3 phase joining in series, possible?

In summary, the conversation discusses the possibility of connecting two 3 phase currents in series to increase the voltage for a brushless motor. However, it is not possible to connect the phases of a 3 phase supply in series as they are joined at the neutral. This is similar to connecting batteries in series, which would result in a short circuit. It is also mentioned that the voltage between phases in a 3 phase system is 1.73 times the individual phase voltage, making it unnecessary to connect them in series. The speaker also advises against attempting to connect anything to a 3 phase circuit without proper knowledge.
  • #1
Oxieee
8
0
3 phase joining in series, possible??

Hello good people.

I need to run a brushless motor on an esc but the equivalent speed controller is three times the price of motor.

I was wondering if it is possible to connect TWO output 3 phase current in series in an effort to stack up the voltage together.

Thanx alot...have no idea about 3 phase currents :P:P:P
 
Engineering news on Phys.org
  • #2


cant understand your query ...
 
  • #3


No, you can't connect the phases of a 3 phase supply in series because they are joined at the neutral.

Take this example with batteries,

[PLAIN]http://dl.dropbox.com/u/4222062/Batteries%20in%20series.PNG

The negative terminals of the batteries are joined together (with the black wire at the bottom), and to connect them in series would mean connecting the red wire as shown.

This would short out the left battery.

This is similar to the situation with 3 phase circuits.

However, the voltage between phases of a 3 phase system is 1.73 times the individual phase voltage and this isn't much less than twice the phase voltage.

If you have no idea about 3 phase circuits, you should definitely not be connecting anything to them.
 
Last edited by a moderator:

What is 3 phase joining in series?

3 phase joining in series is a method of connecting three alternating current (AC) power sources in a series circuit. This means that the three phases of the power supply are connected one after the other, resulting in a total of three connections.

What is the purpose of joining 3 phases in series?

The purpose of joining 3 phases in series is to increase the overall voltage of the circuit. This can be useful in industrial settings where high voltage is required to power large machinery.

Is it possible to join 3 phases in series?

Yes, it is possible to join 3 phases in series. However, it is important to ensure that the phases are balanced and have the same voltage and frequency to avoid any potential problems.

What are the potential benefits of joining 3 phases in series?

Joining 3 phases in series can result in a more stable and efficient power supply. It can also reduce the overall cost of the power supply system as it requires less wiring and equipment compared to other methods.

Are there any potential drawbacks to joining 3 phases in series?

One potential drawback of joining 3 phases in series is that if one phase fails, it can lead to a complete power outage. Additionally, this method may not be suitable for all types of electrical systems, so it is important to consult with a professional before implementing it.

Similar threads

Replies
2
Views
628
Replies
7
Views
1K
Replies
19
Views
2K
  • Electrical Engineering
Replies
26
Views
2K
  • Electrical Engineering
Replies
2
Views
590
Replies
3
Views
545
Replies
20
Views
2K
  • Electrical Engineering
Replies
6
Views
3K
Replies
14
Views
5K
Replies
3
Views
1K
Back
Top