Interested to Buy Any Domain ? << Click Here >> for more details...
how can we find a burden of potential transformer? what
does it effects? how can we calculate rated load of it?
- 4 Answers
- 34842 Views
- Areva, KPTCL, I also Faced
- E-Mail Answers
Answer Posted / raghavendran
Burden CAn be denoted in VA or in Ohms.Consider that to a PT
secondary we have a relay connected to it.Now the Total
impedance on the PT secondary is given by Zt = Zsec + Zlead
+ Zrelay.where the Zsec is the impedance of the PT
Secondary,Zlead be the impedance of the lead between the PT
secondary and the Relay,Zrelay be the Impedance of the relay.
Now from the VA capacity of the PT,under normal operating
condition of the PT,calculate the secondary current, Isec.
burden interms of VA can be obtained as Zt*Isec.
Burden interms of Ohms can be had from - Rated
VA/((Isec)*(Isec))
As Burden increases beyond the prescribed value, the
accuracy decreases below the allowable value.
| Is This Answer Correct ? | 30 Yes | 2 No |
Post New Answer View All Answers
What is class ab operation?
how can decide the current rating of oltc
what is meant by poly phase induction motor ? how its operating by single phase or three phase?
What is pi controller?
Metal covered multiconductor cables shall employ a marker tape located within the cable running for its complete length in lieu of cable surface marking. Is it true or false?
i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh
who many types of fire explane with exmple
WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI
What is the Surge suppresor? Why using in a UDB's and How it works?
What are safety device in vcb and acb?
What is the effect of positive feedback on stability of the system?
How many devices can be connected in one zone of FACP
What is the tube exial fan?
5.WHICH TYPE WELDING PROCESSES USES NON CONSUMABLE ELECTRODE.........
What will happen if the voltage in my house drops from 220V to any lower voltage?
