What is the function of brush in DC generator ?

What is the function of brush in DC generator ?
by

1 Answer

Answer :

The brush on the DC generator looks a lot like a rectangle. The brush is used for contacts that supply the output. It is made of carbon graphite.
by

Related questions

What is a brush made of ?

Description : What is a brush made of ?

Last Answer : Over time and with the help of modern advanced technology, toothbrushes are usually made of synthetic fibers or synthetic fibers. In ancient times, toothbrushes were made from animal fur. The use of fur toothbrushes is still seen in some parts of the world.

Where is the carbon brush used ?

Description : Where is the carbon brush used ?

Last Answer : Carbon brush is used in motors. The motor holding the carbon brush acts as a specific carbon brush.

Insufficient brush pressure on a DC motor may cause _______. A. generator overload B. excess residual magnetism C. water vapor absorption D. sparking of the brushes

Description : Insufficient brush pressure on a DC motor may cause _______. A. generator overload B. excess residual magnetism C. water vapor absorption D. sparking of the brushes

Last Answer : Answer: D

On some diesel-electric ships, the DC propulsion motor will only attain half speed when the generator fields are fully excited. Speeds above this are obtained by _____________. A. rotating brush alignment B. raising the generator engine speed C. lowering the generator engine speed D. decreasing excitation

Description : On some diesel-electric ships, the DC propulsion motor will only attain half speed when the generator fields are fully excited. Speeds above this are obtained by _____________. A. rotating brush ... B. raising the generator engine speed C. lowering the generator engine speed D. decreasing excitation

Last Answer : Answer: B

What is the formula for determining the efficiency of generator ?

Description : What is the formula for determining the efficiency of generator ?

Last Answer : Generator efficiency = (effective power * 100) / given power

What do you mean by DC circuit ?

Description : What do you mean by DC circuit ?

Last Answer : DC means direct current. All the circuits that work through the DC source are called DC circuits .

What is DC Ampere ?

Description : What is DC Ampere ?

Last Answer : The amount of direct current that flows in a solution of silver nitrate and water, if 0.001118 grams of silver sediment is deposited per second , then the amount of current is called one ampere.

The function of a brush and commutator arrangement in a dc motor is to

Description : The function of a brush and commutator arrangement in a dc motor is to  (1) produce unidirectional torque (2) produce unidirectional current in the armature (3) help in changing the direction of rotation of the armature (4) reduce sparking

Last Answer : The function of a brush and commutator arrangement in a dc motor is to produce unidirectional torque

What is the function of transformer bushing ?

Description : What is the function of transformer bushing ?

Last Answer : Answer : The transformer is brought out of the tank by bushing at the winding terminals. These bushings are made of very fine porcelain. These are attached to the lid of the tank with a gasket ... the transformer winding. Their number , size and method of connection depend on the amount of voltage.

What is the function of Transformer's conservator ?

Description : What is the function of Transformer's conservator ?

Last Answer : Oil increases in volume when it is hot and decreases in volume when it is cold. A drum is placed on the tank to facilitate growth and reduction. This drum is called Conservator. It is ... the conservator, while when the volume decreases, the oil comes down from the conservator to the tank.

What is the function of phase limiter ?

Description : What is the function of phase limiter ?

Last Answer : A special part of the FM radio receiver is the limiter. If any type of amplitude modulation is present within the specified amplitude of the FM signal, it can be removed with the help of limiter by FM detection method. As a result, the operation of the FM discriminator is well accomplished.

What is the function of UPS ?

Description : What is the function of UPS ?

Last Answer : : UPS function UPS or Uninterruptable Power Supply is a device which automatically charges itself during the power supply and allows the LED to run from the AC line .

What is the function of logic gate ?

Description : What is the function of logic gate ?

Last Answer : Signals can be exchanged through binary arithmetic solutions.

What is the function of network hub ?

Description : What is the function of network hub ?

Last Answer : The hub of the network provides data exchange.

What is the function of capacitor ?

Description : What is the function of capacitor ?

Last Answer : The job of a capacitor is to hold an electric charge. Capacitors have the same capacity as a rechargeable battery to hold a charge , but in a very short range.

What is the function of charge controller ?

Description : What is the function of charge controller ?

Last Answer : Protect the battery from various damages. For example: overcharging battery swelling.

What is the function of solar panel ?

Description : What is the function of solar panel ?

Last Answer : : The function of a solar panel is to convert solar energy into electrical energy in the presence of sunlight.

What is the function of main switch ?

Description : What is the function of main switch ?

Last Answer : The function of the main switch is to control the entire user's circuit.

What is the function of control device ?

Description : What is the function of control device ?

Last Answer : The function of the control device is to control the current flow in the circuit.

What is the function of fuse ?

Description : What is the function of fuse ?

Last Answer : The function of the fuse is to protect the whole circuit from overheating due to high voltage.

What is the function of oil in transformer ?

Description : What is the function of oil in transformer ?

Last Answer : The job of transformer oil is to cool the transformer. So that the transformer does not get hot and burn.

What is the function of damper in transmission line ?

Description : What is the function of damper in transmission line ?

Last Answer : : Using a damper on the transmission line protects the pole from vibration.

What is the function of MCB ?

Description : What is the function of MCB ?

Last Answer : MCB's job is to automatically disconnect the circuit from the source by turning it on and off.

Chattering of the collector ring brushes on a generator may be remedied by _____________. A. lubricating brush holders B. reinsulating the brushes C. cleaning the collector rings D. increasing length of pigtail

Description : Chattering of the collector ring brushes on a generator may be remedied by _____________. A. lubricating brush holders B. reinsulating the brushes C. cleaning the collector rings D. increasing length of pigtail

Last Answer : Answer: C

Brush sparking during commutation may be caused by ________. A. eddy currents in the armature core B. laminations in the generator field pieces C. induced current opposite to coil inductance D. coil inductance discharge occurring at commutation

Description : Brush sparking during commutation may be caused by ________. A. eddy currents in the armature core B. laminations in the generator field pieces C. induced current opposite to coil inductance D. coil inductance discharge occurring at commutation

Last Answer : Answer: D

One of the generator bearing shells is generally insulated from the end housing in order to prevent _____________. A. rapid brush wear B. residual magnetism leak off C. excessive field winding heat D. circulation of shaft currents

Description : One of the generator bearing shells is generally insulated from the end housing in order to prevent _____________. A. rapid brush wear B. residual magnetism leak off C. excessive field winding heat D. circulation of shaft currents

Last Answer : Answer: D

One of the generator or motor bearings is generally insulated from the end housing in order to prevent ________. A. rapid brush wear B. current leakage from the shaft C. excessive field winding heat D. circulation of shaft currents induced in the machine's frame

Description : One of the generator or motor bearings is generally insulated from the end housing in order to prevent ________. A. rapid brush wear B. current leakage from the shaft C. excessive field winding heat D. circulation of shaft currents induced in the machine's frame

Last Answer : Answer: D

Write a step by step procedure of obtaining constant output using three brush generator.

Description : Write a step by step procedure of obtaining constant output using three brush generator.

Last Answer : Ans: Step by step procedure of obtaining constant o/p using three brush generator  1) The field is excited from one main brush X and third brush Z fixed at 90° electrical with normal axis of ... brushes XY The result is in controlling increased load and keeping o/p as far as possible as constant

Sparking at the brushes of a DC propulsion motor can be the result of ____________. A. improper brush pressure B. improper brush seating C. reversed interpole polarity D. all of the above

Description : Sparking at the brushes of a DC propulsion motor can be the result of ____________. A. improper brush pressure B. improper brush seating C. reversed interpole polarity D. all of the above

Last Answer : Answer: D

Propulsion DC motor brush pressures can be calculated by _____________. A. dividing the brush contact area by the spring pressure B. subtracting the brush contact area from the spring pressure C. dividing the spring force by the brush contact area D. subtracting the spring pressure from the brush contact area

Description : Propulsion DC motor brush pressures can be calculated by _____________. A. dividing the brush contact area by the spring pressure B. subtracting the brush contact area from the spring pressure C. ... force by the brush contact area D. subtracting the spring pressure from the brush contact area

Last Answer : Answer: C

The direction of rotation of a DC propulsion motor can be changed by reversing the _____________. A. brush holder position B. polarity of the field poles C. brush staggered order D. motor interpole connections

Description : The direction of rotation of a DC propulsion motor can be changed by reversing the _____________. A. brush holder position B. polarity of the field poles C. brush staggered order D. motor interpole connections

Last Answer : Answer: B

The item referred to as a pigtail on a DC motor brush rigging is a/an ______________. A. feather spring B. uninsulated wire C. flexible spring adjuster D. brush holder

Description : The item referred to as a pigtail on a DC motor brush rigging is a/an ______________. A. feather spring B. uninsulated wire C. flexible spring adjuster D. brush holder

Last Answer : Answer: B

In a 4-pole wave winding connected dc motor, the cross-magnetizing AT/pole for a brush shift of θ radians

Description : In a 4-pole wave winding connected dc motor, the cross-magnetizing AT/pole for a brush shift of θ radians (A) Armature amp-conductors × (θ/360o) (B) Armature amp-turns × (θ/360o) (C) Armature amp-conductors × (1/4 - θ/360o) (D) Armature amp-conductors × (1/8 - θ/360o)

Last Answer : In a 4-pole wave winding connected dc motor, the cross-magnetizing AT/pole for a brush shift of θ radians Armature amp-conductors × (1/8 - θ/360o)

What is the purpose of a dc generator that has been modified to function as an amplidyne?

Description : What is the purpose of a dc generator that has been modified to function as an amplidyne?

Last Answer : It can serve as a power amplifier.

State the function of commutator in DC generator and name the material used for commutator.

Description : State the function of commutator in DC generator and name the material used for commutator.

Last Answer : Function of Commutator: Commutator converts AC induced in armature winding into DC for external load. Material: i) Commutator segments are made up of Copper. ii) Commutator segments are insulated from each other by Mica.

What is the conductivity of molar ?

Description : What is the conductivity of molar ?

Last Answer : The density of a solution as cm. When one mole of electrolytic substance is dissolved in it, the conductivity obtained by multiplying it by the relative conductivity of the solution is called molecular conductivity of the solution .

How do I purchase a product ?

Description : How do I purchase a product ?

Last Answer : From Alibaba you can purchase products by paying MASTER CARD or through bank.

What is an analog signal ?

Description : What is an analog signal ?

Last Answer : Signals whose values ​​change continuously are called analog signals. For example- voltage of electricity supplied to the house.

What is Zener Diod ?

Description : What is Zener Diod ?

Last Answer : Zener diode is a special type of diode which, like ordinary diode, not only conducts current in the forward direction , but also in the opposite direction if the voltage exceeds the level of breakdown ... diode is to use the shunt regulator and the voltage reference as the voltage of the circuit.

What is the multiplying factor of shunt ?

Description : What is the multiplying factor of shunt ?

Last Answer : Answer : The ratio of load or matte current to ammeter current is called shunt multiplying power.

What is ammeter shunt ?

Description : What is ammeter shunt ?

Last Answer : A small amount of radial coupling in parallel with the coil to increase the range of ammeter is called ammeter shunt.

What is short circuit current ?

Description : What is short circuit current ?

Last Answer : Answer : A fault in an electrical system whose current, before or after the current flows through the load, is combined with one or more phases of neutral current which causes more current to flow than normal. The current is called short circuit current.

What is a current limiting reactor ? How many types and what are they ?

Description : What is a current limiting reactor ? How many types and what are they ?

Last Answer : Answer : A current limiting reactor is basically an inductive coil which limits the short circuit current by providing inductive reactance when required. Types: 1. Based on the structure- a) Dry type ... reactor. Basbar reactors are again of 2 types- a) Ring system reactor b) Tiber system reactor

What is the method of diagnosing short circuit current ?

Description : What is the method of diagnosing short circuit current ?

Last Answer : There are three methods for determining short circuit current , namely- 1) Ohmic method 2) Per unit method 3.) Percentage reactance method.

What are symmetrical and asymmetrical faults ?

Description : What are symmetrical and asymmetrical faults ?

Last Answer : Symmetrical Fault: The same amount in each phase due to the float in the electrical system. The fault that causes hot current to flow is called semantic fault. Circuit breaker ratings are determined by ... through each fan is called an asymmetrical fault. The relay is set via asymmetrical font.

What is Basbar and Bas Kaplar ?

Description : What is Basbar and Bas Kaplar ?

Last Answer : Basbar : Basbar is basically a sheet or color of copper or aluminum. It is the job of the bus driver to deliver power to one or more lads with power from one or more cables. Bus ... is basically a combination of circuit breaker and isolator. There are fire proof walls around the bus coupler.

Why is the busbar sectionalized ?

Description : Why is the busbar sectionalized ?

Last Answer : Answer : If an error occurs in any part of the busbar, the operation of the entire busbar system will not stop. The maximum success of this system is due to the interconnection of different sections of the circuit and the smooth distribution in the outgoing circuit.

title : _

Description : title : _

Last Answer : Basbar is a type of copper and aluminum conductive sheet or mata rod , which collects electrical energy from one or more circuits and distributes that energy through one or more circuits.

Write different font names or different short circuit font names ?

Description : Write different font names or different short circuit font names ?

Last Answer : There are two main types of short circuit faults. Namely- 1. Semantic faults and 2. Asymmetrical font Symmetrical fault - a) Short circuit three phases together b) Short circuit asymmetrical fault with three ... result c) Double line to ground font d) Two phase one Circuit and third phase earth.