Design HT/LT Power & Distribution Transformers Learn & Design HT/LT Transformers Online Design Oil Type & Dry Type Transformers Enter The Basic Inputs And Wait For 60 seconds Get Detailed HT/LT Winding Data Sheets Core Details With Chart Tank & Oil Details GTP * Estimation Turn Ratio Error * Efficiency Refine Your Design - If Required Un Limited Access With Many More Features       VeriSign-USA partnered & secured Payment Gateway with SSL technology

Free Online HT/LT Transformer Design/CT Design/Auxilliary Transformer Design

Now use our free online transformer design data calculator and get the design parameters instantly. You can design any type of transformer now - be it HT transformer, LT transformer, dry type transformer, oil type transformer, step down transformer, step up transformer, furnance transformer, isolation transformer, control transformer, auxilliary transformer, current transformer, CT, servo transformer design, copper (Cu) winding transformer, aluminium (Al) winding transformer, high voltage transformer, special purpose transformer welding transformer. You get winding data, estimation, temperature rise in transfprmer windings, oil temperature rise, axial forces, radial forces, tank design data, oil quantity calculation, GTP, winding data sheets. So you get every thing online instantly.

About Transforme Design Software - Output Data
After you enter the inputs details to the data input interface and finally you get the output
parameters, below is the list of main heads under which you get the detailed output parameters to manufacture either a distribution or a power transformer -

Core Loss Curve : Object browser window contains information of components which are used to design & make an electrical control panel. The user can select component type whether - switchgear or accessory. Then the switchgear is further classified into various types such as ACB, MCB, MCCB, SFU, COS etc., etc., Further the accessory is classified into meters, indicatores, fuses, selector switchws etc., etc., . Finally, you can select the make (library) of the component you want to use to manufacture your panel. You can view proper ties of components from the object browser. Before using the components it shows you the specifications of the component when you selec a particular component so that before adding to the panel templet you can know the component specifications to save your time from deletion & again adding.

1.	Transformer Core Details - Limb Diameter, Core Length, Core Weight, No. of Stacks, Size of Stacks, Weight of Stacks, Thickness of Laminations, Axial Distance between Limbs, Window Height, Graphical view of cross-section of core laminations and more.
2.	LT Winding Data - No. of Turns per leg, Cross-Section Area of Conductor, Shape and Size of Conductor - Round or Flat, Weight of total LT Conductor, Diameter of Coil, Height of Coil, Gap between LT to HTand LT to Core, Layers per Leg, Size of Insulation, Top and Bottom Gaps, Graphical view of coil and many more.
3.	HT Winding Data - No. of Turns per leg, Total no. of Coils / Discs per leg, No. of Turns per Coil, Diameter of Coil, Height of Coil, Conductor Size, Conductor Shape - Round or Flat, Thickness of Coil, Tapping positions, Conductor weight per leg, Insulation Type, Thickness of Insulation, Graphical view of Coil and many more.
4.	Main Tank / Barrel - Height of Tank, Width of tank, Breadth of tank, Sheet Thickness, Volume of Tank, Total Sheet required, Conservator Size, No. of Fins, Size of Fins, Total Area of Fins, Heat Radiating Area of Tank, Position of Bushings, Position of tap Changer, Graphical view of tank and many more.
5.	Insulating Oil - Quantity of Oil, Weight of Oil, BDV of Oil, Other related values of Oil required, Cooling Methods,
6.	Weight Of Transformer - Weight of Total Core, Weight of Conductor, Weight of Oil, Weight of other Hardwares and Accessories,
7.	General Accessories - A complete list of additional hardwares and accessories required to build a transformer like , insulators, bushings, bucholtz relay, tap changer, breather, elbow relief glass, temperature gauge, Rubberised Gaskets, Nut, Bolts and Washers, Drain and Inlet Valves, Cooling Fans, Core Clamps, Tie Rods,
8.	Formulae - Complete set of Formulae used to derive all calculations, Value of Constants,
9.	SpreadSheet - All output data is also available in word format to be used for further processing of data like electronic transmission, printing data sheets for distribution to various departments for study and approvals.
10.	Transformer Losses - No Load Losses, Load Losses.
11.	Estimation & Costing - You get complete cost of transformer manufacturing. Now our software is AutoCAD compatible. You can export tank drawings into *.DXF formate. So modify your drawings in AutoCAD now.

Core Lamination Chart: Before starting a panel design you need some basic information to be entered so that the software can use it to do the various calculations. Apart from entering the project & client details you need to give approximate dimensions of the panel you are going to design. No matter if your values are not correct. You just need to enter your assumed values. Then it requires the bus bar position, base frame details, sheet gauge (SWG), mounting plate gauge etc;,. Then it requires the main frame structure sheet gauge, position of cable alleys. All this basic information is required to make detailed output data sheets.

How does transformer design software work?
1 - Just enter the KVA rating, Impedance, NLL (No Load Losses), LS (Load Losses), select the flux density and press the "Auto mode". Within seconds you get various design outputs just showing you the core and copper weights depending upon the entered impedance value. Select any set of values as per your preferred tolerance and you get the complete design data of the distribution or power transformer (clearances and certain other values are added as default values but you can change as per your requirements),

2 - Still you have the "Manual" mode to change and fine tune your design as per your requirement (if desired),

3 - Change no. of HV coils/discs per limb, size of HV/LV conductor(s) - both round conductor and strip size, no. of parallel LV conductors,

4 - You can reset various clearances, change current density, conductor insulation as per your requirement and client specifications,

5 - Select HV winding type - Cross Over to Disc winding and vice -a - versa,

Core Yoke Design Options : Depending upon the application, a panel can be a power control centre (PCC), motor control centre (MCC), distribution board (DB) or metering boards (MDB), desk type and instrumentation panel, feeder pillars, bus bar trunking and schematic circuit diagrame. This software has ready made templates to design any type of panel. Just select a template as per your requirement & client specification and you find an outline of the panel you want to design. You can change the predefined dimensions before starting to design a panel. But the final dimensions would be calculated by the software itself once you have placed all the switchgears into it. The image on the left hand side shows template to design a power control centre (PCC).

6 - Tapping details for OLTC and Off Load Tap Changer upto 25 steps. Enter any + step value through - step @ any % step value,

7 - You get values of Axial and radial forces developed in the windings during short circuits, temp gradients for HV and LV, Thermal Time Constant and ability to withstand shortcircuits with winding temperature rise,

8 - Pressed Steel Radiator (PSR) data calculation added you get automatic fixing dimensions of radiators - section width, CD and no. of fins. Options to select 226, 300 and 560 width sections. Tank drawing details are generated automatically.

9 - Feature added to get winding data for an old transformer

10 - GTP (Guaranteed Technical Particulars), Core details, core & winding assembly details, estimation and costing sheets are generated in the 'Word Format' for easy access, printing and sending the same via email to clients for approval, in house departments like design, QC, purchase, estimation, production, despatch. So this distribution and power transformer design software saves time, energy and revenue. A must key tool for transformer design and training professionals and engineering students.

HV Cross Over Winding: In case you are going to design a desk type panel, the software has a ready made template as shown on the left hand side. You have the option to change any of the dimensions before beginning. the tapered part can be set at any angle and its width be increased depending upon the accessories you are going to put on it. The panel can be floor mount type or a wall mount type depending upon your site and application requirements. The back can carry switchgears like MCB or MCCB with fuse and the connections are to be made on the plate itself. Otherwise you can design a plate in circuit software and import that plate into it.

Factors controlling and affecting the design of a transformer
Principle of operation of a transformer
"A transformer is a static machine which works on the principle of mutual induction. When a coil is placed in the vicinity of an other coil, an emf if generated in the coil with the change in rate of magnetic flux associated around the other coil."
The transformer design software uses universal formulae and equations to do the calculations to design a transformer. The operational manual or handbook or book describe the complete operation to an engineer on how to use the transformer design software. The transformer design engineer can input the design parameters as per the required specifications. Its an engineer's calculator to design a transformer.

HV Disc Winding: In case you are going to design a desk type panel, the software has a ready made template as shown on the left hand side. You have the option to change any of the dimensions before beginning. the tapered part can be set at any angle and its width be increased depending upon the accessories you are going to put on it. The panel can be floor mount type or a wall mount type depending upon your site and application requirements. The back can carry switchgears like MCB or MCCB with fuse and the connections are to be made on the plate itself. Otherwise you can design a plate in circuit software and import that plate into it.

So all the transformer whether a HT transformer, a distribution transformer, power transformer, stepup transformer, stepdown transformer, auto transformer, furnance transformer, induction transformer, rectifier transformer, power supply transformer, auxillary transformer, control transformer, audio transformer, frequency transformer, EHT transformer, oil filled transformer, dry type transformer, current transformer, potential transformer, copper transformer, aluminium transformer, off load transformer and on load transformer all work upon the above said principle of operation of a transformer. The magnetizing core is a very essential part of a transformer. To get the preliminary dimensions of transformer core we first need to know the specifications of a transformer like - type of transformer (a number of transformer types are mentioned above), rating of transformer in KVA, number of phases of transformer, rated voltage for primary winding of transformer and secondary winding of transformer, the operating frequency of transformer, the vector group of transformer, short circuit impedence of transformer, no load losses of transformer, load losses of transformer, tapping requirements for transformer. The dimensions of the core of transformer are closely connected with the dimensions of other transformer parts like winding of transformer.

Transformer Tank Design : In case you are going to design a desk type panel, the software has a ready made template as shown on the left hand side. You have the option to change any of the dimensions before beginning. the tapered part can be set at any angle and its width be increased depending upon the accessories you are going to put on it. The panel can be floor mount type or a wall mount type depending upon your site and application requirements. The back can carry switchgears like MCB or MCCB with fuse and the connections are to be made on the plate itself. Otherwise you can design a plate in circuit software and import that plate into it.

The emf per turn of a transformer is one of the most important values defining not only the dimensions of a transformer, but the number of transformer winding turns too. This also influences the value of transformer short circuit impedence, the transformer weight and transformer losses etc.,. The transformer design flux density in a transformer leg depends upon the grade of CRGO core laminations that would be used in the transformer manufacture. For transformer core grades M2 to M6, the transformer design flux density is taken between 1.5 Tesla to 1.7 Tesla. Proper cooling methods must be adopted in higher rating distribution and power transformer. In HT transformer and EHT transformer, the insulation type and value should be calculated and choosen carefully. Total losses in a transformer are no load losses and load losses. As transformer is a static machine so no windage and frictional losses occure in a transformer. The temperature rise in a transformer is due to load conditions of transformer, surrounding environment of transformer, purity and cleaniness of transformer oil. The cooling surface of transformer tank must be calculated care fully to avoid over heating of transformer windings and transformer oil resulting in rise in transformer body temperature. The operational frequency of transformer also affects the temperature variations in transformer. So the transformer must be operated close to its designed frequency. The transformer temperature can also be reduced by care fully designing the transformer LT winding as to use many parallel insulated conductors instead of a single solid conductor. The HT winding transformer coils and LT winding transformer coils should have oil ducts in between layers to transfer heat generated in the HT winding transformer coils and LT winding transformer coils. The core laminations of a transformer are varnished and insulated from each other to reduce eddy current loss in a transformer. This also attributes in reduction of transformer temperature. The no. of transformer radiators are also calculated carefully. Forced air is also used to lower down the transformer temperature in case of large capacity power transformer. A transformer is provided with a temperature gause to measure and indicate the transformer oil temperature. In case of an abnormal condition a transformer protection relay called buchloze relay is provided in between the transformer tank and transformer conservator. All above design calculations are done by the transformer design software which also takes in consideration the tolerances, makes validations if some transformer design part goes wrong. The transformer design software uses universal formulae and equations to do the calculations to design a transformer. The operational manual or handbook or book describe the complete operation to an engineer on how to use the transformer design software. The transformer design engineer can input the design parameters as per the required specifications. Its an engineer's calculator to design a transformer.

The transformer design software uses universal formulae and equations to do the calculations to design a transformer. The operational manual or handbook or book describe the complete operation to an engineer on how to use the transformer design software. The transformer design engineer can input the design parameters as per the required specifications. Its an engineer's calculator to design a transformer.