Facilities

The HTS application critical current and AC losses electrical measurement rig

 

DC power supply

 

3000 A step-down transformer

 

National Instruments Data Acquisition log

 

Lock-in amplifier

 

Power amplifier

 
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For DC mode, The measurement rig is able to measure critical current up to 180 A DC for HTS coil and up to 2000 A DC for large scale HTS applications, such as HTS transmission cable.

 

For AC mode, the measurement rig is able to measure AC loss up to 3000 A AC with frequency range of 1 300 Hz for various HTS applications used in AC case. The compensation methods based on the Labview with National Instrument data acquisition log setup and Lock-in amplifier setup are both implemented.

 

HTS sample testing rig under background magnetic field

 

DC power supply: 28 A 220 V

 

0 3 T Gauss meter

 

Lab Water Chiller

 
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YBCO sample testing under 0 700mT background field @ 0 360 rotatable degree

 

 

DC electromagnetic field pole head pairs:

u  Hmax ≥ 2.6T at 5mm air gap

u  Hmax ≥ 0.7T at 10cm air gap

 
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