SD9000-LE microcomputer brush excitation device can be applied to a variety of SCR rectifier excitation (zero, three-phase half-controlled bridge, three-phase full control bridge, single-phase half-controlled bridge, single-phase full control bridge and AC exciter mode ), Strong function, reliable performance.

Features:

1, from the excitation, the regulator to adjust the terminal voltage of 100% ue (ie 380V).

2, circuit breaker tripping to prevent over-voltage unit, the terminal voltage of 380V (using full-controlled bridge mode, the best performance)

3, to prevent low-frequency over-current function, when the frequency is lower than 40HZ, the automatic shutdown thyristor. Improve unit safety.

4, ultra-bright digital display of the machine frequency, convenient and intuitive.

5, the regulator uses dual power supply, running in the plant if the electricity disappears, you can rely on the power supply to continue working.

Technical Parameters:

1, pressure regulating range: (30% -130%) Ue

2, high-pressure accuracy: better than 0.5%

3, the height difference coefficient: +8%

4, the frequency characteristics: 1% change in frequency, the generator terminal voltage change <0.1% Ue.

5, zero from the boost: high volume <10% -15%, adjust the time 3-5 seconds, the number of oscillation 3-5 seconds.

6,10% Step response: overshoot <5%, the number of oscillation 1, the adjustment time <3 seconds.

7, rejection of the rated reactive load: overshoot <15% Ue, the number of oscillation <3 times, the adjustment time <5 seconds.

8, SCR control angular resolution: 0.036 degrees.

9, strong excitation bit> 1.3 times.