OS Series High Voltage AC/DC Power Supplies

Input Voltage 198-264 VAC; Max. Output Voltage 200-450 kVDC; Max. Power 2,000 W; Efficiency 80%; Voltage Regulation <0.005%; Current Regulation <0.1%

XP Glassman’s OS Series of high voltage AC/DC power supplies are sophisticated 2 kW open stack, power supplies with extremely low ripple and noise. They are air insulated fast response units with tight regulation.

OS Series power supplies are designed to meet the growing demands from both users and electric utilities for switching supplies with excellent input power factors that draw harmonic currents below those specified in EN61000-3-2. A range of models is available with output voltage ranges from 0 to 200 kVDC through 0 to 450 kVDC.

OS Series models consist of a rack-style driver chassis, a high voltage stack assembly and a remote-control unit. The driver chassis is provided in a cabinet with 214.1 mm height x 573 mm depth, onto which the high voltage stack is mounted. The dimensions of the stack vary with the output voltage rating and are given in the specifications in the downloadable datasheet. The rack-mountable remote control provides all interface functions and is connected to the driver chassis with the 7.6 m long cables provided. The remote-control unit size is 132.5 mm height x 127 mm depth.

Active correction circuitry (power factor correction, PFC) achieves an input line current harmonic content well below the maximum specified in EN61000-3-2. The OS series features “air” as the primary dielectric medium. No oil or encapsulation is used which would impede serviceability or increase weight.

Internal circuitry constantly senses and integrates arcs that occur over a given time. In the event a system or load arcing problem develops and exceeds factory-set parameters, the power supply will cycle off in an attempt to clear the fault and then automatically restart after a preset “off dwell time”. The OS Series’ high voltage output is inhibited for a short period after each load arc to help extinguish the arc.

Typically, ripple is less than 0.05% peak-to-peak of rated voltage at full load. Off-the-line pulse-width modulation (PWM) provides high efficiency and a reduced parts count for improved reliability. The OS Series’ standard operation mode is constant voltage/current. Automatic crossover from constant-voltage to constant-current regulation provides protection against overloads, arcs and short circuits. A current-trip feature may be substituted for constant-current operation by a remote-control chassis rear panel selector switch.

Standard accessories for the KT Series include a detachable 2,4 m shielded high voltage coaxial output cable, line cord, null modem cable and USB cable.

The OS Series supplies are fully compliant with the following European directives:

• EN61010/ IEC61010, Safety
• EN61000-6-4, Conducted and Radiated Emissions
• EN61000-6-2:2005, Conducted and Radiated Immunity
• 2011/65/EU, Restriction of the Use of Hazardous Substances (RoHS)

Key Features:

• Open Stack High Voltage
• Rack-mountable Remote-control Panel
• Air Insulated
• Maximum Output Power: 2000 W
• Maximum Output Voltage: 200 to 450 kVDC
• Maximum Output Current: 3 to 10 mA
• Low Ripple: 100 to 225 Vpp High Frequency Ripple, 10 to 22.5 Vpp Line Frequency Ripple
• Tight Regulation
• Voltage Regulation: <0.005% for Specified Line and Load Variations
• Current Regulation: <±0.005% for Specified Line Variations and 0.1% From Short Circuit to Rated Voltage at Any Load Condition
• Constant Voltage/Constant Current Operation
• Arc Quench & Arc Count
• Front Panel 10-turn Potentiometer and 0 to 10 V Remote Control
• Input Voltage: 198 to 264 VAC RMS, 48 to 63 Hz, Single Phase
• Efficiency: 80% Typical at Full Load, Power Factor >0.995
• Output Voltage Accuracy: 0.5% of Setting + 0.2% of Rated
• Maximum Stored Energy: 70 to 150 J
• Voltage Monitor: 0 to +10 VDC Signal for 0 to Rated Voltage
• Current Monitor: 0 to +10 VDC Signal for 0 to Rated Current
• Stability: 0.01%/h After 0.5 h Warm-up, 0.05% per 8 h
• Protection: Against All Overload Conditions, Including Arcs and Short Circuits
• Signals Provided on the Remote User Interface Terminal Strip: Safety Interlock, Voltage & Current Program/Monitor, HV Enable, HV Status
• Options: Zero Start Interlock, Slow Start Ramp, 0 to 5 V Voltage & Current Program/Monitor, Control and Monitor via RS232, USB, Ethernet
• 3 Year Warranty
• Approvals: IEC61010-1:2010; EN61000-6-4:2007, Class A EN61000-6-2:2005
• Operating Temperature: -20 to +40 °C
• Dimensions: See Downloadable Datasheet

Applications: High Voltage, High Power Applications; Photonics; Healthcare (Analytical, Diagnostics, Detectors); Industrial; Semiconductor Manufacturing; Research; Other