AKGRAD32
Power controller
Thyristor / SCR Power Controller
60V to 690V AC - 30A to 2500A
- Power regulation with best accuracy 32bits processor
- ModbusTCP / Modbus RTU / Profibus / Ethernet-IP / Profinet
- Easy to install
- Operator Interface HMI 4" front panel all languages
- One control board for all equipments
- Synchronisation integrated feature allows power savings
- Energy efficiency
- Gradathyr and AKGRAD plug and play retrofit






AKGRAD32 : Thyristor / SCR Power controller
Firing modes:
1P / 3P Power control with permanent phase angle with current limitation with or without downstream transformer,
1P / 2P / 3P Power control with permanent Fast Full Wave with phase angle soft-start with or without downstream transformer.
Features:
The 32bits DSP of the AKGrad32 measures and calculates true RMS mains voltage V, current A, power kW and resistor OHM for each phase.
This powerful energy management unit enables:
- Patented soft-start firing for any inductive downstream transformer which avoid over current peaks even in cost saving 2-Phases Control.
- Unique integrated power savings “SYNCHRO” feature for real-time load management.
- Very high accuracy closed loop kW-%-I²-U² regulation with partial/total load failure diagnosis on each phase.
- Instantaneous adaption to voltage variations, over currents due to short circuit to ground or load surge.
- Phase-Angle soft start for heaters with high cold/hot variations with current limit feature (Molybdenum, SiC, etc.)
Current Range | A | 100A | 150A | 230A | 330A | 420A | 600A |
1P: Single Phase | Wmm | 175 | 175 | 175 | 175 | 267 | 267 |
Lmm | 300 | 300 | 300 | 300 | 436 | 436 | |
Dmm | 235 | 235 | 235 | 235 | 300 | 300 | |
2P: 2 Arms 3 phases | Wmm | 175 | 175 | 175 | 175 | 267 | 537 |
Lmm | 250 | 300 | 300 | 300 | 436 | 575 | |
Dmm | 235 | 235 | 235 | 235 | 300 | 385 | |
3P: 3 Arms 3 phases | Wmm | 175 | 267 | 267 | 267 | 267 |
537 |
Lmm | 300 | 436 | 436 | 436 | 436 | 575 | |
Dmm | 235 | 300 | 300 | 300 | 300 | 385 |