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How do you drop the voltage of a 12v dc motor to slow it down?
You can use a DC motor speed controller with pulse width modulation (PWM) to regulate the voltage supplied to the motor, thus slowing it down. By adjusting the duty cycle of the PWM signal, you can effectively control the speed of the motor while maintaining a constant voltage input. Another option is to use a resistor in series with the motor to reduce the voltage, but this method is less efficient and may cause power loss and heating issues.
Why you use cartridge fuse in control circuit of motor?
It is proper "control sense" to fuse the control circuit. It does not have to be just a cartridge fuse, in many cases it is a breaker. Depending on where the control voltage is obtained from, transformer from the incoming motor feed, separate source, or line voltage, there is always a chance that a component of the control circuit could fail, circuit protection would lessen the damage to other equipment in the control circuit. The fuse should be sized as close to the control current as possible.
Can you connect 240 3 ph motor to 480 3 ph by dropping a leg?
No, you cannot connect a 240V 3-phase motor to a 480V supply by dropping a leg. The motor is designed to operate at a specific voltage, and changing the voltage in that manner can damage the motor and pose a safety hazard. It is recommended to use a transformer to step down the voltage to match the motor's rating.
What is the solution for running three phase induction motor at voltage less than its rated voltage to drive full load?
The solution to this problem is to get the same size motor in HP at the correct voltage. This way the motor can correctly drive the connected full load without tripping the motor protection.
How can you know the motor's volt if it has to move a robot with known weight?
To determine the motor's voltage needed to move a robot with a known weight, you would calculate the torque required to move the robot and select a motor that can provide that torque at a specific voltage. Factors such as friction, wheel size, and terrain should also be considered in calculating the motor's voltage for efficient robot movement.
What is the fullform of mcc panel?
mcc - motor control center or motor control console. A motor control center (MCC) is an assembly of one or more enclosed sections having a common power bus and principally containing motor control units
What is the mcc room?
motor control center
Why speed control of DC shunt motor is necessary?
The total voltage of the batteries or DC power source connected to a shunt motor affects how first it moves. Increasing the DC voltage will make the shunt motor run faster.
What is the voltage that supplies a motor starter called?
In the electrical trade it is called control voltage. This voltage can be any voltage. In North America the common control voltage is 120 volts.
What is the difference between mcc and pcc?
MCC-Motor control center which consist of motor staters to control the motor. PCC-power contol center which is control the power to distribution system
What is meant when the nameplate reads DC motor?
It means that the voltage that supplies the motor has to be a direct current source.
What is wye delta motor control?
It is a method of starting a three phase motor at a lower than operating voltage. The motor is operated at that voltage for a short specific time and then the controls switch to the motors full run operating voltage.
What does the control module do on an electric scooter?
Controls the application of voltage to the motor to control speed and direction of the motor. If there is a built in charger it would also control the charging process.
Speed control of three phase induction motor by supply voltage control using AC voltage regulators?
No. Use standard utility AC, 3 PH voltage to feed a Variable Frequency Drive (VFD). The VFD is then wired to the motor. The output of the VFD varies average voltage and frequency in a semi-constant proportion to keep Volts/Hertz ratio the same to the motor. The operator can then adjust or select the desired speed from the VFD and the VFD will run the motor continuosly at that desired speed. If you were to control only voltage to the motor without adjusting frequency in proportion, the motor would burn up.
Why variable voltage and variable frequency control is used instead of variable voltage?
variable voltage control has some limitations as you decrease the voltage corresponding phase current will increase lead to increase of flux which lead to saturation of motor core and heating of motor to make flux constant and vary speed of motor v/f ratio need to be maintained constant
What is the difference between vector control and Stator Voltage control method of induction motor?
I need the answer of this question plz!!
What is means of MCC in substation?
It means Motor Control Center.
