Using carbon
brushes provides good commutation and acts
as lubricator and enables high consistency even at an extreme
condition. It helps in good data transmission and is beneficial for
carbon-based material for good performance. This helps in low
maintenance expenditure, which is highly economical in service. Data
transfer occurs with specialized electric brushes, Jcb carbon
brushes, carbon brushes, motor brushes, electric mechanical brushes,
or ordinary brushes.
How do brushes help in a DC motor?
Machines
need motors to operate in good condition. Carbon brushes play a key
role in DC motors enabling commutation. It transfers current from the
rotating part of the electric motor. DC motor consists of more than
one carbon brush with various terminals. Almost all the components
help in conducting electric current between the moving parts and the
static parts as well. For more effective functioning and for heavy
use, consider evolution
carbon brushes.
Grade-based use of brushes
Use
of type of brushes depend on the base material. For example, electric
brushes are categorized into several groups:
Amorphous
carbon - used in electro-plating tools and suitable for small
motors with high-speed revolutions.
Electro-Graphite
- used for loading machines equipped with special material for
unremitting different current motors such as generators and electric
motors for effective functioning. The coils of the motor should be
connected to complete an electrical circuit.
Major advantages of using carbon brushes
Let
us see the 5 main advantages of using carbon brushes.
Feature a high melting point
Compared
to copper and other materials, these brushes have high melting point
with 3550-degree centigrade melting temperature. In a DC motor, the
brush is connected to the commutator and chances of spark and
friction occur when the motor functions. Carbon brushes can withstand
this friction and heat.
Comprised of soft metal
The
brushes are made of very soft metal, which does not damage the
commutator during friction.
Featuring a negative temperature co-efficient
With
negative temperature co-efficient, when there is an increase in the
temperature, the resistance is reduced.
Flexibility
Brushes
usually adopt to shapes due to the softness in material. When fixed
with a commutator, it takes the shape of it.
Acts as a self-lubricator
It acts as a self-lubricator and does not require
to grease or lubricate the motor.
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