Introduction to Drop Test
The most correct technique of testing the armature for accurate resistance, number of turns, short and open reversed coil connection is through the drop test. Connect a low voltage DC (direct current) supply beyond the commutator segments at a distance of pole pitch.
In series insert a variable resistance with the circuit. Switch 'ON' the DC (direct current) supply and connect a milli-voltmeter to the adjacent segments as in the below diagram.
Adjust the readings to a particular value, through using a variable rheostat. On the consequent commutator segments record the milli- voltmeter readings through rotating by rotating the armature in single direction.
The location of the segments and the connection should be similar like in the first set up. The outcome could be done as detailed below:
A) The winding is correct if all the readings are similar.
B) The coil connected to the segment is short if the millimetre reads 0 or low voltage.
C) The coil connected to the segments is open if the milli-voltmeter reads high voltage.
D) The coil connected with the segments is reversed if the milli-voltmeter deflects in the reverse direction as displayed in the diagram.
Usually armatures are tested like a routine for insulation resistance and for shorted coils. Only while a fault in the armature winding is supposed, a drop test is carried out.
Latest technology based Electrical Engineering Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Drop Test homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Drop Test, project ideas and tutorials. We provide email based Drop Test homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Drop Test. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Electrical Engineering homework help and assignment help services. They use their experience, as they have solved thousands of the Electrical Engineering assignments, which may help you to solve your complex issues of Drop Test. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
Get Criminal Law and Procedure Assignment Help now, as our tutors can write on any topic, within tight deadline and fetch you A++ grades!
Elements of Group 14 tutorial all along with the key concepts of Occurrence, Extraction and Uses of Group 14, General Characteristics of group 14, Multiple Bonding and Catenation
www.tutorsglobe.com offers system analysis of the existing system homework help, assignment help, case study, writing homework help, online tutoring assistance by computer science tutors.
Factors affecting Population tutorial all along with the key concepts of Birth rate or Natality rate, Death or Mortality rate, Age distribution, Permanence of movement, Migratory selection, Effects on populations, Abiotic and biotic factors
adaptations by plants to different environments tutorial all along with the key concepts of adaptations for reproduction in plants, adaptation by xerophytes, adaptation by hydrophytes, adaptation by halophytes, adaptation by mesophytes and adaptations by epiphytes
inherent limitations in accounting, homework help, assignment help by online tutors. get solved accounting questions by tutors.
A widely-used performance target is based on total shareholder return (TSR). The total return from a share is made up of two elements: the increase (or decrease) in share value over a period plus any dividends paid during the period.
reactions of hydrocarbons tutorial all along with the key concepts of reaction with bromine, reaction with concentrated sulphuric acid, reaction with potassium permanganate, physical properties of hydrocarbons, chemical properties of hydrocarbons
Natural Dyes-Dyeing Processes tutorial all along with the key concepts of Definition of Natural Dyes and Mordant, Types of Natural Dyes, Natural Dyes Obtained from Plants, Natural Dyes Obtained from Animals, Categories of Natural Dyes, Natural dyeing, Mordants for Natural Dyeing
Theory and lecture notes of Macroeconomic Policy all along with the key concepts of Macroeconomic policy, Growth Policy and Stabilization Policy. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Macroeconomic Policy.
Proper Care should be taken when checking the biasing voltage of old CRT that should be appropriate to the new CRT.
tutorsglobe.com kuhne’s fermentation tube experiment assignment help-homework help by online respiration tutors
tutorsglobe.com mitochondria as semi-autonomous assignment help-homework help by online mitochondria tutors
The significant objectives of the uniform costing - To help for meaningful and valid cost comparison between the members, To locate and eliminate inefficiencies in the firm by measuring own efficiency in terms of industry generally and in terms of close rivals in particular.
tutorsglobe.com law of dominance assignment help-homework help by online laws of mendel tutors
1945093
Questions Asked
3689
Tutors
1439872
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!