Star or triangle? Connection of the motor depending on the markings.

Question

How to connect the engine. on the plate: triangle / star 230 / 400V 5.2 / 9.4 A How we connect the engine depending on the markings

kim · Accepted Answer

You have 2 rows of 2 pairs of clamps
something like that

* * *
* * *

And now the threesome is like this

* * *
| | |
* * *
L1 L2 L3

And in the star yes

* - * - *

* * *
L1 L2 L3

These little lines are jumpers (most often of such a small flat bar

kavma · Accepted Answer

Hello According to the markings you have given, this motor can work in a star connection in the network existing in our country (3 x 400V). greetings kavma

Aleksander_01 · Accepted Answer

Hello.
This motor can only run in a star - of course when powered directly from the 400 V mains.

There are single-phase inverters, at the output of which we get a wire voltage of 230 V - and it is with such an inverter that you connect the motor in a triangle, and its power and torque will not change.
greetings

piter · Accepted Answer

Motor power will be maintained for delta and star connection.
Direct switching of the motor under voltage in delta connection is not used due to the many times higher inrush currents
than in the case of "star" operation. If the engine load is, for example, a fan or a turbine, a star-delta switch is used during start-up. This protects the motor itself as well as the mains. Of course, the other protection elements are in place.

janhen · Accepted Answer

Hello
3-phase winding motor. rated for operation in a network with a voltage of 400V 50Hz, the rating plate may have a delta connection and a voltage of 400V (or 380V) and, if it has 6 terminals, it may be connected via a star / delta switch, while the motor with a star connection on the plate and the voltage of 400V (or 380V) cannot be connected through such a switch

warbipower · Accepted Answer

Signs : 230 / 400V - the engine can only work in a star, 400V - the motor works in delta, star / delta starting can be used 400 / 690V- the motor works in a delta at 400V or in a star at 690V. Can be used for star / delta starting. I recommend :

Witkacy8 · Answer

I know what this connection looks like, but I don't know if a given engine can work in a star or a triangle, and maybe in both ??

Witkacy8 · Answer

And what will the markings on the engine be when it can only work in a triangle or only in a star?

piter · Answer

Apart from the power supply from the inverter (attention - motors with a special design), the rating plate of the motor contains data about the speed, supply voltage and current. the engine can work with both connections, while maintaining the basic rules of control.

Aleksander_01 · Answer

What are you typing? Well, this motor you want to switch from star to delta. People, learn to read the engine nameplate. If you power this motor in a star, you will get 230V on each of its phases, and the same applies to the triangle. The value of the currents on the rating plate is different because they are line currents, while the phase currents will be the same in both cases. If you connected this motor in a delta to the 400 V power grid, its power would triple, but not the shaft power, but heat loss, in other words, only gray smoke from this motor would go. Who taught you so, in which commune do they teach you like that? greetings

kavma · Answer

Hello
Alexander_01
I was about to stop speaking because my answer and your "just in the star" takes care of this topic.
But you see what it's like when someone writes play for the sake of art.
And a commune is like a commune.
Mr. Witkacy8, I suggest you connect this engine, I advise you kavma with Aleksander_01 and close this topic.
greetings
kavma

Star or triangle? Connection of the motor depending on the markings.

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