Find Jobs
Hire Freelancers

Electrical Power Engineering

$10-30 USD

Закрито
Опублікований over 6 years ago

$10-30 USD

Оплачується при отриманні
Kindly find below two parts to be solved: Problem 1 Two single-phase transformers are connected open-Y open-Δ to provide power for a three-phase Y-connected 100-kVA load with a 0.80 lagging power factor and a 50-kVA single-phase load with a 0.90 lagging power factor, as shown in Figure 1. Assume that the primary-side voltage of the bank is 7620/13,200 V and the secondary-side voltage is 240 V. Using the given information, calculate the following: (a) The line current flowing in each secondary-phase wire. (b) The current flowing in the secondary winding of each transformer. (c) The kilovoltampere load on each transformer. (d) The current flowing in each primary-phase wire and in the primary neutral. Figure 1: open-Y open-Δ connection ========================= 1 Problem 2 Assume that a 250-kVA distribution transformer is used for single-phase pole mounting. The transformer is connected phase-to-neutral 7200 V on the primary, and 2520 V phase- to-neutral on the secondary side. The leakage impedance of the transformer is 3.5%. Based on the given information, determine the following: (a) Assume that the transformer has 0.7 pu A in the high voltage winding. Find the actual current values in the high- and low-voltage winding. What is the value of the current in the low-voltage winding in per units? (b) Find the impedance of the transformer as referred to the high- and low-voltage windings in ohms. (c) Assume that the low-voltage terminals of the transformer are short-circuited and 0.22 puV is applied to the high-voltage winding. Find the high- and low-voltage winding currents that exist as a result of the short circuit in pu and amperes. (d) Determine the internal voltage drop of the transformer, due to its leakage impedance, if a 1.2 pu current flows in the high-voltage winding. Give the result in pu and volts.
ID проекту: 15447770

Про проект

17 пропозицій(-ї)
Дистанційний проект
Активність 6 yrs ago

Хочете заробити?

Переваги подання заявок на Freelancer

Вкажіть свій бюджет та терміни
Отримайте гроші за свою роботу
Опишіть свою пропозицію
Реєстрація та подання заявок у проекти є безкоштовними
17 фрілансерів(-и) готові виконати цю роботу у середньому за $35 USD
Аватарка користувача
A proposal has not yet been provided
$25 USD за 1 день
4,9 (45 відгуки(-ів))
5,7
5,7
Аватарка користувача
Electrical engineer here to help u buddy..I am an electrical power engineer and can help u regarding your questions Relevant Skills and Experience Electrical engineering Proposed Milestones $40 USD - required work
$40 USD за 1 день
4,9 (39 відгуки(-ів))
5,5
5,5
Аватарка користувача
Hi,sir I read your project description very carefully. I am very interested in your project. Relevant Skills and Experience I have full skills for your project. I have the Master's degree of power electronics. Thanks Proposed Milestones $25 USD - primary
$25 USD за 1 день
4,9 (16 відгуки(-ів))
4,2
4,2
Аватарка користувача
I will solve mentioned two problems. Please check my profile. Relevant Skills and Experience I am professional Power System Engineer having strong expertise all sort of calculations in power systems. Proposed Milestones $80 USD - Full Milestone I have done same kind of projects.
$80 USD за 1 день
4,8 (15 відгуки(-ів))
4,5
4,5
Аватарка користувача
Hello, I'm an electrical engineer and an expert in electrical machines and power systems and I'm very interested in your project Relevant Skills and Experience Electrical engineer with expertise and experience in solving electrical machines questions for 3-phase machines Proposed Milestones $50 USD - complete and typed solutions Let's discuss the details.
$50 USD за 1 день
5,0 (3 відгуки(-ів))
3,1
3,1
Аватарка користувача
I have high grade masters of electrical and electronic engineering. I promise to submit professional and high quality work and before deadline. I always satisfy my clients to 100 percent. Relevant Skills and Experience electrical and electronic engineering Electrical machines power systems network circuit theory Proposed Milestones $24 USD - 1day
$24 USD за 1 день
0,0 (0 відгуки(-ів))
0,0
0,0
Аватарка користувача
GRADUATED IN EEE Relevant Skills and Experience Working in this field
$30 USD за 1 день
0,0 (0 відгуки(-ів))
0,0
0,0
Аватарка користувача
ELECTRICAL ENGINEER Relevant Skills and Experience can solve this problem easily Proposed Milestones $15 USD - solving
$15 USD за 1 день
0,0 (0 відгуки(-ів))
0,0
0,0
Аватарка користувача
I m Electrical Engineer with specialization in Electrical Power i will do your task 100%. Relevant Skills and Experience Electrical Engineer with specialization in Electrical Power Proposed Milestones $45 USD - 1 day
$45 USD за 1 день
0,0 (0 відгуки(-ів))
0,0
0,0
Аватарка користувача
I'll solve them Relevant Skills and Experience I'm an electrical engineer. I'm working in electricity from 3 years ago. I have agood experience in this.
$25 USD за 2 дні(-в)
0,0 (0 відгуки(-ів))
0,0
0,0
Аватарка користувача
A proposal has not yet been provided
$25 USD за 1 день
0,0 (0 відгуки(-ів))
0,0
0,0
Аватарка користувача
I can solve your question. Relevant Skills and Experience electrical engineering Proposed Milestones $20 USD - 1st
$20 USD за 1 день
0,0 (0 відгуки(-ів))
0,0
0,0
Аватарка користувача
The two exercises resolved are delivered, with calculation memory connection diagrams Habilidades y experiencia relevante I am an electrical engineer, with extensive experience in this type of calculations. Serious and responsible. I collect cheap because I'm starting as a freelancer and I want to know me Htos propuestos $25 USD - Un primer pago contraentrega del documento definitivo
$25 USD за 2 дні(-в)
0,0 (0 відгуки(-ів))
0,0
0,0

Про клієнта

Прапор UNITED ARAB EMIRATES
Sharjah, United Arab Emirates
5,0
8
Спосіб оплати верифіковано
На сайті з черв. 22, 2016

Верифікація клієнта

Дякуємо! Ми надіслали на вашу електронну пошту посилання для отримання безкоштовного кредиту.
Під час надсилання електронного листа сталася помилка. Будь ласка, спробуйте ще раз.
Зареєстрованих користувачів Загальна кількість опублікованих робіт
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Завантажуємо для перегляду
Дозвіл на визначення геолокації надано.
Ваш сеанс входу закінчився, і сеанс було закрито. Будь ласка, увійдіть знову.