2 Electrical Wiring

2.1 Cryostat Wiring

SYMMETRIC ENERGISATION (8/9 TESLA)

Coaxial current lead terminal on tall cryostat services neck (this neck also features the VTI needle valve):

• Inner terminal post I+ (start of entire magnet, internal red wire)
• Outer terminal post I- (end of entire magnet, internal black wire)

ASYMMETRIC ENERGISATION (4 TESLA)

Co-axial current lead terminal on short cryostat services neck (this neck also features the syphon entry port):

• Inner terminal post I+ (start of selected coils, internal blue wire)
• Outer terminal post I+ (end of selected coils, internal brown wire)

Ten pin connector on services neck with syphon entry:

• Connections to persistent mode switch heaters

Ten pin connector on services neck with lambda point refrigerator needle valve and pumping line:

• Connections to carbon resistors for monitoring lambda point refrigerator.

Ten pin connector on services neck with VTI needle valve:

• Connections to helium level probe.

VTI WIRING.

Ten pin connectors on VTI top plate:

• VTI heat exchanger thermometry and non-inductive heater.

Ten pin connector on cryostat top plate:

• Heater and carbon resistor for clearing VTI needle valve blockages.

Five pin connector on services neck with motor drive:

• Auto-needle valve control for the VTI. (not mounted).

Original Risų Cabling:

2.2 Magnet Winding