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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 else can I help you with?
What is the purpose of overload relay?
MK-1 relays protect a motor by sensing the current going to the motor. Many of these use small heaters, often bi-metallic elements that bend when warmed by the current to the motor. When current is too high for too long, heaters open the relay contacts carrying current to the coil of the contactor.
Why do you need heaters in electrical motors?
To prevent the short circuit current causing the moisture at the motor winding. So, we need the heaters in the electrical motors which is used at the humidity environment to take off the moisture by using heating effect.
What the purpose of starting resistor used in dc motor?
describe how to use starting resistors to star a DC motor
Describe the parts of a motor and how they use electric current to turn an axle?
The parts of a motor includes the valves,piston rings,piston and the cylinder just but to mention a few. It uses the power of the magnetic fields to convert electricity into motion.
What is the main function of a contactor?
A contactor is another name for an electrical relay. It is a device that allows a low current (normal) switch to turn on or off high current equipment such as heaters or air-conditioners that would be well beyond its capacity.
How do you maintain and troubleshoot the motor control?
For what type of motor?
3 phase 480 volt motor that continually trips the heaters?
By the phrase "trips the heaters" I am assuming that you meant the Overloads. There are 3 possible answers: 1) The Overloads are not the correct size or are in a high ambient temperature envornment. Most manufacturers have sizing charts that take these into account. 2) The motor is bad or in the process of going bad. 3) The motor is overloaded. If you are running a 7 1/2 HP motor on a load that requires 10 HP then the motor will draw too much amperage and trip the overloads.
What device has a coil armature and heaters?
A motor starter.
What is motor space heater?
Motor space heaters are used for bigger morotors in industries..... This requirement is decided based on the ambient condition surrounding the motor... This space heaters are used to keep the motor winding hot and avoid any ice formation in motor while motor is not running........
How would you troubleshoot a problem with the heater fuse blowing regularly?
The fan motor has a short...change it.
How do you troubleshoot wiper fuses blowing on a 1998 Ram 1500?
The wiper Motor is bad. Sorry
How do you troubleshoot front heater motor on a 1994 Oldsmobile silhouette?
Put a potato in the exhaust pipe.
How do you troubleshoot a left ac blower that sporadically works on a 1994 xj6?
Probably bad brushes in the motor.
Describe how the motor continues to spin when connected?
the motor is 2
What is the purpose of overload relay?
MK-1 relays protect a motor by sensing the current going to the motor. Many of these use small heaters, often bi-metallic elements that bend when warmed by the current to the motor. When current is too high for too long, heaters open the relay contacts carrying current to the coil of the contactor.
How does a heater use a motor?
Motors in heaters are to run the fans to distribute the heat over a larger area.
What is a device with an electromagnet that continually rotates because of a changing electric current?
The device is known as a "motor".
