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What is the conductor size and turns for 415V to230V step down 2 KVA transformer?
This requires care because 415 v is usually a three-phase supply, while 230 v is usually single-phase. A 415 v three-phase has a line to neutral voltage of 240 v so a transformer might not be necessary.
The number of turns depend on the size of the magnetic core, a larger core requires fewer turns. but on the assumption of a 415/230 v single phase transformer, the currents in the primary and secondary would be 4.8 and 8.7 amps, and the wire sizes at 1000 amps/sq. inch would be 14 SWG enamelled for the primary and 12 SWG enamelled for the secondary (British wire sizes).
Further advice depends on whether an existing core is available and what size it is.
Another Answer
415/240 V was the standard nominal three-phase voltage used in the UK before the requirements of the European Union forced that standard to become 400/230 V. In fact, no actualchange took place, because the statutory allowable variation was changed from +/-6% to +6%/-10%, which meant that the UK was able to comply with the EU regulations, on paper, without making any physical changes whatsoever to the existing voltage levels!
So, I rather think the questioner is confusing three-phase and single-phase systems, when he or she thinks it's necessary to step 415 V down to the lower voltage when, in fact, both voltages are available from the secondary of a three-phase, star (wye) connected, system.
Any load will work perfectly well whether or not its nominal voltage is '240 V' or '230 V', because (taking the EU standard of 230 V) the nominal voltage is allowed to vary between 253 - 216 V. So a load with a rated nominal voltage of either 230 V or 240 V falls comfortably within these allowable limits.
Perhaps the questioner could get back to us and clarify his question?
What else can I help you with?
Can you use a 415v motor in a 240 v socket?
No you can't use a 415v motor in a 240 v socket.
Can a 415v 50hz motor run on 380v 50hz?
no
If a 6.6KV Motor run at 415V then what happen to its current and RPM?
Current shall increase while you apply 415V for operating it and will decrease the rpm to a much low level.
Can a 3 phase 415V- 1000V step up transformer operate correctly from 460V Ac supply without causing damage?
That's an 11% overvoltage (460/415), so this may be reaching the design limits of the transformer. If the system is actually run hot (say 105% of 460, or 480v), then I'd say no, unless specifically stated in test reports or design criteria. You should ask the manufacturer to be sure.
Can you convert 415v 3 phase to 230v single phase?
415V 3 phase is the line to line voltage. The line to neutral of this supply is 230V single phase. Therefore you use one of the phases and the neutral.
Can you get 110v from 415v?
Yes, you can step down 415V to 110V using a transformer. The transformer will reduce the voltage to the desired level, allowing you to power devices that require 110V. Be sure to use a transformer rated for the appropriate voltage conversion.
What are the application of core type transformer?
The main application for a core type transformer is to increase voltage from a standard 240v supply up to 415v instead of using a 3 phase supply.
Why is the transformer turns ratio test needed?
Turns ratio test is very important in order to find out that the transformer has the right ratio corresponding on its rated voltage in primary and secondary. For example, three phase transformer is subjected to turns ratio test when each phase has equal turns ratio then the transformer is balance.The test is performed to ensure that overheating or overcurrent conditions have not shorted turns in the transformer windings, which would distort the desired output or input voltage. This test is particularly important for instrument transformers, i.e. CTs and PTs which are connected to protective relays. These relays are extremely sensitive, and operate on very small fluctuations in secondary voltage or current. Shorted turns in these transformers can lead to big problems if they cause the relay to operate abnormally, or not at all.
Can you give 415v supply to 380v winded motor?
No. you cannot connect a 415 V to a 380 V motor. in case if you want to do that, you need to increase the number of turns in all the three phases of winding as per the turns calculation.
Can you use a 415v motor in a 240 v socket?
No you can't use a 415v motor in a 240 v socket.
What is the acceptable value of contact resistance in 415V air circuit breaker?
415v air circuit breaker acceptable value of 0.01 ohms and lessthan
How do you connect a 230V lamp to a 415V supply with no neutral?
Theoretically, you could connect three identical lamps in star (wye) and connect this to the three line conductors. But as you asked how to connect a (single) 230-V lamp to the supply, then the answer is by using a step-down transformer.
How do you find out magnatising current of transformer?
apply 3 phase voltage(415V) to the winding whose magnetising current is to be found and open circuit another winding. now measure current using tong tester or connecting an ammeter in series between supply and winding.
Can a 415v 50hz motor run on 380v 50hz?
no
If a 6.6KV Motor run at 415V then what happen to its current and RPM?
Current shall increase while you apply 415V for operating it and will decrease the rpm to a much low level.
What is a dimmer stat what is its main use and function?
The basic dimmerstat is meant for operation from a nominal input voltage of 240v 1ph ac & can give output voltage anywhere between 0 to 240v or 0 to 270v ac by simple transformer action. Three such dimmerstats connected electrically in star and mechanically in tandem, become suitable for operation from a nominal input voltage of 415v 3ph ac and can give output anywhere between 0 to 415v or 0 to 470v.
Can a 3 phase 415V- 1000V step up transformer operate correctly from 460V Ac supply without causing damage?
That's an 11% overvoltage (460/415), so this may be reaching the design limits of the transformer. If the system is actually run hot (say 105% of 460, or 480v), then I'd say no, unless specifically stated in test reports or design criteria. You should ask the manufacturer to be sure.
