What are the specifications of transformer?
What are the specifications of transformer?
Power Transformer Specifications
- Phase is 3Ø
- Frequency if 60Hz,50Hz.
- Primary Voltage is 22.9 kV.
- Secondary Voltage is 6.6/3.3 kV.
- Tap Voltage 23.9-R22.9-21.9-20.9-19.9kV.
- Vector Dd0, Dyn11, etc.
What does dyn 11 mean?
Dyn 11 means that the voltage of the secondary star winding lead the primary phase voltage by 30 degree and it corresponds to 11 o’clock.
What is meant by Dy11?
As in your case, Dy11 means that. the high voltage winding of the transformer is in delta connection. the low voltage winding of the transformer is star connected. Digit 11 means 330 degrees lagging or 30 degrees leading ( LV leads HV with 30 degrees).
What is Octc in transformer?
Off Circuit Tap Changer (OCTC means a device provided on high voltage side of transformer, which is used for variation of voltage during OFF condition of the transformer.
How many amps is 30kva?
kVA To Amps Calculator (With Table)
| kVA (Apparent Power) | Voltage (220 V) | Amperage (A) |
|---|---|---|
| How many amps is 5 kVA? | 220 V | 22.73 Amps |
| How many amps is 10 kVA? | 220 V | 45.45 Amps |
| How many amps is 20 kVA? | 220 V | 90.91 Amps |
| How many amps is 30 kVA? | 220 V | 136.36 Amps |
Why Dyn11 is used in distribution transformer?
Dyn11 transformer is widely used because in the transmission of power, at some points voltage is stepped up and at some times voltage is stepped down. So to make the system highly efficient, delta winding is used at L.V. side while star is used at H.V. side.
What is the full form of dy11 in transformer?
Dy11 is the vector group of 3 phase transformer. D- stands for delta – in HV side. y – stands for star- in LV side. 11 stands for arms of the clock at 11 position which depicts LV side leads HV side by 30 degree.
What is the difference between DY1 and dy11?
In Dy1 = primary winding is in delta and secondary is in star connection and HV winding leads LV winding by 30 degree. In Dy11 = primary winding is in delta and secondary is in star connection and LV winding leads HV winding by 30 degree.
What is the meaning of the phasor dy11 in a clock transformer?
Dy11 is the vector group of 3 phase transformer. 11 stands for arms of the clock at 11 position which depicts LV side leads HV side by 30 degree The phasor can be verified from text books. All the best. 25 insanely cool gadgets selling out quickly in 2021.
What is the vector group of a transformer dyn1?
This configuration belongs to the vector group of transformer Dyn1 where the LV lags the HV by 30°. Figure 4. Delta primary, wye secondary with neutral. The LV lags the HV side by 30°. Study the Delta Connection and you’re on your way to mastering the most common Transformer Vector Groups! Notice how the HV winding is connected in figure 4.
