Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / shivprasad
An auxiliary relay is a relay that asists another relay or device in performing an action.it does this when its operating circuit is opened or closed.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is meant by rotating magnetic filed
Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
How to set a Zone 1 distance relay for distribution feeder?
current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer
What are the advantages and disadvantages of open loop control system?
What is FTA card? How it works?
Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??
what is mean by transition resistance of transformer?
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.
(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?
generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...
How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?
how to calculate the Neutral transformer impedance?
A 2083kva AVR was tested, phase to ground shows continuity, what is the implications
