what is the differents and advantages of Electro magnetics
relay and static relay ? what is the numerical relay ?
advatages?......
Answer Posted / m.k.bhatnagar
Static relays are low burden, more accurate, low weight, easy testing & having higher range of setting than EM relays. Cost is more than EM relay.
Numerical relays are micro processor based relays and having the features of recording of parameter used as disturbance recorder flexibility of setting & alarms & can be used one relay for all type of protections of one equipment hence less area is required. Wide Range of setting, more accurate, Low burden hence low VA of CT is required which minimize the cost.
Is This Answer Correct ? | 8 Yes | 2 No |
Post New Answer View All Answers
what is Different between Bilinear and Unilenier?
What is minimum phase system?
If I want to buy a new Xformer for my plant what are the main parameter will I need to check?
difine electrical ballast in HPSVL
any one can explain the stages of a knee point which is taken during ct magnetising curve.
STATE WORKING OF VACCUM CIRCUIT BRAKER?
what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?
What the difference between ac and dc inductor an capacitor
wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?
what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me
The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?
Brushes are placed at magnetically neutral axis,when brushes reach that point,the armature conductor gets shorted,but it can be seen that the dc supply is also shorted,wont that get damage? help me plz
Inverter. converter. Ups.MCB.solar.alternators. motors.
What is the selection process of breakers. Can any one please give a formulation on same?
why we use circuit breakers for switching instead of normal switching device?