Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / bhavsar.malay
because of this two reasons..
1)transformer works on principle of electromagnetic
induction...
hense,there is no change in the voltage source with respect
to time so, there won't be induced of emf in either of the
coil...
and so there won't any output appearing on the secondary..
EFFICIENCY=0
2)if the DC suppluy is given the there may be POSSIBILITY
OF THE SATURATION OF CORE MATERIAL WHICH MAY CAUSE DAMAGE
TO TRANSFORMER...
hence for dc supply transformer can not work,
and for just testing purpose only dc supply is given up to
certain ranges..
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com
Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?
in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.
what you have to see after one week or month from the day of installation of transformer ?
working principle of AC Servo Motor with its construction
Whether the vacuum contactor requires Short circuit protection?If No,why?
how to calculate transformer turn primary & secondary side 11kv to 420v
plz tell me,ht and lt panel terminals in substations explain beiefly
What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating
WHAT IS SUBSTATION & ACCORDING TO VOLTAGE HT,EHT SUBSTATION EXPLAIN IT
What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection
What are high pass filter and low pass filter? and What are the flowmeter ?
Is there chopping current in resistive circuit
How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?
I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?
