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When voltage increase then current will be?
it depends on what type of load. Motor amperage will drop off as voltage rises. loads such as lights will increase amperage with voltage rise.
Will 220 volt work in a high volt 3 phase motor?
Yes a 208 voltage motor will operate on 220 volts. You have to increase the motor overload protection by 10% of the motor's full load amperage to protect the motor.
What is overload protection?
It is protection installed to protect, usually motors, from going beyond the amperage capacities that were set down by the manufacturer's specifications of the motor. As a motor loads up to its rated HP it will operate within the motors amperage range. More loading on the motor will increase the amperage draw to a point where the motor's winding will start to burn or short out due to insulation breakdown of the motor coils. Over load protection is a settable device that will limit the current to a specific value. The setting on the over current device is the motor's FLA (full load amps). If the motor amperage goes higher that the set point the overload protection, the overload protection contacts will open and drop the motor's magnetic contactor off line. In some cases this could be an annoyance but it does save the motor from destroying itself.
What does LRA mean in electrical terms?
Locked rotor amperage is the amperage the motor draws when the voltage is first applied to the motor and the rotor has not started to turn. This amperage is usually up to 300% of the motors running amperage. Once the rotor starts to turn the motor generates a back EMF (electro motive force) that opposes the high inrush current. This back EMF drives the amperage down until the motor gets up to its rated speed at which time the motor amperage will be at its run amperage.
What is the FLA at 230 volts with nameplate amps of 20 and voltage of 230?
If the nameplate states 20 amps then that is the full load amperage when the motor is running. The start up current on the motor could reach 300% of the FLA depending on the type of motor and the load that is connected to the motor.
When voltage increase then current will be?
it depends on what type of load. Motor amperage will drop off as voltage rises. loads such as lights will increase amperage with voltage rise.
Can you run a motor of greater amperage draw with a motor of less amperage draw?
It looks like you are asking if a higher amperage motor can replace a lower amperage motor. It depends on what the amperage difference is. If the amperage is high enough to move the capacity of the wire out of its rated value then it should not be done.Remember motor conductors have to be rated at 125% of the motors nameplate amperage. As the amperage increases so does the HP and the motor's protection will also have to be increased or the motor will trip the lower overload protection settings.Also keep in mind that if the motor is three phase, running a motor with higher HP on a load that does not need the extra HP, it will lower the power factor of the supply distribution.
Will 220 volt work in a high volt 3 phase motor?
Yes a 208 voltage motor will operate on 220 volts. You have to increase the motor overload protection by 10% of the motor's full load amperage to protect the motor.
What is overload protection?
It is protection installed to protect, usually motors, from going beyond the amperage capacities that were set down by the manufacturer's specifications of the motor. As a motor loads up to its rated HP it will operate within the motors amperage range. More loading on the motor will increase the amperage draw to a point where the motor's winding will start to burn or short out due to insulation breakdown of the motor coils. Over load protection is a settable device that will limit the current to a specific value. The setting on the over current device is the motor's FLA (full load amps). If the motor amperage goes higher that the set point the overload protection, the overload protection contacts will open and drop the motor's magnetic contactor off line. In some cases this could be an annoyance but it does save the motor from destroying itself.
What size breaker is needed for a 125 hp motor?
It depends on what the amperage of the motor is. The motors amperage depends on the voltage of the motor. The higher the voltage the motor operates on the lower the amperage. So unless the amperage from the motor's nameplate is stated an answer can not be given.Just remember that the feeder capacity to the motor has to be 125% of the motors full load amperage and the breaker protecting the conductors to the motor has to be rated at 250% of the motors FLA. This higher breaker size allows the motor to start without tripping a normal size breaker that is rated for the lower conductor size.
What does LRA mean in electrical terms?
Locked rotor amperage is the amperage the motor draws when the voltage is first applied to the motor and the rotor has not started to turn. This amperage is usually up to 300% of the motors running amperage. Once the rotor starts to turn the motor generates a back EMF (electro motive force) that opposes the high inrush current. This back EMF drives the amperage down until the motor gets up to its rated speed at which time the motor amperage will be at its run amperage.
What is the formala for max overload on three phase motor?
The motor rating is the maximum power that the motor will supply continuously. The motor can supply more power for short periods but will eventually overheat. The allowable time would depend on the physical size of the motor. Each 1% mechanical overload would cause 1% more power and current to be drawn from the supply. This would increase the internal heat produced to increase by 2%, and that causes the temperature to rise. In cold conditions the wasted heat could be allowed to increase by 10% relative to warm conditions, which means that a 5% overload in the winter would be acceptable (rough estimate). <<>> There is no formula needed to find the motors maximum current draw. On the motor's manufacturers nameplate the motors full load amperage is displayed. Add this amperage to the service factor value and this is the maximum amperage that the motor should be operated at. Any amperage over these total values will start to shorten the life of the motor. Heating of the internal windings will start to break down the wire's insulation. Once this starts to happen the possibility of the winding shorting to ground could become imminent.
Can a 6 amp switch control a 12 amp motor?
No, a 6 amp switch should not be used to control a 12 amp motor as it may cause the switch to overheat and fail due to exceeding its amperage rating. It is important to match the switch's amperage rating with the motor's amperage to ensure safe and proper operation.
Why does my 99 Ford Windstar power seat fuse keeps burning out intermittently?
Usually if a seat motor is causing the fuse to blow then the motor is going bad. It could be using more amperage than it is designed to use. This will cause the fuse to blow. DO NOT be tempted to put in a bigger fuse. This can cause a fire. Good luck.
How much amperage is drawn by a kiloWatt motor?
To answer this question the motor voltage is needed.
How many amps are needed for a 220V well?
The amount of amperage needed for a 220V well will depend on the wattage of the well pump. To calculate the amperage, divide the wattage of the pump by the voltage (220V) to get the amperage required.
Is a bad motor starter on your car that draws a lot of amperage going to wear out your alternator more quickly?
a Bad starter will 1. Cause your battery to run faster to dieing. 2. yes, it will wear your alternator out faster and could result to ruining it.
