TF Joint Testing Data Acquisition Special Test Equipment

TF Joint Testing Data Acquisition Special Test Equipment Hans Schneider with Robert Marsala (609) 243 -2017 hschneid@pppl. gov Hans Schneider Engineering Operations April 2003

Resistance Measurement Plan Prototype & Insitu Joints • Mechanical Prototype Testing • Electrical Prototype Testing • Maintenance Insitu Testing • Commissioning Insitu Testing Hans Schneider Engineering Operations 2

Resistance Measurement Plan Mechanical TF Joint Test System • Mechanical Prototype Testing – – Cyclical Mechanical Loads Applied to Prototype Joint Measure Joint Voltage Drop with 100 Amperes Applied Voltage Measured at Two Joint Locations Automated Test Stand Control & Data Acquisition Hans Schneider Engineering Operations 4

Resistance Measurement Plan Mechanical TF Joint Test System • Mechanical Prototype Testing – – Cyclical Mechanical Loads Applied to Prototype Joint Measure Joint Voltage Drop with 100 Amperes Applied Voltage Measured at Two Joint Locations Automated Test Stand Control & Data Acquisition • Joint Voltage Drop Accuracy Factors – Limited by Cycle Time – Initial Investigation Indicates 0. 5% Should be Possible – Cycle Dwells Could Increase Accuracy to 0. 2% or Better Hans Schneider Engineering Operations 5

Resistance Measurement Plan Electrical TF Joint Test System • Electrical Prototype Testing – – Cyclical Electrical Loads Applied to Prototype Joint Measure Joint Voltage Drop with > 70, 000 Amperes Applied Voltage Measured at Up to Eight Joint Locations Remote Control of Automated Data Acquisition System Hans Schneider Engineering Operations 8

Resistance Measurement Plan Electrical TF Joint Test System • Electrical Prototype Testing – – Cyclical Electrical Loads Applied to Prototype Joint Measure Joint Voltage Drop with > 70, 000 Amperes Applied Voltage Measured at Up to Eight Joint Locations Remote Control of Automated Data Acquisition System • Joint Voltage Drop Accuracy Factors – TF Power Supply Current Measurement Accuracy – Magnetic Field Influences on Measurement Leads & System – Unknown Accuracy at This Time Hans Schneider Engineering Operations 9

Resistance Measurement Plan Insitu Maintenance Test System • Maintenance Insitu Testing – – Permanent Test Cell Installation Measure Joint Voltage Drop with +/-200 Amperes Applied Each of 48 Joints Measured at One Joint Location Automated Test Cell Data Acquisition System Hans Schneider Engineering Operations 12

Resistance Measurement Plan Insitu Maintenance Test System • Maintenance Insitu Testing – – Permanent Test Cell Installation Measure Joint Voltage Drop with +/-200 Amperes Applied Each of 48 Joints Measured at One Joint Location Automated Test Cell Data Acquisition System • Joint Voltage Drop Accuracy Factors – “Ambient” Electrical Noise & Long Joint Cable Leads – Combat with DC Current Reversal & Long Integration Times – Unknown Accuracy at This Time Hans Schneider Engineering Operations 13

Resistance Measurement Plan Insitu Commissioning Test System • Commissioning Insitu Testing – – Utilizes Maintenance System Wiring Measure Joint Voltage Drop with Up to 72, 000 Amperes Instrument One, Possibly Two TF Flag Joints Data Collected via 908 or 3232 Transient Digitizer Hans Schneider Engineering Operations 15

Resistance Measurement Plan Insitu Commissioning Test System • Commissioning Insitu Testing – – Utilizes Maintenance System Wiring Measure Joint Voltage Drop with Up to 72, 000 Amperes Instrument One, Possibly Two TF Flag Joints Data Collected via 908 or 3232 Transient Digitizer • Joint Voltage Drop Accuracy Factors – TF Power Supply Current Measurement Accuracy – Magnetic Field Influences on Measurement Leads & System – Unknown Accuracy at This Time Hans Schneider Engineering Operations 16

Resistance Measurement Plan Prototype & Insitu Joints • Mechanical Prototype Testing • Electrical Prototype Testing • Maintenance Insitu Testing • Commissioning Insitu Testing Hans Schneider Engineering Operations 21