what is the responsibilities of electrical project engineer?2 4442
1) What is difference b/w impedence relay and differential relay? 2) what are substations equipments? 3) what is difference b/w circuit breaker and isolator? 4)what are the types of circuit breakers? 5) which medium is mostlty used in circuit breakers and why it is used?
If cvt is most advance & effective(economically & stability)so why not use instead of VT(11 kv & 33 kv)?3 4169
what is the difference between grounding and earthing......how can we differentiate each other.....2 3845
How RTCC panel is working and give single line diagram for RTCC with transformer?2265
1 sq mm conductor=? how many amps3 6511
how to calculate power3 4735
how current is reverse from its normal direction during the fault?
The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?2810
I have a transformer 3phase 11kv/410v and its name plate missing. now how can I judge its rated kva?2 7749
My load is 15 kw,i want to improve power factor from 0.8 to 0.9,how select capacitor2 6904
how to calculate the cable size depending on the transformer rating2 3892
A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?
how to calculate IR value of 33KV cable ??
what is the minimum voltage require to injure our body?
how to select automotive wire by mathematical equation with given current, vlotage and resistance
List examples of voltage source?
Define corner frequency?
Which standard we are following earthing resistance test
what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?
2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?
advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor
why we use sinosidal voltage / current instead of others in system?
what is the difference between skin effect
How to calculate ht side cable of 630 kva oil cooled outdoor transformer?
explain the types of drives
What is relation between mu(nought) and epsilon(nought)?