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 7271
If the maximum demand is 120 KVA in a building, then what is the Current taken according to load given ? Formula for it ?3 5335
Is 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.1508
how the frequency was generated in power station2 3722
As per which Indian Standard induction motors are manufactured?2 3643
Radio 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 these2 3290
How to improve insulation resistance of Motor2 6823
why 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 3881
Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.
Define conversion efficiency of a power amplifier. What is its value for class c power amplifier?
Determine a suitable number of slors and conductors per slot for the starter 1 winding of a 3 phase, 3300 V. SO Hz 300 rpm alternator. The diameter is 2.3 m
Why is a synchronous motor always star connected??
State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp
what is a bus post insulator? explain its application in a substation.
what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)
how to calculate the power factor when instantaneous voltage and current has harmonics in it ?
What is Negative Potential Bias
Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?
What is the two pole structure?
What do you understand by external characteristics of a d.c. Generator?
trasnfarmaer core make
How to discuss the phase shift of transformer considering open delta?
why should the primary of transformer be connected in delta in a heat run test?