2021年4月2日 · For small dc machines the Yoke are made of cast iron. But for larger machines, cast steel or rolled steel is used. A pole of a dc machine is a supporting structure to electromagnet. The field winding is wound over the poles. Poles produce the magnetic flux when the field winding is excited by DC supply voltage.

The DC machine consists of Yoke, Pole, and Pole shoe, Armature core, Field Winding, Armature Winding, Commutator, Brushes, shaft, and Bearings. Let’s explain each part in detail with applications. Yoke or Frame

2013年3月20日 · Yoke of DC Motor The magnetic frame or the yoke of DC motor made up of cast iron or steel and forms an integral part of the stator or the static part of the motor. Its main function is to form a protective covering over the sophisticated inner parts of …

2024年2月3日 · Details of a Yoke of a DC machine are: Yoke has good permeability. Yoke gives support to the poles. It completes the magnetic Flux path in a machine (ϕ/2). And ϕ=flux per pole. Small Machine-made of Cast iron. Large Machine-made of Cast iron/Fabricated steel. Small Machine – Fabricated steel.

All dc machines have the following principal components. The diagram given below represents the various parts of a 2 pole DC machine. The cross-section of a four pole DC machine is shown in the figure below. 1. Yoke (Magnetic Frame) The outer frame or yoke serves a double purpose :

2021年3月17日 · The yoke and bearings provide mechanical support to the DC machine’s spinning armature, allowing smooth, steady motion while mitigating friction. And purpose of carbon brushes to made the connection b/w the rotating …

The yoke or frame of the DC machine serves the following main purposes − It protects the internal machine parts like armature, windings, field poles, etc. against mechanical damages. The yoke houses the magnetic field system.

Some of the parts of the DC machine is discussed below. Another name of a yoke is the frame. The main function of the yoke in the machine is to offer mechanical support intended for poles and protects the entire machine from moisture, dust, etc. The materials used in the yoke are designed with cast iron, cast steel otherwise rolled steel.

In a DC motor, the field frame, or yoke, carries the field poles and also provides a magnetic path between poles. Since a material of high magnetic permeability is required, cast iron or steel is often used. The yoke has high mechanical strength and has the added advantage of retaining residual magnetism, a factor convenient for certain DC ...

2014年7月14日 · The main parts of DC Machine (motor or generator) are as follows: 1. Yoke is also called as frame. For small M/C yoke is made of cast iron. For large M/C it is made of cast steel or rolled steel. 2. Pole & Pole core. Pole of a generator is an electromagnet. The field winding is winding over pale.