Circuit Breaker Abstract essays

Circuit Breaker Abstract essays A circuit breaker was examined to determine how it works. Basically, it is designed to disconnect the current if the current passing through the breaker is higher than the allowable current. Its main parts consist of a switch, connecting pads, and the disconnect device. Since the breaker consists of many individual parts, the only improvement found was to combine some of the parts into a single part. Our group dissected a thirty-amp household Circuit-breaker. Its purpose is to protect electrical appliances from being damaged though excessive currents. A circuit breaker limits the amount of current that may safely enter a household electrical system via a predetermined amperage rating. It is placed in series between your house and the provided electricity. Any current in excess of the rated current amount will trip the circuit breaker in to a non-conducting or open path condition. The closed path is maintained until either magnetism or thermal expansion causes the circuit The circuit breaker has several features that are worth noting in the design discussion. First is its ability to detect various types of loading situations. The breaker can not only open a circuit in response to a current spike, but can also react to a sustained moderate current draw, just above its rated current. The circuit breaker also has an easily resetable 3-position switch, and various internal safety features such as Operation of the circuit breaker is simple, but utilizes complex mechanisms. Essentially there are to main internal mechanisms; the trigger and the switch. The trigger is the device that senses the abnormal current load. A sharp spike in current will cause a magnetic field to form in the trigger, releasing the switch. A slightly elevated, but more constant current draw through the breaker will cause the bi-metal composition of ...

About the United States Attorneys

About the United States Attorneys The United States Attorneys, under the direction and supervision of the Attorney General, represent the federal government in courtrooms across the entire nation. There are currently  93 U.S. Attorneys based throughout the United States, Puerto Rico, the Virgin Islands, Guam, and the Northern Mariana Islands. One United States Attorney is assigned to each of the judicial districts, with the exception of Guam and the Northern Mariana Islands where a single United States Attorney serves in both districts. Each U.S. Attorney is the chief federal law enforcement officer of the United States within his or her particular local jurisdiction. All U.S. Attorneys are required to live in the district to which they are appointed, except that in the District of Columbia and the Southern and Eastern Districts of New York, they may live within 20 miles of their district. Established by the Judiciary Act of 1789, the United States Attorneys have long been a part of the countrys history and legal system. Salaries of the U.S. Attorneys   Salaries of U.S. Attorneys are currently  set by the Attorney General. Depending on their experience, U.S. Attorneys can make from about $46,000 to about $150,000 a year (in 2007). Details on the current salaries and benefits of U.S. Attorneys can be found on the Web site of the Department of Justices Office of Attorney Recruitment and Management. Until 1896, U.S. Attorneys were paid on a fee system based on the cases they prosecuted. For attorneys serving coastal districts, where the courts were filled with maritime cases dealing with seizures and forfeitures involving expensive shipping cargo, those fees could amount to quite a substantial sum. According to the Justice Department, One U.S. Attorney in a coastal district reportedly received an annual income of $100,000 as early as 1804. When the Justice Department began regulating the salaries of the U.S. Attorneys in 1896, they ranged from $2,500 to $5,000. Until 1953, the U.S. Attorneys were allowed to supplement their incomes by retaining their private practice while holding office.   What the U.S. Attorneys Do The U.S. Attorneys represent the federal government, and thus the American people, in any trial in which the United States is a party. Under Title 28, Section 547 of the United States Code, the U.S. Attorneys have three main responsibilities: prosecution of criminal cases brought by the federal government;prosecution and defense of civil cases in which the United States is a party; andcollection of money owed to the government which cannot be collected administratively. Criminal prosecution conducted by U.S. Attorneys includes cases involving violations of the federal criminal laws, including organized crime, drug trafficking, political corruption, tax evasion, fraud, bank robbery, and civil rights offenses. On the civil side, U.S. Attorneys spend most of their courtroom time defending government agencies against claims  and enforcing social legislation such as environmental quality and fair housing laws. When representing the United States in court, the U.S. Attorneys are expected to represent and implement the policies of the U.S. Department of Justice. While they receive direction and policy advice from the Attorney General and other Justice Department officials, the U.S. Attorneys are allowed a large degree of independence and discretion in choosing which cases they prosecute. Prior to the Civil War, the U.S. Attorneys were allowed to prosecute those crimes specifically mentioned in the Constitution, namely, piracy, counterfeiting, treason, felonies committed on the high seas, or cases resulting from interference with federal justice, extortion by federal officers, thefts by employees from the United States Bank, and arson of federal vessels at sea How U.S. Attorneys are Appointed U.S. Attorneys are appointed by the President of the United States for four-year terms. Their appointments must be confirmed by a majority vote of the U.S. Senate. By law, U.S. Attorneys are subject to removal from their posts by the President of the United States. While most U.S. Attorneys serve full four-year terms, usually corresponding to the terms of the president who appointed them, mid-term vacancies do occur. Each U.S. Attorney is allowed to hire and fire Assistant U.S. Attorneys as needed to meet the case load generated in their local jurisdictions. U.S. Attorneys are allowed wide authority in controlling the personnel management, financial management, and procurement functions of their local offices. Prior to enactment of the Patriot Act Reauthorization Bill of 2005, on March 9, 2006, mid-term replacement U.S. Attorneys were appointed by the Attorney General to serve for 120 days, or until a permanent replacement appointed by the president could be confirmed by the Senate. A provision of the Patriot Act Reauthorization Bill removed the 120-day limit on the terms of interim U.S. Attorneys, effectively extending their terms to the end of the presidents term and bypassing the U.S. Senates confirmation process. The change effectively extended to the president the already controversial power of making ​recess appointments in installing U.S. Attorneys.