A types of bearings is a device to allow constrained relative motion between two or more parts, typically rotation or linear movement. The bearings are used in variety of machine elements to guide and allow the relative motion between the parts with minimum friction and maximum accuracy. Types of Bearings Bearings may be classified broadly
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An act done in exercise of sovereign power in relation to another State or subjects of another State is an Act of State and cannot be questioned by municipal courts. According to Wade and Philips, the term “‘Act of State’ means an act of the Executive as a matter of policy performed in the course
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When a metal wire is heated the resistance increases. So, a temperature can be measured using the resistance of a wire. The RTD incorporates pure metals or certain alloys that increase in resistance as temperature increases and, conversely, decrease in resistance as temp decreases. RTDs act somewhat like an electrical transducer, converting changes in temperature
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A tire pressure sensor is a small programmable electronic device, located in the pressurized pocket made by a wheel and tire, that constantly measures the air pressure inside the tire. The tire pressure sensor transmits that information via low-frequency radio to the vehicle’s onboard computer and, if the car has one, to a corresponding display
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Types of jig and fixture There are so many types of jig and fixture. It is difficult to classify them into a standard system. However, depending upon their construction and method of operation, jigs can be broadly classified as follows: Boring jig Drill jig Template jig Plate jig Sandwich jig Latch or leaf jig Channel
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Power System Security A power system security in the manual operating condition may face a contingency condition, such as a generating unit may go out of order, an important line may be tripped off, and the demand may undergo a large change from the forecasted value and so on. Although many such contingencies can occur,
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Progressive Die These progressive die are designed to perform two or more operations at different stages every time when the ram descends. The stock strip is advanced through a series of stations that perform one or more distinct die operations on the workpiece. The strip must move from the first through each succeeding station to
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Tap Changing Transformer All power Tap changing transformer on transmission lines are provided with taps for control of secondary voltage. The tap changing transformers do not control voltage by regulating the flow of reactive VARs but by changing transformation ratio. There are two types of tap changing transformers. (a) Off-load tap changing transformers. (b) On-load
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A cam and follower is a rotating or oscillating machine clement having a curved outline Or a curved groove. It gives a predetermined specified motion to another element called the follower which is in contact. A general example is the camshaft of an automobile which takes the rotary motion of the engine and translates it
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Series Capacitor It is connected in series capacitor to compensate the inductive reactance of line. This reduces the transfer reactance between the buses to which the line is connected. It increases maximum power that can be transmitted and reduces reactive power loss. The reactive power produced by the series capacitor increases with increase in power
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