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what is relay what is protection & contact multiplying relays where it is used function in brief
1095What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?
930for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?
1082If 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.
1003If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
1088Draw 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.
910a 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
1475Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com
971Post New Electrical Engineering Questions
What can you contribute to the progress of our Company as an employee if you are selected?
What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?
which mm cable should be used for 1.hp immersible pump motor for the distance of 330 metres?
If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?
Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?
how we select ac fuse rating of an power inverter???
What is difference between mcb and mccb.
How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?
what is die electric strnth of transformer ?
What is the method of estamating of cable, CB,MCB ?
difference between high and low impedance BUS BAR relay??
What are the protections for safe running of electric generator?
What is meant by reverse polarity and how it can be fixed?
What is the difference between vector surge relay (78) and Pole slip relay (98G)
For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel
