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What should the transformer connection of a 11/220 kV step up
and 66/11 kV step down transformer ?
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What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?
iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.
The windings of a transformer are divided into several coils, because?
Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?
why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?
How can i get my certificate of competency as an electrical supervisor? I have complicated my B.Tech from Uttarakhand technical university this year (2012).
In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.
What current flows in the transformer primary when its secondary is open?
How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)
Classify milling machines.
What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).
What safety precaution are to be taken for avoiding electric hazards ?
i need about 10 years of GATE solved papers in pdf format and even mock tests toooo
pls someone send me sample question papers along with the key.thanks in advance
