Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 53, Problem 5SQ
To determine
Explain the reason for usage of larger shaft on a gear reduction motor than the shaft of a standard motor.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The direction of rotation of a DC shunt
motor can be reversed by interchanging
Either field or armature terminals
O The supply terminals
O The armature terminal only
O The field terminals only
One the following is not an advantage of
BLDC motor over conventional DC motor.
O Less maintenance
Long life
No risk of explosion or possibility of RF
radiation
O Low cost
What type of speed control method provides
above the normal speed of the DC series motor?
O a. Armature control method
O b. Armature resistance control
O c. Field diverter
O d. Flux control method
A 15 HP 220 V shunt motor has an armature resistance of 0.07 ohm and shunt a shunt resistance of 200 ohms. The overall efficiency at rated output is 89 %, What is the rotational loss?
Chapter 53 Solutions
Electric Motor Control
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- The input current to a 220 V, short-shunt compound motor at no-load is 6 A. The shunt field resistance is 220 ohms, the armature resistance is 0.10 ohm and the series field resistance is 0.08 ohm. What is the stray power loss?arrow_forward2 Determine the Torque and a no-load speed of a DC shunt motor has full load rating of 11 kW, 220 Volts, 58 Amperes, 1,390 rpm. The armature circuit resistance is 0.15 Ohm and the field circuit resistance is 120 Ohms.arrow_forwardIf the voltage applied across the armature of a DC shunt motor is increased by 5% keeping its load current and field constant, what will be the effect on its speed? * O increase by 10 per cent O decrease by about 5 per cent increase by about 5 per cent O remain unchangedarrow_forward
- A 205 V shunt motor is rated at 5 HP and 1000 rpm. At rated output it draws 29 A of line current. The total armature circuit resistance is 0.5 0. The field resistance is 101 0. Find the armature current.arrow_forwardCompare Permanent Magnet DC motor, Series DC Motor, Shunt DC Motor, and Compound DC Motor by: Speed regulation torque-speed characteristic Starting currentarrow_forwardBriefly explain stator frequency speed control method of induction motorarrow_forward
- what are the main advantages of gear motorsarrow_forwardQ/ When a series dc motor is operated at load, which of the following conditions occurs Ans 1- The field current increases 2- The armature speeds increases 3- The armature current decreases 4- The voltage requirement increasesarrow_forwardin the design of shunt connected DC motor, you intended to make field resistance high value to increase armature current la O decrease field current If Oarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
