what is impedence (Z) of transformer, what indicate in
transformer , which perameter indicate in transformer

Answer Posted / s.arunkumar

transformer is always interposed between a primary source
of energy and a secondary that makes use of that energy.
Hence, the transformer constitutes an impedance to current
flow from source to load. The higher that impedance, the
more voltage drop will occur for a given load current. If a
secondary fault occurs, its effect on the circuit will be
lessened to the extent that transformer impedance
increases. The circuit designer therefore needs to know the
value of transformer impedance.

Is This Answer Correct ?    2 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

1797


Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

1516


Connection diagram for KW meter and  Kva meter

1772


What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

1748


Which thing is maximum in RLC circuit at resonance a)power consumption b)inductive current c)capacitive voltage

1317






Why do we perform an open-circuit test and short-circuit test on the transformer?

615


How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...

1467


IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?

1417


what is earth resistance? how to measured? and give values at power station and mcc area?

1499


hi, in the event earth grounding is not available in a project, is there any other way to make the elcb work? fyi, i have an instant water heater (6.5kw) installed, however if there is grounding in the heating element inside the heater assembly, i will get grounded. thank you in advance to those who will answer my question.

1506


What is the differentional relay...what is the work of this in power Tx. how it is works..

1432


can we make a electric generator,which can not use any type of fuel,air,solar,gas,thermal,coal,petrol,etc and able to produce electrical energy (or self electricity generating generator)

1487


1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?

1705


Dear sir, I completed DECE In the year 1995.Now i am working in a private company from last 10 years as an Electrical supervisor.The company having a 1000 KVA transformer.Now i try to apply "C" Licence. I am eligible or not.If not eligible,pls give solution.

1270


list the type of vfd? wich is sutable for heating kiln?

1587