Table of Contents
What does it mean when a motor is hunting?
Engine hunting is nothing but variation in the engine rpm continuously(fluctuating). the engine rpm may be varied continuously due to abnormal condition of centrifugal governor inside the fuel injection pump or fast idle control device.
What is governor effect?
The governor senses shaft RPM, and adjusts or controls the angle of the blades to vary the torque load on the engine. Thus as the aircraft speeds up (as in a dive) or slows (in climb) the RPM is held constant.
What is the purpose of governor in diesel engine?
The governor’s purpose is to control the fuel to the engine cylinders so as to control the speed of the unit, holding the speed constant for all conditions of load imposed on the generator conditions of load imposed on the generator being driven by the engine.
How is hunting prevented?
Reduction of Hunting in Synchronous Motor Use of Damper Winding: It consists of low electrical resistance copper / aluminum brush embedded in slots of pole faces in salient pole machine. Damper winding damps out hunting by producing torque opposite to slip of rotor.
How do you control hunting?
The most imperative way to curtail overhunting is the enforcement of more stringent laws, especially those barring activities such as illegal animal trade and poaching. Policies should also limit the manufacture of products from endangered animal extracts such as tigers, bears and whales.
What is the purpose of the governors on the fuel pump?
The principal control device on any engine is the governor. It governs or controls the engine speed at some fixed value while power output changes to meet demand. This is achieved by the governor automatically adjusting the engine fuel pump settings to meet the desired load at the set speed.
What is the cause for hunting effect in alternators?
Explanation: As a result of rotor acceleration above synchronous speed the load angle decreases. Thus rotor swings or oscillates about new equilibrium position. This phenomenon is known as hunting or phase swinging.