Design and preliminary test results of the 40 MW power supply at the National High Magnetic Field Laboratory
- Los Alamos National Lab., NM (United States)
- ABB Drives Inc., New Berlin, WI (United States)
- National High Magnetic Field Lab., Tallahassee, FL (United States)
- Alpha Scientific Electronics Inc., Hayward, CA (United States)
Four highly stabilized, steady-state, 10 MW power supplies have been installed at the National High Magnetic Field Laboratory in Tallahassee, FL. Each supply consists of a 12.5 kV vacuum circuit breaker, two three-winding, step-down transformers, a 24-pulse rectifier with interphase reactors and freewheeling diodes, and a passive and an active filter. Two different transformer tap settings allow dc supply output voltages of 400 and 500 V. The rated current of a supply is 17 kA and each supply has a one hour overload capability of 20 kA. The power supply output bus system, including a reversing switch at the input and 2 {times} 16 disconnect switches at the output, connects each supply to 16 different magnet cells. The design of the power supply is described and preliminary test results with a supply feeding a 10 MW resistive load are presented.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- National Science Foundation, Washington, DC (United States); Florida State Energy Office, Tallahassee, FL (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10193776
- Report Number(s):
- LA-UR-93-3715; CONF-930926-20; ON: DE94002696; TRN: 93:025705
- Resource Relation:
- Conference: 13. international conference on magnet technology,Victoria (Canada),20-24 Sep 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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