CONSIDER A 415V/200V STEP DOWN TRANSFORMER.CAN WE USE USE
IT AS STEP UP TRANSFORMER BY GIVING 200V IN SECONDARY AND
TAKING OUTPUT FROM PRIMARY?
Answer Posted / sadananda
Dear Mr Akialok,
I think, the answer what you have given is not completely
right.As the VA ratting is not going to change in the
transformer, the max current in primmary & secondary will
remain same in whatever way you use.
For example: For 1 KVA 220 V to 110 V trafo, Max primary
current I1=1000/220 = 4.55 A & Max Seconday current
I2=1000/110 = 9.09 A.
So even if you reverse the source voltage, in any way you
can not use for more power.
Please reply for clarification.
Sadananda
| Is This Answer Correct ? | 27 Yes | 1 No |
Post New Answer View All Answers
what are the difference between PLC and embedded
What is use of starter and choke in tube light
If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables
what's the simultenous maximum demand (SMD)..what the diffrent MD and SMD?
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.
If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?
What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?
WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.
What are unstable systems?
why h parameter are called as hybrid parameter?
how much excitation voltage required to generate 1mw power?
what is the use of Auto re-closer?
What is reactive power and where it is used.
I want to know Electrical Circuit?