DC Machines Construction of DC Machine 10 Jun 202110 Jun 2021 Whether a machine is d.c. generator or a motor the construction basically remains the same as shown in the figure. DC machine consists of the following parts : Yoke :…
Transformer Ideal Transformer on No load 9 Jun 20219 Jun 2021 Consider an ideal transformer on no load as shown in the figure. The supply voltage is V1 and as it is an no load the secondary current  I2 = 0. The primary…
DC Machines… Characteristics of DC motors through Equations 6 Jun 20216 Jun 2021 Three characteristic curves are there for DC Motors given below (i) Torque vs. armature current, (ii) Speed vs. armature current (iii) Speed vs. torque Before going to discuss these characteristics,…
Power System Analysis Insulation Resistance of a Cable 6 Jun 20216 Jun 2021 The figure 6.10 shows the section of a single core cable which is insulated with the help of layer of an insulating material. In such cables, the leakage current flows…
Power System Analysis Condition for Zero and Maximum Voltage Regulation 6 Jun 20219 Jun 2021 Voltage regulation is a measure of the change in the voltage magnitude between the sending and receiving end of a component from no load to full load as a percentage…