why the earth pin in a 3-pin socket is longer and thickest?
Answer Posted / jkgjk
When we insert 3-pin plug in the socket, first longer and
thiker pin touch the plug, which is connected through earth.
This is for human protection from earth fault.
| Is This Answer Correct ? | 14 Yes | 3 No |
Post New Answer View All Answers
Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.
Does magnetomonopoles exists? one maxwell equation strongly suggests no, but how about their existance in plasma?
What do you understand by oldham's coupling ?
how to find the Motor,s insulation Power?
What is open loop and control loop systems?
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
What are the disadvantages of autotransformer?
Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.
EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR CIRCUIT BREAKER.
Please elaborate th´evenin’s theorem?
If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.
What are the main advantages of generalized error co-efficients?
how to calculate the torque of a motor?
if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.
We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.