The slots are not exactly made parallel to the axis of the shaft but are slotted a little skewed for the following reasons: These conductors are brazed to the short-circuiting end rings. The rotor consists of a cylindrical laminated core with parallel slots that carry conductor bars.Ĭonductors are heavy copper or aluminium bars which fit in each slot. The windings are wound for a definite number of poles depending upon the speed requirement, as speed is inversely proportional to the number of poles, given by the formula: Usually, windings are kept at different pitch circle with 30 % overlap to each other.
#3 phase motor winding connection diagram how to
Related Reading: How To Overhaul Motors On Ships? The three-phase windings are arranged in such a manner in the slots, that they produce a rotating magnetic field after AC supply is given to them. The stator is made up of a number of stampings in which different slots are cut to receive 3 phase winding circuit which is connected to 3 phase AC supply.
The main body of the Induction Motor comprises of two major parts: Related Reading: General Overview Of Central Cooling System On Ships Construction of 3 Phase Induction Motor Engine room heavy load pumps – Ballast, Fire, Freshwater, Sea Water etc.Squirrel cage motors are widely used on ships due to their rugged construction and simple design, few e.g. 3 phase induction motors are of two types, squirrel cage and slip ring motors. These 3 phase motor is supplied with 3 three-phase AC supply and is widely used in ships for heavier loads. Single-phase induction motors are mostly used in low power applications, some of those are mentioned below: The type of single-phase induction motor used depends on the starting arrangement they use as an auxiliary as they are not self-starting.
AC current is carried in the main winding of the motor. Single-phase induction motor: As the name suggests, this type of motor is supplied with single-phase power supply. There are basically two types of an induction motor: 1. Protections for 3 phase induction motorĪn induction motor or asynchronous motor is an AC motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.Disadvantages of 3 phase Induction motor:.Principle and Working Of 3 Phase Induction Motor.Construction of 3 Phase Induction Motor.