SlideShare a Scribd company logo
1 of 28
Download to read offline
Prepared by:


            Jimit Dhruv
         Elect.Engg,Dept.
Valiya Institute Of Technology-Valiya
Introduction
 Core material:
   Basic material are Alloy Steel having main
    content Silicon & carbon
   Which increases permeability & reduces losses
 HRS:

   HRS not used now a days
   As it has random direction &hard to measure
   Magnetic properties


 CRGOS:

   CRGOS shows excellent Magnetic properties
   So CRGOS is more used
Core construction
 Due to Pulsating flux, core should be
  laminated
 Transformer of larger size may forms in
  cut “C” or cut “E” type.




 Types of Interleaving:
    I.  Simple Interleaving
    II. Meter core Interleaving:

        1)45 ˙
       2) 33 ˙ /55 ˙ overlapping

  In 3-Ø Shell type transformer middle
   winding is reversed
  If not then 73% more core is used
   which leads in increase in over all cost
Transformer winding
Concentric
                                       Sandwich
 Spiral: It is used 100
  A& for low Voltage
  Winding
    Mechanically very
     strong                     Sandwich: mostly used
 Helical :Intermediate          for shell type transformer
  range of current                 Control leakage
    Suitable for LV winding
                                    reactance
     of large transformer          HV & LV are near so
                                    leakage flux is reduced
 Cross-over: suitable of
                                   mmf of each section is
  current not exceeding 20
                                    same.
  A
    Use for HV winding of
     small transformer
 Continuous disc: no of
  turns wound radially over
  one another
    separated by spacers
    HV winding
    Mechanically strong
Insulations
Two main kinds of Insulations:

1. Major Insulation:
    Insulating cylinder between LV & core
    Also between HV & LV
    Insulating barriers between limbs, coils & core
       yoke
    Oil impregnated paper used as it has high
       dielectric strength
2. Minor Insulation:
    Insulation between
   individual turns & between layers
    Conductor Insulation: paper&cotton
    Air insulated Transformer
       insulation used is glass tap
Bushing
 Up to 66kv non-condenser bushing are used is
  porcelain & oil filled

 Above 66kv condenser bushing are used for
  economic reasons.

 Condenser type bushing: It is formed by
  inserting Aluminum foiled layers into a paper
  winding at predetermined radius.

 “Partial capacitance”


 In outdoor substation the
  bushing are covered by a
  porcelain rain shade
Tapping
 Main two location:
  1. Inside Tank
  2. Outside Tank
 Considered as integral part of transformer


Tapping operation

 (1)On load    (2)Off load
tap changer    tap changer


 Tapping is terminated just bellow oil level
 External handle
 Taping is done on HV winding
 Provided in middle (axial & radial force)
Transformer Tank
 Plain sheet steel
  Tank

 Tube Tank


 Corrugated Tank


 Radiator Tank


 Tank with separate
   coolers
Conservator
 What is Conservator ?


 The expansion of oil from Transformer
  tank takes up in Conservator



 When oil contracts, air from
  atmosphere enters in Conservator .

 Risk of contamination of oil in transformer


 Breather valve is mounted to avoide
  moisture

 Breather contain silica in it
Buchholz Relay
 Operation:
 Gas operated relay
 AT the time of fault to maintain the continuity
  of the supply
 Fault detected particularly in incipient stage ,
  major fault can be avoided
 Which is placed between conservator
  and transformer tank
Transformer oil
 Double purpose :
   ie cooling & Insulating


 Permittivity is 2.5


 As per I.A.S breakdown strength of oil
  used must be 50kv RMS

 Major disadvantage is sluging


 To overcome this, synthetic oil is prefered


 One of the e.g is Chlorinated dephenyl is a
  synthetic oil its permittivity is 4.5
WORKSHOP(TPT DEPT.)

WINDING SHOP

  CORE & ACTIVE PART

      FINAL ASSEMBLY

          QUALITY TEST

             FINAL TESTING
WINDING SHOP
 TYPES OF WINDING

   i.   NORMAL WINDING
   ii. INTERLEAVE WINDING
   iii. TERITARY WINDING
                                             ROTARY

              HORIZONTAL      HELICAL
                                               K-
 MACHINES                                 TRANSPOSITION
                                              TYPE
                             CONTINUOUS
                VERTICAL
                                DISC




• End Rings & shielding for prevention purpose
 Conductor Insulation:

    1. Precompressed press board insulation(CRIP
       PAPER)
    2. Craft paper
    3. Also spacers as insulation




 Moisture Control

        Winding Auto Clave: Uses temp. of 110º
         C to 130º C and Vacuum of about 0.4 to
         0.5 mbar.
        Insulating Oven : Uses Heating Only

    Pressure Machine
    Brazing Machine with use of SILPHOS
     ALLOY
    Post Insulation
 PROCEDURE:
CORE & ACTIVE
 PART
 ACTIVE PART
 C.R.G.O. STRIPS
 1-STRIP HAS WIDTH OF 0.27 mm
 COIL OR WINDING ASSEMBLY
 PROCEDURE:
 Manufacturing of LIMB
 Core Insulation
 Removal of TOP FRAM for Coil assembly
 Winding insulation detail
 TOP YOKE FILLING
 VAPOUR PHASE OVEN
 HV & LV leads from top & bottom to the bushings
 REGULATING COILS to the tap changer
FINAL ASSEMBLY
 Installation of active part and assembly of
  accessories
 TRANSFORMER TANK


                      • JOINED AT
      BELL TYPE         BOTTOM
                        SIDE


                      • JOINED AT
   CONVECTIONAL
       TYPE
                        UPPER
                        SIDE
 ACCESSORIES:

  Blanker : Leakage of oil & Radiators
  adjointment

  Buchholz Relay: To trip the transformer


  OSR (oil serge relay): To indicate the level
  and quality of oil

  MOLG(magnate oil gage): It indicates the
  level of oil in the conservator

  Breather Valve: Provide dry air using silica
   gel and have air seal of neoprene
  Cooling Equipment: Generally for cooling
   of oil in a tank
     1.   Radiators
     2.   Thermosyphan
 Method of Cooling:
    i.   ONAN
    ii. ONAF
    iii. OFAF
    iv. For very high temp using HEAT
         EXCHANGER


 CT(Current Transformer):Two
         purposes;
    1.     Winding temp indicator (WTI)
    2.     Oil temp indicator (OTI)
        BUSHINGS: The leads from top and
         bottom of the winding are brought out to a
         length of few cm only and the outdoor
         terminal of the transformer are provided
         by bushings
 PROCEDURE
  Vacuuming of Tank(up to 0.3 mbar) for about
   24hrs to 36hrs

  The Leak Rate Test with the use of water & air


  Oil Test which includes BDV & PPM


  Oil Filling


  After the IMPREGNATION TIME the whole
   accessories are to be attached.
QUALITY TEST
 ANALYSIS WITH “SIGMA CARD”


 Sigma card includes below required data
    Design
    Process Time
    M/C size specification
    Process of manufacturing
    Dimension specification
    Testing specification
    Information about control points
FINAL TESTING

                  ROUTINE TESTS   TYPE TESTS


NO LOAD TETS
                                                        TEMPRETURE
                                                           TEST


 LOAD LOSS


INSULATION                              IMPULSE TEST
   TEST




CAPACITANCE &                                          ZERO SEQUENCE
    TAN δ                                                IMPEDANCE
                                                            TEST


  SEPARATE
   SOURCE                            HARMONIC AND
                                      NOISE LEVEL
                                         TEST


  INDUCED OVER
     VOLTAGE




WINDING TEST




  VOLTAGE RATIO
CT (CURRENT TRANSFORMER)
 Generally CT is use for the below four
  purposes:
    Measurement of Current
    Measurement of Power
    Isolation between High voltage and Low Voltage
    Inputs to Relays & Protection Systems
 PROCEDURE OF CURRENT
  TRANSFORMER:
 CO NDUCTORS USES :ALUMINIUM OR
  COPPER(HIGH CURRENT RATING)

 In the manufacturing of the primary winding or
  protection core there will be the creation of the
  capacitance as below.

    GRADING & SUB GRADING.
    MAIN GRADING HAS WRAPPED
     ALUMINIUM FOIL & CRIP PAPER
    AT 300MM DISTANCE PERFORATED ALU.
     FOIL (400MM) AND CRIP PAPER.
    SIMULTANEOUSLY INSULATION MAKE
     CAPACITANCE
 Quartz in CT

 Reduces the quantity of oil
 Provides mechanical strength for the
    conductors
   Improves the quality of oil by absorbing
    moisture
   Being a bad conductor of heat, it allows slow
    heating /cooling of the CT.
    Finally expansion tank is attached and after
    that evacuation of oil and gas filling will be
    there .
   There is also one imp term is D3 point which
    is also called the earth point.
Thank You

More Related Content

What's hot

Transformer repairing & manufacturing.pptx
Transformer repairing & manufacturing.pptxTransformer repairing & manufacturing.pptx
Transformer repairing & manufacturing.pptxVishalSen33
 
Three phase transformer ( vector groups)
Three phase  transformer ( vector groups)Three phase  transformer ( vector groups)
Three phase transformer ( vector groups)Dr.Raja Masood Larik
 
Transformer testing
Transformer testingTransformer testing
Transformer testingajayknows
 
Power Transformer ( Summer Training presentation BHEL )
Power Transformer ( Summer Training presentation BHEL )Power Transformer ( Summer Training presentation BHEL )
Power Transformer ( Summer Training presentation BHEL )Dheeraj Upadhyay
 
Testing of Transformers.
Testing of Transformers.Testing of Transformers.
Testing of Transformers.Geetesh Verma
 
Transformer Parts and functions
Transformer Parts and functionsTransformer Parts and functions
Transformer Parts and functionsSourabh sharma
 
Distribution Transformer Manufacturing at Navana Electronics ltd (Aliv)
Distribution Transformer Manufacturing at Navana Electronics ltd (Aliv)Distribution Transformer Manufacturing at Navana Electronics ltd (Aliv)
Distribution Transformer Manufacturing at Navana Electronics ltd (Aliv)Md Abu Jauad Khan Aliv
 
Presentation on Power Transformer
Presentation on Power TransformerPresentation on Power Transformer
Presentation on Power TransformerAjay Maurya
 
power transformer and its usage
power transformer and its usage power transformer and its usage
power transformer and its usage gourav1245
 
Transformer maintenance
Transformer maintenance Transformer maintenance
Transformer maintenance Molla Morshad
 
Instrument transformer CT & PT
Instrument transformer CT & PTInstrument transformer CT & PT
Instrument transformer CT & PTChandan Singh
 
Different methods of pwm for inverter control
Different methods of pwm for inverter controlDifferent methods of pwm for inverter control
Different methods of pwm for inverter controlTushar Pandagre
 
Power Transformer Protection
Power Transformer ProtectionPower Transformer Protection
Power Transformer ProtectionAng Sovann
 
Understanding transformer vector group
Understanding transformer vector groupUnderstanding transformer vector group
Understanding transformer vector groupShyamkant Vasekar
 
Electrical Power substation
Electrical Power substationElectrical Power substation
Electrical Power substationEmran Ali
 

What's hot (20)

Transformer repairing & manufacturing.pptx
Transformer repairing & manufacturing.pptxTransformer repairing & manufacturing.pptx
Transformer repairing & manufacturing.pptx
 
Three phase transformer ( vector groups)
Three phase  transformer ( vector groups)Three phase  transformer ( vector groups)
Three phase transformer ( vector groups)
 
Transformer testing
Transformer testingTransformer testing
Transformer testing
 
Power Transformer ( Summer Training presentation BHEL )
Power Transformer ( Summer Training presentation BHEL )Power Transformer ( Summer Training presentation BHEL )
Power Transformer ( Summer Training presentation BHEL )
 
Transformer 2
Transformer 2Transformer 2
Transformer 2
 
Full transformer
Full transformerFull transformer
Full transformer
 
Testing of Transformers.
Testing of Transformers.Testing of Transformers.
Testing of Transformers.
 
Transformer Parts and functions
Transformer Parts and functionsTransformer Parts and functions
Transformer Parts and functions
 
Transformer basic
Transformer basicTransformer basic
Transformer basic
 
Distribution Transformer Manufacturing at Navana Electronics ltd (Aliv)
Distribution Transformer Manufacturing at Navana Electronics ltd (Aliv)Distribution Transformer Manufacturing at Navana Electronics ltd (Aliv)
Distribution Transformer Manufacturing at Navana Electronics ltd (Aliv)
 
Presentation on Power Transformer
Presentation on Power TransformerPresentation on Power Transformer
Presentation on Power Transformer
 
power transformer and its usage
power transformer and its usage power transformer and its usage
power transformer and its usage
 
Transformer maintenance
Transformer maintenance Transformer maintenance
Transformer maintenance
 
Instrument transformer CT & PT
Instrument transformer CT & PTInstrument transformer CT & PT
Instrument transformer CT & PT
 
Transformer protection
Transformer protectionTransformer protection
Transformer protection
 
Different methods of pwm for inverter control
Different methods of pwm for inverter controlDifferent methods of pwm for inverter control
Different methods of pwm for inverter control
 
Power Transformer Protection
Power Transformer ProtectionPower Transformer Protection
Power Transformer Protection
 
Understanding transformer vector group
Understanding transformer vector groupUnderstanding transformer vector group
Understanding transformer vector group
 
Electrical Power substation
Electrical Power substationElectrical Power substation
Electrical Power substation
 
Motor.ppt
Motor.pptMotor.ppt
Motor.ppt
 

Similar to PRESENTATION ON MANUFACTURING OF TRANSFORMER By Dhruv Jimit

Operation and maintenance of transformer
Operation and maintenance of transformerOperation and maintenance of transformer
Operation and maintenance of transformerKapil Singh
 
Presentation_Power_Transformers-1
Presentation_Power_Transformers-1Presentation_Power_Transformers-1
Presentation_Power_Transformers-1Nageswar Rao
 
transformer Sales, after sales & service presentation
transformer Sales, after sales & service presentationtransformer Sales, after sales & service presentation
transformer Sales, after sales & service presentationFawaz Baik
 
Pre commissioning steam turbines load trial
Pre commissioning steam turbines load trialPre commissioning steam turbines load trial
Pre commissioning steam turbines load trialNagesh H
 
Transformer Protection
Transformer Protection Transformer Protection
Transformer Protection AniketAwate2
 
Industrial training ppt bhel bhopal
Industrial training ppt bhel bhopalIndustrial training ppt bhel bhopal
Industrial training ppt bhel bhopalPRAVEENKUMARSINGH87
 
Transformer Accessories for Testing and Protection
Transformer Accessories for Testing and ProtectionTransformer Accessories for Testing and Protection
Transformer Accessories for Testing and ProtectionSAGAR D
 
Sc50 cummins generator sets diesel gensets
Sc50 cummins generator sets diesel gensetsSc50 cummins generator sets diesel gensets
Sc50 cummins generator sets diesel gensetsSUNSHINE MACHINERY
 
Generator cooling and sealing system 2
Generator cooling and sealing system 2Generator cooling and sealing system 2
Generator cooling and sealing system 2Mohammad Basid
 
Sp30 perkins 30kva Groupe électrogène standby single phase data sheet
Sp30 perkins 30kva Groupe électrogène standby single phase data sheetSp30 perkins 30kva Groupe électrogène standby single phase data sheet
Sp30 perkins 30kva Groupe électrogène standby single phase data sheetSUNSHINE MACHINERY
 
Sc50 cummins Groupe électrogène, Plantas Eléctricas
Sc50 cummins Groupe électrogène, Plantas EléctricasSc50 cummins Groupe électrogène, Plantas Eléctricas
Sc50 cummins Groupe électrogène, Plantas EléctricasSUNSHINE MACHINERY
 
Sc30 cummins Groupe électrogène
Sc30 cummins Groupe électrogèneSc30 cummins Groupe électrogène
Sc30 cummins Groupe électrogèneSUNSHINE MACHINERY
 
Sc150 cummins generation Groupe électrogène, Plantas Eléctricas,
Sc150 cummins generation Groupe électrogène, Plantas Eléctricas,Sc150 cummins generation Groupe électrogène, Plantas Eléctricas,
Sc150 cummins generation Groupe électrogène, Plantas Eléctricas,SUNSHINE MACHINERY
 

Similar to PRESENTATION ON MANUFACTURING OF TRANSFORMER By Dhruv Jimit (20)

transformers.ppt
transformers.ppttransformers.ppt
transformers.ppt
 
Operation and maintenance of transformer
Operation and maintenance of transformerOperation and maintenance of transformer
Operation and maintenance of transformer
 
Presentation_Power_Transformers-1
Presentation_Power_Transformers-1Presentation_Power_Transformers-1
Presentation_Power_Transformers-1
 
transformer Sales, after sales & service presentation
transformer Sales, after sales & service presentationtransformer Sales, after sales & service presentation
transformer Sales, after sales & service presentation
 
Pre commissioning steam turbines load trial
Pre commissioning steam turbines load trialPre commissioning steam turbines load trial
Pre commissioning steam turbines load trial
 
Transformer Protection
Transformer Protection Transformer Protection
Transformer Protection
 
Industrial training ppt bhel bhopal
Industrial training ppt bhel bhopalIndustrial training ppt bhel bhopal
Industrial training ppt bhel bhopal
 
Transformer Accessories for Testing and Protection
Transformer Accessories for Testing and ProtectionTransformer Accessories for Testing and Protection
Transformer Accessories for Testing and Protection
 
Sc30 cummins gensets
Sc30 cummins gensetsSc30 cummins gensets
Sc30 cummins gensets
 
Sp33 data sheet
Sp33 data sheetSp33 data sheet
Sp33 data sheet
 
Sc50 cummins generator sets diesel gensets
Sc50 cummins generator sets diesel gensetsSc50 cummins generator sets diesel gensets
Sc50 cummins generator sets diesel gensets
 
Generator cooling and sealing system 2
Generator cooling and sealing system 2Generator cooling and sealing system 2
Generator cooling and sealing system 2
 
Sp184 3 phase data sheet
Sp184 3 phase data sheetSp184 3 phase data sheet
Sp184 3 phase data sheet
 
Sp30 perkins 30kva Groupe électrogène standby single phase data sheet
Sp30 perkins 30kva Groupe électrogène standby single phase data sheetSp30 perkins 30kva Groupe électrogène standby single phase data sheet
Sp30 perkins 30kva Groupe électrogène standby single phase data sheet
 
Sc44 cummins gensets generator
Sc44 cummins gensets generatorSc44 cummins gensets generator
Sc44 cummins gensets generator
 
Sc50 cummins Groupe électrogène, Plantas Eléctricas
Sc50 cummins Groupe électrogène, Plantas EléctricasSc50 cummins Groupe électrogène, Plantas Eléctricas
Sc50 cummins Groupe électrogène, Plantas Eléctricas
 
Sc30 cummins
Sc30 cumminsSc30 cummins
Sc30 cummins
 
Sc30 cummins Groupe électrogène
Sc30 cummins Groupe électrogèneSc30 cummins Groupe électrogène
Sc30 cummins Groupe électrogène
 
Sc150 cummins
Sc150 cumminsSc150 cummins
Sc150 cummins
 
Sc150 cummins generation Groupe électrogène, Plantas Eléctricas,
Sc150 cummins generation Groupe électrogène, Plantas Eléctricas,Sc150 cummins generation Groupe électrogène, Plantas Eléctricas,
Sc150 cummins generation Groupe électrogène, Plantas Eléctricas,
 

Recently uploaded

How the Insurance Industry is Scaling with AI
How the Insurance Industry is  Scaling with AIHow the Insurance Industry is  Scaling with AI
How the Insurance Industry is Scaling with AIPeter Ward
 
EUDR Info Meeting Ethiopian coffee exporters
EUDR Info Meeting Ethiopian coffee exportersEUDR Info Meeting Ethiopian coffee exporters
EUDR Info Meeting Ethiopian coffee exportersPeter Horsten
 
Who is the Darshan Hiranandani Wife ????
Who is the Darshan Hiranandani Wife ????Who is the Darshan Hiranandani Wife ????
Who is the Darshan Hiranandani Wife ????surajkumarsk121223
 
Introducing the Analogic framework for business planning applications
Introducing the Analogic framework for business planning applicationsIntroducing the Analogic framework for business planning applications
Introducing the Analogic framework for business planning applicationsKnowledgeSeed
 
How to Conduct a Service Gap Analysis for Your Business
How to Conduct a Service Gap Analysis for Your BusinessHow to Conduct a Service Gap Analysis for Your Business
How to Conduct a Service Gap Analysis for Your BusinessHelp Desk Migration
 
decentralized Launchpad providing a safe and transparent fundraising
decentralized Launchpad providing a safe and transparent fundraisingdecentralized Launchpad providing a safe and transparent fundraising
decentralized Launchpad providing a safe and transparent fundraisingrectinajh
 
How To Simplify Your Scheduling with AI Calendarfly The Hassle-Free Online Bo...
How To Simplify Your Scheduling with AI Calendarfly The Hassle-Free Online Bo...How To Simplify Your Scheduling with AI Calendarfly The Hassle-Free Online Bo...
How To Simplify Your Scheduling with AI Calendarfly The Hassle-Free Online Bo...SOFTTECHHUB
 
Jewish Resources in the Family Resource Centre
Jewish Resources in the Family Resource CentreJewish Resources in the Family Resource Centre
Jewish Resources in the Family Resource CentreNZSG
 
Data Analytics Strategy Toolkit and Templates
Data Analytics Strategy Toolkit and TemplatesData Analytics Strategy Toolkit and Templates
Data Analytics Strategy Toolkit and TemplatesAurelien Domont, MBA
 
Unveiling the Soundscape Music for Psychedelic Experiences
Unveiling the Soundscape Music for Psychedelic ExperiencesUnveiling the Soundscape Music for Psychedelic Experiences
Unveiling the Soundscape Music for Psychedelic ExperiencesDoe Paoro
 
Roman Kyslyi: Використання та побудова LLM агентів (UA)
Roman Kyslyi: Використання та побудова LLM агентів (UA)Roman Kyslyi: Використання та побудова LLM агентів (UA)
Roman Kyslyi: Використання та побудова LLM агентів (UA)Lviv Startup Club
 
EQX-PPT-20240405-CorporateDeck-slideshare
EQX-PPT-20240405-CorporateDeck-slideshareEQX-PPT-20240405-CorporateDeck-slideshare
EQX-PPT-20240405-CorporateDeck-slideshareEquinox Gold Corp.
 
WSMM Media and Entertainment Feb_March_Final.pdf
WSMM Media and Entertainment Feb_March_Final.pdfWSMM Media and Entertainment Feb_March_Final.pdf
WSMM Media and Entertainment Feb_March_Final.pdfJamesConcepcion7
 
Kyryl Truskovskyi: Training and Serving Open-Sourced Foundational Models (UA)
Kyryl Truskovskyi: Training and Serving Open-Sourced Foundational Models (UA)Kyryl Truskovskyi: Training and Serving Open-Sourced Foundational Models (UA)
Kyryl Truskovskyi: Training and Serving Open-Sourced Foundational Models (UA)Lviv Startup Club
 
Saffron and Dates opportunities from Iran .pdf
Saffron and Dates opportunities from Iran .pdfSaffron and Dates opportunities from Iran .pdf
Saffron and Dates opportunities from Iran .pdfRezaSeif2
 
Neha Jhalani Hiranandani: A Guide to Her Life and Career
Neha Jhalani Hiranandani: A Guide to Her Life and CareerNeha Jhalani Hiranandani: A Guide to Her Life and Career
Neha Jhalani Hiranandani: A Guide to Her Life and Careerr98588472
 
1911 Gold Corporate Presentation Apr 2024.pdf
1911 Gold Corporate Presentation Apr 2024.pdf1911 Gold Corporate Presentation Apr 2024.pdf
1911 Gold Corporate Presentation Apr 2024.pdfShaun Heinrichs
 
Technical Leaders - Working with the Management Team
Technical Leaders - Working with the Management TeamTechnical Leaders - Working with the Management Team
Technical Leaders - Working with the Management TeamArik Fletcher
 
Andrii Rodionov: What can go wrong in a distributed system – experience from ...
Andrii Rodionov: What can go wrong in a distributed system – experience from ...Andrii Rodionov: What can go wrong in a distributed system – experience from ...
Andrii Rodionov: What can go wrong in a distributed system – experience from ...Lviv Startup Club
 
Darshan Hiranandani (Son of Niranjan Hiranandani).pdf
Darshan Hiranandani (Son of Niranjan Hiranandani).pdfDarshan Hiranandani (Son of Niranjan Hiranandani).pdf
Darshan Hiranandani (Son of Niranjan Hiranandani).pdfShashank Mehta
 

Recently uploaded (20)

How the Insurance Industry is Scaling with AI
How the Insurance Industry is  Scaling with AIHow the Insurance Industry is  Scaling with AI
How the Insurance Industry is Scaling with AI
 
EUDR Info Meeting Ethiopian coffee exporters
EUDR Info Meeting Ethiopian coffee exportersEUDR Info Meeting Ethiopian coffee exporters
EUDR Info Meeting Ethiopian coffee exporters
 
Who is the Darshan Hiranandani Wife ????
Who is the Darshan Hiranandani Wife ????Who is the Darshan Hiranandani Wife ????
Who is the Darshan Hiranandani Wife ????
 
Introducing the Analogic framework for business planning applications
Introducing the Analogic framework for business planning applicationsIntroducing the Analogic framework for business planning applications
Introducing the Analogic framework for business planning applications
 
How to Conduct a Service Gap Analysis for Your Business
How to Conduct a Service Gap Analysis for Your BusinessHow to Conduct a Service Gap Analysis for Your Business
How to Conduct a Service Gap Analysis for Your Business
 
decentralized Launchpad providing a safe and transparent fundraising
decentralized Launchpad providing a safe and transparent fundraisingdecentralized Launchpad providing a safe and transparent fundraising
decentralized Launchpad providing a safe and transparent fundraising
 
How To Simplify Your Scheduling with AI Calendarfly The Hassle-Free Online Bo...
How To Simplify Your Scheduling with AI Calendarfly The Hassle-Free Online Bo...How To Simplify Your Scheduling with AI Calendarfly The Hassle-Free Online Bo...
How To Simplify Your Scheduling with AI Calendarfly The Hassle-Free Online Bo...
 
Jewish Resources in the Family Resource Centre
Jewish Resources in the Family Resource CentreJewish Resources in the Family Resource Centre
Jewish Resources in the Family Resource Centre
 
Data Analytics Strategy Toolkit and Templates
Data Analytics Strategy Toolkit and TemplatesData Analytics Strategy Toolkit and Templates
Data Analytics Strategy Toolkit and Templates
 
Unveiling the Soundscape Music for Psychedelic Experiences
Unveiling the Soundscape Music for Psychedelic ExperiencesUnveiling the Soundscape Music for Psychedelic Experiences
Unveiling the Soundscape Music for Psychedelic Experiences
 
Roman Kyslyi: Використання та побудова LLM агентів (UA)
Roman Kyslyi: Використання та побудова LLM агентів (UA)Roman Kyslyi: Використання та побудова LLM агентів (UA)
Roman Kyslyi: Використання та побудова LLM агентів (UA)
 
EQX-PPT-20240405-CorporateDeck-slideshare
EQX-PPT-20240405-CorporateDeck-slideshareEQX-PPT-20240405-CorporateDeck-slideshare
EQX-PPT-20240405-CorporateDeck-slideshare
 
WSMM Media and Entertainment Feb_March_Final.pdf
WSMM Media and Entertainment Feb_March_Final.pdfWSMM Media and Entertainment Feb_March_Final.pdf
WSMM Media and Entertainment Feb_March_Final.pdf
 
Kyryl Truskovskyi: Training and Serving Open-Sourced Foundational Models (UA)
Kyryl Truskovskyi: Training and Serving Open-Sourced Foundational Models (UA)Kyryl Truskovskyi: Training and Serving Open-Sourced Foundational Models (UA)
Kyryl Truskovskyi: Training and Serving Open-Sourced Foundational Models (UA)
 
Saffron and Dates opportunities from Iran .pdf
Saffron and Dates opportunities from Iran .pdfSaffron and Dates opportunities from Iran .pdf
Saffron and Dates opportunities from Iran .pdf
 
Neha Jhalani Hiranandani: A Guide to Her Life and Career
Neha Jhalani Hiranandani: A Guide to Her Life and CareerNeha Jhalani Hiranandani: A Guide to Her Life and Career
Neha Jhalani Hiranandani: A Guide to Her Life and Career
 
1911 Gold Corporate Presentation Apr 2024.pdf
1911 Gold Corporate Presentation Apr 2024.pdf1911 Gold Corporate Presentation Apr 2024.pdf
1911 Gold Corporate Presentation Apr 2024.pdf
 
Technical Leaders - Working with the Management Team
Technical Leaders - Working with the Management TeamTechnical Leaders - Working with the Management Team
Technical Leaders - Working with the Management Team
 
Andrii Rodionov: What can go wrong in a distributed system – experience from ...
Andrii Rodionov: What can go wrong in a distributed system – experience from ...Andrii Rodionov: What can go wrong in a distributed system – experience from ...
Andrii Rodionov: What can go wrong in a distributed system – experience from ...
 
Darshan Hiranandani (Son of Niranjan Hiranandani).pdf
Darshan Hiranandani (Son of Niranjan Hiranandani).pdfDarshan Hiranandani (Son of Niranjan Hiranandani).pdf
Darshan Hiranandani (Son of Niranjan Hiranandani).pdf
 

PRESENTATION ON MANUFACTURING OF TRANSFORMER By Dhruv Jimit

  • 1. Prepared by: Jimit Dhruv Elect.Engg,Dept. Valiya Institute Of Technology-Valiya
  • 2. Introduction  Core material:  Basic material are Alloy Steel having main content Silicon & carbon  Which increases permeability & reduces losses
  • 3.  HRS:  HRS not used now a days  As it has random direction &hard to measure Magnetic properties  CRGOS:  CRGOS shows excellent Magnetic properties  So CRGOS is more used
  • 4. Core construction  Due to Pulsating flux, core should be laminated  Transformer of larger size may forms in cut “C” or cut “E” type.  Types of Interleaving: I. Simple Interleaving II. Meter core Interleaving: 1)45 ˙ 2) 33 ˙ /55 ˙ overlapping  In 3-Ø Shell type transformer middle winding is reversed  If not then 73% more core is used which leads in increase in over all cost
  • 6. Concentric Sandwich  Spiral: It is used 100 A& for low Voltage Winding  Mechanically very strong  Sandwich: mostly used  Helical :Intermediate for shell type transformer range of current  Control leakage  Suitable for LV winding reactance of large transformer  HV & LV are near so leakage flux is reduced  Cross-over: suitable of  mmf of each section is current not exceeding 20 same. A  Use for HV winding of small transformer  Continuous disc: no of turns wound radially over one another  separated by spacers  HV winding  Mechanically strong
  • 7. Insulations Two main kinds of Insulations: 1. Major Insulation:  Insulating cylinder between LV & core  Also between HV & LV  Insulating barriers between limbs, coils & core yoke  Oil impregnated paper used as it has high dielectric strength 2. Minor Insulation:  Insulation between individual turns & between layers  Conductor Insulation: paper&cotton  Air insulated Transformer insulation used is glass tap
  • 8. Bushing  Up to 66kv non-condenser bushing are used is porcelain & oil filled  Above 66kv condenser bushing are used for economic reasons.  Condenser type bushing: It is formed by inserting Aluminum foiled layers into a paper winding at predetermined radius.  “Partial capacitance”  In outdoor substation the bushing are covered by a porcelain rain shade
  • 9. Tapping  Main two location: 1. Inside Tank 2. Outside Tank  Considered as integral part of transformer Tapping operation (1)On load (2)Off load tap changer tap changer  Tapping is terminated just bellow oil level  External handle  Taping is done on HV winding  Provided in middle (axial & radial force)
  • 10. Transformer Tank  Plain sheet steel Tank  Tube Tank  Corrugated Tank  Radiator Tank  Tank with separate coolers
  • 11. Conservator  What is Conservator ?  The expansion of oil from Transformer tank takes up in Conservator  When oil contracts, air from atmosphere enters in Conservator .  Risk of contamination of oil in transformer  Breather valve is mounted to avoide moisture  Breather contain silica in it
  • 12. Buchholz Relay  Operation:  Gas operated relay  AT the time of fault to maintain the continuity of the supply  Fault detected particularly in incipient stage , major fault can be avoided  Which is placed between conservator and transformer tank
  • 13. Transformer oil  Double purpose :  ie cooling & Insulating  Permittivity is 2.5  As per I.A.S breakdown strength of oil used must be 50kv RMS  Major disadvantage is sluging  To overcome this, synthetic oil is prefered  One of the e.g is Chlorinated dephenyl is a synthetic oil its permittivity is 4.5
  • 14. WORKSHOP(TPT DEPT.) WINDING SHOP CORE & ACTIVE PART FINAL ASSEMBLY QUALITY TEST FINAL TESTING
  • 15. WINDING SHOP  TYPES OF WINDING i. NORMAL WINDING ii. INTERLEAVE WINDING iii. TERITARY WINDING ROTARY HORIZONTAL HELICAL K- MACHINES TRANSPOSITION TYPE CONTINUOUS VERTICAL DISC • End Rings & shielding for prevention purpose
  • 16.  Conductor Insulation: 1. Precompressed press board insulation(CRIP PAPER) 2. Craft paper 3. Also spacers as insulation  Moisture Control  Winding Auto Clave: Uses temp. of 110º C to 130º C and Vacuum of about 0.4 to 0.5 mbar.  Insulating Oven : Uses Heating Only  Pressure Machine  Brazing Machine with use of SILPHOS ALLOY  Post Insulation
  • 18. CORE & ACTIVE PART  ACTIVE PART  C.R.G.O. STRIPS  1-STRIP HAS WIDTH OF 0.27 mm  COIL OR WINDING ASSEMBLY  PROCEDURE:  Manufacturing of LIMB  Core Insulation  Removal of TOP FRAM for Coil assembly  Winding insulation detail  TOP YOKE FILLING  VAPOUR PHASE OVEN  HV & LV leads from top & bottom to the bushings  REGULATING COILS to the tap changer
  • 19. FINAL ASSEMBLY  Installation of active part and assembly of accessories  TRANSFORMER TANK • JOINED AT BELL TYPE BOTTOM SIDE • JOINED AT CONVECTIONAL TYPE UPPER SIDE
  • 20.  ACCESSORIES:  Blanker : Leakage of oil & Radiators adjointment  Buchholz Relay: To trip the transformer  OSR (oil serge relay): To indicate the level and quality of oil  MOLG(magnate oil gage): It indicates the level of oil in the conservator  Breather Valve: Provide dry air using silica gel and have air seal of neoprene  Cooling Equipment: Generally for cooling of oil in a tank 1. Radiators 2. Thermosyphan
  • 21.  Method of Cooling: i. ONAN ii. ONAF iii. OFAF iv. For very high temp using HEAT EXCHANGER  CT(Current Transformer):Two purposes; 1. Winding temp indicator (WTI) 2. Oil temp indicator (OTI)  BUSHINGS: The leads from top and bottom of the winding are brought out to a length of few cm only and the outdoor terminal of the transformer are provided by bushings
  • 22.  PROCEDURE  Vacuuming of Tank(up to 0.3 mbar) for about 24hrs to 36hrs  The Leak Rate Test with the use of water & air  Oil Test which includes BDV & PPM  Oil Filling  After the IMPREGNATION TIME the whole accessories are to be attached.
  • 23. QUALITY TEST  ANALYSIS WITH “SIGMA CARD”  Sigma card includes below required data  Design  Process Time  M/C size specification  Process of manufacturing  Dimension specification  Testing specification  Information about control points
  • 24. FINAL TESTING ROUTINE TESTS TYPE TESTS NO LOAD TETS TEMPRETURE TEST LOAD LOSS INSULATION IMPULSE TEST TEST CAPACITANCE & ZERO SEQUENCE TAN δ IMPEDANCE TEST SEPARATE SOURCE HARMONIC AND NOISE LEVEL TEST INDUCED OVER VOLTAGE WINDING TEST VOLTAGE RATIO
  • 25. CT (CURRENT TRANSFORMER)  Generally CT is use for the below four purposes:  Measurement of Current  Measurement of Power  Isolation between High voltage and Low Voltage  Inputs to Relays & Protection Systems  PROCEDURE OF CURRENT TRANSFORMER:  CO NDUCTORS USES :ALUMINIUM OR COPPER(HIGH CURRENT RATING)  In the manufacturing of the primary winding or protection core there will be the creation of the capacitance as below.  GRADING & SUB GRADING.  MAIN GRADING HAS WRAPPED ALUMINIUM FOIL & CRIP PAPER  AT 300MM DISTANCE PERFORATED ALU. FOIL (400MM) AND CRIP PAPER.  SIMULTANEOUSLY INSULATION MAKE CAPACITANCE
  • 26.
  • 27.  Quartz in CT  Reduces the quantity of oil  Provides mechanical strength for the conductors  Improves the quality of oil by absorbing moisture  Being a bad conductor of heat, it allows slow heating /cooling of the CT.  Finally expansion tank is attached and after that evacuation of oil and gas filling will be there .  There is also one imp term is D3 point which is also called the earth point.