XIAOMI MIUI 8.2.2.0

HELLO FRIENDS, TODAY I GOT NEW UPDATE ON MY REDMI NOTE 3 MOBILE MIUI 8.2.2.0.

REVIEW WHATS NEW IN THIS VERSION: MIUI 8.2.2.0

Lock screen,  Status Bar, Notification Bar:

  1. New-Swipe to delete lock screen notification.
  2. Fingerprint can be used as the privacy protection.
  3. UI adjustment for toggles.
  4. Battery saver toggle can be added to the notification shade.

Home Screen:

  1. Home screen setting added to the setting.

Virus Scan:

Antivirus scans for the app installed not from google play store.

WATCH THIS VIDEO:

OPTIMIZATIONS IN THIS VERSION:  MIUI 8.2.2.0

Lock screen,  Status Bar, Notification Bar:

  1. Lock screen PIN layout.
  2. UI adjustment for screen lock, password and fingerprint.
  3. Changes icons for USB charging and switching keyboards.
  4. Floating notifications wont appear in DND (do not disturbed) mode.

FIXES IN THIS VERSION:  MIUI 8.2.2.0

Lock screen,  Status Bar, Notification Bar:

  1. Notification shade issues during incoming call floating notification.
  2. WI-FI page made the devices freez when it was opened for the first time.
  3. Issues with opacity after using third party themes.
  4. The first notification could not be removed by a swipe.
  5. Landscape mode issue with third [party themes.

Home Screen:

  1. Part of UI for deleting apps was not visible on light backgrounds.
  2. Minor adjustment for animations in the launcher.

note: BUT AS ALL XIAOMI USER  ASPECT NEW 8.2 VERSION COMES WITH ANDROID 7.0 NAUGAT  BUT NO MIUI 8.2.2.0 COMES WITH SAME MARSHMALLOW 6.0.1 VERSION.

BUT YES THIS VERSION IS GREAT TOO MUCH BUG FIXES IN THIS UPDATE.

THANK YOU MIUI.

TO KNOW ABOUT XIAOMI MIUI 8.1.1.6 CLICK HERE.

 

 

COMPARISON BETWEEN AC AND DC FOR TRANSMISSION AND DISTRIBUTION

AC DC TRANSMISSION DISTRIBUTION

Electrical Power can be transmit and distribute in both system AC and DC. But Both system have their Advantages and Disadvantages. so, lets Discuss….

Advantages of DC for Transmission and Distribution:

  • In DC system there is only two conductor required where in AC three conductor required. Hence much conductor saved.
  • There is no inductance, capacitance, phase difference and surge problem for that small amount of voltage drop comparing to AC. Voltage regulation on DC system is better than AC.
  • There is no skin effect in DC for that conductor has less cross section area.
  • DC system requires less insulation as potential stress is 1/√2 times of that in AC system for same working voltage. for that price of cable is low.
  • In DC line Corona loss is very low.
  • DC line has reduce interference with communication circuits.
  • Underground cable can be use because of less potential stress and dielectric loss.
  • No stabilizer is required for transmission over long distance.

Continue reading “COMPARISON BETWEEN AC AND DC FOR TRANSMISSION AND DISTRIBUTION”

HIGH VOLTAGE DIRECT CURRENT (HVDC) TRANSMISSION intro

hvdc

In initial stages DC used to be employed for Generation, Transmission and distribution of electric power. First DC 110 Volt Central Electric Station was installed by Edison in New York in the year 1882. After Introduction of Transformer and single phase, Three Phase AC system the situation changed, in favor of AC.

WHY HVDC:

For many reason such as facility of transformation of voltage from one to another, better performance AC power become popular and starts to use widely in all cases transmission, generation, distribution.

But the supporter of DC did not forget the advantage of DC transmission and extensive research has been carried out in this field. As a result it has staged a sort of come back to the field of electric power transmission at a high and extra high DC voltages. Continue reading “HIGH VOLTAGE DIRECT CURRENT (HVDC) TRANSMISSION intro”

MECHANISM OF LIGHTNING

dielectric strength

HISTORY:

Benjamin Franklin performed a famous experiment of FLYING KITE in thunder cloud in the year 1745. Before his discovery the lightning used to be considered to be “ACT OF GOD”. He also proved that the lightning stroke is because of the discharge of electricity. He also invented protection of lightning. Lightning rods for fixation on tall buildings and grounding for their protection from lightning stroke. Thus Benjamin Franklin is a great scientist in this field.

WHAT IS LIGHTNING? 

Lighting is a huge spark which is due to electrical discharge taking place between the clouds within the same cloud or between the cloud and earth or ground. Large number of discharge occur between or within clouds than earth. And enough of them terminate on to the earth and result in serious hazards. This discharge occurs between electrically charged regions of a cloud (called intra-cloud lightning or IC), between two clouds (CC lightning), or between a cloud and the ground (CG lightning). Continue reading “MECHANISM OF LIGHTNING”

POWER TRANSFORMER

Power Transformer are used for stepping-up the voltage for transmission at generating stations and for stepping-down for further distribution at substation. Usually naturally cooled, oil immersed, On type, two winding. three phase transformer are used up to the rating of 10 MVA. The transformers of rating higher than 10 MVA are usally Air-blast cooled.  For very high rating transformer the forced oil, water cooling or air blast cooling may used.

For regulating the voltage the transformers used are provided with on load tap changer. They are put in operation during load hours and disconnect during light load hour, that is they are usually operated at approximately full load condition. This is possible because they are arranged in bank and parallel with other  unit or disconnected at will.

Design: Power Transformer

So power transformer are designed to have maximum efficiency at or near full load condition. that is iron loss to full load copper loss ration is 1:1.

Power Transformer are designed to have consider leakage reactance than permissible in distribution transformers because in power transformers inherent voltage regulation is not as much important as current limiting effect of the higher leakage reactance.

Power Transformer usually make use of flux density of 1.5 to 1.77, have percentage impedance ranging from 6-18% and regulation 6-10%.

SPECIFICATION OF TRANSFORMER :

  1. KVA rating
  2. Rated voltage
  3. Number of phase (single phase or three phase)
  4. Type of Core ( shell type or core type )
  5. Tapping – if any
  6. Frequency (in INDIA 50hz, USA- 60hz)
  7. Construction ( Delta type or Star Type in case of three phase)
  8. Type of cooling ( air cooling, oil cooling)
  9. Ambient Temperature ( Average 40° C)
  10. Voltage Regulation
  11. No-load Current in ampere or percentage of rated current at at rated voltage and rated frequency.
  12.  Efficiency in percent at full load, half load, 3/4 load at unity or 0.8 pf (power factor).

INSTALLATION:

Power Transformer are generally installed upon lengths of rail fixed on concrete slab having foundation 1 to 1½ meter deep.

 

Know about Transformer- click here

classification of transformer

Instrument Transformer

 

USE LAPTOP OR DESKTOP AS A WIFI HOTSPOT

With the help of some software you can easily do that but without any software you can do it very easily. you can do it in any windows operating system ( i.e.- windows 7, 8, 10, xp, vista)

just follow those step and you can do it yourself…

  1. firstly open your command prompt on administrator mode- for that search command prompt and right click on it and choose RUN AS ADMINISTRATOR or you can go to start>>all programs>>accessories >> command prompt then right click on it and choose run as administrator.command prompt as administrator
  2. after that type a command – netsh wlan set hostednetwork mode=allow ssid=”your network name” key=”password”       hit enter [this step for just one time]
  3. then type a another command to start hosted network- netsh wlan start hosted      hit enter
  4. then go to network sharing center- go to control panel>> choose network & sharing centernetwor sharing center
  5. then choose connection you want to share (click on connected network)
  6. then a box open- click on properties >> click on sharing tab and click on allow check box, a dialog box open click on OK. then below home network connection a selection presents click on it and choose the network you want to share ( connected network)
  7. click on setting tab – advance setting open and check all the boxes ( ftp server, remote desktop, internet mail sever, and many other).  if you check one box a dialog open click OK each time.
  8. finally click on OK.  you are done.

Continue reading “USE LAPTOP OR DESKTOP AS A WIFI HOTSPOT”

RELATION BETWEEN ELECTRICITY AND MAGNETISM

faraday

We know that when an electric current flowing though a conductor a magnetic
field is brought into existence in the space surrounding the conductor. it can
say that when electrons are in motion they produce magnetic field. when a magnetic field embracing a conductor moves relative to the conductor it produces a flow electrons in the conductor. This phenomenon whereby an e.m.f and current is induced in any conductor which cut across or cut by a magnetic flux is known as ELECTROMAGNETIC INDUCTION.

HISTORY OF MAGNETIC INDUCTION:

After discovery of that electric current produces  magnetic field, scientist are trying to search for the converse phenomenon from about 1821. The problem they put themselves was – how to convert Magnetism to Electricity. It is recorded that Michael Faraday ( A English Physicist and Chemist) was in the habit of walking about with magnets in his pocket so as constantly remind him of the problem to solve.

After Nine year of continuous full phase research and experiment he succeeded in the producing electricity by converting magnetism. In 1831 he formulated basic laws underlying the phenomenon of electromagnetic induction, after that these know by Faraday’s Law. Motor, Generator, Transformer, Induction cooker and many other apparatus based on this law.

EFFECT OF ELECTRIC CURRENT ON HUMAN BODY

electric shock

At first Bruner (1967) states that “The threshold of perception  of electric shock is about 1 mA.” At this level a tingling sensation is felt by the subject when there is a contact with an electrified object through skin. If the magnitude of electric increase the sensation of tingling gives way to contraction of muscles. The muscular contraction increase as current is increase. Finally a value current is reached at a point that the subject cannot release his grip on the current carrying conductor.

The maximum current at which the subject is still capable of releasing a conductor by using muscles directly simulated by the current is called LET GO CURRENT.

Continue reading “EFFECT OF ELECTRIC CURRENT ON HUMAN BODY”

INSTRUMENT OR MEASUREMENT TRANSFORMER

CT PT

In dc circuit when large current are to be measured its normally use low range ammeter with suitable (low resistance) shunt connected in parallel. when large voltage are to be measured use low range voltmeter with high resistance  connected in series. But this method is not convenient for practical use for AC voltage and current instruments.

For this purpose specially constructed with high accuracy Instrument Transformer or Measurement Transformer are used.  Their purpose is to reduce line current or voltage to a value small to be easily measured with meters of moderate capacity.

Instrument Transformer are two in types: Continue reading “INSTRUMENT OR MEASUREMENT TRANSFORMER”

PRIMARY AND SECONDARY BATTERY

PRIMARY AND SECONDARY BATTERY

Electric battery consists of a number of electro-chemical cells, which  may connected in either parallel or series. electrical battery is a source of DC voltage,

DEFINATION OF CELL: 

a cell is a basic unit of a battery. it is defined as power generating device, which can converts storage chemical energy into electrical energy.

PRIMARY BATTERY: NON RECHAREABLE

If the stored chemical energy is constitutionally or inherently present in the chemical substances, its called primary cell or non-rechargeable cell. if the battery made up with these kinds of cells the battery is call PRIMARY BATTERY.

EX- zinc chloride cell, alkaline-manganese cell, metal air cell and Leclanche cell. Continue reading “PRIMARY AND SECONDARY BATTERY”