Conductor insulation and surge arrestors must be rated based on the line to-line voltage. Phase-to- neutral...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Conductor insulation and surge arrestors must be rated based on the line to-line voltage. Phase-to- neutral loads must be served through an isolation transformer. Used: Up to 400 amps for 10 sec are commonly found on medium voltage systems. B)High Resistance Grounded: High resistance grounding is almost identical to low resistance grounding except that the ground fault current magnitude is typically limited to 10 amperes or less. High resistance grounding accomplishes two things. The first is that the groundfault current magnitude is These estimated charging currents increase if surge suppressors are present. Each set of suppressors installed on a low voltage system results in approximately 0.5 A of additional charging current and each set of suppressors installed on a 4.16kV system adds 1.5 A of additional charging current. A system with 3000KVA of capacity at 480 volts would have an estimated charging current of 1.5A.Add one set of surge suppressors and the total charging current increases by 0.5A to 2.0A. A standard 5A resistor could be used on this system. Most resistor manufacturers publish detailed estimation tables that can be used to more closely estimate an electrical system's charging current. Advantages: Question4/ Combine the following two chromosomes using the PMX method to form two new children (cut points) (r1=2) and (r2=6) Suppose indicators start from zero Chromosome 1 Chromosome 2 9 1 4 5 42 53 3 7 4 85 96 27 3 1 9 38 8 Conductor insulation and surge arrestors must be rated based on the line to-line voltage. Phase-to- neutral loads must be served through an isolation transformer. Used: Up to 400 amps for 10 sec are commonly found on medium voltage systems. B)High Resistance Grounded: High resistance grounding is almost identical to low resistance grounding except that the ground fault current magnitude is typically limited to 10 amperes or less. High resistance grounding accomplishes two things. The first is that the groundfault current magnitude is These estimated charging currents increase if surge suppressors are present. Each set of suppressors installed on a low voltage system results in approximately 0.5 A of additional charging current and each set of suppressors installed on a 4.16kV system adds 1.5 A of additional charging current. A system with 3000KVA of capacity at 480 volts would have an estimated charging current of 1.5A.Add one set of surge suppressors and the total charging current increases by 0.5A to 2.0A. A standard 5A resistor could be used on this system. Most resistor manufacturers publish detailed estimation tables that can be used to more closely estimate an electrical system's charging current. Advantages: Question4/ Combine the following two chromosomes using the PMX method to form two new children (cut points) (r1=2) and (r2=6) Suppose indicators start from zero Chromosome 1 Chromosome 2 9 1 4 5 42 53 3 7 4 85 96 27 3 1 9 38 8
Expert Answer:
Related Book For
Statistics For Business And Economics
ISBN: 9780538481649
11th Edition
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
Posted Date:
Students also viewed these accounting questions
-
The thermal insulation used in building is commonly rated in terms of its R-value, defined as d/k, where d is the thickness of the insulation in inches and k is its thermal conductivity. In the...
-
If a current passes through a resistor with resistance R, Ohm's Law states that the voltage drop is V = RI. If V is R constant and is measured with a certain error, use differentials to show that the...
-
An electrical conductor designed to carry large currents has a circular cross section 2.50 mm in diameter and is 14.0 m long. The resistance between its ends is 0.104 n. (a) What is the resistivity...
-
Terrance is a 13-year-old 8th grader, who is an average student. He is rarely ever disruptive in class and gets along well with his peers. His teacher always noticed that he was normally high-strung,...
-
According to the research of Professor Gregory Clark of the University of California, Davis, the level of real wages for laborers in England was nearly the same in 1200 as it was in 1800. Yet, during...
-
The income statement for a British company, Avon Rubber plc, is presented as follows. Avon prepares its financial statements in accordance with IFRS. Instructions a. Review the Avon Rubber income...
-
Discuss how informal leaders within the organization might be used to increase user acceptance.
-
On page 243, we presented a frequency distribution for data on chest circumference, in inches, for 5732 Scottish militiamen. As mentioned there, Adolphe Quetelet used a procedure for fitting a normal...
-
Selected transactions for Carla Vista Corporation during its first month in business are presented below. Sept. 1 Issued common stock in exchange for $ 2 1 , 8 0 0 cash received from investors. 5...
-
Background: In the initial contract negotiation stage, the contract price with SM was $10.1 million in cash. However, as part of the final contract negotiations, SM agreed to give EYE SPY its old...
-
The Cilia are hair like structures that line the nose and help to protect the respiratory tract from dust and foreign particles. A medical team obtained specimens of nasal tissue from nursery school...
-
State whether or not each of the following events would result in a liability being recognised in the accounts at 30 June. If so, what will the liability be called? If not, explain the reasons why it...
-
MNO Ltd purchased a one-year insurance policy on 1 April. The entire premium of $6000 was recorded by debiting prepayments. Year-end is 30 June. 1. Give the 30 June adjusting entry. 2. What amount...
-
1. In a recent annual report the following information is provided: Assume this amount all related to insurance and that $70 million cash was paid during the year to the insurance company. What is...
-
Now that you are a famous businessperson, you are frequently asked to make after-dinner speeches on business topics. Without thinking about it too much, you agreed to make a speech on accrual...
-
The balance sheet of ABC Ltd as at 31 December 2015 and the cash receipts and payments for the year ended 31 December 2016 are shown below. Additional information: a. As at 31 December 2016, the...
-
2. Firm ABC has based on nominal interest rate to compute and pay the interest payment because of its debt amount. Moreover, the firm has purchased an asset and use the Double Declining Balance Model...
-
A consultant is beginning work on three projects. The expected profits from these projects are $50,000, $72,000, and $40,000. The associated standard deviations are $10,000, $12,000, and $9,000....
-
The Ladies Professional Golfers Association (LPGA) maintains statistics on performance and earnings for members of the LPGA Tour. Year-end performance statistics for the 30 players who had the...
-
The American Bankers Association collects data on the use of credit cards, debit cards, personal checks, and cash when consumers pay for in-store purchases (The Wall Street Journal, December 16,...
-
State whether each of the following variables is categorical or quantitative and indicate its measurement scale. a. Annual sales b. Soft drink size (small, medium, large) c. Employee classification...
-
What is the pro forma statement, and how important is it for a business?
-
Briefly compare replacement value to liquidation value of an asset.
-
Briefly describe what quality control is all about, and explain the three statistical types of control.
Study smarter with the SolutionInn App