Filament Power Supplies
Regulated AC Floating Power Supply
10V to 100V AC,50W Floating On 10kV to 150kV
This series of power supplies can generate AC voltage floating at high voltage and are generally used to heat the filament of the cathode of a gyratron tube. These power supplies are housed in Compact cabinets with wheels for ease of Operation.
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TECHNICAL SPECIFICATIONS
| PARAMETER | SPECIFICATION |
|---|---|
| Input Voltage | 230V ±10% A C, 50Hz, Single Phase for output power ≤ 2kW 415V ±10% A C, 50Hz, three Phase for output power > 2kW |
| Output Voltage Range* | 10V to 100V AC (variable), single phase, 50Hz, sine wave |
| Output Power Range* | 50W to 5kW |
| DC Isolation* | 10kV to 150kV DC |
| Output Waveform | Sine wave floating on high voltage DC isolation |
| Type of Primary Control | Linear (sine wave) |
| Line Regulation | 1% for 10% variation in input voltage |
| Load Regulation | ±1% for 0 to 100% load variation |
| Regulating Mode | Constant voltage or constant current selectable through a selector switch in front panel at ground level |
| Leakage Current Through Transformer Secondary to Ground & Primary | < 200µA |
| Rate of Rise of Floating AC Voltage* | 1V/second to 1V/ minute |
| Current Sensing | Through load floating on DC isolation |
| Protections | Against over load, short-circuit and arc During short circuit, power supply trips & to be manually reset to restart |
| Mode of Operation | Local or remote selectable through a selector switch in front panel at ground level |
| Front Panel | Power ON/OFF switch with indication Push buttons for power supply start & stop Rotary push switch for emergency trip Push button for trip reset 3½ dig it rms voltage and rms current meters 10-turn potentiometer for voltage rise control 10-turn potentiometers for over voltage & over current trip level setting Selector switch for Local / Remote selection Selector switch for regulating mode selection Constant voltage – constant current mode indication |
| Back Panel | Socket for mains input with 250V, 20A 3 conductor power cord of 1.5 meters / terminal block for 3 phase input Fuse holder with fuse Pluggable connectors for remote control stud for grounding the unit |
| Remote Controls & Signals (all at ground level) | Power supply ON/OFF Reference 10V DC signal 0-10V DC for voltage rise control 0-10V DC FSD for rms voltage monitor 0-10VDC FSD for rms current monitor |
| Cabinet | MS cabinet with wheels, powder coated |