Sir I want questions for rrb sec technician gr III
(electrical)
i have 3500 amp load and select current transformer and perches.how i calculate .please understand
If there is volagte between earth and neutral, what should be the reason ? and solution * What should be allowable limit in case, if the voltage between earth and neutral exist ? / OR what is limit for safe voltage between earth and neutral?
what is slip rings in an induction motor&what is it's work.
what is the form factor of DC?
why the single phse machine can not run by the three phase supply.
define as synchronous generator
At what voltage domestic tubelight works?
What is the diff. between two phase & three phase supply.
pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .
Is potential difference materials property ..? if yes tnen how.. explain brifly.
what is the formula to calculate the fault level current for any substation?
What is a variable speed motor?
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