Elecrical Knowledge

 Battery charging:     Battery charging means that the secondary cell density is less than 0.8 or it is charged immediately to recharge the battery.                       Generally, DC to charge secondary cell. Is used but every space is in DC Since there is no getting it, AC needs to be converted into DC and then the battery is charged. This type of tangor bulb type rectifier is usually used, The motor generator set is used for this method where the battery is charged.                      For this, the connection of the positive terminal of the DC source should be done with the positive terminal of the battery and the connection of the negative negative terminal of the source should be done with the negative negative terminal of the battery. If the polarity succeeds, then the DC ends the two ends of the source connecting the battery Negative wires subme...

                            When the motor comes in to start, the resistance of the armature will be zero, since the starting current will pass through the armature in a very large amount. However, if this motor is connected directly to the line, then in that case, it may get very much current in the beginning. That fuse flies and damages to the motor's commutator and also damages the carbon brush                Eg. 440 v, 3.75kw. The idea of ​​the motor's resistance to the order is 0.25 ohm and the value of the flower load current is 50 A. Now if the motor is directly started on the line, then in the case of the motor will take 440 / 0.25 = 1760A The value of which will be 35.2 times the load current.                 In order to avoid this, the resistance in the series of Artefacts is introduced only for start of 5 to 10 seconds f...

                                           Sometimes sparking occurs on the generator or on the commutator of the motor, the reasons are shown as follows Rubbed brush The grade of brush is false The brush is sticky The pressure on the brush should not be exactly the same The surface of the computator is rough The brush is not suitable for bending The space between the brush is not the same Mike has stepped out of the segment The condition of the brush is wrong There is a meaning fault in the armature Artychat being short Overload is also responsive ગુજરાતી માં માહિતી માટે અહીં ક્લિક કરો  हिन्दी में जानकारी के लिए यहाँ क्लिक करे  

         The output voltage of the generator is decreasing or increasing in the proportion of loads generated over the generator, so it needs to be kept constant so that the output voltage of the generator needs to be kept in control, which can be explained by two ways as follows. 1. By changing the field current and 2. By changing the speed of the generator 1. By changing the field current                                                 In this type of way, the value of field curtants is changed by placing variable resistance in the field of field sounding. Changes in the value of the field current will also change in the magnetic field and therefore it is possible to edit the desired amount in the output voltage. 2. By changing the speed of the generator:                     ...

DC Compound Generator:                     This type of generator is a mixed example of series and shutter generator. In this generator, its internal field has the connection of series and shunt type. Its connection is found in the figure. This type of generator has two main types. 1.Comyutetiv Compound Generator 2. Diffractional Compound Generator Commutative compound generator also has two types again 1.Comyutetiv Short Shunt Compound Generator 2.Comyutetiv Long Shunt Compound Generator Similarly, there are also two types of differential compound generator 1. Differential Short Shunt Compound Generator 2. Differential Long Shuttle Compound Generator              Since the use of Short Shut Commutative Compound Generator is overly used, we discuss that the combination of the shunt field in the generator of this type is done in the acrostic armature. And the di...

DC Shunt Generator                    In this generator the field is connected with the armature and the load in parallel In this generator, the terminal voltage can be controlled by placing the resistor in the field circuit which changes the field current. Its field winding is made up of several corners of thin wire The characteristic of the shutter generator:                 When the current flows, the voltage drops due to the barrier of the armature, the brush Arteractic reactions reduce the total flux and decreases the amount of indus emf. Due to reduction in terminal voltage, the shunt field also decreases fluctuating current due to which it decreases again in flux and therefore in indoor emf Use of the shunt generator:          1. This type of generator is used for battery charging because it gives the correct voltage according to the...

DC series Generator: ગુજરાતી માં માહિતી માટે  અહીં ક્લિક કરો   हिन्दी में जानकारी के लिए  यहाँ क्लिक करे                               In this type of generator, the field field's winding is made of thick copper chains or copper leaflets, and it is attached to the series with armature and load. The circuit must be closed before the machine is exposed. The use of the series generator For specific projects such as booster.                             In this type of generator, the voltage also increases as the load increases. Characteristics of Series Generator: 1.Increasing armature current increases the artery resistance, which reduces the total flux and also reduces the terminal voltage. 2.Due to the Armature drop, the voltage in the terminal voltage reduces compared to the voltage produced 3...

What is field exaitetion ગુજરાતી માં માહિતી માટે અહીં ક્લિક કરો हिन्दी में जानकारी के लिए यहाँ क्लिक करे                 The arrangement for generating field flux by sending direct current from field coils is called acetylation. Field Overwriting Type: D.C. Generator Type:                 And when to get the current of the field to be displayed on its own armament. And when the field of attaching the field is done by the current on its own armature. Then it is called the self-generated or self-generated generator of the generator. Thus, on the way to demonstrate the field, the DC generator can be divided into two types Are there 1. Separately Exaited Generator:                 In this type of generator, flux is produced by winded coils on the top of the pole casing. In Paul's pseudo, the external source can be passed from D, C, this can be external ...