what is differance between dirty earthing and clean
earthing and their applications
Answer Posted / mana
Dirty Earth is a connection between all the AC elctrical
Earth and Clean Earth is an earth which is used for DC
power. Both of this two earth will eventually conect
together at the service point where it is going to go to
the earth Net or wells. The difference is that they do not
want to mix this two earth together till the end point and
the reason is to avoid any earth loop between diferent
devices or earth at the plant.
| Is This Answer Correct ? | 68 Yes | 13 No |
Post New Answer View All Answers
While testing a ZCT what parameters have to check or measure?
What do you mean by pull of electromagnet?
any idea abt REVERSE METERING concept.........?
We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?
what types of electrical & mechanical test conducted in switchyard?
how to calculate the power factor when instantaneous voltage and current has harmonics in it ?
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
how to select automotive wire by mathematical equation with given current, vlotage and resistance
Approach of a cooling tower is the difference between temperatures of what factors?
What are the advantages and disadvantages of the ac motors?
What is the effect of pi controller on the system performance?
What is resonant frequency?
I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?
How many VSC based HVDC are there in India and the world
A jet of fluid strikes a plate What was the force required to counter it?