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Explain capacitance of bundled conductor line?
Capacitors are formed by placing two conductors near each other. Usually, they are plates separated by an insulating dielectric. The capacitance is a function of the area and closeness of the plates. Bundled conductors have capacitance for the same reason - they are conductors close to each other. Since capacitors work by transferring charge (remember that the equation of a capacitor is dv/dt = i/c) then a signal on one conductor can induce a "copy" of the signal on the other line - usually a faint copy, but a copy nontheless. This induced voltage effect is also known as interference, and must be considered in the final system design.
What is the difference between bundled conductors and composite conductors?
Bundled conductors are used to reduce the effect of corona. As in place of a single conductor. two conductors are used in parallel the voltage gradient build up is less and thus the ionisation of the surrounding air is decreased. Therefore the effect of corona is reduced.
How do charged conductors and insulators differ from each other?
Insulators prevent electricity or energy from going through them. Conductors allow electricity/energy to easily pass through.
Explain the basics of an aeroplane's Fuel and Hydraulic systems?
Large Commericial Jet ===Fuel Most large commericial jets operate on diesel fuel. The fuel is distributed over several fuel tanks distributed within the wings and the center fuselage. The Fuel Control system is a computer that helps the flight crew distribute the fuel in order to maintain the aircraft center of gravity and attitude for a safe flight. There are fuel probes in each fuel tank and most larger aircraft use more than one probe to determine the exact quantity of fuel in each tank.Each engine will have a fuel controller that provides the correct amount of fuel for the power setting and also adjust controls on the engine to obtain maximum efficiency of burn. For example, the stators on some engine are adjusted to improve the flow through the various turbine stages.Hydraulics - Most of the aircraft mechanical controls are powered by hydraulic pressure. (Aircraft in the future may rely less and less on hydraulics and more on electrical control.) Since the hydraulics are the "blood line" of the aircraft, it is important to ensure that the lines are safe from damage and leaks. Therefore, most aircraft have 2 or 3 redundant hydraulic systems. Usually the flight controls are powered by 2 redundant systems so that the loss of one hydraulic system will not cause that flight control to be inoperative.Each hydraulic system has a Reservoir which collects all returned fluid and filters it. The fluid leaves the reservoir and is routed to the Hydraulic Pumps mounted on the engines. The pump sends the fluid throughout all the lines out to each hydraulic component and then back to the reservoir. Most aircraft operate at 3000 psi pressure. Some military aircraft and commericial aircraft such as the Airbus A380 provides pressure at 5000 psi. The advantage of this is smaller hydraulic lines to save weight.The Hydraulic Components that are powered by the hydraulics are usually simple linear actuators. Some may be rotary actuators or hydraulic latches.The Landing Gears are retracted and extended by hydraulic actuators. The fluid inside the landing gear that allows the strut to absorb the shock of the landing is NOT related to the aircraft hydraulics. The shock strut is a closed system which uses a slightly different type of fluid. The hydraulics does provide power to a Brake Valve that is controlled by the brake pedals in the cockpit. The Brake Valve sends pressure to the Brakesthrough a manifold that is controlled by the anti-skid braking system. Each brake on the aircraft is powered by 2 separate braking systems from two separate hydraulic sources. So, if one hydraulic system fails, then the other hydraulic system can still operate the brakes.The DC10 that crashed in Sioux City, Iowa, had a triple failure of all three of its hydraulic systems. The engine on the tail experienced a catastropic failure and pieces of turbine blades cut hydraulic lines that were routed to the tail of the aircraft. The aircraft lost all hydraulics. It had not control of any flight surfaces. The landing gear can be extended by free-fall. The only controls it had were throttle to the engines.Custermen
Why you go for multi-conductor system in power transmission?
All a.c. transmission systems are three-phase systems, which comprise three line conductors which are suspended from towers. Each 'line' is generally made up of a number of 'bundled' conductors -according to the transmission voltage- to reduce the electrical stress. Many transmission towers carry two separate three-phase circuits, one on each side of the tower.
What is the function of wires in transmission line?
Each of the three conductors of an electricity transmission system are termed 'line conductors', and there is a potential difference between each pair, called a 'line voltage'. The conductors themselves carry load currents called 'line currents'.
What are the mechanisms of a hydraulic system?
Oil supply sump, pump, relief valve, control block, hydraulic motor (cylinder), pressure gauges, piping or hoses. And there may be multiples of each in a complex system.
How many conductors does a POTS line use?
Each telephone line uses only two conductors.
Explain capacitance of bundled conductor line?
Capacitors are formed by placing two conductors near each other. Usually, they are plates separated by an insulating dielectric. The capacitance is a function of the area and closeness of the plates. Bundled conductors have capacitance for the same reason - they are conductors close to each other. Since capacitors work by transferring charge (remember that the equation of a capacitor is dv/dt = i/c) then a signal on one conductor can induce a "copy" of the signal on the other line - usually a faint copy, but a copy nontheless. This induced voltage effect is also known as interference, and must be considered in the final system design.
Explain the function of each of the four system resources that software uses to manage hardware?
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Draw the block diagram of general commnication system and explain each block in detail?
i dont no answer
What does hydraulic system do?
In most other hydraulic systems, hydraulic cylinders and pistons are connected through valves to a pump supplying high-pressure oil.The brakes in your car are a good example of a basic piston-driven hydraulic system. When you depress the brake pedal in your car, it is pushing on the piston in the brake's master cylinder. Four slave pistons, one at each wheel, actuate to press the brake pads against the brake rotor to stop the car.
List three groups that use accounting information and briefly explain why each has an interest in this information?
how to explain an accounting system used for our company to auditor
Name devices or machines that use fluid powerstate whether each is a hydraulic or pneumatic system?
cars-used to break gas pumps dishwashers rollercoasters
What are the different types of hydraulic fittings?
Hydraulic fittings connect hoses, pipes, and tubes in hydraulic systems. Types include adapters, couplings, elbows, tees, crosses, caps, plugs, flanges, ferrules, ORFS, JIC, NPT, BSP, SAE, and metric fittings. Each type is designed for specific applications and system requirements. One of the Top manufacturers of hydraulic fittings in India is Ladhani Metal Corporation. Hydraulic fittings are parts that connect, regulate, and direct the flow of hydraulic fluid between different parts of hydraulic systems.
What is hydrolic system?
In most other hydraulic systems, hydraulic cylinders and pistons are connected through valves to a pump supplying high-pressure oil.The brakes in your car are a good example of a basic piston-driven hydraulic system. When you depress the brake pedal in your car, it is pushing on the piston in the brake's master cylinder. Four slave pistons, one at each wheel, actuate to press the brake pads against the brake rotor to stop the car.
What are the types of backup Explain each?
What are the types of backup Explain each?
