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the main reason is the amount of current flowing in the motor's winding is huge (over current) that why temperature begins to build up, continues using may end up to a burned motor. over voltage, defective bearing / bushing, shaft misalignment, defective insulation are some of the reason why motor experience over current.
What else can I help you with?
How much can an induction hob cost?
The price of an induction hob varies by make, model, and other specific features. Induction hobs can be in the price range of approximately $200.00 to well over $2,000.00.
What is the advantages of induction motor?
Yet another advantage of electric induction motors is their ability to be connected directly to the AC source. This may not mean much in household uses, but in industrial uses, this can be an important cost saver. Since the basic electric design has graduated into an electronic one over the years, an induction motor is easy to program for its various uses. The initial cost of installing it may be a little high, but it will save money in the long term because of the low maintenance cost and durability of the product. Moreover, it is a flexible design which allows innovations and newer technologies to be incorporated easily without incurring extra costs or necessitating
How is thermal overload protection done in stator windings of motor?
one way is to use RTD sensor put inside the motor windings. The RTD sensor is connected to an electronic thermal overload relay. This type of relay can provide running temperature of the motor, on the electronic thermal over load relay display panel. RTD sensor is a wire wound resistor that changes resistance depending on the temperature
Describe the steps you take to troubleshoot a 3 phase 480 volt motor that continually trips the heaters?
Start by checking the motor current when the motor is running under load with a clamp on amp meter. If it is over nameplate rating, check and find out if the load the motor is driving is somehow dragging and creating more load that normal. 98% of the time it is the load seizing up that causes motors to trip. Drop the load off the motor and see if the motor runs under nameplate amperage. If it does that is good. Check for loose connection in the motor contactor and around the overload heater block. Check and make sure the overload heaters are set to the FLA of the motor. As a last resort megger the motor to make sure one of the phases has not grounded out.
What is a rocker arm in a DC motor and what will happen if the rocker arm connections are changed?
A rocker arm holds a carbon brush. In other words it is a carbon brush holder. Changing over the rocker arm connections is the same as changing over the armature connections and will make a DC motor turn in the reverse direction assuming that the magnetic orientation of the motor's field stays the same.More detailDC motor having a field windingIf the stator's field is created by a field winding and that winding's connections are changed over at the same time as the armature's connections are changed over, then the DC motor's direction of rotation will be the same as before.If the stator's field is created by a field winding and that winding's connections are not changed over at the same time as the the armature's connections are changed over, then the DC motor will turn in the reverse direction.DC Motor having a field created by a permanent magnetIf the stator's magnetic field is created by a permanent magnet and the orientation of that magnet is reversed at the same time that the armature connections are changed over, then the DC motor's direction of rotation will be the same as before.If the stator's magnetic field is created by a permanent magnet and the orientation of that magnet is not reversed at the same time as the armature connections are changed over, then the DC motor will turn in the reverse direction.
What are the advantages of open end winding induction motor over conventional induction motor?
Open ended induction motor - i assume you are talking about split phase induction motor. With these motors old style speed controlling method using external resistors can be used. However this is now obsolete.
If a three phase induction motor runs at a speed greater than synchronous speed?
When an induction motor is pushed over synchronous speed it will become a generator and will deliver power back to the utility.
At what temperature is GM 350 crate motor overheating?
Over 210
At what temperature is 1960 Cadillac 390 motor overheating?
Over 210
What causes a 5HP 240 volt electric motor to get hot?
If a motor is operating above the 40 degree C nameplate rating, it is probably overloaded. Overloaded motors will draw more current than they should. Check the amperage to make sure that it in not over the nameplate current rating.If you have the ability to check the motor's frame temperature with a laser temperature reader use it as it is hard to tell just by touching the motor with your hand.
Causes of motor going out?
Over load, misalignment, no maintenance. water / moisture entry
Why one phase shows 0 Amps while a delta connected 3 phase induction motor runs?
Cause 2 phase is applied to the motor and another phase is disconnected ... in this condition ur motor cannot run longer ,it will trip on over current or burn ur motor winding .
How does steam heating work?
when you heat water it causes steam because over a certain point of temperature it causes watervaper
How do you calculate derating of squirrel cage induction motor when operating at higher ambient temperature than mentioned on name plate?
There is no "slam dunk" answer for calculating the derating of a motor operated beyond its manufacturer's rated temperature. There is a very good reason for this. The "curve" of a motor's performance with regard to temperature isn't linear. In fact, it's far from it. And it will vary a great deal depending on a number of characteristics associated with a given machine. These will include its rating at "ambient" temperature, its size, and number of other things about its shape and mechanical construction. If an individual needs to operate a motor outside the manufacturer's ratings, it's a no-brainer that the manufacturer should be contacted to get information. The hook is economy. A lot of motors can be "pushed" a bit over their operating temperatures for a short time, but extended operation in the "red zone" will bring early failure. "Over-rating" a motor isn't a good idea if the objective is to save a few bucks. It will cost more in the long run to "cook" the unit and have to replace it than to get one that is rated for the operating conditions or to run cooling to the motor. This is really a question of engineering, and the smart engineer will cool a given motor or will get a different motor that is rated for the operating conditions.
What is normal electric induction?
the total normal induction is a over surface equal to algebraic sum of charges enclosed in surface
What causes the motor to heat up to boiling and then cool off and do it over and over even after the thermostat has been replaced?
Sounds like blown head gasket.
What is the advantage of the capacitor-start induction-run motor over the resistance-start induction-run motor?
A capacitor-start system will limit the current drawn by an induction machine by correcting the devices poor power factor during the start up. This limits the current needed to start the device without using any real power. A resistance-start system will limit the starting current by drawing current unto the resistor instead of the induction machine. The real power used by the resistor is turned into heat and lost. A capacitive-start system will use no real power and will not create excess heat, it will be more expensive to initially purchase.
