Article 5 of the national standard GB/T4712-1996 "Requirements for Component Levels of Automated Diesel Generators" has the classification of automated units. The characteristics of the automation levels are as follows:

Features of first-level automation unit:

1. According to automatic control instructions or remote control instructions to achieve self-starting.

2. Automatically accept the load according to the load instruction.

3. According to automatic control instructions or remote control instructions to achieve automatic shutdown.

4. Automatically adjust frequency and voltage to ensure that the accuracy of frequency and voltage adjustment meets the requirements of product technical conditions.

5. Realize the automatic supplementary charging of the battery and the automatic supplementary charging of the compressed air bottle.

6. There are protection devices for overload, short circuit, over speed, excessive cooling water temperature, and low oil pressure. According to the needs, select protection devices for over voltage, under voltage, under speed, too high oil temperature, too low starting air pressure, too low fuel tank oil level, and too high generator winding temperature to meet the needs of different users for the automation of generator sets Performance requirements.

7. There is an acousto-optic signal system indicating normal operation or abnormal operation.

Features of secondary automatic unit:

1. Various contents stipulated by the first-level automatic unit.

2. Automatically maintain the ready-to-operate state of the emergency unit, that is, the oil pressure, oil temperature and cooling water temperature of the diesel generator set during emergency start and rapid loading reach the specified values of the product technical conditions.

3. When the unit fails to start automatically, the system automatically transmits the start command to another standby unit.

Features of three-level automatic unit:

1. Various contents stipulated by the secondary automatic unit.

2. Automatic replenishment of fuel, engine oil and cooling water.

3. According to automatic control instructions or remote control instructions, complete the automatic parallel and de-alignment of two units of the same model, and automatically and smoothly transfer the active power and reactive power of the load.

Features of four-level automatic unit:

1. Various contents stipulated by the three-level automatic unit.

2. According to the automatic control instructions or remote control instructions, the automatic paralleling and de-arranging of no less than three units of the same model can be completed, and the active power and reactive power of the load can be automatically and smoothly transferred.

3. According to automatic control or remote control instructions, complete the automatic parallel and de-sequence between two different capacity units and between two different capacity units and the grid, and automatically and smoothly transfer the active and reactive power of the load.

4. Centralized automatic control. That is, a unified control center can automatically control the working status of multiple automated units, so as to achieve unattended operation.

5. Automatic technical diagnosis of adjusting device and pressure regulating device. That is, a certain automatic device can determine the technical status of the speed regulating device and the pressure regulating device.

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