The document discusses the design of transformers, including their construction types (core type and shell type) and key differences. It also covers the output equations for single phase and three phase transformers, which relate the kVA output to factors like the core area, window space, current density, and number of turns. The equations show that kVA output is directly proportional to factors like frequency, flux, and the product of core area and window space. The document also mentions the ratio of specific magnetic to electric loading (r) used in transformer design and provides typical r values for different transformer types.
I have prepared it to create an understanding of delay modeling in VLSI.
Regards,
Vishal Sharma
Doctoral Research Scholar,
IIT Indore
vishalfzd@gmail.com
Concept of general terms pertaining to rotating machinesvishalgohel12195
Concept of general terms pertaining to rotating machines
Physical concept of force and torque production.
Concept of general terms pertaining to rotating machines.
Generated emf in full pitched and short pitched winding.
Transformers (Especially For 12th Std)Atit Gaonkar
It Is The One Which Will Help A Student To Recall or Study about Transformer.
The Principle, Constructions, Working, Ideal Transformer, Leakages, Efficiency, Cores, Related Solved Problems. etc. are readily available in this power-point.
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus https://ekeeda.com/streamdetails/stream/Electrical-Engineering
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus Visit : https://ekeeda.com/streamdetails/stream/Electrical-Engineering
Ekeeda Provides Online Electrical and Electronics Engineering Degree Subjects Courses, Video Lectures for All Engineering Universities. Video Tutorials Covers Subjects of Mechanical Engineering Degree.
Alternator,Uses of Alternator ,Working principle ,Basic structure
,Types of Rotor ,Pitch Factor,Distribution Factor,Speed of alternator
,Unity Power Factor ,Zero Power Factor Lagging,Zero Power Factor Leading ,Alternator on Load
Ekeeda Provides Online Electronics Engineering Degree Subjects Courses, Video Lectures for All Engineering Universities. Video Tutorials Covers Subjects of Mechanical Engineering Degree. Visit us: https://ekeeda.com/streamdetails/stream/Electronics-Engineering
I have prepared it to create an understanding of delay modeling in VLSI.
Regards,
Vishal Sharma
Doctoral Research Scholar,
IIT Indore
vishalfzd@gmail.com
Concept of general terms pertaining to rotating machinesvishalgohel12195
Concept of general terms pertaining to rotating machines
Physical concept of force and torque production.
Concept of general terms pertaining to rotating machines.
Generated emf in full pitched and short pitched winding.
Transformers (Especially For 12th Std)Atit Gaonkar
It Is The One Which Will Help A Student To Recall or Study about Transformer.
The Principle, Constructions, Working, Ideal Transformer, Leakages, Efficiency, Cores, Related Solved Problems. etc. are readily available in this power-point.
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus https://ekeeda.com/streamdetails/stream/Electrical-Engineering
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus Visit : https://ekeeda.com/streamdetails/stream/Electrical-Engineering
Ekeeda Provides Online Electrical and Electronics Engineering Degree Subjects Courses, Video Lectures for All Engineering Universities. Video Tutorials Covers Subjects of Mechanical Engineering Degree.
Alternator,Uses of Alternator ,Working principle ,Basic structure
,Types of Rotor ,Pitch Factor,Distribution Factor,Speed of alternator
,Unity Power Factor ,Zero Power Factor Lagging,Zero Power Factor Leading ,Alternator on Load
Ekeeda Provides Online Electronics Engineering Degree Subjects Courses, Video Lectures for All Engineering Universities. Video Tutorials Covers Subjects of Mechanical Engineering Degree. Visit us: https://ekeeda.com/streamdetails/stream/Electronics-Engineering
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
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The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
10. Core type Shell type
1. Easy in design and construction
2.Has low mechanical strength due to
non – bracing of windings
3. Reduction of leakage reactance is
not easily possible
4. The assembly can be easily
dismantled for repair work.
5. Better heat dissipation from
windings.
6. Has longer mean length of core and
shorter mean length of coil turn.
Hence best suited for EHV ( Extra
High Voltage) requirements.
1. Comparatively complex
2. High mechanical strength
3. Reduction of leakage reactance is
highly possible.
4. It cannot be easily dismantled
for repair work.
5. Heat is not easily dissipated from
windings since it is surrounded by
core.
6. it is not suitable for EHV ( Extra
High Voltage) requirements.
11. Distribution transformers
The load on the distribution transformer varies from time to
time and the transformer will be on no-load most of the time.
Hence distribution transformer are designed with less iron loss
and designed to have the maximum efficiency at a load much
lesser than full load.
Also it should have good regulation to maintain the variation of
supply voltage within limits
Power transformers
Used in power stations and substations
During heavy load periods all the transformers are put in
operation and during light load periods some transformers are
disconnected.
Designed to have maximum efficiency at or near full load
12. Output Equation of Single Phase Transformer
“The equation which relates the rate kVA output of transformer to the area of core and
window is called output equation”
13. Output Equation of Single Phase Transformer
The induced emf in a transformer, E =4.44f𝝓m T Volts
Emf per turn Et=4.44f𝝓m (a)
Window space factor, Kw= Conductor area in window = Ac
Total area of window Aw
Conductor area in window, Ac = Kw Aw (1)
The current density δ is same in both the windings.
Current density, δ = Ip = Is
ap as
Area of cross - section of primary conductor, ap = Ip
δ
Area of cross – section of secondary conductor, as = Is
δ
14. If we neglect magnetizing mmf then primary ampere turns is equal to
secondary ampere turns.
Ampere turns, AT = Ip Tp = Is Ts
Total copper area in window Ac = Copper area of + Copper area of
primary winding secondary winding
= Number of primary Number of secondary
turns x area of + turns x area of
cross – section of cross – section of
primary conductor secondary conductor
= Tp ap + Ts as = Tp Ip + Ts Is (since ap = Ip and as = Is )
δ δ δ δ
= 1 (Tp Ip + Ts Is ) = 1 ( AT + AT) (Since AT = Ip Tp = Is Ts )
δ δ
ie, Ac= 2AT (2)
δ
15. Equating (1) and (2)
Kw Aw = 2 AT / δ
Ampere turns, AT = 1 Kw Aw δ (b)
2
The kVA rating of single phase transformer is given by,
kVA rating, Q = Vp Ip x 10-3
≈ Ep Ip x10-3 (since Ep ≈ Vp)
= Ep Tp Ip x 10-3 (Et = Ep and AT = Tp Ip )
Tp Tp
= Et AT x 10-3 (c)
16. On substituting from Et and AT from (a) and (b) in C
Q = 4.44 f𝝓m Kw Aw δ x 10-3
2
= 2.22 f𝝓m Kw Aw δ x 10-3 (since B m = 𝝓m )
Ai
= 2.22 f Bm Ai Kw Aw δ x 10-3
18. The induced emf in a transformer, E =4.44f𝝓m T Volts
Emf per turn Et=4.44f𝝓m (a)
Window space factor, Kw= Conductor area in window = Ac
Total area of window Aw
Conductor area in window, Ac = Kw Aw (1)
The current density δ is same in both the windings.
Current density, δ = Ip = Is
ap as
Area of cross - section of primary conductor, ap = Ip
δ
Area of cross – section of secondary conductor, as = Is
δ
19. If we neglect magnetizing mmf then primary ampere turns is equal to
secondary ampere turns.
Ampere turns, AT = Ip Tp = Is Ts
Total copper area in window Ac = Copper area of + Copper area of
primary winding secondary winding
= 2 X Number of primary 2 X Number of secondary
turns x area of + turns x area of
cross – section of cross – section of
primary conductor secondary conductor
= 2Tp ap + 2Ts as = 2 Tp Ip + 2 Ts Is (since ap = Ip and as = Is )
δ δ δ δ
= 2 (Tp Ip + Ts Is ) = 2 ( AT + AT) (Since AT = Ip Tp = Is Ts )
δ δ
ie, Ac= 4AT (2)
δ
20. Equating (1) and (2)
Kw Aw = 4 AT / δ
Ampere turns, AT = 1 Kw Aw δ (b)
4
The kVA rating of single phase transformer is given by,
kVA rating, Q =3 Vp Ip x 10-3
≈3 Ep Ip x10-3 (since Ep ≈ Vp)
= Ep Tp Ip x 10-3 (Et = Ep and AT = Tp Ip )
Tp Tp
= 3Et AT x 10-3 (c)
21. On substituting from Et and AT from (a) and (b) in C
Q = 3x 4.44 f𝝓m Kw Aw δ x 10-3
4
= 3.33 f𝝓m Kw Aw δ x 10-3 (since B m = 𝝓m )
Ai
= 3.33 f Bm Ai Kw Aw δ x 10-3
22. Emf per turn
The transformer design starts with selection of
an appropriate value of emf per turn. Hence an equation for
emf per turn can be developed by relating output kVA,
magnetic and electric loading. In transformer the ratio of
specific magnetic and electric loading is specified rather
than actual value of specific loadings.
Let, ratio of specific magnetic
and electric loading = r = фm
AT
23. The volt ampere per phase a transformer is given by the product of voltage
and current per phase. Considering the primary voltage and current per
phase we can write,
kVA per phase, Q = Vp Ip x 10-3
= 4.44 fфm Tp Ip x 10-3 (Vp ≈ Ep = 4.44 fфm Tp )
= 4.44 fфm ATp x 10-3 (Tp Ip = AT )
= 4.44 fфm фm x 10-3 ( AT = фm )
r r
фm
2 = ___ Q r _____
4 .44f x 10-3
фm = ___ Q r _____
4 .44f x 10-3
24. Transformer type K
Single phase shell type
Single phase core type
Three phase shell type
Three phase core type,
distribution transformer
Three phase core type, power
transformer
1. to 1.2
0.75 to 0.85
1.3
0.45
0.6 to 0.7