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Types of insulation classes used in electrical motor/ transformer There are three main categories of insulating materials, gases, liquids, and solids. The types of insulating materials are classified mainly based on thermal capability. types of insulation classes for electric motors are A, B, and E, F, H ,Y and C. Insulation is the primary thing […]
Single-phase salient pole synchronous motors are called reluctance motors. the stator of the reluctance motor has the main winding and the auxiliary winding the same as the single-phase induction motor. The motor starts as an induction motor. It is pulled into synchronism with the ac supply by reluctance torque developed at salient iron poles which […]
A Slip Ring Induction Motor is a type of asynchronous induction motor. Slip ring induction motors rotor is wound identically to the stator and is connected through rotating electrical contacts known as slip rings. These slip rings let the induction motor have an external resistor connected in series with the rotor winding. The fundamental purpose […]
In the Delta connection, the dissimilar terminals of three phase windings are connected together. The finishing end of one phase is joined to the starting end of the other phase to obtain mesh or delta-connected winding. Delta connection in the power system is shown in the below diagram As shown in the diagram of the […]
In our technologically advanced world, the versatility and efficiency of induction motors have made them integral in varying industrial applications. From the functioning of a small home appliance to the powering of enormous machines, the induction motor lies at the heart of numerous operating systems. This humble electrical device, composed of essential elements like the […]
While selecting an induction motor, Motor Duty Cycle must be considered to meet the induction motor application requirement. The duty types are indicated on motor nameplate data by S1, S2… In the absence of an indication of the rated duty class, continuous running duty is assumed when considering a motor operation. What Are Motor Duty […]
The types of single phase induction motors are often classified by the names of the starting method used. Like Capacitor start Induction run motor (CSIR), Capacitor start capacitor run induction motor(CSCR), Permanent-split capacitor motor. A standard single-phase stator has two windings placed at an angle of 90° to each other. One of these windings is known as the main […]
The type of motor that operates on both DC and single phase AC supply is called Universal Motor. The universal motor is also called an ac series motor. The universal motor works at approximately the same speed and output on either DC or AC single-phase supply. The universal motor is a series-wound motor which means […]
Due to the desirable Torque-speed characteristics, the series motor is exclusively used in traction applications. Dc series motor satisfy all requirements for this kind of work and services but the transmission of ac power is more economical than DC. This has led to the development of the Ac series motor. This motor is a kind […]
Double Revolving Field Theory The double field revolving theory of single phase induction motor is proposed to explain this problem of no torque developed at starting and yet torque once rotated. Double revolving field theory is based on the fact that an alternating sinusoidal flux can be expressed by two revolving fluxes and each flux […]
