what is the safety of ACB & VCB and how can this work and how can the service the ACB & VCB parts name with picture
ABB, ACB, Bharti, Claris Lifesciences, Honda, L&T, RotoPower, Sterling Wilson, Wipro,
21 93762details of oil cell size of Breakdown voltage test of tranformer oil details as per Standardswith mushroom electrodes?
1435Sir We have a REF relay connected to 10MVA(Y-Y) Transformer.on External earth fault REF relay trips along with earth fault relay.The REF relay has no complant as we tested relay.Why is it happening?
KSEB,
3 5264how can we measure rotor current of a 3phase wound rotor induction motor connected to liquid resistance starter
1 2711explain with the help of loading capability curve,reactive power generation and absorption from synchronous generator?
1724I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400
1404in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?
1664What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?
1637if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please
Bhel,
1589I am an electrical engg and has got selected in wipro should i go there now or try in some core company ?
3 3722Post New Electrical Engineering Questions
Is there any type of starter for DC motor other than two point,Three point and Four point starters?
What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?
Explain bypass capacitor?
What is an alternator impedance value?
what is the effect of higher value of GD???
HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.
Advantages of using generator circuit breaker (GCB) scheme in a power station ?
What is CCM in Electrical ? where can we use this material?
description about dry type transformers
how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?
What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?
Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?
Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance.
