Transformers Design

Automation

By SARA Consultants,

A transformer people since

Three Decades

Visit us at: saraconsultants.com

Need for Automation

Request for a quotation Or Tender for transformers can come at any time of an year.

Time available for replying can be from one hour to few days only.

Simultaneous demands from different customers at the same time is possible.

The design and Cost estimation people are over pressed to meet the targets in spite of their regular involvements with manufacturing / testing departments.

Possibility of mistakes, changes in design requirements, convincing task of customers are not ruled out.

All quotations may not realize in to Work Order but nothing to be neglected.

Efforts from SARA consultants

• Since 1995 we were associated with many manufacturers in establishing manufacturing and testing facility and offering design support to many firms.

• Felt the urgency in Design and costing submissions.

• Visualized that PCs would help ( PCs were costly in those days) and attempted on it.

Attempts on Automation

• Developed Software based assistance on Core

cutting arrangement which was taking more time

and repetitive calculations. – Found remarkable

accuracy and time savings.

• Encouraged by this, started putting efforts on

Design calculations. – At that time XL based

calculations were used by many people.

• Observed weak points in XL system. So

concentrated on programming techniques.

Achievements

• Numerous software modules have been developed in collaboration with actual users.

• Advantages observed: • Formulae and limits are not exposed / non editable.

• Impedance and Load loss can be tuned Automatically.

• Many designs can be generated by varying various factors to know the costing economics without loosing quality and Specs.

• Multiple types of Print outs are possible.

• Interlinking of outputs to other software like drawing, Simulation tests, guidance values for test field, Re-designing in case of changes in parameters or pricing indexes.

• Drawings to scale can be generated within few minutes and later on can be edited easily for manufacturing.

• Quicker Submission of tenders.

Varieties in software upto 132kv 60MVA by

SARAConsultants

2 Winding Power and Distribution transformers with

AutoCAD Interface.

3 winding Wind Mill and Furnace transformers

5 winding Separate Coarse, Fine, & Edge Winding Tapping

Transformers for OLTC.

Rectangle core Small transformers with multiple windings.

Core cutting schedules.

Dry type VPI and Cast Resin type Designs.

Test field software to generate test certificate.

Reverse Design from an existing Transformer under

Repair – Using Core frame as input data

Tender Spec Sheet

Electrical Design Software

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Costing Sheet

GTPdat.CSV

GA-Input.xls

Drawing Software BOM Files

(Consolidated BOM.csv)

Weights

General Technical

Particulars (GTP.Doc)

Black :

Red :

Blue :

Electrical Design Sheet

Intermidate Files

Input Files / Working Files

Output Files

(GtpIS.Doc)

(DesPrt.Doc)

GA

Tank

Lid

Consolidated

Accessories

GA Drawings

Fab. Drawings(IndividualDraw.dwg)

Accessories & Fittings

Data Base

DWG - Interface

Manual Entry

The Input data file can be :

a. Tender Spec Sheet

b. TrialsList.csv OR

c. GA-Input.xls

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Saving of tender spec file Will create

into new folder:

a. Tender sheet

b. Costing sheet (Empty)

c. Drawing Files (Empty)

d. GA-Input.xls (Empty)

e. Drawing Interface Shortcut

Electrical Design Software creates

into Above said folder:

a. GTPdat.csv

b. LOMtxt.csv

c. Design Sheet

d. Trialslist.csv

Drawing Software creates files into

Above said folder:

a. Drawing File (As per Scale)

b. BOM Files (csv Files)Other Files

(Auto CAD)

(GA.dwg)

Tender Stage

Design Stage

Drawing Stage

Flow Chart of Design Automation

Screen Shots of 2 WDG Software

Screen Shots of Multi Winding Transformers

Screen Shot of Repair-Design. Core Frame size as Input

Screen shot of 2Wdg with separate Tap winding

Details and Printout Samples

Print Out

Samples

2 Winding MULTI

Winding Design3Wdg

Detailed PDF files

2wdg-Details.pdf ACAD-3D-Details

Demo-Videos Folder 66MB

https://www.dropbox.com/sh/jj26

mey1ajzakh0/kgAUJA2U3w