arun naheru


{ City } bharuch
< Country > india
* Profession * technician-electrical
User No # 58743
Total Questions Posted # 2
Total Answers Posted # 2

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Questions / { arun naheru }
Questions Answers Category Views Company eMail

Generally in AC we consider voltage, frequency and phase sequence for parallel operation ... Can we parallel two DC battery chargers? If yes, then what precaution to be taken when we parallel two DC power?

Reliance,

5 Electrical Engineering 6855

Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?

HCL, Reliance,

Electrical Engineering 1801



Answers / { arun naheru }

Question { HAL, 14060 }

What is the difference btwn grounding and earthing?


Answer

Generally both are same but in detail when we connect any
equipment (i.e. motor, mixture, washing machine or any
house hold equipment) with the earth through earth wire its
called earthing …. And when we earth any system like star
point of generator or transformer is called Grounding….(as
per my knowledge)

Is This Answer Correct ?    7 Yes 4 No

Question { 25990 }

Why Delta Star Transformers are used for Lighting Loads.


Answer

i think there are mainly two resone
1. in a big sub station or in company power supply is used
for plant load (which is generally use only 3 phase neutral
is not used)this supply also used for plant lighting which
is require neutral to obtain this neutral we use Delta Star
transformer which is also called isolation transformer
2. Delta star transformer is used to isolated secondary
side earth fault (which is common in lighting circuit) from
primary side.

Is This Answer Correct ?    7 Yes 0 No