Megger frax 99 User manual

© 2011 Megger Sweden AB
Released in 2011-06-01
FRAX User's Manual
Version 2.5

Notice of copyright & proprietary rights
© 2011 Megger Sweden AB. All rights reserved.
The contents of this manual for FRAX 2.5.2272 are the property of Megger Sweden AB. No part of this work may be
reproduced or transmitted in any form or by any means, except as permitted in written license agreement with Megger
Sweden AB. Megger Sweden AB has made every reasonable attempt to ensure the completeness and accuracy of this
document. However, the information contained in this manual is subject to change without notice, and does not
represent a commitment on the part of Megger Sweden AB. Any attached hardware schematics and technical
descriptions, or software listings that disclose source code, are for informational purposes only. Reproduction in whole or
in part to create working hardware or software for other than Megger Sweden AB products is strictly prohibited, except as
permitted by written license agreement with Megger Sweden AB.
TRADEMARK NOTICES
FRAX is a trademark of Megger Sweden AB. All other brand and product names mentioned in this document are
trademarks or registered trademarks of their respective companies.
Megger Sweden AB, Eldarvagen 4, SE-187 75 TÄBY, Sweden
Tel: [phone], Fax: [phone]
E-mail: [e-mail] Internet: www.megger.com
USER'S MANUAL
for
Sweep Frequency Response Analyzer
FRAX 99, 101 and 150

IContents
© 2011 Megger Sweden AB
Table of Contents
1FRAX 1
................................................................................................................................... 11.1 Safety First
................................................................................................................................... 21.2 FRAX Technical Specifications
................................................................................................................................... 31.3 Instrument Panels
................................................................................................................................... 71.4 Bluetooth Communication (only FRAX-101)
................................................................................................................................... 91.5 Built-in Battery Pack and Charger
................................................................................................................................... 101.6 Sweep Frequency Response
................................................................................................................................... 111.7 Calibration
................................................................................................................................... 111.8 Disposal
2Quick Start Tutorial 11
................................................................................................................................... 112.1 Saftey First
................................................................................................................................... 122.2 Preparatory Procedures
................................................................................................................................... 122.3 Start Up FRAX and Establish Communication
................................................................................................................................... 132.4 Create a New Test
................................................................................................................................... 142.5 Test Lead Connection
................................................................................................................................... 162.6 Test System Verification
................................................................................................................................... 192.7 Start Measurement
................................................................................................................................... 202.8 View Data
................................................................................................................................... 202.9 Export Data
3Installing FRAX Software 20
................................................................................................................................... 213.1 PC Requirements
................................................................................................................................... 213.2 Welcome Screen
................................................................................................................................... 213.3 License Agreement
................................................................................................................................... 213.4 Already Installed
................................................................................................................................... 223.5 Installation Location
................................................................................................................................... 233.6 Shortcuts Screen

FRAX User's ManualII
© 2011 Megger Sweden AB
................................................................................................................................... 233.7 Installation Progress
................................................................................................................................... 243.8 Installation Complete
4FRAX Software 24
................................................................................................................................... 264.1 File Menu
................................................................................................................................... 394.2 Edit Menu
................................................................................................................................... 404.3 Configuration Menu
................................................................................................................................... 564.4 Windows Menu
................................................................................................................................... 574.5 Action Buttons
................................................................................................................................... 594.6 Legend
................................................................................................................................... 624.7 Views
5Appendices 64
................................................................................................................................... 645.1 Appendix A: Calibration Instruction
................................................................................................................................... 705.2 Appendix B: Optional Active Probes
................................................................................................................................... 715.3 Appendix C: Adjusting Output Voltage
................................................................................................................................... 725.4 Appendix D: Sweep Name Settings
................................................................................................................................... 765.5 Appendix E: FRAX cables and clamps

1
FRAX
© 2011 Megger Sweden AB
1FRAX
Congratulations to your choice of FRAX Sweep Frequency Response Analyzer by Megger. We
at Megger have done our best and will continue do our best to satisfy our customers. Please
visit our home page at www.paxdiagnostics.com and do not hesitate to contact us directly.
Most dielectric and mechanical failures in large power transformers are preceded by
mechanical changes in the winding structure. These displacements in the winding structure
may be the result of transportation damage, short circuit forces, or natural aging effects on
the insulating structures used to support the windings. Detection of these displacements
before dielectric failure reduces maintenance costs, and improves system reliability.
FRAX Sweep Frequency Response Analyzer (SFRA) is designed to detect winding
displacements in power transformers or faults in the magnetic core. The system provides
attenuation signature curves that can easily be compared for deviations which indicate:
Core movements
Winding deformations and displacements
Faulty core grounds
Partial winding collapse
Hoop buckling
Broken or loosened clamping structures
Shorted turns and open windings
Unique features of FRAX:
High accuracy
Small size and low weight
Powerful analysis tools that are intuitive and easy to use
Wireless, Bluetooth, communication between laptop an instruments allows flexibility in the
field (FRAX-101 only)
Galvanic isolated USB interface for personnel and equipment safety
More safety and technical details are given in the following sections:
Safety First
FRAX Technical Specifications
Instrument panels: Front, Rear
Sweep Frequency Response
Test System Verification
Calibration
Disposal
1.1 Safety First
FRAX is a Sweep Frequency Response Analyzer designed for measuring of power transformers
in the field and at manufacturing sites.
Always follow local safety regulations.
Make certain that all personnel working with FRAX instrument have been trained in its use
and that all applicable safety precautions are taken.
Always connect the instrument to protective earth/ground using the separate earth/ground
cable. The earth/ground cable should be the first connection made and the last removed.
Do not use any accessories that are not intended for use together with the FRAX.
Refer all servicing to qualified personnel.

2FRAX User's Manual
© 2011 Megger Sweden AB
1.2 FRAX Technical Specifications
General
FRA Method:
Sweep frequency (SFRA)
Frequency Range:
1 Hz - 10 MHz, user selectable
Extended Frequency Range:
0.1 Hz - 25 MHz, user selectable
Number of Points:
User selectable, maximum 32,000
Points Spacing:
Logarithmic, linear or combination of both
Dynamic Range/Internal Noise:
Dynamic Range/Internal Noise: >130dB (FRAX-99
>115dB). Extended range >110dB
Accuracy:
±0.5 dB (FRAX-99 ±1 dB) down to -100dB
IF Bandwidth/Integration Time:
User selectable
Software:
FRAX for Windows 2000/XP/Vista
PC Communication:
Bluetooth (FRAX-101) and galvanic isolated USB
Calibration Interval:
Maximum 3 years
Standards:
Fulfill requirements in CIGRE Brochure 342,
Mechanical Condition Assessment of Transformer
Windings using FRA and Chinese standard DL/T
911-2004, FRA on Winding Deformation of Power
Transformers
Analog Output
Channels:
1
Compliance Voltage:
0.2 - 20 V peak-to-peak
Measurement Voltage at 50 Ohm
0.1 - 10 V peak-to-peak
Output Impedance:
50 Ohms
Protection:
Short-circuit protected
Analog Inputs
Channels:
2
Sampling:
Simultaneously, 100MS/s
Input Impedance:
50 Ohms
Physical
Instrument Weight
1.4 kg/3.1 lsb, 1.9 kg (FRAX-101 with Battery)
6 kg (13 lb) (FRAX-150)
Dimensions
250 x 169 x 52 mm (9.84 x 6.65 x 2.05 in.)
305 mm x 194 mm x 360 mm (12 in. x 7.6 in. x
14.2 in.) (FRAX-150)
Input Voltage
90-135VAC and 170-264VAC, 47-63 Hz
Environmental
Operating Ambient Temperature:
-20° to 50°C (-4 to 122°F), Bluetooth 0° to 50°C
-5° to 50°C (23 to 122°F) for FRAX-150
Operating Relative Humidity:
< 90% non-condensing
Storage Ambient Temperature:
-20° to 70°C
Storage Relative Humidity:
< 90% non-condensing
CE Standards:
IEC61010 (LVD) EN61326 (EMC)
PC requirements

3
FRAX
© 2011 Megger Sweden AB
Operating System
Windows 2000, Windows XP or Windows Vista
Processor
Pentium 500 MHz or higher
Memory/Hard Drive
256MByte / 30MByte free or more
Interface
Bluetooth (FRAX-101 only) and USB
Specifications are subject to change without notice.
1.3 Instrument Panels
1.3.1 FRAX-101/FRAX-99
1.3.1.1 Front Panel
Left-hand side, top down:
On/Off:
On/Off-switch, to turn the instrument On/Off, Switch labeled
I (On) and 0 (Off).
DC Input:
DC-input, to connect the AC/DC adapter.
USB:
USB-connector type B, to connect a USB cable to PC
Antenna (only FRAX-101):
Bluetooth module, enables Bluetooth communication
Right-hand side, top
down:
Generator (Yellow):
Generator output connected to Reference at Red Clip
Reference (Red):
Reference input connected to Generator at Red Clip
Measure (Black):
Measure input Connected to Black Clip

4FRAX User's Manual
© 2011 Megger Sweden AB
Protective Earth/Ground
symbol and Protective
Earth/Ground connector
Always connect the instrument to station earth/ground using
the separate earth/ground cable. The separate earth/ground
wire should be the first connection made and the last
removed.
Probe
Connector for active probes. Optional and available on order.
Caution, risk of danger
symbol
Refers to follow instructions stated in User's Manual to ensure
safety. See Safety First.
1.3.1.2 Rear Panel
Left-hand side, top down:
Informative text
Serial number
Right-hand side, top
down:
DC input
DC-input, to connect the double insulated AC/DC adapter.
DC symbol. Polarity Symbol.
CE-mark
Megger guarantee that this product complies with relevant
CE directives and corresponding standards.
Calibration date

5
FRAX
© 2011 Megger Sweden AB
1.3.2 FRAX-150
Left-hand side, top down:
USB:
USB-connectors
Network:
For connecting the FRAX-150 to LAN
Serial port:
For serial communication.
Right-hand side, top
down:
Protective Earth/Ground
connector
Always connect the instrument to station earth/ground using
the separate earth/ground cable. The separate earth/ground
wire should be the first connection made and the last
removed.
Power connector
Generator (Yellow):
Generator output connected to Reference at Red Clip
Reference (Red):
Reference input connected to Generator at Red Clip
Measure (Black):
Measure input Connected to Black Clip
Below the screen is a standard qwerty keyboard containing some special keys.
Tab
Backspace (or with shift) Delete
Shift key
On the right of the screen are some function buttons. They are

6FRAX User's Manual
© 2011 Megger Sweden AB
Power down. Shuts down the FRAX-150 computer.
Home (not used)
Help
Information (not used)
Page Up
Page Down
On the right you will find the navigation panel.
In the middle of the navigation panel you will find the controls for the pointer and buttons
for left (top) and right click (bottom). The navigation panel also contains:
Test button. Press this to start a new test or measurement. This button has the
same functionality as the "Start" button on the FRAX-150 screen.