# Is the Delta current <30 degrees or not?

• tim9000
In summary, The line voltage for a WYE connection is √3*Vphase<30degrees and the line current for a delta connection is √3*Iphase. The line current lags by 30 degrees to the phase current in the WYE case and this means that the line current is in the negative direction at an angle of -30 degrees.
tim9000
The internet is really nebulous sometimes, I was looking and couldn't find the answer. I know that the line voltage is √3*Vphase<30degrees
for a WYE.

and that line current = √3*Iphase
for a delta connection. But is that line current 30 degrees out of phase to the phase current?
As the voltage is in the WYE case.
Thanks

Yes, the line current lag by 30 degree to the phase current.

nitishsharmabit said:
Yes, the line current lag by 30 degree to the phase current.
Ah, ok thanks.

P.S. actually, since you said lag does that mean <-30 deg?
(negative thirty degrees)

Yes that's what I meant.
Line current= sqrt(3)* phase current <-30

## 1. What is the Delta current and how is it measured?

The Delta current is a term used to describe the difference in electric current between two points. It is typically measured in degrees using a device called an ammeter.

## 2. Is the Delta current always less than 30 degrees?

No, the Delta current can vary greatly depending on the specific circumstances and electrical systems being measured. It is not always less than 30 degrees.

## 3. What factors can affect the Delta current?

The Delta current can be affected by a variety of factors, including the type of electrical system, the amount of current flowing, and the resistance of the components in the system.

## 4. Why is it important to know if the Delta current is less than 30 degrees?

Knowing the Delta current can help determine if there are any issues or imbalances in an electrical system. A low Delta current can indicate efficiency and proper functioning, while a high Delta current may indicate problems such as overloading or faulty components.

## 5. How can the Delta current be improved if it is higher than 30 degrees?

If the Delta current is higher than 30 degrees, it may be necessary to identify and fix any underlying issues in the electrical system. This could include replacing faulty components, reducing the amount of current flowing, or improving the overall design and efficiency of the system.

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