Answer / mano

There are two types of Earthing are required in UPS.
1. Dedicate earthing
2. Body earthing

Answer / sushil kumar tiwari

Two Earthing required. 1st earthing for Body earthing. 2nd
Earthing for Neutral if UPS is Three Phase.

Answer / natarajanamkumar

Mr.Mani that is not Dedicate Earthing,and Body Earthing.
that is 1.System Earthing 2.Equipment Earthing.
thanking you.

Answer / saeed akhter khan

The earth is required for UPS due to back voltage the voltage in between neutral & earth 3 volta max.

Answer / prabhu

Three Earthings are required.

1. DC side Earthing to avoid the distortion in the line.
2. Equipment Earthing
3. Electronic Earthing for the cards which works in low
voltage.

Where the internal convertor will have the Trafo, that will
be connected for the common earthing.

Both should not common, if Electronic items will get affect
when Ground current flows more than a limit.

Answer / mani

Dedicated two neautral earthing and two body earthing

Answer / prabhukumar

1.Panel earthing or equipment earthing.
2. Neatral earthing should be their

Answer / manik

1,2,3,4,5,6,7,8

Answer / saeed akhter khan

UPS is required only one earth which is required for equipment which is working on it.

How would you supply power to a village which is very far from a sub-station and has only a 11kV line running near by?

3 Answers  

how to calculate cable size, olr rating, contactor rating and mccb rating,to below given details three phase motor 75 kw,415 v,.85 pf,50 hz?

5 Answers   Cabin Crew, Essar,

in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

0 Answers  

what is the advantage of connecting capacitors in delta than in star?

1 Answers   NTPC,

What are the different types of circuit breakers?

3 Answers   IOCL,

how will be the capacitance generated in a earthed wire???

1 Answers  

Induction generator has = A negative speed B negative slip C negative voltage D negative current

2 Answers  

What conditions are required for transformer to operate at low frequencies ?

0 Answers  

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0 Answers   Khidmah,

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1 Answers  

from which formula we select a capacitor rating?

0 Answers   CLG,

if 400kv line is connected to the load but neutral ii not be connceted then wt ll happen

1 Answers