Glassman Europe announces a new range of programmable, DC-regulated power supplies, the GX Series, its most powerful to date. The GX Series is a highly-specified family of 25 kW to 200 kW fast-response, air-insulated power supplies, boasting tight regulation combined with low ripple and noise. This comprehensive range has 19 models in all, from 0 to 1 kV through to 0 to 100 kV. Individual units can be set up in a master/slave configuration to produce a maximum output capability of 200 kW.
Input for the rack-mountable GX Series is 480 VAC 3-phase as standard, with 380VAC and 415VAC input available as an option. The units feature a microcontroller-based front panel control and communication interface, and there are also integral RS232/USB serial ports as standard, plus an optional Ethernet interface, which enables high-resolution voltage and current programming either on-site via the front panel digital encoders or via the analogue remote interface. A time-saving Last Setting Memory feature stores power supply parameters at each AC turn-off sequence, saving time. The constant voltage/constant current operation feature utilises automatic crossover between the two to protect against overloads, arcs and short circuits.
Adjustment between constant current and current trip is easily selected via a rear panel switch. Output features continuous, stable adjustment from zero to rated voltage or current by panel-mounted optical rotary encode or by external 0 to +10 V signals. Efficiency is typically greater than 80 percent at full load and ripple typically less than 0.1 percent RMS of rated voltage at full load. To prevent arcing, GX Series power supplies feature both arc quenching and an automatic arc count. The HV output is inhibited after each load arc and internal circuitry continually senses and integrates arcs that occur over a given time period–should the system or load arcing exceed factory-set parameters, the unit automatically cycles off, clears the fault and re-starts after a set time period.
In line with Glassman’s outstanding reputation for reliability, the GX Series features the company’s proprietary forced-air cooling system, with redundant thermal overload protection incorporating temperature sensing and a fan speed monitor. Being air-insulated, rather than encapsulated or oil insulated, the GX Series is lighter in weight and easier to service than competing power supplies. The GX Series models are available now, supplied with a three-year warranty for standard versions; with OEM and modified models warranted for one year.