HARDWARE BASED OPTIONS
BFP - Blank Front Panel
HS - High Stability
LL(X) - High Voltage Cable Length
1PH - 180-264Vac, Single Phase Input
SOFTWARE CONFIGURABLE FEATURES
Adjustable Overload Trip
Arc Trip Count
Arc Quench Time
Arc Re-Ramp Time
Constant Power Control
Adjustable Power Trip
Slow Start Ramp Times
Standard: 180-264Vac, 50/60Hz, three phase, 90% efficiency, 0.85 power factor
Optional: 180-264Vac 50/60Hz, single phase (1PH)
Standard: 180-264Vac, three phase 17 amps, maximum
Optional: 180-264Vac, single phase 38 amps, maximum
15 models from 1kV to 70kV. Each model is available
with positive or negative outputs.
Local Output Controls:
Voltage and current are continuously adjustable over entire range via ten-turn potentiometers with lockable counting dials.
Load: 0.05% of full voltage +500mV for full load change.
Line: 0.05%of full voltage +500mV over specified input range.
Load: 0.05% of full current ±100µA for any voltage change.
Line: 0.05% of full current over specified input range.
0.1% p-p +1Vrms
0.02%hr. after 1 hour warm-up.
100ppm/°C. Higher stability (50ppm/°C) available on special order via the HS option
Operating: 0°C to 40°C
Storage: -40°C to 85°C
10% to 90% RH, non-condensing.
Forced air; inlet through side panels, outlet at rear panel
Digital voltage and current meters, accurate to within 1%
System Status Display:
“Dead Front” type indicators provide status of up to 12 system operations including voltage and current regulation, fault conditions and circuit control.
Analog Interface Connector:
50 pin female D connector
High Voltage Output Cable:
A detachable 10’ (3.05m) long shielded HV cable is provided
1kV to 70kV: 5.25. (3U)H X 19. W X 21. D (133mm x 482mm x 533mm)
1kV to 8kV: 46 lbs. (20.87kg)
10kV to 70kV: 58 lbs. (26.31kg)
Individual kV models may vary
2004/108/EC, the EMC Directive and 2006/95/EC, the Low Voltage Directive. RoHS compliant.
The STA features a standard RS-232 and Ethernet digital interface. Utilizing these standard digital interfaces can dramatically simplify power supply interfacing requirements saving the user both time and money, while enhancing functionality and overall capability. Spellman provides a GUI with the STA that allows the customer to both customize operational features of the STA while also providing basic power supply operational features. Details of the STA’s digital interface capability are described in the STA manual, downloadable via the link on the first page of this data sheet.
Spellman’s STA power supplies have an arc intervention feature that senses arc currents via a fast acting current sense transformer. The purpose of the arc intervention circuitry is to prevent power supply damage from continuous, long term arcing. The factory default configuration will trip off the unit with an Arc Fault if 4 arcs occur in a 10 second time period. Customers can change basic arc intervention parameters (Arc Count, Arc Quench, Reramp Time, and Window Time) within preset limits via the digital interface; customized units can be provided for unique arc prone environments, contact Spellman for details.
STA rear panel shown with local operation plug
installed in 50 pin D connector