good afternoon sir..
i am lalitha anusha pursuing btech last year..in this semester we have to do projects..
we want to make this project..plz suggest me the cost and process,equipment needed..
thanking you[/font]
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abstract for automatic speed regulation depending on incoming vehicle on high ways
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good afternoon sir..
i am lalitha anusha pursuing btech last year..in this semester we have to do projects..
we want to make this project..plz suggest me the cost and process,equipment needed..
thanking you[/font]
04-04-2017, 04:35 PM
Automatic regulators suitable for industrial use must be fast in response, robust in construction, require minimal maintenance and can be adapted to a wide variety of applications. How one of the newest types of carbon pile controllers meets these exact requirements is described in some detail. Most commonly available adjustable speed drivers today use the d-c engine. The speed can be controlled by the armature voltage variation, field current variation, or a combination of both. When the load torque is essentially constant over the speed range, the armature voltage control is used. The second method, the motor field setting, is more economical where the load power is substantially constant over a speed range not wider than 4 to 6. When an extremely wide speed range is desired with reduced torque at higher speeds High, and field control gives good results. At low speeds, the motor field is generally maintained at a constant level and the motor speed is varied by changing the armature voltage. When the rated armature voltage is reached, the speed can be further increased by weakening the field. The armature voltage, in any case, can be supplied from a Ward-Leonard generator, magnetic amplifiers, tubes or semiconductors.
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