Table of Contents
- 1 What is the voltage level on 11kV line?
- 2 How do you calculate transmission line power?
- 3 Why power generation is 11KV?
- 4 How is transmission line loss calculated?
- 5 How do you calculate voltage regulation on a 22kV line?
- 6 How much current can be produced from a 11kV generator?
- 7 What is the rating of a transformer in kVA?
What is the voltage level on 11kV line?
High voltage (HV) – means and voltage exceeding 1kV a.c. or 1.5kV d.c. Extra high voltage (EHV) means any voltage exceeding 220kV….Standard line voltages.
| Line Voltages | Usage |
|---|---|
| 6.6kV | Used for urban and rural HV distribution |
| 11kV | |
| 22kV | |
| 12.7kV (SWER) |
How do you calculate transmission line power?
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What does 1.732 mean?
1.732 = a constant necessary with 3 phase. In a three phase circuit, the use of the constant 1.732 results from the fact that not all three phases are producing the same amount of power at the same time. Each phase’s voltage and current move through zero at different times.
Why power generation is 11KV?
It is cheaper to generate at a relative lower voltage and then step it up for transmission. Hence, most power generating plants are designed to operate at 11KV. Therefore in order to compensate for this, the primary generation voltage would be; the required nominal voltage + transmission losses.
How is transmission line loss calculated?
The formula to calculate the line loss is P = I × V. If a current ‘I’ flows through a given element in your circuit, losing voltage ‘V’ in the process, then the power ‘P’ dissipated by that circuit element is the product of that current and voltage.
How do you calculate transmission load voltage?
The transmission line ends with a load impedance ZL. In the transmission line, the wave’s voltage is ZT times its current. But the load voltage must be ZL times the load current. If ZT = ZL, then the wave voltage will appear on the load and all the wave current will flow through the load.
How do you calculate voltage regulation on a 22kV line?
Voltage Regulation for 11KV, 22KV, 33KV Overhead Line. \% Voltage Regulation = (1.06 x P x L x PF) / (LDF x RC x DF) Where: P – Total Power in KVA. L – Total Length of Line from Power Sending to Power Receiving in KM.
How much current can be produced from a 11kV generator?
The initial or generating voltage is 11kV, you can calculate the amount of current that could be approximately produced from the generator with both of these constrain. As far as I have heard, the generator produces about 10,000 amperes of current before stepping up voltage by the step up transformer.
How do you calculate the current in a transformer?
Transformer current calculations: Transformer turns ratio, V(primary) * I(Primary) = V(secondary) * I(secondary) The primary voltage is equal to the product of the secondary voltage and primary current divided by secondary current.
What is the rating of a transformer in kVA?
In simple words, Transformer rating in kVA = 100 kVA Primary Voltages = 11000 = 11kV Primary Current = 5.25 A Secondary Voltages = 415V Secondary Current = 139.1 Amperes. Now calculate for the rating of transformer according to