ELECTRUM TECHNICAL SPECIFICATIONS

JPEG images of Electrum's current waveforms are available here.

PRIME POWER REQUIREMENTS - 130kW

Main Transformers and Rotary Gap - 400VAC, 3PH, 200A, 50Hz, ~0.8PF

Control System - 230VAC, 1PH, 10A, 50Hz

HVDC SUPPLY

DC Output - 22,000V (star configuration), 12,700V (delta configuration)

DC Output current - 5.5A RMS (max), 8.3A pk

Charging Reactor - 2H, 8.3A, 23kVDC

Final primary charge voltage - 44kVDC (max)

PRIMARY DRIVE CIRCUIT

Cpri = 0.270µF, nominal

Lpri = 66.7µH (tap#9) nominal, 55.6µH (tap#8), 78.7µH (tap#10)

Zpri = 15.5 ohms, nominal

Ipri (pk) = 2800A

Primary Switch - 8 gap series rotary, adjustable speed to 350 BPS

SECONDARY COIL TOWER STRUCTURE

Coilform - 36.5" x 154", 780 turns of #12 AWG polyolefin motor lead wire

Lsec = 0.130H

Fsec = 37.92kHz (w/7' spherical electrode), 52.60kHz (no electrode)

Isec (pk) = 61A, with full primary voltage at 38kHz

Top electrode - 7' dia sphere, SS304, finite element cage construction

Total tower weight - 3700 lbs

Total tower height - 38' 8"