Product information "LQ Series High Voltage AC/DC Power Supplies"
Input Voltage 180-530 VAC 3-Phase; Max. Output Voltage 1-12 kVDC; Max. Power 10,000, 20,000 W; Efficiency >85%; Voltage Regulation <0.05%; Current Regulation <0.5%
XP Glassman’s LQ Series are sophisticated 10 or 20 kW high voltage AC/DC power supplies with low ripple and noise. They are air insulated, fast response, 5U rack-mount units with tight. A broad range of models is available with output voltage ranges from 0 to 1 kVDC through 0 to 12 kVDC. LQ power supplies can be paralleled, utilizing one master supply and up to four slave supplies for a maximum of 50 kW output power.
The LQ Series features “air” as the primary dielectric medium. No oil or encapsulation is used to 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 LQ Series’ high voltage output is inhibited for a short period after each load arc to quickly extinguish the arc.
Typically, ripple is less than 0.1% RMS 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 LQ Series’ front panel contains all local control functions like AC power on/off, separate 10-turn controls to set voltage and current levels, HV voltage on and off/reset switches as well as LED indicators for high voltage on, output polarity, interlock, fault status or voltage/current regulating mode. Output levels are indicated by voltage and current digital meters.
The LQ 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 rear panel switch allows selection of either constant-current or current-trip operation. Thermostats and fan RPM sensing shut down the power supply due to over-temperature or reduced fan speeds.
Standard accessories for the LQ Series include a detachable 2,4 m shielded high voltage coaxial output cable and a 25-pin D-subminiature connector for customer interface.
The LQ Series supplies are fully compliant with the following European harmonized EMI 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)
5U Rack Mount
Maximum Output Power: 10, 20 kW – Parallelable to 50 kW
Maximum Output Voltage: 1 to 12 kVDC
Maximum Output Current: 0.85 to 20 A
Low Ripple: <0.1% + 1 V RMS of Rated Output Voltage
Voltage Regulation: <±0.05% for Specified Line and Load Variations
Current Regulation: <0.5% From Short Circuit to Rated Voltage at Any Load Condition
Constant Voltage/Constant Current Operation
Arc Quench & Arc Count
Front Panel, Remote, RS232, USB & Optional Ethernet Control
Input Voltage: 180 to 220, 342 to 440, 370 to 460, 430 to 530 VAC RMS, 48 to 63 Hz, Three Phase
Efficiency: >85% Typical at Full Load
Output Voltage Accuracy: 1% of Setting + 0.5% of Rated
Output Voltage Repeatability: <0.1% of Setting
Stored Energy: 6 to 22 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
Polarity: Positive or Negative Polarity With Respect to Chassis Ground
Protection: Against All Overload Conditions, Including Arcs and Short Circuits
Signals Provided on the Remote Interface Connector: Safety Interlock, Voltage & Current Program/Monitor, HV Enable/Status, Fault Status, +10 V Reference, I/V Mode Status
Options: 0 to 5 V Voltage & Current Program/Monitor, Blank Front Panel, Slow Start Ramp, Zero Start Interlock, 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: 221.5 x 482.6 x 609.6 mm
Applications: High Voltage, High Power Applications; Photonics; Healthcare (Analytical, Diagnostics, Detectors); Industrial; Semiconductor Manufacturing; Research; Other
High Voltage AC/DC Power Supplies
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