what is the voltages using in movie theaters??? why ??why not other??
What is bridge rectifier and explain with details
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
hi, could someone help me to find a control design for syncronising panel .
what is RFCT and Insulgard Relay & It's function?
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
sir i want previous entrance exam papers for written test
what is Anti-pumping?
what is the difference between single ratio, multiple core and multiple ratio, multiple core ? please explain.
what is the stear deltaprinceple?
sir vizag steel ka junior trainee ka paper kitne number ka ayega
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
what is the difference between 4pole & 6pole DC Motors & give advantage ?
do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....
