Why are tertiary windings used in transformers?2 6423
Why do series motors have high starting torque?3 7783
What is meant by single line diagram?2 9484
What is EOL?1 2885
Difference between single phase and three phase?1 4360
How does numerical relay work?1 3133
Can VFD step up to 60 Hz if it is designed to receive 50 Hz input?3 4088
How current is reduced in STAR connection?6 23757
Differenc between the resistance and resisters?5 4283
Why the Voltage rises when Leading Power Factor is occurs?2 4754
DGs fuel and lube oil filters are not equal to one another.Why it is so.For example one MTU enginee fuel filter is one and lube oil filter-02nos other DGs are more.Please explain1 1461
in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly
HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????
why does the magnetic balance tests at transformer?
explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?
What happens to a motor if it is connected in Delta connection
What is dynamo?How it works and what is the function of dynamo in a DG.
What is the minimum IR value of HT/ LT cable? Pls post separetely!!!!!
Earth has zero potential then what would be the neutral potential ?
What is fault clearing time for Current Limiting Moulded Case Circuit Breaker?.
Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??
what is the meaning of osr in transformer.
what is sustainable current of any conductors . a bare busbar or pvc cable has different sustainable current .
Why colled 440V to 3-phase supply.
ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture
Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?