It increases the cross-sectional area of the magnetic circuit, which results in a uniform spread of magnetic flux. Poles - The main function of the poles is to support the field coils. It provides support to main poles and inter poles and gives a low reluctance path for the magnetic flux. Yoke - The outer hollow cylindrical structure is known as Yoke. When current flows through them, adjacent poles acquire opposite polarity. The field coils of all the poles are connected in series. Because of them, the actual conversion of power takes place.įield Coils - To produce the magnetic field, field coils are placed over the pole core. These slots accommodate armature winding in it.Īrmature Winding - These are the insulated conductors placed in the armature core. Rotor - A rotor is a cylindrical laminated armature core with slots.Īrmature Core - The armature core is cylindrical in shape and has grooves on the outer surface. The purpose of the stator is to provide a magnetic field in the region where the coil spins. Stator - A stator is a set of two magnets placed in such a way that opposite polarity faces each other.
MOTOR WINDING FORMULA IN HINDI PDF GENERATOR
DC generators supply continuous power to electric storage instruments and power grids (DC).ĭC Generator consists of the following parts. These generators are most suitable for off-grid applications. In DC generators, the energy conversion is based on the principle of dynamically induced EMF production. However, a generator that converts mechanical energy into alternating current electricity is an AC generator.ĭo you know why we study generators in their working principle? On this page, we will get to resolve all our queries on the DC generator's parts,working principle and how we describe it in mathematical terms. There are two types of generators,Ī DC generator is the type of electrical generator that converts mechanical energy into direct current electricity. The electrical energy generated is further transmitted and distributed through power lines for domestic, commercial use. Shahid Abdur Rab Serniabat Textile Engineering College, Barisal.Machines that convert mechanical energy into electrical energy are called Electric Generators. Hope this article will be helpful for those who are new to the Weaving mill or those who are students. I have tried to explain/show all the calculations of Loom or Fabric Production in weaving mill with so many examples through this article. ……………………………….Loom RPM x 60 x Shift time x Efficiency Total stoppage time = 10 + 5 + 10 = 25 mins Loom efficiency (%) = -–Įxample: Calculate the efficiency of loom-Įxample: Calculate the loom efficiency and loom production.
Production = - x 60 x 24 x 7 x 45 x - x -– meter/7daysĮxample: Find out production calculation of loom – Now production per hour per loom = -Įxample: Calculate the production of loom. Now, Fabric Production in Meter/Shift = -– x 60 x 12 x No of Loom x EfficiencyĮxample: Calculate the yarn consumption of a loom per hour running at 180 PPM for producing So, Total no of looms in two sheds = 15 x 2 = 30 The produced fabric has following specifications. The factory has two weaving sheds, each consists of 15 rapier looms.
Fabric Production in Meter = - x 60 x No of Loom x EfficiencyĮxample: Calculate the fabric production in meter per shift of a weaving factory in which a day is divided into two shifts. Weight of weft yarn in 5000m fabric = 468.71 kg (Ans)ġ. Now, Total Fabric Weight = Warp Weight + Weft WeightĮxample: Calculate the weight of yarn in fabric (warp & weft) Fabric Specification: - x Fabric WidthĮxample: Fabric Specification - x 60” Mathematical Problems of Loom Production Calculationġ. Some Important Conversions for Production Calculation of Loom Some important production calculation ( Fabric specification, Weight of fabric, Loom production, Efficiency, Machine RPM etc.) of Loom are discussed below. So, calculation play an important role in weaving process. There are three main loom motion, which are- 1) Primary motion, 2) Secondary motion & 3) Tertiary motion. The whole process of weaving is done through several motions. There are various types of loom like Projectile loom, Rapier loom, Air jet & Water jet loom etc.
A loom can not be said machine but it is a device which is used to produce woven fabric. A loom is a contact point of all the processes (ginning, opening, carding, spinning, winding, warping, sizing & beaming) of fabric production.
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