SD9000 hydr opower station low voltage unit computer excitation control screen is our company specializes in solving the low voltage unit of the hydr opower station computer excitation system design products.

The control panel is composed of SD9000-L-E microcomputer brush excitation device, thyristor rectifier circuit, excitation transformer, excitation circuit, de-excitation circuit, power element, display circuit, operating circuit and working power circuit.

Brushless excitation unit only need SD9000-L-W microcomputer brushless excitation device can be, SD9000-L-W microcomputer brushless excitation device can be placed in the automatic control screen, the user cost savings.

Technical Parameters

* Regulating range: (30% -130%) Ue

* Voltage regulation parameters: better than 0.5%

* Voltage coefficient: + 8%

* Frequency characteristics: the frequency of each change of 1%, the generator terminal voltage changes <0.1% Ue

* Zero boost: overshoot <15%, adjustment time 3 to 5 seconds, oscillation time 3 to 5 seconds

* 10% B overtake response: Ultra-over <15% Ue, the number of oscillation 1, the adjustment time <3 seconds

* Rejected reactive load: overshoot <15% Ue, the number of oscillation <3 times, the adjustment time <5 times

* SCR control angle resolution: 0.036 degrees

* Strong excitation multiplier> 1.3 times

Performance characteristics

* After Kai Li, regulator regulator terminal voltage is 100% Ue (ie 380V)

* Circuit breaker trip to prevent over-voltage unit, the terminal voltage of 380V.

* To prevent low-frequency over-current function, when the frequency is below 40HZ, the automatic shutdown thyristor, improve unit security.

* Ultra-high digital display local frequency, convenient and intuitive.

* Regulator with dual power supply, running in the factory if the electricity disappears, you can rely on the power supply to continue working.