Interested to Buy Any Domain ? << Click Here >> for more details...
extremely urgent please, why a fuse is used before voltmeter but not with a ammeter connected to a CT(current transformer),thanks in anticipation.
4 10331We 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?
2201watt meter have 4 terminals what there name??? and what theses 4 terminals indicates ?? and why 2 terminals are short circuited??
1 6448what is the difference between single ratio, multiple core and multiple ratio, multiple core ? please explain.
NTPC,
2246why the 4 terminal are named as main, line, common, voltage (M, L, C, v) of a wattmeter?? why not its nameed as A,B,C,D??
6 45921Hi,, Just I want ask, if the power factor decrease what happen in voltage regulation? Thanks..
1 3748Post New Electrical Engineering Questions
what is meant by flywheel and its role in retardation test
what is difference between line differential and transformer differential?
what is the role of energy meter in distribution system ?
HOW TO WORK A VFD?SAY SIMPLE METHOD
hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.
how 650 volts creates? where is use?
how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?
what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?
wat is d diffr btw shunt coil and trip coil in VCB?
hi, i have 3x200KVA and 2 x 80KVA UPS with battery bank of 150AH 68Nos. and 100AH 204Nos., i need to install AC either ductable or PAC type, so can you help me to calculate heat load and capacity of the AC to install.
how can calculate 1kva generator running time in 1 liter keroscene
How to design harmonic filter at the project stage without nowing the harmonics levels
What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.
