Feb 11, 2011 Replacement Solenoid

Items for followup from previous meeting

1. Power supply. Current ~ 15KA, voltage 5-10 V. (Could existing power supply 3KA/10V be converted to 6KA/5V?)
   • Elton can obtain cost estimates for this power supply
2. Cryogenic plant
   • Primary circuit: Forced flow He at 4.5K, < 10g/s, ~5-10 bar, pressure drop < 2 bar.
   • Secondary circuit: Deliver intermediate temperature He gas at 20-70 K to HTS vapor cooled current leads
   • Jonathan will investigate feasibility/cost of modifying existing refrigerator or purchasing new to deliver these requirements. Provide details to Ettore
3. High-current HTS (17KA) vapor cooled leads
   • Ettore will provide this information based on Sultan design
4. Fast protection system (external), with response time of ~0.5 s.
   • Commercial 4 parallel breakers 5KA each (20KA total), 2KV max. Two independent systems for redundancy
   • Ettore will obtain details of these existing systems.

Tentative Agenda

1. Background (Elton)
2. Discussion of items Ettore sent via e-mail

Minutes

Attending: