Friday, 30 December 2016
Sunday, 25 December 2016
Thursday, 22 December 2016
Saturday, 17 December 2016
Monday, 12 December 2016
Friday, 9 December 2016
Tuesday, 6 December 2016
Sunday, 4 December 2016
Saturday, 3 December 2016
Wednesday, 30 November 2016
Sunday, 27 November 2016
Saturday, 26 November 2016
Tuesday, 22 November 2016
Sunday, 6 November 2016
Resistor color coding
hi guys in this video resistor color coding explain very easy and simple method....
resistor color code tutorial,
resistor color code in hindi,
resistor color code calculator,
resistor color code song,
resistor color code wheel,
resistor color code tutorial tagalog,
resistor color code in urdu,
resistor color code chart,
resistor color code wheel tutorial,
resistor color code 5 band,
resistor color code,
resistor color code in telugu,
resistor color code in matlab,
resistor color code reading,
resistor color code tamil
click this link https://youtu.be/UUfTRSTjlK8
Friday, 4 November 2016
Lighting wiring diagram
HI guys in this video light wiring diagram was explained very clearly ....
https://youtu.be/jr3TLqnSAx8
lighting circuit diagrams,lighting circuits part 2,
lighting circuit test,
lighting circuit uk,
lighting circuit diagrams uk,
ac led lighting circuit,
one way lighting circuit,
two way lighting circuit,
2 way lighting circuit,
lighting circuit,
basic lighting circuit,
lighting circuits,
wiring lighting circuits,
electrical lighting circuits
HI guys in this video light wiring diagram was explained very clearly ....
https://youtu.be/jr3TLqnSAx8
Wednesday, 26 October 2016
Why 3 phases only ? Why not 6,9,12...
why 3 phase only ? why not 6,7,8,9 12 phases not explain
polyphase, 60 degrees, power poles, overhead, hvdc, high voltage, AC, alternating current, experimental, bus bar, transformer, GE, PTI, power technologies in..."> why 3 phase power why not 6 or 12,
why 3 phase power,
why 3 phase power why not 6 or 12 in hindi,
why 3 phases,
why 3 phase supply,
why 3 phase
Power factor meters connection
In this video how to connect power factor meter connection and their terminals also explained ..
power factor meter connection diagram
analog power factor meter connection diagram
digital power factor meter connection diagram
digital power factor meter connection
power factor meter connections
three phase power factor meter connection
3 phase power factor meter connection diagram
single phase power factor meter connection
3 phase power factor meter connection
Tuesday, 11 October 2016
Earth leakage relay
Earth leakage relay
Clearly explained for ELR very simple method and examples
need more details plz visit https://www.youtube.com/watch?v=t1bHZ_-bOEs
Clearly explained for ELR very simple method and examples
need more details plz visit https://www.youtube.com/watch?v=t1bHZ_-bOEs
Vfd simple explanation
VFD simple explanation
Veritable frequency drive of motor explained simply and then how to work of vfd and diagram then motor speed control by vfd ,how to frequency change by vfd device
more details plz visit https://www.youtube.com/watch?v=rRcDnP7C1rA
UVR under voltage regulator
UVR- under voltage regulator working principal
How is working of UVR timer, diagram, types of UVR ,how is working ,examplain in very simple ...
plz visit link https://www.youtube.com/watch?v=cp6_QPQ1WF8
Form 4 types and explain
Form 4 panels types and explain
Lv panel types and form panels how to different we find it like a form 1& 2.it will be clearly explained by this video,form panels. have seven more types like a form 1,2a,2b,3a,3b,4type1-7 how to separate from busbar ,functional unit,outgoing terminal and separation material s ...
if you want more details plz visit link
United Arab Emirates how to choice bus bar ratings in LV panel in switch gears and sharjah,dubai,abu dhabi
United Arab Emirates how to choice bus bar ratings in LV panel in switch gears and sharjah,dubai,abu dhabi
How to choice bus bar ratings in Sharjah,Dubai and Abu Dhabi in UAE.generally busbar sizes.how to calculate busbar in UAE switch gears what a manipulation factors to choice busbar in Sharjah,dubai and Abu Dhabi.The amps ratings based to choice busbar in UAE..
https://youtu.be/YPFobX5ZFqE
https://youtu.be/YPFobX5ZFqEhttps://youtu.be/YPFobX5ZFqEhttps://youtu.be/YPFobX5ZFqEhttps://youtu.be/YPFobX5ZFqEhttps://youtu.be/YPFobX5ZFqE
if yours need more details plz visit this link https://www.youtube.com/watch?v=YPFobX5ZFqE
Friday, 30 September 2016
Maximum demand and diversity factor
MAXIMUM DEMAND
Largest current consume equipment in that network is called maximum demand.Example-loads are 10kw,45kw,70kw,14kw,7kw and 6kw in this network 70kw is maximum demand
AVERAGE LOAD
The ratio between Sum of connected load to the network and number of loads connected to the system..Example-loads are 10kw,45kw,70kw,14kw,7kw and 6kw in this network (10+45+70+14+7+6) /6=25.33kw
DEMAND FACTOR
The ratio between maximum demand of the system and total load connected on the system.Example-M.D=70KW,TOTAL LOAD=153KW so 70/153=0.457.demand factor is mostly less the one (D.F<1)
DIVERSITY FACTOR
The ratio between sum of individual maximum demand and maximum demand on power system.It will be maintained more then one (>1).Example-M.D=70 kw,individual maximum demands =152 .so 152 / 70=2.17.
LOAD FACTOR
The ratio between average load and maximum demand during a given period,its used to determine the overall cost per unit generation.Example-we take one motor have name plate 20 hp but not consumed all ways 20hp we take 17hp so now 17/20=85%.
Thursday, 22 September 2016
Logic gates and type's
LOGIC GATES AND TYPES
Gates are made by semiconductor`Gates are have three more types.They are AND,OR,NOT,NOR,NAND EXT,Then AND,OR & NOT gates are univercell gates because of we made any of outputs of these three gates .
GATES
What's a inside of gates and how its made by gate let we see.GATES are consist of diodes.Diodes are have two terminals anode and cathode,mostly its working in forward direction and lets see diagram.
This one is OR gate inside diagram its consist of two diodes if you give any of terminal positive supply you got output other wise not yet then one more information if you give any one terminals positive supply got output otherwise if you give two terminal positive got much outputs.
A B Y '+V '
0 0 0 0 volts
1 0 1 5 volts
0 1 1 5 volts
1 1 1 10 volts
A&B-INPUTS
Y - OUTPUT
V - VOLTAGE FROM OUTPUT
1- +5 Volts
0- 0 Volts
AND GATE
In above diagram is AND gates inside consist diagram its have two diodes in their two terminals but have reverse direction so you give negative supply then only its works.
DIODES
Diodes is semiconductor devices its have two terminals anode(A) and cathode(k) its working in only for forward direction and working in negative direction also but after breakdown voltage.
APPLICATIONS OF GATES
Program logic control(PLC) is consist of logic gate then using programs to control the real time machines,like a motor,big machines and welding machines ext.
Thursday, 15 September 2016
Dol starters
DOL STARTER
DOL starter means direct online starter .Online means people are thing about social networks yes like that only because switch on power supply then motor will going to run position so we going to see how is this working and its control diagram step by step
NOTE ;
NC- Normally closed
NO-Normally open
K-Contactor
OLR-Over load relay
H&A-hand off auto
in above mentioned are basics of control panel terms so note it then generally motor start and stop button need so see below
after that we need for indication for run and trip those are the thing add in below drawing
this one is final diagram for dol starter simple method
Friday, 9 September 2016
Control panel basic
control panel basics ;
1.common power supply
2.Relay basic NO NC
3.switch on motor by using relay
4.switch on motor by using relay, contactor,timer
common power supply;
This one is common power supply for ATS and any of two power system application areas we utilized.
Then how its working just see if we going to do main and gen supply system so need control power supply that one is need uninterrupted power then only need common supply concept lets we go and see ....
A.power supply 2 on position
B.power supply 1 on position
power supply 2 ON position;
Now power supply 2 is switched on so we got power from common supply terminals then note now relay is off position that why NC are in their position so we getting power for send source.
power supply 1 on position ;
Now power supply 1 is switched on so we got power from common supply terminals then note now relay is ON position that why NC are not in their position,NO are connected common terminal so we getting power for send source.
Relay basic NO & NC;
Generally relay have three important terminals NO,NC &COM then coil supply terminals first we giving supply check auxiliary supply voltage mostly 230V,110V ,24V AC or DC.
lets see above diagram relay OFF position and ON position,at time of OFF position NC connect to common then ON position NO connect to common this is simple methods of relay basic.
switch 'on' motor by using Relay;
RELAY OFF POSITION DIAGRAM
RELAY ON POSITION DIAGRAM
As per the relay basic in supply available NC will go for NO then NO goes to NC with common terminals so motor getting supply for at time.we show that two position of motor and relay.
switch 'on'motor by using relay, contactor and timer;
SWITCH ON MOTOR BY USING RELAY, CONTACTOR
SWITCH ON MOTOR BY USING RELAY,CONTACTOR &TIMER;
Friday, 2 September 2016
New electric bike project 2016
NEW ELECTRIC BIKE PROJECT 2016
DESIGN AND IMPLEMENTATION OF A novel power scrambler FOR IMPROVING
FUEL EFFICIENCY.
Abstract
To meet the challenges
of constantly rising fuel supplies, a new power scrambler with high efficiency
is designed by increasing the kilometre range. In all kind of bikes, mechanical
energy is produced in the front wheel during roving. In this paper, a technique
is proposed to utilize the mechanical energy by using an alternator for
conversion. Alternator is placed in the front wheel of power scrambler which
converts the mechanical energy into electrical energy. Various power
electronics circuits are intended, to utilize the produced energy for charging
the battery in the power scrambler. This helps in increase the efficiency of
the power scrambler. For instance if 10:1:5 is the kilometre ratio of the
electric bike, with the use of the alternator, the kilometre will be decreased
by the ratio 10:1. But subsequent to its connection to the charging system, the
kilometre is increased by the ratio 10:5. The main objective of this paper is
to increase the usage of the electric bike, since this will reduce the usage of
the extinct fuels.
Keywords:
Power
scrambler (electric bike), BLDC motor, DC-DC boost converter, Lead-acid
battery.
INTRODUCTION
BLOCK
DIAGRAM OF OUR PROJECT
In this block
diagram, there are two blocks one is the existing system, which is already in
the e-bike and another one is the new system, which we are implementing in the
new power scrambler. In the existing system, battery is charged by using the
wall-charger. Then the control unit is provided to control the overcharging of
the battery and to separate the supply for head light and indicator light and
also used to convert the DC to 3 phase AC for providing supply to the BLDC
motor in the back wheel of e-bike. In our project, we are placing the
alternator in the front wheel, it will convert the mechanical energy into
electrical energy.
PROJECT
DESINGNING REQUIREMENTS
CIRCUIT
DIAGRAM
This is the DC-DC boost converter circuit used in our project, for boosting up the output voltage of the alternator. We are getting the 12 voltage output from the alternator. This voltage is not sufficient for charging the batterybecause the charging voltage of the battery is 48v. So the circuit is used in our project.
ALTERNATOR
In the front wheel of the e-bike, BLDC
motor was used as an alternator in this project. Because the motor was used in
all type of e-bikes in the back wheel. The field of an alternator is permanent
magnet. So it does not need supply but it will produce emf(electro motive
force) and also the motor will be compact in size for placing in front wheel.
PROJECT
DESCRIPTION
In all kind of bikes, mechanical energy
is produced in the front wheel during the travelling time but it is not
utilised. In our project, we are placing the alternator in the front wheel. An alternator
will convert mechanical energy in to electrical energy. From that alternator,
we are obtaining the output voltage varying from 0-30v. for our convenience, we
are making the voltage constant of 12v by using the zener diode. But the 12v is
not sufficient to charge the battery. So, we are using the DC-DC boost
converter circuit for boosting up the voltage up to 48v for charging the
battery.
GRAPH
BATTERY
We are using the 48v sealed lead acid
battery. Here, it will be separated in to four 12v batteries because for our
size of convenience. Then the four 12v batteries are connected in series.
CONCLUSION
We are already having the high speed and high
load capacity electric bike in the market. E-bike is the pollution free bike
but it is not efficiently used due to many reasons. One of the main reason is
the lack of kilometre range. So we are improving its efficiency. In near
future, fuel may become extinct. So the fuel bikes are not used. At that time
an alter method will be needed, so this will be helpful at that time.
REFERENCES
1.Yoshihiro Nakazawa, Chiaki Humagai, Mikio Kato.
“Development of an electric scooter for practical
use” in JSAE
Review 15 (1994) 373-377
2. Chien-Tung Liu, Bing-Ming Lin, Jyh-Sheng Pan.
“Design and development of a zero-emission scooter
for Taiwan” in Journal of Power Sources 59
(1996) 185-187
3. Peter A. Lehman, Charles E. Chamberlin. “Design
and Performance of SERC’s Fuel Cell Powered
Vehicle
Fleet” in Fuel Cell Seminar Abstracts
1998. 714-717
4. H. Yamamura, R. Masaki, O. Koizumi, K. Naoi and
S. Naito,
“Development of powertrain system for Nissan FEV”,
in
Proceedings of the 11th Electric Vehicle Symposium, Florence,
Italy,
1992.
5. J. Marcos, C. M. Peñalver. "An approach to
real behaviour modeling for
traction lead-acid batteries". 32nd Power
Electronics Specialist
Conference
(PESC'2001). Vancouver, Canadá, June 17-22, 2001.
6.Guide for calculating mechanical and electrical
engineering technician guide hatchette technical
editor
7.Bundesamt für Umwelt, Wald und Landschaft (BUWAL),
Sektion Verkehr und
verschiedene Autoren, 2004, “Elektro-Zweiräder, Auswirkungen auf das
Mobilitätsverhalten”.
8.N. H. Kim, O. Yang, M. H. Kim, “BLDC motor control
algorithm for
industrial applications using a general purpose
processor,” Journal of
Power
Electronics, Vol. 7, No. 2, pp. 132-139, Apr. 2007.
9.John G.W. West, “DC, induction, reluctance and PM
motors for electric
vehicles”,
POWER ENGINEERING JOURNAL,
APRIL 1994, pp. 77-88.
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