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Generator Automatic Voltage Regulator AVR NTA-4A-2DD

NTA-4A-2DD
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Generator AVR Automatic Voltage Regulator AVR NTA-4A-2DD

Input

  • Three-phase AC input, voltage range: 170–520 VAC.
  • Supports self-excitation start-up (residual voltage ≥ 5 VAC/30Hz triggers start-up).
  • Compatible with 50Hz/60Hz systems (switchable via configuration).

Output

  • DC excitation output: Continuous current up to 4 A; instantaneous peak current 12 A (≤ 10 seconds).
  • Output voltage range: 65–130 VDC (dynamically adjusts with generator speed/load).

Regulation

  • Steady-state voltage regulation: ≤ ±0.5% RMS.
  • Dynamic response: Recovery time ≤ 280 ms (when voltage drops to 90% of rated value).

Protection

  • Built-in over-excitation protection, short-circuit current limitation, under-voltage/over-voltage protection, and over-temperature protection.

Environment

  • Epoxy resin potting, protection class IP20 (dust and moisture resistant).
  • Operating temperature range: -40℃ to +65℃.
 

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