WHAT IS THE REASON FOR THE GROUND PIN IS BIGGER IN SIZE
COMPARING TO OTHER PINS?
- 13 Answers
- 12975 Views
- I also Faced
- E-Mail Answers
Answer Posted / venu
because as the diameter increases resistance decreases wen
ever a ground fault occurs by the body short of any
equipment it creates a very low resistance path to dicharge
through it
| Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
i want to model paper for section engg.
What types domain of laplace transforms? What behavior can laplace transform predict how the system work?
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.
Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.
What is mason's gain formula?
I am inpecting a 10kVA UPS what tests should i do and should i observe?
HOW TO CALCULATE EARTHING SIZING?
Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.
As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.
How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?
why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.
Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?
Any one who apply for Ferro Scrap Nigam Limited cn join with me at rajuhalder@indiatimes.com or 09669717028
how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.
