1000-kVA arc power supply

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5466685

Wright, R E; Barber, G C; Ponte, N S

Because of ever-increasing power demands for the development of the Oak Ridge duoPIGatron ion source, a continuous-duty arc power supply was constructed for the Medium Energy Test Facility (METF) to furnish power for the plasma generator of experimental ion sources. The power supply utilizes 12-pulse rectification with half-wave switching in a delta and wye full-wave bridge that may be connected in series or parallel. It will deliver 340 V dc, 2500 A to an ion source when series connected and 170 V dc, 5000 A when paralleled connected. Silicon-controlled rectifiers (SCR) in each rectifier bridge can be switched for pulses as short as 10 ms through continuous duty. The filter section that reduces the ripple in the output consists of an inductor-to-capacitor (L-C) filter to smooth the 720-Hz pulses. The power transformer serves as an isolation transformer allowing the secondary to be elevated to the accelerating potential of the ion source. The dc output level is controlled with a 1000-kVA auto transformer connected to the primary of the power transformer. All elevated voltages and currents are monitored at ground potential with an optical telemetry system. This paper describes the power supply in detail, including block diagrams, component specifications, and waveforms when supplying power to an ion source.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5466685
• Report Number(s): CONF-791102-166
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700203* -- Fusion Power Plant Technology-- Power Supplies
Energy Storage
700205 -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
CIRCUIT BREAKERS
DESIGN
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
ION SOURCES
PENNING ION SOURCES
PERFORMANCE
POWER SUPPLIES
SPECIFICATIONS
TRANSFORMERS