What should be distance required in between two phase of HT
cionductors in open area??????
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What is the count of hvdc transmission lines in india?
What is star-delta transformer?
dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish
i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?
What is the difference between the relay and the circuit breaker?
Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.
An automatic water heater is an example of which type of control system?
How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?
What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.
Is it possible to use a S1 duty class motor for crane application (S4)? If not, why?
What is meaning of out of phase (making & breaking) capacity And how to calculate
I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???
what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing
What happen Grid EARTH plat got cut.
What is Harmonics how it is produced and what is the method to control the same