High-voltage power supply features low noise and ripple
Glassman’s LH series PSUs use air as the primary dielectric medium. Therefore weight is minimised and servicing is simple since no oil or other encapsulation is involved. The HV output is inhibited for a short period after each load arc to help extinguish the arc, and internal circuitry constantly senses and integrates arcs that occur over a given time. Should a load arcing problem develop, the power supply will cycle off, and then automatically restart. Remote control programing and monitoring is enabled via RS-232, USB or, optionally, Ethernet.
Voltage regulation is better than 0.005% for allowable line and load variations. Current regulation is better than 0.1% from short circuit to rated voltage. For higher output power, the devices can be switched in parallel: one master supply and up to four slave supplies provide a maximum of 12 to 20 kW depending on the output voltage. Off-the-line pulse-width modulation provides high efficiency and a reduced parts count for improved reliability. Automatic crossover from constant-voltage to constant-current regulation provides protection against overloads, arcs, and short circuits.
This is how the complete system looks like. One can almost smell the high voltage.
LH open stack series models consist of a rack style driver chassis, a high voltage stack assembly, and a remote control unit. Standard power supplies are warranted for three years; OEM and modified power supplies are warranted for one year.
More information: www.glassmaneurope.co.uk
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