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Roper Electronic Engineering Ltd have specialised in the design, manufacture and repair of Automatic Voltage Regulators for the last 15 years. Our main business is the manufacture of replacement AVR's for obsolete unit's and those for special applications. In addition to our own range, we also stock a number of other manufacturers models in common use, including those from Newage/Markon, Contrology, Basler, Leroy Somer, Mecc-Alte and Marelli/Ansaldo. We normally hold around 1000 units in stock at any one time for same day despatch, and custom built units can be supplied on short lead times. Our range covers AVR's for small 2 pole generators up to Static Exciters with excitation currents in excess of 100 amps, as well as AVR's for use with high tension machines up to 11Kv. Our designs include both thyristor phase controlled and transistor pulse width modulated types with accessories such as Power Factor Controllers and Diode Failure Indicators. We can also supply AVR's for DC generators. Other spare parts associated with generators, ie Paralleling C/T's, Rotating Diodes, Power Resistors/Rheostats and Volts Trim Potentiometers are also held in stock. Most other manufacturers AVR's can be repaired if not encapsulated, and a service exchange facility can be provided with certain models. With many years of experience in AVR's and generators, and in particular ECC/ECL, we are able to give advice and assistance for any technical problems which may be encountered. Engineering, term applied to the profession in which a knowledge of the mathematical and natural sciences, gained by study, experience, and practice, is applied to the efficient use of the materials and forces of nature. The term engineer properly denotes a person who has received professional training in pure and applied science, but is often loosely used to describe the operator of an engine, as in the terms locomotive engineer, marine engineer, or stationary engineer. In modern terminology these latter occupations are known as crafts or trades. Between the professional engineer and the craftsperson or tradesperson, however, are those individuals known as subprofessionals or paraprofessionals, who apply scientific and engineering skills to technical problems; Marine engineering is a specialized branch of mechanical engineering devoted to the design and operation of systems, both mechanical and electrical, needed to propel a ship. In helping the naval architect design ships, the marine engineer must choose a propulsion unit, such as a diesel engine or geared steam turbine, that provides enough power to move the ship at the speed required. In doing so, the engineer must take into consideration how much the engine and fuel bunkers will weigh and how much space they will occupy, as well as the projected costs of fuel and maintenance. also Ships and Shipbuilding. This branch of engineering is concerned with the design and construction of nuclear reactors and devices, and the manner in which nuclear fission may find practical applications, such as the production of commercial power from the energy generated by nuclear reactions and the use of nuclear reactors for propulsion and of nuclear radiation to induce chemical and biological changes. In addition to designing nuclear reactors to yield specified amounts of power, nuclear engineers develop the special materials necessary to withstand the high temperatures and concentrated bombardment of nuclear particles that accompany nuclear fission and fusion. Nuclear engineers also develop methods to shield people from the harmful radiation produced by nuclear reactions and to ensure safe storage and disposal of fissionable materials. Nuclear Energy. This field of engineering has as its object the prevention of accidents. In recent years safety engineering has become a specialty adopted by individuals trained in other branches of engineering. Safety engineers develop methods and procedures to safeguard workers in hazardous occupations. They also assist in designing machinery, factories, ships, and roads, suggesting alterations and improvements to reduce the likelihood of accident. In the design of machinery, for example, the safety engineer ks to cover all moving parts or keep them from accidental contact with the operator, to put cutoff switches within reach of the operator, and to eliminate dangerous projecting parts. In designing roads the safety engineer ks to avoid such hazards as sharp turns and blind intersections, known to result in traffic accidents. Many large industrial and construction firms, and insurance companies engaged in the field of workers compensation, today maintain safety engineering departments. Industrial Safety; National Safety Council. This is a branch of civil engineering, but because of its great importance for a healthy environment, especially in dense urban-population areas, it has acquired the importance of a specialized field. It chiefly deals with problems involving water supply, treatment, and distribution; disposal of community wastes and reclamation of useful components of such wastes; control of pollution of surface waterways, groundwaters, and soils; milk and food sanitation; housing and institutional sanitation; rural and recreational-site sanitation; insect and vermin control; control of atmospheric pollution; industrial hygiene, including control of light, noise, vibration, and toxic materials in work areas; and other fields concerned with the control of environmental factors affecting health. The methods used for supplying communities with pure water and for the disposal of sewage and other wastes are described separately. Plumbing; Sewage Disposal; Solid Waste Disposal; Water Pollution; Water Supply and Waterworks. Scientific methods of engineering are applied in several fields not connected directly to manufacture and construction.
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