Series OL20K0 pages

Series OL20K

20kW HIGH VOLTAGE POWER SUPPLY

FEATURES
20kW of output power
Output voltages from 60kV to over 200kV
Positive or Negative polarity to order
Robust IGBT converter design
Exceptional reliability
High Stability
Excellent inherent ruggedness
Arc Count and Extinguish (ACE) option
Marked
DESCRIPTION
The Series OL20K is a range of high reliability products designed to
meet the rigorous requirements of ion and electron beam systems.
These high performance switch mode systems are based on a power
converter using zero-volt switching. A full bridge of the latest
generation of Insulated Gate Bipolar Transistors (IGBTs) in a fully
regulated closed-loop system capable of continuously supplying up
to 20kW of output power whilst maintaining flexible control down to
a few hundred Watts. These highly reliable rugged systems comprise
two units, a rack mounting power converter through which remote
controls are facilitated, and a separate HV unit employing a modular
disc construction. Numerous features are incorporated to ensure
system integrity is maintained during adverse operating conditions.
Such features include continuous primary current monitoring with
fast pulse truncation and soft recovery, extensive thermal monitoring
and automatic shutdown on key components, passive output current
limiting for instantaneous surge control and independent output
overvoltage sensing. Optionally HiTek Power’s Arc Count and
Extinguish (ACE) system can be installed for active arc management.

SPECIFICATION
Output Power:
20kW maximum at full rated output voltage and current.

Input Voltage:
208VAC ±10% (187VAC to 229VAC) 47-63Hz 3 phase via three M8 studs,
and earth, via M10 stud at 87A rms per phase.
OR
400VAC ±10% (360VAC to 440VAC) 47-63Hz 3 phase via three M6 studs,
and earth, via M8 stud 45A rms per phase.
Polarity:
Positive or negative to order.
Minimum Voltage:
5% of rated output voltage. The unit may be turned down below this but
the specifications are not guaranteed below this level.
Line Regulation:
Less than 0.1% change in output voltage for a 10% change in mains
voltage.
Load Regulation:
Less than 0.1% of rated output voltage for a full load change.
Ripple:
Less than 0.1% peak to peak of rated output voltage.

Output Voltage:
Units available with maximum output voltages from 60kV to 200kV.

Transient Response:
The output will recover to within ±1% of set value in less than 100ms
from the removal of a short circuit.

Output Current:
Up to 250mA for 60kV and 80mA for 200kV.

Temperature Coefficient:
200ppm/oC (0.02%/oC).

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