Tip of the Week Archives

Looking Ahead to 2017 December 12, 2016
Pause and Think December 5, 2016
Motor Nameplate Tolerance November 28, 2016
Older, Wiser…and More Efficient? November 7, 2016
Change From Baseline October 31, 2016
Check the Probes October 24, 2016
Head in the Clouds? October 10, 2016
T is for Training September 26, 2016
Three T’s for Technicians September 19, 2016
DC Drives September 12, 2016
Templates to the Rescue? August 29, 2016
Don’t Forget the Grease! August 22, 2016
Low Influence Rotor August 8, 2016
Starting Current vs. Running Current July 25, 2016
Good PF Failed Motor July 18, 2016
Test Your Knowledge (Part 3) July 11, 2016
Test Your Knowledge (Part 2) July 5, 2016
Test Your Knowledge (Part 1) June 20, 2016
Justification Series Tip #7 – Deep Water June 13, 2016
The Other 50% May 31, 2016
Less-to-Best Practices May 23, 2016
On That Note May 16, 2016
#1 Motor Killer Is… May 9, 2016
Why Wye? April 25, 2016
Testing…Unassigned? April 18, 2016
Justification Series Tip #6 April 11, 2016
Smaller is Bigger March 28, 2016
The Need For Speed March 21, 2016
Justification Series Tip #5 February 29, 2016
Call Us Before You Call the Crane February 22, 2016
Don’t Miss the Forest February 15, 2016
The Right Report February 8, 2016
Justification Series…Platinum Rush February 1, 2016
Defrost Your Motor Knowledge January 25, 2016
Prepare for the Market Return January 18, 2016
Get Started Right in 2016 January 11, 2016
Farewell 2015 December 14, 2015
Justification Series Tip #4…Save the Soda November 30, 2015
Help Is Just A Click Away November 16, 2015
Tip for Tap November 9, 2015
Justification Series Tip #3 November 2, 2015
Justification Series Tip #2 October 26, 2015
Don’t Forget the Power Circuit October 19, 2015
Pressure, Pressure, Pressure October 12, 2015
VFD Considerations – Part 3 October 5, 2015
VFD Considerations – Part 2 September 28, 2015
VFD Considerations – Part 1 September 21, 2015
Red is Bad September 14, 2015
Wrong Probes, Part 2 September 7, 2015
Wrong Probes August 31, 2015
The Wisdom of Why August 25, 2015
The Five Whys of Motor Failure August 17, 2015
Testing Insulation With DC Voltage August 10, 2015
How Does Water Get There? August 3, 2015
Not Just an In-Rush July 27, 2015
There is More to Capacitance July 20, 2015
Skewed Rotor Bars…Why? July 13, 2015
Database Management in SQL Server Express July 6, 2015
Rotor Analysis Techniques (Part 2 of 2) June 29, 2015
Rotor Analysis Techniques (Part 1 of 2) June 22, 2015
Action List for Rotor Anomalies June 15, 2015
Blow Your Own Horn June 8, 2015
Keep Your Eye on the Motor June 1, 2015
VFD vs. Motor May 25, 2015
Ready For a Long Hot Summer, Part 3 May 18, 2015
Ready For a Long Hot Summer, Part 2 May 11,2015
Ready For a Long Hot Summer, Part 1 May 4, 2015
A Step in the Right Direction April 27, 2015
Gaps in Your Electric Motor Reliability Program April 20, 2015
It’s Time for Spring Cleaning April 13, 2015
Borrowing Bandwidth April 6, 2015
The Right Range (revisted) March 30, 2015
Let the New Guy Start the Motor (revisted) March 23, 2015
New Year’s Motor Tip (revised) March 9, 2015
Justify, Justify, Justify (revised) March 2, 2015
Slip Sliding Away February 23, 2015
Equidistant Brush Spacing February 16, 2015
Utilize the MCEGold® Tools Available February 2, 2015
It’s All About the Base [line]…No Trouble January 26, 2015
Danger! Danger! January 19, 2015
This Battery Looks Different January 12, 2015
Magnetic Particles Find Broken Rotor Bars December 8, 2014
All Ovens Are Not Created Equal December 1, 2014
Turkeys and Motors November 24,2014
Trending Average Inductance November 17, 2014
Don’t Always Blame the Motor November 10, 2014
Tripping…What a Nuisance November 3, 2014
Show Me the Swirl October 27, 2014
Think Transformers October 20, 2014
Knowledge is Power October 13, 2014
Lifting a Motor? October 6, 2014
Concentric and Lap Wound Windings Effect on a RIC September 29, 2014
Review of Hazardous Locations September 22, 2014
Baseline Basics September 15, 2014
%FLA…When Is It Too Low? September 8, 2014
Measure Twice Cut Once September 1, 2014
IEEE Standard Relaxes on DC Armatures August 25, 2014
Insulation Temperature Limits August 18, 2014
Protect Your Investment August 11, 2014
Older vs. Newer Insulation System Analysis August 4, 2014
Training Camp July 28, 2014
Insulation Resistance Profiling July 21, 2014
Justification…Job Security for the Future July 14, 2014
Basic Motor Characteristics July 7, 2014
Wire Resistance vs. Insulation Resistance June 30, 2014
Am I Seeing a Power Factor Capacitor? June 23, 2014
Peak Voltage vs RMS Voltage June 16, 2014
Testing Corner Grounded Systems June 9, 2014
Who Has The Time? June 2, 2014
TPM and RCM May 26, 2014
Prioritizing Motor Issues May 19, 2014
Keep Power Quality Simple…Think Heat May 12, 2014
Summer Is Approaching May 5, 2014
Current Imbalance April 28, 2014
Mechanical or Electrical? April 21, 2014
Symmetrical Components April 14, 2014
Voltage Imbalance on a VFD April 7, 2014
Trending Megohm Values on Submersible Pump Motors March 31, 2014
Testing Phases With Multiple Conductors Martch 24, 2014
Before and After Testing March 17, 2014
Safety, Reliability, and Efficiency March 10, 2014
All Three Phases Would Be Nice March 3, 2014
Battery Technology Isn’t What it Used to Be… February 24, 2014
Are You Currently Experiencing “Brain Freeze”? February 17, 2014
Discharging Stored Energy February 10, 2014
Analyzing Variable Systems for Nominal Operation February 3, 2014
Extreme Cold Conditions January 27, 2014
Start Safely January 20, 2014
Failure Analysis…Seven Tips for Success January 13, 2014
Happy New Year! January 7, 2014
Have You Heard? Trend Is Your Friend December 16, 2013
Current Demodulation’s Use in Alignment December 9, 2013
Voltage Unbalance December 2, 2013
Rotor Bar Count November 25, 2013
Know Your Rotor November 18, 2013
Understanding Unusual Power System Configurations November 11, 2013
Understanding the 5th Harmonic November 4, 2013
Motor Problem or Meter Problem? October 28, 2013
What is a Baseline Worth? October 21, 2013
Winding Resistance and Temperture October 14, 2013
All Good Things Must Come to an End… October 7, 2013
Testing Synchronous Machines September 30, 2013
Twisted Shielded Pair September 23, 2013
Motor Tripped! What Next? September 16, 2013
Average Inductance September 9, 2013
Defining Inductance September 2, 2013
Motor Failed…Who Cares? August 26, 2013
How Do I Test Large DC Armature Leads? August 19, 2013
Using Modern Technology to Measure Inductance August 12, 2013
Air Gap Advice August 5, 2013
The Hidden Sensor July 29, 2013
It’s Not Always the Motor’s Fault July 22, 2013
All Star Performance July 15, 2013
Average vs. True-RMS Current July 8, 2013
Further Understanding Eccentricity Alarm Levels July 1, 2013
Beat the Heat June 24, 2013
Resistive Imbalance vs. Current Imbalance vs. Thermal Imaging June 17, 2013
Phase-to-Phase Inductance Measurements June 10, 2013
Teamwork Leads to Home Run June 3, 2013
Nameplate Speed vs. Actual Speed May 31, 2013
Field Resistance Condition Assessment May 13, 2013
Mission Critical May 6, 2013
Think Baseline – Part 2 April 29, 2013
A Hidden Sensor on Every System April 22, 2013
Think Baseline April 8, 2013
Maintenance Free Motors Now Available!!! April 1, 2013
Decrease Reactive Practices March 25, 2013
Knowing Your System March 18, 2013
Proof is in the Pudding… March 11, 2013
A Smart Approach to AC Drop Testing March 4, 2013
Better Reliability…Better Safety February 25, 2013
Safety Starts at the Top February 18, 2013
An Award Winning Program February 11, 2013
Analyzing Spectrums February 4, 2013
Do You Know… January 28, 2013
Galvanic Corrosion and High Resistance Connections January 21, 2013
What’s the Difference? January 14, 2013
Troubleshoot a Tripping Motor January 8, 2013
More Training, Better Results December 10, 2012
Destructive Versus Non-destructive Testing November 26, 2012
Tester Battery Life November 19, 2012
Establishing Band Alarms November 12, 2012
The MCEMAX™ Trilogy – Part 3 November 5, 2012
The MCEMAX™ Trilogy – Part 2 October 29, 2012
The MCEMAX™ Trilogy – Part 1 October 22, 2012
More IS Better October 15, 2012
Safety and Reliability Equal Profitability October 8, 2012
Magnetic Center vs. Mechanical Center October 1, 2012
Axial Shaft Movement September 24, 2012
Aristotle Says: September 17, 2012
PT Configuration And Power Analysis Results September 3, 2012
If in Doubt, Hipot is Out August 27, 2012
Security, Speed, and Accessibility August 20, 2012
How Low Do You Go? August 13, 2012
Cooling the Clinker July 30, 2012
Understanding Spectral Analysis Peaks July 23, 2012
Software Changes July 16, 2012
Resistive Imbalance…Check Your Alarm Setpoints July 9, 2012
Changes in Inductance Waveforms July 2, 2012
High Inductive Imbalance! What Next? June 18, 2012
Using Energy Analysis June 11, 2012
Avoiding Terminal Box Lead Confusion June 4, 2012
Check Your Current Probes Before Testing!!! May 28, 2012
High Inductance on a DC Armature? May 21, 2012
Failure Criteria May 14, 2012
Tools vs, Solutions May 7, 2012
Motor Efficiency vs. System Efficiency April 23, 2012
Avoid the Failures April 16, 2012
Quality Control – Part 3: Energized QA Testing April 9, 2012
Quality Control – Part 2: De-energized QA Testing April 2, 2012
Quality Control, the First Step to Motor Reliability March 26, 2012
How Many Rotor Bars? March 19, 2012
Apparent Broken Rotor Bars? March 12, 2012
Commutator March 5, 2012
Reduce Your Expenses February 27, 2012
High-Potential Testing…How Much is Enough? February 20, 2012
Motor Received From Rewind, Now What? February 13, 2012
Fill in ALL the Blanks February 6, 2012
MCE Acceptance Testing January 30, 2012
Current and Impedance Imbalance Relationship January 23, 2012
Current Demodulation for Fan and Pump Analysis January 16, 2012
Strive for Excellence in 2012 January 9, 2012
Let the New Guy Start the Motor December 19, 2011
Surface Moisture and the Insulation System December 12, 2011
Maintain to Maintain December 5, 2011
The Right Range November 28, 2011
Insulation Resistance Profiles November 21, 2011
Avoid Useless Data November 14, 2011
Seven-step Process for Basic Electrical Troubleshooting – Part Eight November 7, 2011
Seven-step Process for Basic Electrical Troubleshooting – Part Seven October 31, 2011
Seven-step Process for Basic Electrical Troubleshooting – Part Six October 24, 2011
Seven-step Process for Basic Electrical Troubleshooting – Part Five October 17, 2011
Platinum Plus – A South African Success Story October 10, 2011
Seven-step Process for Basic Electrical Troubleshooting – Part Four October 3, 2011
Seven-step Process for Basic Electrical Troubleshooting – Part Three September 26, 2001
Seven-step Process for Basic Electrical Troubleshooting – Part Two September 19, 2011
Seven-step Process for Basic Electrical Troubleshooting – Part One September 12, 3011
Test Your Knowledge, Part 11 September 5, 2011
Test Your Knowledge, Part 10 August 29, 2011
Test Your Knowledge, Part 9 August 22, 2011
Testing VSD/VFD Drives August 15, 2011
Start-up Current Profile August 8, 2011
They Don’t Make ’em the Way They Used To…Part 2 August 1, 2011
Evaluating Band Alarms July 25, 2011
They Don’t Make ’em the Way They Used To July 18, 2011
Power Factor Correction Capacitors July 11, 2011
There’s Always Room for Safety July 5, 2011
Remember the Basics June 27, 2011
Do You Have MCEGold? June 20, 2011
Test Your Knowledge, Part 8 June 13, 2011
Test Your Knowledge, Part 7 June 6, 2011
Test Your Knowledge, Part 6 May 31, 2011
Test Your Knowledge, Part 5 May 23, 2011
Tracking Belt Frequency with Current Demodulation May 16, 2011
Voltage Related Symptoms May 9, 2011
Failure Modes and Effect Analysis May 2, 2011
Do You Know April 25, 2011
Impact of a Phase Inversion During Manufacturing or Repair April 18, 2011
In-Rush as a Load Analysis Tool April 11, 2011
Measure, Manage, Improve April 4, 2011
Test Your Knowledge, Part 4 March 28, 2011
Test Your Knowledge, Part 3 March 21, 2011
Test Your Knowledge, Part 2 March 14, 2011
Test Your Knowledge, Part 1 March 7, 2011
Rotor Installation, How Does It Affect Inductance? February 28, 2011
Maximum Starting Current February 21, 2011
Resistance-to-Ground February 14, 2011
DC Field Resistance Variables February 7, 2011
Motor Temperature and Harmonics January 31, 2011
Success Story January 24, 2011
Swirl Effect January 17, 2011
Preventive Maintenance Process January 10, 2011
Test Your Knowledge, Part Seven December 20, 2010
Test Your Knowledge, Part Six December 13, 2010
Test Your Knowledge, Part Five December 6, 2010
Test Your Knowledge, Part Four November 29, 2010
Test Your Knowledge, Part Three November 22, 2010
Test Your Knowledge, Part Two November 8, 2010
Test Your Knowledge November 1, 2010
Armature Defects on DC Motors October 25, 2010
Confirming Current Unbalance Follow-up October 11, 2010
Confirming Current Unbalance October 4, 2010
Reliability Planning…The Earlier, The Better September 27, 2010
Trend…Your Friend in the End September 20, 2010
Inverter Testing, Part Two September 13, 2010
Inverter Testing September 6, 2010
EISA…What Does This Mean For You? Part Five August 30, 2010
EISA…What Does This Mean For You? Part Four August 23, 2010
EISA…What Does This Mean For You? Part Three August 16, 2010
EISA…What Does This Mean For You? Part Two August 9, 2010
EISA…What Does This Mean For You? Part One August 2, 2010
Limit Your Starts! July 26, 2010
Shaft Currents and Bearing Defects July 19, 2010
Getting Started Can Be Stressful July 12, 2010
Spectral Band Alarms July 5, 2010
Selling Reliability Investment to Management June 28, 2010
Voltage and Current Relationship June 21, 2010
Still Water Runs Deep June 14, 2010
Little Things Make Big Things Happen June 7, 2010
Voltage Looks Up…Resistance Looks Down May 31, 2010
Are You Selecting the Right Current Probe? May 24, 2010
Don’t Forget the Notes May 17, 2010
Repair or Replace…Tax Incentives May 10, 2010
Safe and Easy…An Unusual Pair April 26, 2010
Negative Temperature Coefficient April 19, 2010
Trouble Shooting Wound Rotor Motors April 12, 2010
Test Lead Condition April 5, 2010
Time to Trend March 29, 2010
Don’t throw those instructions away! March 22, 2010
Quality Control, the First Step to Motor Reliability March 16, 2010
Frequency Response, Range, and Resolution February 22, 2010
Storage of Spare Motors, Follow-up February 15, 2010
What is a Double Cage Rotor, Part Two February 8, 2010
New Year’s Motor Tip, Part Two February 2, 2010
New Year’s Motor Tip January 25, 2010
Are You Certified? January 18, 2010
What Happened? January 11, 2010
What is a Double-Cage Rotor? January 5, 2010
The Three E’s December 28, 2009
Don’t Forget Reliability, Part Six December 14, 2009
Don’t Forget Reliability, Part Five December 7, 2009
Don’t Forget Reliability, Part Four November 30, 2009
Don’t Forget Reliability, Part Three November 23, 2009
Don’t Forget Reliability, Part Two November 16, 2009
Don’t Forget Reliability, Part One November 9, 2009
Volt/Hz Ratio November 2, 2009
Insulation Resistance Profile (IRP) October 26, 2009
VFDs and RMS Voltage Measurement October 19, 2009
Fundamental vs. Total RMS October 12, 2009
Coefficient of Friction? October 5, 2009
Testing Variable Frequency Drives September 28, 2009
Motor Repair or Replacement? The Green Solution September 21, 2009
Effects of Post Repair Testing on Inductance September 14, 2009
Guaranteed Efficiency September 7, 2009
Temperature or Embrittlement August 31, 2009
RIC Tests and Winding Styles August 24, 2009
Misconceptions on Energy Efficient Motors August 17, 2009
MCEGold® Message Center August 10, 2009
Phase-to-Phase Resistance Readings August 3, 2009
Resistance Imbalance Change From Baseline July 27, 2009
Phasor Diagram July 13, 2009
Where is my Motor? Part 2 July 6, 2009
Setting Up Testing Routes June 29, 2009
Where is my Motor? June 22, 2009
Loose Rotor Bars June 15, 2009
Justify, Justify, Justify… June 8, 2009
Current Imbalance June 1, 2009
External Resistor Banks for Wound Rotor Motors May 25, 2009
Flash Over on Wound Rotor Motor Slip Rings May 18, 2009
Step Voltage Test May 11, 2009
Line-to-Neutral Voltage on Ungrounded Distribution Systems May 4, 2009
Power Analysis Testing April 27, 2009
Is Your Company World Class? April 20, 2009
DC Motor Neutral Axis April 13, 2009
Resistance-to-Ground Discharge Time April 6, 2009
Check Your Connections March 30, 2009
Warning About USB Thumb Drives March 23, 2009
Keep Moisture Out March 16, 2009
Conflicting Test Results March 9, 2009
A Picture is Worth a Thousand Words March 2, 2009
Surge Arrestors Effect on Motor RTG February 23, 2009
Cost Analysis Follow-up February 16, 2009
Cost Analysis February 9, 2009
Tutorials February 2, 2009
No Spell Checker? Try This January 26, 2009
Standards Associated With Electric Motor Testing, Part 5 January 19, 2009
Standards Associated With Electric Motor Testing, Part 4 January 12, 2009
Standards Associated With Electric Motor Testing, Part 3 January 5, 2009
Get Through the Holidays Safely December 22, 2008
Standards Associated With Electric Motor Testing, Part 2 December 15, 2008
Standards Associated Wtih Electric Motor Testing December 8, 2008
Power Testing Medium/High Voltage Motors December 1, 2008
Synchronous Field Inductance November 24, 2008
Temperature Effect on Synchronous Field Resistance November 17, 2008
Concentric Wound Motors and Eccentricity November 10, 2008
Cradle-to-Grave Management November 3, 2008
Power Factor Correction Capacitor Influence on Current October 27, 2008
Nameplate Information October 20, 2008
Carbon Brush Performance October 13, 2008
Possible Interference Issues October 6, 2008
Getting GOOD Commutation in Your DC Motors September 29, 2008
In-Rush/Start-Up Test September 22, 2008
MCEGold EMAX Test Results Without Voltage September 15, 2008
Resistive Imbalance September 8, 2008
Verifying Common-Phase 2 Switch Position September 1, 2008
Protect Your Equipment…and Yourself August 25, 2008
Verify Your Current Readings August 18, 2008
Battery Care August 11, 2008
Testing Synchronous Motor Rotors August 4, 2008
Low Resistance-to-Ground Readings in Wound Rotor Motors July 28, 2008
Computer Viruses Are Bad July 21, 2008
Printing Data Using MCEGold July 14, 2008
MCEGold Message Center July 7, 2008
Eccentricity Tests with VFD’s or RVSS’s (corrected) June 30, 2008
Rotor Testing of a Wound Rotor or Synchronous Motor June 23, 2008
Rotor Testing with VFD June 16, 2008
Power Analysis Testing – Part Four June 9, 2008
Power Analysis Testing – Part Three June 2, 2008
Power Analysis Testing – Part Two May 26, 2008
Power Analysis Testing – Part One May 19, 2008
DC Motors: Epic Fail? May 5, 2008
Eccentricity Tests with VFD’s or RVSS’s April 28, 2008
Rotor Tests With Reduced Voltage Soft Starts (RVSS) April 21, 2008
Rotor Tests for Variable Frequency Drives April 14, 2008
In-Rush/Start-Up Test With Variable Frequency Drives (VFDs) or Reduced Voltage Soft Starts (RVSS) April 7, 2008
Carbon Buildup on Wound Rotor Motors March 31, 2008
Inductance vs. Resistance March 24, 2008
My Bearings Ate Themselves, Part Two March 17, 2008
Emax Testing on Multiple Conductor Motors Part Two March 10, 2008
Trending Mitigating Output Devices March 3, 2008
Trending Inverter Input Rectifier and Output IGBT Devices February 25, 2008
Resistance vs. Inductance February 18, 2008
Emax Testing on Multiple Conductor Motors February 11, 2008
Motor Testing With Semi-conductor Type Motor Controllers February 4, 2008
Using the In-Rush/Start-Up Test for Special Start Applications January 28, 2008
Corona Part 3: Rise of the Machines January 21, 2008
My Bearing Ate Itself January 14, 2008
Installation of MTAP2 CT’s January 7, 2008
Importance of Properly Seating Brushes on DC Motors January 2, 2008
EMAX Troubleshooting December 24, 2007
Resistive Imbalance in Multiple Lead Motors December 17, 2007
All About Corona, Part Deux December 10, 2007
MCE Acceptance Testing December 3, 2007
Testing AC Variable Frequency Drives November 26, 2007
Using Demod to Determine a Loose Motor Foundation November 19, 2007
Backing Up MCEGold Calibration Files November 12, 2007
Corona: What Is It, and How Does It Affect You? November 5, 2007
How to Extend Battery Life October 29, 2007
Basic Electrical Troubleshooting – Step 7 October 22, 2007
Basic Electrical Troubleshooting – Step 6 October 15, 2007
Basic Electrical Troubleshooting – Step 5 October 8, 2007
Basic Electrical Troubleshooting – Step 4 October 1, 2007
Basic Electrical Troubleshooting – Step 3 September 24, 2007
Basic Electrical Troubleshooting – Step 2 September 17, 2007
Basic Electrical Troubleshooting – Step 1 September 10, 2007
The Seven-step Process for Basic Electrical Troubleshooting September 4, 2007
What Causes Inductive Imbalance in Wound Rotor Motors? August 20, 2007
Current Probe Range Selection August 13, 2007
Establishing Warning Settings for Resistance Imbalance August 6, 2007
Effects of Unbalanced Voltage on Motor Life July 30, 2007
Correlating Armature Current Trends and Insulation Resistance-to-Ground July 23, 2007
Optimize Your Access™ Database Performance July 16, 2007
Six Methods of Rotor Evaluation Using MCEMAX – PART SIX July 9, 2007
Six Methods of Rotor Evaluation Using MCEMAX – PART FIVE July 2, 2007
Six Methods of Rotor Evaluation Using MCEMAX – PART FOUR June 25, 2007
Six Methods of Rotor Evaluation Using MCEMAX – PART THREE June 18, 2007
Six Methods of Rotor Evaluation Using MCEMAX  – PART TWO June 11, 2007
Six Methods of Rotor Evaluation Using MCEMAX  – PART ONE June 4, 2007
Using %Load Deviation to Trend Rotor Defects May 21, 2007
Saving Time Using the DC Spanned Bar Test Method May 7, 2007
Testing Dry-type Transformers April 28, 2007
Using the MCEMAX to Correct Rod Mill Clutch Engagement April 23, 2007
Using Current and Impedance Imbalance to Identify Stator Anomalies April 16, 2007
Non-Symmetric Thermal Expansion of Rotors March 12, 2007
Harmonics and Motor Temperatures March 5, 2007
Using Advanced Search for Reporting and Scheduling February 26, 2007
Using the In-Rush/Start-Up for Process Analysis February 19, 2007
Dynamic Testing of Medium/High Voltage Motors February 12, 2007
Dynamic DC Motor Analysis – Brush Arcing & Sparking February 5, 2007
Dynamic DC Motor Analysis January 29, 2007
Isolating the Cause of a VFD Trip January 22, 2007
Establishing Band Alarms for Belt Frequency Peaks January 15, 2007
Rotor Defects in Large 2-pole AC Induction Motors January 8, 2007

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