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what is relay what is protection & contact multiplying relays where it is used function in brief
1186What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?
1000for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?
1167If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.
1080If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
1178Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.
980a 230v transformer with step down ratio 19:1.it has 2000turns on primary and rated 25va calculate max primary current no of secondary turns volts/turn
1544Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com
1038Post New Electrical Engineering Questions
We have given to 3phase supply to ups system & how can coming netural
How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?
what is reverse power relay brief explanation and in b/w where it is connected
nwhat are the main Components of servo motor?
Whether the vacuum contactor requires Short circuit protection?If No,why?
for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv
hi, i have 3x200KVA and 2 x 80KVA UPS with battery bank of 150AH 68Nos. and 100AH 204Nos., i need to install AC either ductable or PAC type, so can you help me to calculate heat load and capacity of the AC to install.
we are small scale industry in production of rice & rice bran. Pls let me know how to take contract demand for our industry.. (for information we have total 600.hp)
Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?
Why you are switching off arc protection mcb when you are taking shutdown for lv board.
What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?
why we have and use 3 phase not 2 or 4 or other in power system?
how we arrange the hv side with delta connection in case 33/11kv of transformer.
What are the three types of compensators?
what is the difference betweem star connected motor & delta connected motor?
