To prevent the mal operation of a differentially connected
relay while energizing a transformer, the relay restraining
coil is baised with
(a)second harmonic current
(b)fifth harmonic current
(c)third harmonic current
(d)seventh harmonic current
Answers were Sorted based on User's Feedback
what is the use of reactive power
why are laminations used in constructing the field core?
voltmeter kya hota hy ?
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
why extension in transmission tower is made?
what is full wave bridge?
why does spark appears when we swith on the light
For Eg a 30 kw motor at full load how much kw it takes And at no load how much KW it will take?
Why Human body feel Electric shock ?? n in an Electric train during running , We didnt feel any Shock ? why
13 Answers Lovely Professional University, NTPC,
if 40 watt bulb has higher resistance then a 100watt bulb then according to joul farmula p=I^2R the 40 watt bulb more power consume then 100 watt bulb.
why do we prefer alternating current in india where as in USA prefers DC?
what is rated voltage?