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Excessive arcing between the armature and brushes in an electric motor can occur due to several reasons, including improper brush alignment, worn brushes, or low brush pressure. Poor electrical contact can lead to increased resistance, generating heat and causing arcing. Additionally, excessive armature current or voltage spikes can exacerbate the problem, leading to premature wear and potential damage to the motor components. Proper maintenance and ensuring compatible brush and commutator materials can help mitigate this issue.
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What is the proper ampere rating of circuit breaker for electric arc welder?
The proper ampere rating of a circuit breaker for an electric arc welder depends on the arc welder. Each is different. Look at the nameplate on the arc welder and choose the circuit breaker and wiring accordingly.
What is the difference between a galvanometer and an electric motor?
Well, both work on what is termed the 'motor principle', i.e. a current-carrying conductor, when placed in a magnetic field, is subject to a force perpendicular to that field. But that's where the similarity ends, for the operating coil in a galvanometer is restricted to move within an arc, whereas a motor's coil will continuously rotate.
What makes spark at water panels in electric arc furnace?
Not appropriate earthing condition
What can cause a MCC to explode by arc flash if the mill is not running?
If power is provided to the Motor Control Center and someone or something creates a short or spark at an inopportune location, an arc flash can result.
Difference between ERW and SAW welding?
SAW welding is a type of arc welding while ERW welding is spot or seam welding. SAW stand for submerged arc welding while ERW stands for electric resistance welding.
What is an arc lamp?
An arc lamp is a general term for a class of lamps that uses an electric arc or voltage arc to create light. You've seen the bright light given off by electric arc welding, and the idea of the electric arc is the principle behind an arc lamp.
What has the author Hertha Ayrton written?
Hertha Ayrton has written: 'The electric arc' -- subject(s): Electric arc
What is the relationship between the electric arc temperature and the efficiency of industrial welding processes?
The electric arc temperature in industrial welding processes directly affects the efficiency of the process. Higher arc temperatures can lead to faster melting of metals and better penetration, resulting in faster and more effective welding. However, excessively high temperatures can also cause issues like spattering and distortion of the metal, reducing efficiency. Therefore, maintaining the right balance of arc temperature is crucial for optimizing the efficiency of industrial welding processes.
How may you Explain the role of sensory and motor neurones in a reflex arc.?
what is the role of sensory and motor neurones in a reflex arc
How do you make electric arc?
How do you make a simple plazma arc using tungsten wire.
How do you calculate arc length in electric arc furnace?
To calculate the arc length in an electric arc furnace, you can use the formula: ( L = \theta \times r ), where ( L ) is the arc length, ( \theta ) is the angle in radians, and ( r ) is the radius of the arc. First, determine the angle that the arc subtends at the center of the furnace, then measure the effective radius from the arc's origin to the point where the arc terminates. Multiply these values to find the arc length.
What is full form of ARC in arc welding?
The 'arc' in arc welding is not an acronym but in turn is a reference to the electric arc that is being generated during the welding process.
What is the proper ampere rating of circuit breaker for electric arc welder?
The proper ampere rating of a circuit breaker for an electric arc welder depends on the arc welder. Each is different. Look at the nameplate on the arc welder and choose the circuit breaker and wiring accordingly.
What is EAF?
EAF stands for electric arc furnace.
What is an EAF?
EAF stands for electric arc furnace.
What is the difference between a galvanometer and an electric motor?
Well, both work on what is termed the 'motor principle', i.e. a current-carrying conductor, when placed in a magnetic field, is subject to a force perpendicular to that field. But that's where the similarity ends, for the operating coil in a galvanometer is restricted to move within an arc, whereas a motor's coil will continuously rotate.
What is a carbon arc lamp?
An arc lamp is a lamp that produces light by an electric arc. The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the early 1800s, was the first practical electric light.
