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TF Joint Testing Data Acquisition Special Test Equipment
Hans Schneiderwith Robert Marsala
(609) [email protected] Operations
April 2003
Hans SchneiderEngineering Operations
2
Resistance Measurement PlanPrototype & Insitu Joints
• Mechanical Prototype Testing
• Electrical Prototype Testing
• Maintenance Insitu Testing
• Commissioning Insitu Testing
Hans SchneiderEngineering Operations
4
Resistance Measurement PlanMechanical 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 SchneiderEngineering Operations
5
Resistance Measurement PlanMechanical 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 SchneiderEngineering Operations
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Resistance Measurement PlanElectrical 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 SchneiderEngineering Operations
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Resistance Measurement PlanElectrical 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 SchneiderEngineering Operations
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Resistance Measurement PlanInsitu 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 SchneiderEngineering Operations
13
Resistance Measurement PlanInsitu 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 SchneiderEngineering Operations
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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 SchneiderEngineering Operations
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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 SchneiderEngineering Operations
21
Resistance Measurement PlanPrototype & Insitu Joints
• Mechanical Prototype Testing
• Electrical Prototype Testing
• Maintenance Insitu Testing
• Commissioning Insitu Testing
