Levitation

Car above the track

Track - Neodymium magnets NdFeB 40x15x6/N42 - 240 pcs.

levitating neodymium magnet



Cryocooler

Cryocooler head and resistive SFCL equiped with temperature sensors 

helium compressor unit



Vacuum pump

 



Dewar

50dm3 dewar



LTS coils

LTS coils 6.2 T

LTS coils for magnetic separation

 

winding process of LTS coil



HTS Tapes

 

 

critical current 60 A silver matrix    -     critical current 125 A steel matrix



Winding machine

 

project     -     design

 

HTS tape winding     -     copper coil winding process

 

secondary winding of HTS transformer

Primary winding of SFCL2500A



Inductive SFCL's

SFCL112A

 

design of SFCL with open core     -     model, primary 112 turns, secondary HTS tube Ic= 112 A

 

various cores and windings

 

 

Magnetic field distribution in superconducting and resistive state


SFCL1210A

Inductive SFCL with open core, primary winding 1200 turns, secondary winding Ic =1210 A, current lead used as secondary winding


SFCL1250A

cross -  section of Inductive SFCL with closed core

HTS Tube Ic = 1250 A at 77K

Inductive SFCL with closed core

Un = 230 V In = 0,65 A Iactivation = 1,63 A

primary - 764 turns

secondary - HTS tube BSCCO 2223 CST-60/100.2

core - RZC50/140-35, ET52-27


SFCL2500A

design of inductive SFCL with LN2 container

SFCL with closed and open core

Un = 230 V In = 1,3 A Iactivation = 3,27 A

primary - 764 turns

secondary - 2 x HTS tube BSCCO 2223 CST-60/100.2

core - RZC50/140-35, ET52-27

 

nitrogen evapuration after fault



 SFCL Controller

circuit

Zero crossing detector with delay and fault time controll for SFCL activation

 

 

delay time control     -     fault time controll

delay time = 0 - 28 ms

fault time  = 12 - 800 ms

Imax = 30 A



HTS Transformer

 

Elements of  transformer- primary , secondary cryostat.     -     HTS transformer 90 V / 90 V,  Ic = 60 A