what is relay what is protection & contact multiplying relays where it is used function in brief
718What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?
572for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?
657If 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.
660If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
762Draw 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.
567a 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
1016Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com
565Post New Electrical Engineering Questions
why it is so called as xlpe(cross linked poly ethyline) cable?
What is the difference between circuit breaker and isolator
What is the function of the circuit breaker failure relay?
a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------
Can we use shunt trip coil instead of trip coil with protection relay for protection?
how to deside the capacity of chock for drive?
orifice sizing how done, checking & selection
is the value of inductance depends upon the value of thitha in doubly excited machine??
What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP
how can we make cable shedule for controll wiring ? which details must be required for it.?
How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???
Can a generator runs after getting 1st stator earth fault.
for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance
which type of motor is used in automatic swing gate
Define rise time.
