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Sweep Frequency ResponseAnalyzer (SFRA)User GuideDoble Engineering Company85 Walnut StreetWatertown, Massachusetts 02472-4037(USA)www.doble.com72A-2570-01Rev. K07/2011

LEGAL NOTICEWarrantyEquipment LimitedWarrantyDoble Engineering Company (Doble) warrants the products that itmanufactures to be free from defects in material and workmanship for a periodof one year from the date shipped from the factory.During the one-year warranty period, Doble will repair or replace, at itsoption, any defective products or components thereof at no additional charge,provided that the product or component is returned, shipping prepaid, toDoble. The Purchaser is responsible for insuring any product or component soreturned and assumes the risk of loss during shipment. All replaced productsand components become the property of Doble.THIS LIMITED WARRANTY DOES NOT EXTEND TO ANY PRODUCTSWHICH HAVE BEEN DAMAGED AS A RESULT OF ACCIDENT,MISUSE, ABUSE, OR AS A RESULT OF MODIFICATION BY ANYONEOTHER THAN DOBLE OR AN AUTHORIZED DOBLEREPRESENTATIVE.EXCEPT AS EXPRESSLY SET FORTH ABOVE, NO OTHERWARRANTIES, EXPRESSED OR IMPLIED, ARE MADE WITHRESPECT TO THE PRODUCT INCLUDING, BUT NOT LIMITED TO,ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESSFOR A PARTICULAR PURPOSE. IN THE EVENT THE PRODUCT ISNOT FREE FROM DEFECTS AS WARRANTED HEREIN, THEPURCHASER’S SOLE REMEDY SHALL BE REPAIR ORREPLACEMENT AS PROVIDED ABOVE. UNDER NOCIRCUMSTANCES WILL DOBLE BE LIABLE TO THE PURCHASER ORANY USER FOR ANY DAMAGES, CAUSED BY OR ARISING OUT OFTHE USE OF OR INABILITY TO USE THIS PRODUCT, INCLUDINGWITHOUT LIMITATION, PERSONAL INJURY OR PROPERTYDAMAGE, ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES,EXPENSES, LOST PROFITS, LOST SAVINGS, OR OTHER DAMAGES.Software LimitedWarrantyDoble warrants the disks on which the software product is furnished to be freefrom defects in materials and workmanship under normal use for a period ofone hundred and twenty (120) days from the date of shipment from Doble.Purchaser’s exclusive remedy shall be the replacement of any disks notmeeting Doble’s Software Limited Warranty which have been returned toDoble within the warranty period.This warranty gives the purchaser specific legal rights and the purchaser mayalso have other rights which vary from state to state.

EXCEPT AS DETAILED ABOVE AND TO THE EXTENT ALLOWED BYANY APPLICABLE STATE AND FEDERAL LAWS: THIS SOFTWAREPRODUCT IS PROVIDED “AS IS” WITHOUT WARRANTY OF ANYKIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOTLIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITYAND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK ASTO THE QUALITY AND PERFORMANCE OF THIS SOFTWAREPRODUCT IS WITH PURCHASER SHOULD THE PRODUCT PROVEDEFECTIVE. PURCHASER (AND NOT DOBLE OR AN AUTHORIZEDDEALER) ASSUMES ALL LIABILITY ASSOCIATED WITH THESOFTWARE AND THE ENTIRE COST OF ALL NECESSARYSERVICING, REPAIR, OR CORRECTION.Limitations ofRemediesIf Doble notifies Purchaser that is unable to deliver replacement disks whichare free from defects in materials and workmanship, Purchaser may terminatethis agreement. By returning the software product and all copies thereof in anyform and affirming compliance with this requirement in writing, Doble willrefund the purchase price.TO THE EXTENT ALLOWED BY ANY APPLICABLE STATE ANDFEDERAL LAWS, DOBLE EXPRESSLY DISCLAIMS ALLWARRANTIES NOT STATED HEREIN. IN NO EVENT WILL DOBLE BELIABLE TO PURCHASER FOR ANY DAMAGES, INCLUDING ANYLOST PROFITS, LOST SAVINGS OR OTHER INCIDENTAL ORCONSEQUENTIAL DAMAGES ARISING OUT OF THE USE ORINABILITY TO USE ANY SOFTWARE OR PRODUCT, OR FOR ANYTECHNICAL OR EDITORIAL ERRORS OF COMMISSION OROMISSION, EVEN IF DOBLE OR AN AUTHORIZED DEALER HASBEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FORANY CLAIM BY ANY OTHER PARTY.MaintenanceFor Equipment Maintenance, contact:Customer Service ManagerDoble Engineering Company85 Walnut StreetWatertown, MA02472 (USA)Telephone: 617-923-2921FAX: 617-926-0528Email: customerservice@doble.comWeb: www.doble.com

GovernmentRestricted RightsLegendUse, Duplication, or Disclosure by the U.S. Government is subject torestrictions as set forth in subparagraphs (c)(1) and (c)(2) of the CommercialComputer Software - Restricted Rights Clause at FAR 52.227-19.IntellectualProperty NoticeThis Manual is solely the property of the Doble Engineering Company(Doble) and is provided for the exclusive use of Doble clients undercontractual agreement for Doble test equipment and services.This Manual is protected by copyright, all rights reserved. No part of this bookshall be reproduced, stored in a retrieval system, or transmitted by any means,electronic, mechanical, photocopying, recording, or otherwise without writtenpermission from the Doble Engineering Company.Doble and the Doble logo are trademarks of Doble Engineering Company.Microsoft, Windows, Windows XP, Vista, and Windows 7 are registeredtrademarks of Microsoft Corporation in the United States and/or othercountries.Copyright 1999-2011By Doble Engineering CompanyAll Rights Reserved

ContentsList of Figures .ixList of Tables . xiiiPreface .xv1. Introduction . 1-1M5200, M5300, and M5400 SFRA Instruments. 1-1Hardware Accessories . 1-3Software. 1-4PC Requirements . 1-42. Safety . 2-1Overview . 2-1General Rules . 2-1Grounding Requirements. 2-2Personnel Safety Practices. 2-33. Setting Up and Running a Test . 3-1Measurement Types. 3-1Open Circuit . 3-1Short Circuit . 3-1Step 1: Set Up and Run a Shorted-lead Test . 3-2Connect the Cable and Leads and Run SFRA 5.2. 3-2Create a Transformer Listing and Associate a Test Template with It. 3-4Run the Shorted-lead Test . 3-8Step 2: Ground the Transformer. 3-12Step 3: Prepare the Transformer for Testing . 3-1472A-2570-01 Rev. K 07/2011v

Sweep Frequency Response Analyzer (SFRA) User GuideStep 4: Select and Run a Test . 3-15Requirements for This Test . 3-15Associate the Transformer with a Test Template. 3-15SFRA Test Procedure . 3-18Self-Test Error and Warning Messages. 3-22Troubleshooting Test Results . 3-24Monitoring Waveforms . 3-24Diagnosing Open-Circuit Response . 3-25Sample Test Results. 3-25Three Responses for One Transformer. 3-25HV Wye (Star) Response . 3-27Short-Circuit Test Response. 3-27Repeat Results for One Phase at Different Times . 3-29Results Showing a Shorted Turn . 3-29Confirming the Ethernet Connection. 3-304. Managing Tests and Templates .4-1Introduction. 4-1Opening the Template Editor. 4-1Creating a New Test Template . 4-2Editing or Deleting a Template. 4-3Adding, Editing, or Deleting Tests in a Template . 4-3Creating a New Test Setting. 4-4Editing or Deleting a Test Setting . 4-45. Managing Data and Generating Reports .5-1Managing Location Information. 5-1Adding or Deleting SFRA Instrument Information. 5-3Adding or Deleting Organization Information . 5-4Managing Transformer Information . 5-5Entering a Transformer into the SFRA Database. 5-5Editing or Deleting Transformer Data. 5-6Cloning a Transformer . 5-6Importing and Exporting Transformer Files. 5-7Managing Tap Changer Data. 5-7vi72A-2570-01Rev. K07/2011

ContentsManaging Results Data. 5-8Default Data Locations . 5-8Selecting a Data Source . 5-9Export Selected Results to .CSV Files . 5-10Import Location and Transformer from Results Files. 5-11Saving and Deleting Traces . 5-11Importing 1.x and 2.x M5100 SFRA Files. 5-12Transferring Data between Machines or PCs. 5-12Settings Files . 5-12Merging Settings Files . 5-14Reports . 5-16A. Software Overview .A-1Installing SFRA 5.2 . A-1Manually Install the USB Driver. A-5Where to Find the Driver . A-5Remove Previously Installed USB Drivers. A-5Install the Driver . A-5SFRA 5.2 Software Overview. A-6File Menu . A-6Edit Menu. A-6Test Init Menu . A-7Graph Menu . A-7Help . A-9Apparatus/Test and Legend Panes. A-10Apparatus and Test Pane . A-10Legend Pane . A-1072A-2570-01Rev. K 07/2011vii

Sweep Frequency Response Analyzer (SFRA) User GuideTab Divisions in SFRA. A-11Data Manager Tab . A-11Magnitude Tab. A-12Phase Tab. A-13Impedance Tab . A-14Sub-Band Tab. A-15Waveform Tab. A-16Analysis Tab. A-17Tabulation Tab. A-18Apparatus Tab . A-19B. Test Templates . B-1Introduction. B-1Notes About the Test Templates. B-1Two-Winding Transformers . B-2Autotransformers . B-3Three-Winding Transformers . B-4C. Theory of Operation . C-1Transformer Damage and SFRA Testing . C-1How SFRA Identifies Damage to Transformers . C-2Test Cable Lengths . C-4Transformer . C-5D. Repairs and Replacement Parts . D-1Replacing a Fuse. D-1Repairs . D-3Replacement Parts . D-3M5200 and M5400 . D-3M5300. D-5E. M5200/M5300/M5400 Technical Specifications. E-1Instrument Specifications .E-1Lead Specifications.E-3PC Requirements .E-4viii72A-2570-01Rev. K07/2011

List of FiguresFigure 1.1Figure 2.1Figure 3.1Figure 3.2Figure 3.3Figure 3.4Figure 3.5Figure 3.6Figure 3.7Figure 3.8Figure 3.9Figure 3.10Figure 3.11Figure 3.12Figure 3.13Figure 3.14Figure 3.15Figure 3.16Figure 3.17Figure 3.18Figure 3.19Figure 3.20Figure 3.21Figure 3.22Figure 3.23Figure 3.24Figure 3.25Figure 3.26Figure 3.27Figure 3.28Figure 3.29Figure 3.30M5200, M5300, and M5400 Instruments . 1-2Connecting Safety Ground to Transformer. 2-2Cable and Lead Connections to the SFRA Instrument . 3-2Connect to Instrument Message. 3-3Select Instrument Window. 3-3Data Manager Tab on Main Window . 3-4Edit Apparatus Option on Edit Menu . 3-5Test Equipment Editor . 3-5Transformer Tab of Transformer Editor Window . 3-6New Serial Number Listing . 3-6Test Templates Tab of Transformer Editor Window. 3-7Template Editor Window. 3-7Apparatus Selection Window. 3-8Location of Start Test Button. 3-8Test Details Window. 3-9Cable Connections for Shorted-lead Test . 3-9Shorted-lead Test in Progress . 3-10Correct Shorted-lead Response. 3-11Open-Circuit Lead Response . 3-11De-energized and Disconnected Transformer. 3-12Grounded Transformer. 3-12Removed Isophase or GIS Link . 3-13Added Temporary Static-Discharge Grounds. 3-13Connected SFRA Leads . 3-13Removed Temporary Static-Discharge Grounds . 3-14Edit Apparatus Option on Edit Menu . 3-15Test Equipment Editor . 3-16Transformer Tab of Transformer Editor Window . 3-16Test Templates Tab of Transformer Editor Window. 3-17Template Editor Window. 3-17Apparatus Selection Window. 3-18Location of Select Test Button. 3-1972A-2570-01 Rev. K 07/2011ix