◆Start the power generation operation process after checking the safety;
◆Constant water level operation: automatically turn on and off according to the water level, automatically adjust the active power of the unit; automatically adjust the reactive power;
◆After the unit is started, the excitation will be started automatically, and the grid voltage will be automatically tracked after the excitation is started. There are three excitation modes when running with load: constant power factor, constant voltage, and constant excitation Operation; no-load V/F given characteristics, long-term low-speed standby, to ensure that the excitation current will not be large; grid-connected constant power factor operation function, no need to manually adjust the excitation regardless of load addition or reduction; load rejection automatic voltage regulation function, When tripping with load, there is no need to manually adjust the excitation.
◆The detection frequency, voltage, and angle conform to the standard with high precision, no impact, and quick capture. The first suitable grid connection will automatically connect to the grid at the same time, and automatically press the setting after the grid is connected. power factor value;
◆Eight-channel temperature inspection and alarm protection;
◆Unit speed control, runaway protection, current quick-break protection, current overcurrent inverse limit protection, reverse power protection, overload protection, minimum power protection;< br /> ◆Under voltage protection, over voltage protection, low frequency protection, over frequency protection, circuit breaker fault protection;
◆Automatic identification of shutdown process and de-excitation control; brake control, gate valve control;
◆The current day, the current month, the cumulative active power metering, reactive power metering;
◆Fault record; accumulated running time, automatic meter reading record of all power generation parameters every ten minutes and saved permanently;
◆The design of the automation screen is suitable for the selection of six operation and power adjustment modes of the hydropower station;
1. Smart power generation mode: Automatically adjust power according to the water level of the front pool, that is, according to the water level, automatically increase or decrease the load, multi-units cooperate to generate power, always maintain a high water level operation, and indirectly increase The water head increases the power generation.
2. Press the potentiometer to adjust power, which refers to manually adjusting the external knob potentiometer to set the target power to generate electricity.
3. Manual power adjustment, that is, adding and subtracting water by manual button to adjust the power generation.
4. Computer remote target power: The target power is set by remote communication to generate electricity.
5. Remote target opening of computer: The target opening is set by remote communication to generate electricity.
6. The power stations that are assessed during peak and valley periods can be flexibly set to generate electricity at regular intervals and in different time periods to maximize power generation benefits.
◆The system conducts AC sampling and measurement on the frequency, voltage and phase of the power grid and the generator set, and can only be connected to the grid when certain grid-connected conditions are met. Otherwise, the inrush current will be too large, and the instantaneous drop of the grid voltage at the parallel point may cause damage to the unit. Adjust according to the deviation to control the closing time. The frequency measurement of the unit is the residual pressure frequency measurement method.
◆This automation adopts very good lightning protection measures. When lightning and surges other than non-direct lightning strikes are serious, the damage to the system is minimized and will not cause fatal damage.
◆ This integrated screen is also equipped with a semi-automatic power generation system: automatic switch is converted to manual gear, one-key excitation starts, and one set for standby is connected to the grid at the same time, and one set for standby is integrated. The protection and the fully automatic dual power generation system are mutually backup for emergency power generation.
◆It does not have high requirements for the quality of the staff of the power station, the structure of the automatic control panel is simple "fool-like design", modular integration, easy to maintain in the future, and the plug-in type is used for changing the core module , as simple as changing a mobile phone battery.
◆Configure the powerful functions of the communication module, which can expand long-distance monitoring and control at any time.
◆This automation screen can additionally expand the practical functions of the power station such as optional cooling water, air pressure, oil level, automatic brake, automatic switch main valve, main transformer control loss reduction and so on.
◆This automation adopts very good lightning protection measures. When the lightning surge is serious, the damage to the system can be reduced at most, and it can be repaired quickly and at low cost, except for direct lightning strikes from the front.
