This power supply was developed and designed by Power Engineering Department for national basic scientific project BEPCII (Beijing Electron Positron Collider upgrade and expansion project), which is undertaken by the Institute of High Energy Physics, Chinese Academy of Sciences
The superconducting magnet power supply and quench protection circuit in collision area will be used in the protections of excitation and after quench for superconducting magnet installed inner spectrometer of storage ring
Overall technology of this equipment (including superconducting magnet, power supply and quench protection circuit) is first practically applied in high-tech field in China
Superconducting magnet power supply and quench protection circuit is one of the most critical equipment for collider
Features:
Low voltage, large current output- Heavy inductive loads
Current adjustment (up/down) rate limit
Quench protection (quench protection) and quench protection connector Chassis (QPAIC)- Crowbar part design of loss-power failure
Grounding high suspension voltage
Low current ripple - unloading and winding heating after the energy quench
Main technical indicators: (PS1250A example)
Load inductance: 80mH
Output voltage: 10V
Voltage ripple: <3 x 10 to 4
8 hours current stability: <1 x 10－4 (20 to 100%) Iop
Response time of quench protector: <20ms
Vent time: <600ms
Delay time: <10us
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Supplier and product information updated May 18, 2012.
Verified Business Registration Details
Registered Company:
兰州长城电工股份有限公司
Business Registration Number: 620000000006714（3-1）
Company Registration Address: 兰州市城关区农民巷215号 * In some jurisdictions, company names and addresses are registered in Chinese only.
