The main function

SD9000-L-W3 microcomputer excitation regulator for three-phase four-wire system, the voltage is 100/400 volts, frequency 50HZ high and low voltage brushless excitation synchronous generator excitation regulation, to meet the generator stand-alone, Of the operating requirements. It is also suitab le for excitation regulation of low-voltage synchronous generators in DC exciter mode.

SD9000-L-W3 microcomputer excitation regulator simple structure, sensitive and stab le regulation.

According to the machine rectifier circuit is divided into two types.

SD9000-L-W3 half-bridge type, single-phase half-wave rectifier circuit, the output voltage of 0 ~ 102VDC, for rated excitation voltage 90V, rated excitation current 20A below the generator.

SD9000-L-W3 full-bridge type, single-phase half-controlled bridge rectifier circuit, the output voltage of 0 ~ 205VDC, for rated excitation voltage 180V, rated excitation current 20A below the generator.

Performance characteristics

* Generator frequency / voltage / conduction angle / given value, digital display.

* The run value is given with the keypad.

* Convenient start-up, build pressure fast, save time and grid.

* Trigger pulse stability, good symmetry

* On-line variable gain PID regulation law, make the adjustment process fast and stab le.

* Software and hardware anti-interference, program self-recovery function.

* Regulator with single-chip microcomputer control, reliable operation, simple operation, easy maintenance.

* There are two operating modes available for user to choose: constant voltage mode and constant current mode

Technical Parameters

Regulating range: 70V ~ 490V

Voltage regulation accuracy: better than 0.5%

Adjustment: about + 8%

Frequency characteristics: the frequency of each change of 1%, the generator terminal voltage variation is less than ± 0.1% of rated value.

Zero from the boost: overshoot less than 10% to 15%, regulation time "~ 5 seconds, the number of oscillation 3 to 5 times.

10% step response: overshoot less than 5%, the number of oscillation 1, the adjustment time is less than 5 seconds.

Rejected reactive load: overshoot less than 15% Ue, the number of oscillation less than 3 times, the adjustment time is less than 5 seconds.

Voltage setting speed of change: (0.3% ~ 1%) / sec.

Electrical parameters display accuracy: 1V.

Strongly excited parameters: machine terminal voltage dr ops, automatically enter the strong excitation.

Thyristor control angular resolution: 0.036 degrees.