Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA The Model 505 CT/PT Analyzer

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Model 505 – What is it? Testing Capabilities CT/PT – Why Test? Value in Purchase Welcome & Thank You!

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA –It’s a small portable tester for testing CT’s and PT’s in- or out of-service –It provides test data to determine if the CT’s or PT’s are bad –It helps diagnose installation issues The Model 505 is a Current Transformer and Potential Transformer AnalyzerModel 505 What is it?

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA What is a CT? l A Current Transformer that reduces high primary current to 5 amps for measurement by a revenue meter. l A CT is designed to make this reduction accurately when driving the secondary current into a known burden. l If the secondary burden is exceeded, the CT’s accuracy will be compromised.

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA CT Accuracies What is meant by +/- 0.3 % Between the Burdens of 0.1 and 0.5 ohms? – 2.0 RF 10% Current 100% 0.6% 0.3% -0.3% -0.6% 200% or Rating Factor Below 10% and Above Rating Factor Current – Accuracy is not Guaranteed Above 0.5 ohms of Total Circuit Burden – Accuracy is not Guaranteed

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA What is BURDEN? The total amount of resistance in Ohms and inductance in Milli-Henries which may be connected to the secondary without causing a measurable error greater than specified by the CT’s accuracy classification.

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA What Makes Up The Burden? Electricity Meter Current Coils Meter Socket Test Switch Components Wire Gage All compression connections

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Installation Issues? Mis-Wired Installation Wrong Nameplate Information Wrong system Multipliers Lightning strike causes shorted windings or magnetizes the core. Open Secondary causes failed insulation in CT windings or magnetizes the core CT age causes Insulation Failure Installation age/location causes excessive Circuit Burden

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Model 505 CT/PT Testing Capabilities

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Model 505 Admittance Test Tests CT’s in Circuit or out of Circuit (with & without Load) Easily checks for Open Circuits, Shorted CT’s, Bad CT Windings – all from the Test Switch – Does not Magnetize the CT –Because of sensitivity of the Admittance Testing, large changes in results will be seen on circuits with minor problems. Results are very repeatable and independent of load. Results are evaluated by comparing the results to the other CT readings and also comparing the previous results

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Model 505 CT Burden Test A Meter Circuit Burden Test is accomplished by inserting a know load (resistance) and comparing the Before and After secondary current measurement. A burden tests helps determine the capability (VA) of the CT. Acceptable Burden Tests require a reasonable load to be present (50% of rating). Burden Test Results significantly vary based on the load and require a knowledgeable person to interpret.

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Model 505 Demag Utilizes the Burden Resistance to take the CT into saturation and then bring it out of saturation To ensure the CT is properly Demagged, the CT should be loaded to 50% or more of rating (typically 2.5 amps)

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Model 505 CT Ratio Test A Ratio Test determines the Current Ratio and Phase Angle between the Primary and Secondary Currents on the CT A Primary Current Probe is utilized for direct primary current measurement Accurately Measures Actual Ratio and Phase angle between the Primary / Secondary Service

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Model 505 PT Burden Test A PT Burden test is used to determine whether a PT has enough VA capability to drive the attached load and provide an accurate voltage to the measurement circuit To perform the test, varying Burdens (Resistance) are applied to the PT. The Before and After Burden Application is compared. If a change is realized, either the PT is rated too small, significant Burden is in the measuring circuit or too much load (relays, etc..) is ‘hung’ on the PT.

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Model 505 Service Wiring Test The 505 includes an Accurate Single Phase Digital Volt / Amp / Phase Angle Meter By Taking a few Measurements – A Tester can accurately determined if the Service is properly Wired All measurements taken from test switches

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA CT’s and PT’s ratio down the real power for easy measurement and isolation –Directly involved with billing of consumer High error tolerances allow for large revenue loss –Transformers installations are gaining attention due to high loss capabilities –CT’s and PT’s are utilized on large consumers Typically 80%, or more, revenue comes from large Consumers Why Test CT’s and PT’s?

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Utilities –Common Trends Down Sizing Personnel Limited Resources Tight on Budget

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Why the 505? The 505 is Ideal! Less People doing more work –505 is Quick and Simple »Limited test time, no problem – short and simple or complex investigation »Focus on top 10 power consumers for immediate payback –505 is Unique and Powerful »Admittance testing, Ratio Testing, Burden Testing all in one test kit Payback comes from finding lost Revenue –505 is Low cost with High ROI »Easily find wiring errors and CT problems -- $$$$$

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Application Note –Learn how the using the 505 can benefit your company Admittance Testing Click Me

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Value in Purchase How can I justify the cost? Test CT’s to find lost Revenue –Pays for itself and beyond  It Pays your Company Test Ratio, Burden and Admittance –Many ways to diagnose a problem Admittance test allows a way to test with or without an energized site –Prevents wasted trips to customer site

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Value in Purchase – Cont Ability to Demagnetize CT’s –Recover CT’s without disconnecting customer –Recover lost revenue caused by a magnetized CT Radian Research - 2 year warranty –No more worry about equipment failure Onsite or PowerPoint Training –Easy Out of box operation Experience and knowledgeable support staff

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Available Model 505 Configurations –With CT/PT Burden Option –Without CT/PT Burden Option Extended Lid – Gives extra room to store additional cables

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Accessories Accessories for Admittance and Burden Testing – CT Test Leads 7½ foot lead terminated with Superior test switch safety probe. – CT Test Leads 7½ foot lead terminated with Westinghouse test switch safety probe.

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Accessories – Cont Accessories for Ratio Testing –JM 875 Current Probe AC Clamp-on Current Probe - Current Ranges A; A; A. –MR521 Current Probe CT Clamp-on current probe / 1500 ampere range –Model 3000 Rope CT Lightweight with a measurement range of 5 to 3000A rated at 1000 V max.

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Accessories – Cont2 Accessories for High Voltage Ratio Testing –LW AC Current Probe Fiber optic coupled CT current probe for primary measurements ampere range. Maximum cable diameter 1.8” Accuracy ±1.5% –LW AC Current Probe Maximum cable diameter 3.8” Rated to 150kV Line to Line

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Radian’s Top Products for Any Utility Model 505 RM-17 Model 403 RD- 23 Master Reference Standard All Utilities need a Model 505! Click Me

Radian Research, Inc. Radian Research, Inc. an employee owned company Power and Energy Measurement Specialists 3852 Fortune Drive Lafayette, Indiana USA Radian Research Inc Fortune Drive Lafayette Indiana Phone: Fax: Thank You! Click Me Order Here