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What are dc drives main functions?
DC drives are direct current motors. They are lower in cost and easier to control as compared to AC drives, which are also known as alternating current motors.
Does current flow in all AC motors alternate direction?
Yes, in alternating current (AC) motors, the current flows in alternating directions. This is due to the nature of AC power, where the voltage periodically reverses direction, causing the current to do the same. This alternating current creates a rotating magnetic field that drives the motor's rotor. In contrast, direct current (DC) motors have current that flows in a single direction.
What type of current is used in an electirc motor?
Well that depends on the type of motor. DC motors use direct current DC and induction motors use alternation current AC.
What is meant by DC motor?
Only a DC motor uses direct current, and the reason is that it is the only supply available. There are also plenty of AC motors used when there is an AC supply. DC tends to be used for low-power devices like fans in electronic equipment.
What has the author J R Hendershot written?
J. R. Hendershot has written: 'Design of brushless permanent-magnet machines' -- subject(s): Permanent magnet motors, Brushless Electric motors, Design 'Design of brushless permanent-magnet motors' -- subject(s): Brushless Electric motors, Design, Direct current Electric motors, Electric motors, Electric motors, Brushless, Electric motors, Direct current, Permanent magnet motors
What are the different types of motors used in Broan bathroom fans?
The different types of motors used in Broan bathroom fans are typically either AC motors or DC motors. AC motors are more common and are powered by alternating current, while DC motors are powered by direct current. Both types of motors are used in Broan fans to provide efficient and reliable operation.
What has the author Scott Hancock written?
Scott Hancock has written: 'Design of direct-current machines' -- subject(s): Design and construction, Direct current, Electric machinery 'D.-C. motors and generators' -- subject(s): Direct current, Electric machinery
What is a disadvantages DOL or direct online starter?
it can not be use for heavy duty motors as well as it requires a high starting current.
Why is alternating currentrather than direct current normally used in most installations?
electricity is essentially alternate in nature when generated (other than batteries). AC is more flexible for stepping up or stepping down. DC motors are little complicated compared to AC motors, hence AC gained popularity, though in the very begining DC motors were popular. In some specific applications, DC is still used in industry. Most of the Toy motors are DC
Direct electric current cannot be used to operate A. Electric motors B. Electric heaters C. Electromagnets D. Transformers?
Direct electric current cannot be used to operate D. Transformers.
What is armature in motors?
The armature has the stationary (not physically moving) magnetic field, which attracts the magnetic field in the rotor. Since DC does not alternate, a split ring is used to alternate the current (and resulting magnetic field), so that the rotor will spin.
How many megohms need to run a motor?
A megohm is a unit of resistance to the flow of electricity. The requirements of motors are given in terms of voltage, current, whether they are direct or alternating current and, if alternating current, the number of phases.
