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In traditional hydropower stations, many operators are required, the operation steps are cumbersome, and there are certain technical requirements for operators. After using this product now, it can reduce the number of operators and greatly reduce the operation steps. It only needs one key to switch...
◆ Automatic speed regulation after one-key start the turbine.
◆ Automatic excitation when the frequency reaches the set value.
◆ The circuit breaker automatically stores energy when the frequency reaches the set value.
◆Ensure to capture the first time of grid connection, accurate, fast and reliable shock-free grid connection .
◆One-key shutdown, the load is reduced to zero and the circuit breaker will automatically trip
◆AutomaticallyTrack the grid frequency and lock when the grid is offline50Hz. For the hydraulic speed governor and the speed governor controlled by the DC servo motor, the parameter 9,11 frequency modulation pulse width can be set smaller, and the frequency modulation pulse width can be set smaller for the speed controller controlled by the ordinary AC motor. The speed controller should set the pulse width of parameters 9 and 11 to be larger. For a system with a smaller moment of inertia, the frequency modulation interval of parameter 10 can be set smaller, and vice versa.
◆ This unit has various fault detection functions:
(A) Grid disconnection (grid voltage and frequency are displayed as < span style="font-size:18px;">0, the fault indication lasts for 76 seconds)
（B) The generator is offline (the generator voltage and frequency are displayed as 0, failure indication continues)
(C) Grid frequency deviation>3Hz (see grid frequency display, fault indication continues)
(D) Generator frequency deviation>5Hz (except when starting, see display, fault indication persists)
(E) The grid voltage is abnormal (over, under voltage, refer to the grid voltage display, the fault indication continues, the fault relay acts)
(F) generator overvoltage (see generator voltage display, fault indication continues, fault relay action)
These faults are not allowed to issue a synchronous closing command.
◆parameters0 0, input voltage400V/100VSelect, the parameter content is displayed asU400/ U100, use the plus (minus) key to select it to match the input voltage value, the factory setting100V.
◆ parameters01, shutdown selection, the parameter content is displayed as 01/dF00(Off-line demagnetization), 01/dF50(Off Hydro Column Stability50HZ )The factory setting is dF00.
◆ parameters02, select closing method, Automatic closing/manual approval, displayed asHEAU/HE--, The factory setting is automatic closing, displayed asHEAU.
◆ parameters03, no pressure closing option, displayed asHUYY/HU< /span>nO, the factory setting is not allowed, displayed as HUYY.
◆Parameters0 4, the leading time setting, the setting range is 0 .1S ~2.0S, set the precision to < span style="font-size:18px;">0.01 S. The lead time is used to compensate for a series of delays from the close command of the quasi-synchronized device to the actual closing. The factory setting is 0.2S.
◆Parameters0 5, the allowable voltage difference setting, the setting range is 2% of the rated voltage ～10% (Line mode is 2%~18%). Set the precision to 0.1%. In the generator mode, the system will adjust the positive bias according to this set value (the positive deviation is 1 of the set value.5 times, the negative difference is the set value0.5 times), the factory setting is 2% .
◆ parameters06, the allowable frequency difference setting, the setting range is ±0. 05Hz～±0.6Hz. Set the precision to 0.01Hz, the factory setting is 0.
