Effects of Formvar coating and copper-nickel outer sheath on the ac losses of multi-strand subsize cables

Technical Report · Thu Jan 31 23:00:00 EST 1985

DOI:https://doi.org/10.2172/5726299· OSTI ID:5726299

Kim, S H

Ac losses of two subcables, one with Formvar coating on the strands of the BNL 12-ml NbTi/Cu/CuNi conductor and another without the coating, were measured using the ANL Subcable Test Facility. The results indicate that couplings among the strands with and without the Formvar coating were quite weak. Weak coupling of the bare strands is due to the high resistance of the copper-nickel outer sheath. In the regime of B(dot) = 0 approx. 1.2 T/s and B = 0 approx. 4 T, the magnetic diffusion time constant was (3.8 - 5.7) x 10/sup -3/ s.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5726299
• Report Number(s): ANL/FPP/TM-200; ON: DE85010413
• Country of Publication: United States
• Language: English

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AC LOSSES
ALLOYS
CABLES
COATINGS
CONDUCTOR DEVICES
COPPER ALLOYS
DIFFUSION
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ENERGY LOSSES
EQUIPMENT
FORMVAR
LOSSES
MAGNETIC FIELDS
MATERIALS
NICKEL ALLOYS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE TESTING
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYACETALS
POLYMERS
SUPERCONDUCTING CABLES
SYNTHETIC MATERIALS
TESTING