What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.
1 7325If the maximum demand is 120 KVA in a building, then what is the Current taken according to load given ? Formula for it ?
3 5367Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
1523Radio Carbon dating is used in a) find diseases b) find the age of relics c) find the carbon content in the atmosphere d) none of these
2 3303why a single phase motor of same rating takes more amps than the three phase motor? as single phase motor at 230v takes 5amp per HP while 3 p motor takes 2.5amp per hp at 230v.
1 3893Post New Electrical Engineering Questions
How to calculat the ratio of HT\LT in energy meter
i am studying in final year can i allowed for 23rd UES of Indian army
high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...
what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?
Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA
What happens to a motor if it is connected in Delta connection
How to Design green buildings services? What is the advantage to design green building?
PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM
How earthing of switchgear system to be done.
What is the purpose of stablization resistor in high impedance bus bar protection
H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....
1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.
What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV
1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?
what will happen if frequency is below 50 hz?