AKGRAD32

Power controller

Thyristor / SCR Power Controller
220V to 690V AC - 100A to 600A

  • Measurements display
  • ModbusTCP / Modbus RTU / Profibus
  • Easy to install
  • Maintenance and Retrofit easy
  • One card for all equipments
  • Synchronisation allow power factor correction
  • Energy saving
  • Gradathyr retrofit
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thyristor power control
thyristor power control
scr power control
scr power control
thyristor power controller
thyristor power controller

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:

  1. Patented soft-start firing for any inductive downstream transformer which avoid over current peaks even in cost saving 2-Phases Control.
  2. Unique integrated power savings “SYNCHRO” feature for real-time load management.
  3. Very high accuracy closed loop kW-%-I²-U² regulation with partial/total load failure diagnosis on each phase.
  4. Instantaneous adaption to voltage variations, over currents due to short circuit to ground or load surge.
  5. Phase-Angle soft start for heaters with high cold/hot variations with current limit feature (Molybdenum, etc.)

Range:

Current Range A 100A 150A 230A 330A 420A 600A
1P: Single Phase Lmm 175 175 175 293 293 375
Hmm 295 295 295 377 377 440
Pmm 228 228 228 285 285 310
2P: 2 Arms 3 phases Lmm 175 175 175 175 293 375
Hmm 295 295 295 295 377 440
Pmm 228 228 228 228 285 310
3P: 3 Arms 3 phases Lmm 175 175 175 293 293 375
Pmm 228 228 228 285 285 310