how much percentage set in transformer diffrencialrelay

Answer Posted / ram

Differential relay operation depends upon the transformer
rating.
There are some factor to be consider for differential relay
settings.few are as follow.
1)Inrush current of the transformer
2)Load details

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?

1742


in india per day how much power is generated including all power station

1460


what is 3rd Harmonics? how it is generated in alternator

8460


Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used

1815


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?

1450






What are the functions of different probes used in cro?

677


Why did lightening arrestor solid copper rod head is sharp on mobile tower top?

1540


If a transformer primary winding operates at 240v, the secondary at 120v and the load is 1500w & the transformer is rated at 92% efficient, what's the current flowing through the primary winding of the transformer? What is the formula for finding this?

1737


In Power cable specification what is U0/U and Um.

3219


if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please

1597


What is resolution of a measurement?

732


In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

1597


What is the use of iron core in a transformer?

641


what is the formula of starting current of 3phase and 1 phase motor???

1721


what is effect of leading power facter on the system and billing

1786