvar?
What happen if field ckt is open when a sailent pole alternator connected to infinite bus
in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.
what is difference between differential protection and distance protection and how we calculate the sloop?
what is the difference between concentrated winding and Distributed winding in motor?
what should be distance between phase to phase in 415v system?
Technical requirement of Copper earthing over GI earthing.
What is the acceptable earth resistance for Commissioning the Transformer?
Difference between UPS and Inverter?
Explain REF protection and sbef protection in transformer?