3-Phase Controlled Rectifier Test Set (ULK-THY3)
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The ULK-THY3 System is a 3-Phase Thyristor (SCR) Rectifier designed specifically for the Power Electronics teaching environment. It provides both undergraduate and postgraduate students with a complete digitally controlled low power thyristor rectifier platform. The system has at its core a standalone Thyristor controller that interfaces to a dedicated Thyristor (SCR) based power stage. The thyristor controller contains all necessary digital and analog conditioned signals for operation as a controllable 3-phase rectifier. |
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Firing angle control is available via the front panel knobs, with an LCD to display the present operating conditions. The ULK-THY3 controller is powered from a universal single-phase input (85 - 265VAC), which is separate to the power stage connections. |
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Key Features
- User Selectable Operating Modes
- Single/Three-Phase
- Half/Full wave rectification
- User selectable thyristor firing angle
- Diode Mode
- User selectable input inductance
- Configurable half/full wave output
- Independent synchronization input
- Support for in-line clamp-on current meters
- Analog voltage and current display
- LCD Operating Status display
- Built-in protection, with relay disconnect
- Fuse Protected Power Stage
- Isolated logic interfaces
- Simple Interface
- Safety Shrouded Connectors
- Built-in software supporting all Thyristor SCR Laboratory Experiments
Specifications
| Power Stage | |
|---|---|
| Thyristor | 3 Phase Rectifier |
| Input Voltage | 0 - 415VAC |
| Input Current | 5A maximum |
| Input Phase Inductance | Selectable: 0 / 15 / 30mH |
| DC Bus Capacitance | External |
| Cooling | Fan Forced |
| Ambient Temperature | -5°C to 55°C |
| Analog Measurements | |
| Voltage (internal) | DC Bus |
| 3 Phase AC Voltages | |
| Current (internal) | DC Rectified Current |
| 3 Phase AC currents | |
| Panel Meters | 0 - 600V DC Bus Voltage |
| 0 - 10A DC Current | |
| Synchronization Input | |
| AC Phase Voltage | 380V (max) |
| Control | |
| Buttons | Start / Stop |
| Firing Angle | Multi-turn Dial |
| Mode Selection | Half/Full Wave |
| Single / Three-Phase | |
| Display | LCD |
| Interfaces | Isolated USB Serial Port |
| Programming | Isolated JTAG Interface |
| PC Support | Serial Port Display Compatible |
| Protection/Safety | |
| Fuses | 3 off - Power Stage Inputs |
| Disconnect | Input Relay Disconnect |
| Over Current | Yes - approximately 12.6A peak |
| Over Voltage | Yes - approximately 702V DC Bus |
| Connectors | Safety Shrouded 4mm Sockets |
| Mechanical | |
| Dimensions (WxLxH) mm | 30 x 420 x 300 |
| Weight | 22 |
Communications Panel
There is an alternative version with both the JTAG and Serial Port connections within the USB port.
Software
- ULK-THY3 supplied with software supporting all thyristor operating modes.
- PC based user program for Laboratory Use
- Default MCU Software image provided on support CD
- Creative Power can produce custom software variations to suit specific customer requirements.
