Question: A three-phase transformer is rated (1000 mathrm{MVA}, 220 mathrm{Y} / 22 Delta mathrm{kV}). The Y-equivalent short-circuit impedance, considered equal to the leakage reactance, measured on

A three-phase transformer is rated $1000 \mathrm{MVA}, 220 \mathrm{Y} / 22 \Delta \mathrm{kV}$. The Y-equivalent short-circuit impedance, considered equal to the leakage reactance, measured on the low-voltage side is $0.1 \Omega$. Compute the per-unit reactance of the transformer. In a system in which the base on the high-voltage side of the transformer is $100 \mathrm{MVA}, 230 \mathrm{kV}$, what value of the per-unit reactance should be used to represent this transformer?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Systems Analysis Design Questions!

TIM produces and sells two products, the MK and the KL. The organisation expects to sell 2 MK for every 2 KLs and have monthly sales revenue of GHe150,000. The MK has a C/S ratio of 20% whereas the...

Three identical single-phase transformers each rated at 100 kVA, 7 kV/3.5 kV are joined together as a three phase transformer bank. The high voltage sides are connected in delta and the low voltage...

4. [-/1 Points] DETAILS MY NOTES SMITHPOW10 7.2.050. Suppose you purchase a refrigerator for $1,235 and make payments of $58.94 per month for 2 years. What is the total amount of interest paid? $...

Three single phase transformers are used to form a three-phase transformer bank rated 13.8kV (delta)/120kV (wye). One side of the transformer bank is connected to a 120kV transmission line, and the...

A three-phase transformer is rated 500 M V A , 220 Y / 22 k V 500 M V A , 220 Y / 22 k V . The wye-equivalent short-circuit impedance, considered equal to the leakage reactance, measured on the...

A Three-phase transformer is rated 400 MVA, and 220/22 (Wye-Delta) kV. The Wye equivalent short-circuit impedance measured on the low-voltage side of the transformer is 0.121 2. Determine the per...

In the short circuit test of a 1600 kVA, 15000/400 V star-delta connected three-phase transformer at rated power, the primary voltage was measured as 900 V and copper losses as 14500 W. Of the...

A three - phase transformer bank rated at 6 0 0 kVA with a voltage ratio of 3 4 . 5 kV to 1 3 . 8 kV is connected in four configurations: ( a ) Y - Y , ( b ) Y - \ Delta , ( c ) \ Delta - Y , ( d ) \...

You are required to perform the following: (1)Draw the one-line diagram of the distribution system under analysis. Name all components. (2)Calculate the short-circuit impedance of the infinite bus....

Three single-phase, 78 kVA, 19.05 kV/415 V, 50 Hz transformers are connected to form a threephase transformer bank as shown in Figure 1. As shown in Figure 1, three 78kva, 19.05kV / 415V, 50hz...

What's wrong with this code? onvert between Arabic, base ten numbers, and Roman numerals. The Roman number system has the digits I, V, X, L, C, D, and M. Numbers are formed according to the following...

CBD Inc., a processor of CBD oils, has asked you to help it determine a bid price for a RFQ (Request for Quotation) it has received from the Province of BC. The Province is looking for a Licensed...

15. Company Reputation and Management Quality Survey. The Wall Street Journal Annual Corporate Perceptions Study surveyed readers and asked how they rated the quality of management and the reputation...

The coefficient measures the specific risk of a security. True or false? AppendixLO1

Rework problem 12.19 except assume the $1000 \mathrm{MW}$ value also includes losses, and that the penalty factor for the first unit is 1.0 , and for the second unit 0.95 . Data From Problem...

Rework problem 12.19 except assume that the limit outputs are subject to the following inequality constraints: \[\begin{aligned}& 200 \leq \mathrm{P}_{1} \leq 800 \mathrm{MW} \\& 100...

The fuel-cost curves for two generators are given as follows: \[\begin{aligned}& \mathrm{C}_{1}\left(\mathrm{P}_{1} ight)=600+15 \cdot\mathrm{P}_{1}+0.05 \cdot\left(\mathrm{P}_{1} ight)^{2}...

Convert the following problems into languages and then create a Turing maching for the language. 1. The problem of determining whether a regular expression does not generate a specific string. 2. The...

Consider a 10-year bond with a face value of $1,000, a coupon rate of 6 per cent (with semi-annual coupon payments), and a yield-to-maturity of 7 percent per annum. What is the market price of the...

When checking for a paragraph unity,you should be concerned with which of the following factors?check all that apply.