Hypertronics connectors at FNALVMTF L series modular Hypertronics

Hypertronics connectors at FNAL/VMTF L series modular Hypertronics connectors in use at Fermilab/VMTF since fabrication of the LHC IR quadrupoles More than decade of reliable work at superfluid temperatures Insulator: Diallyl-Phthalate (DAP) 3 different types of connectors are used at VMTF: o 2 -pin connectors for heaters o 17 -pin connectors for strain gauges o 5 -pin - for CVT and FVT Current rating: 8 A Contact Life Cycle: > 100 000 Breakdown voltage: > 2000 V RMS More details here: http: //www. hypertronics. com/en/Products/Modular-Connectors/L-Series. aspx 1

Hypertronics connectors at VMTF FVT Spot Heaters FVT/Heater connector Strip/Protection Heaters 2

Voltage breakdown tests 5 -pin FVT/CVT connectors were tested in Helium gas and air: o Breakdown voltage of 900 -1600 V reached in Helium gas* o Successfully tested up to 3500 -4000 V in air*. *Kapton insulator in between the modules significantly improves the breakdown voltage FNAL Magnet Connectors Feedthrough connectors (Lambda plate) Instrumentation tree Hypertronics (2 k. V) Amphenol (>1. 5 k. V) Circular MIL spec CERN LHC IR Burndy (2 k. V) Fishers (5 k. V) Harting P. Fessia et al. , “Guidelines for the insulation design and electrical test of SC accelerator magnets during design assembly and test phase”, TE/MSC/MDT 1264529, 2013 Jan. 29 Maximum reference voltage Vmaxr (Vq plus 450 V and 150 V =1600 V) Voltage for test qualification in LHe 1. 2 Vmaxr (1920 V) Voltage for test qualification in He gas 0. 5 Vmaxr (800 V) 3