1: Display: three-phase voltage, three-phase current, generator power, power factor, frequency, control battery voltage, floating charging current,
Run time timing.
2: Instruction: city power supply indication, generator set power supply indication, power supply indication, various types of fault alarm indication.
3: State selection: automatic/manual/test run.
1 Automatic: automatic control of quasi-state, automatic detection of the state of the mains, automatic start of the unit, automatic cast-in, automatic back-out, automatic shutdown, automatic fault trip, shutdown and alarm.
2 Manual: manual start, manual closing, opening and stopping
3 Trial operation: Under the state of the city power, the unit will be automatically operated once a week to ensure that the unit is in a good standby state.
1 Generator voltage automatic adjustment and manual fine adjustment.
Generator voltage automatic adjustment accuracy ±0.5% VE (Note: VE-rated voltage)
Generator voltage manual fine adjustment range ±0.5%VE
2 Floating charge adjustment.
0～5A float charging (for control battery) current can be adjusted.
Battery voltage DC12/24V
5: Quasi-state control system:
Automatic preheating system
Output voltage AC220V
Output power 1.5KW/set
Automatic control temperature 50～55℃ (unit temperature)
In the automatic state, the unit is always ready to start automatically when the mains power is lost. It will automatically switch to the network within ≤8S and run at full load. The unit must be in the ready state, pre-heated by the water cooling system, self-circulation, temperature automatic control, to achieve the unit temperature of 50 ~ 55 ℃.
6: Mains automatic detection:
In the automatic state, through the external switch signal, the long-term automatic detection and discrimination of the state of the commercial power. Once the mains is faulty or loses power, it can enter the automatic start state immediately.
7: The unit automatically starts, automatically casts the network, automatically withdraws from the network, and automatically stops the system:
When the unit is in the automatic state, the power failure of the city power is confirmed by the system 3S, and the unit is automatically started (starting three times is a cycle). When rated voltage
At rated speed, it will automatically switch on the grid and supply power. The power supply time of self-starting cast network ≤12S. When the city power returns to normal, confirmed by the system 3S,
The unit automatically trips and exits the network, with a delay of 3 minutes, automatically shut down, and automatically enters the next automatic start-up preparation state.
8: Automatic protection:
With overload, short circuit, high water temperature, low oil pressure, under voltage, oil high temperature, overspeed protection.
With automatic trip and stop function.
It has automatic sound and light alarms for overload, high water temperature, low oil pressure, failure to start automatically, overspeed, high oil temperature, and failure.
9: System description:
The system uses high-reliability electrical products, automatic control, automatic start, automatic shutdown and other automatic control. The industrial computer uses a control computer system to ensure the reliability of operation.
Two: Mains and unit automatic switching system function:
The system has the function of automatically switching the power supply between the mains power supply and the unit power supply, and mainly realizes the automatic switching between the mains power supply and the unit power supply. Under the normal state of mains power, the system has the function of giving priority to mains power supply. When mains power is lost, the system can automatically switch to the unit side, and the unit automatically supplies power to the load; when the mains power returns to normal, the system can automatically switch to the city On the power side, the mains power is automatically supplied to the load, and it has the function of priority power supply.
According to the different numbers of generator sets and mains, it can be divided into: single unit and single mains switching, single unit and double mains switching, double unit and single mains switching, double unit and double mains switching. Their functions are as follows: