Acceptance standards for diesel generator sets

The acceptance criteria for diesel generator sets is a comprehensive and detailed process. The following will be expressed and summarized in points according to a clear format and combined with relevant information:

1. Appearance and logo inspection

1. Appearance requirements:

The boundary dimensions, installation dimensions and connection dimensions of the diesel generator set must comply with the specified drawing requirements.

The casing of the generator set should have no obvious damage, oxidation, deformation, etc.

The welding should be firm, the welds should be uniform, and there should be no defects such as weld penetration, undercut, slag inclusions and pores.

The paint film should be uniform, without obvious cracks and peeling; the coating should be smooth, without missing spots, rust, etc.

Fasteners should not be loose and signs should be complete.

2. Electrical installation:

Diesel generator acceptance specifications and standards

It should comply with the circuit diagram, and the connection points of each wire should have obvious signs that are not easy to fall off.

A well-grounded terminal must be ensured.

2. Performance test

1. Insulation resistance and insulation strength:

The insulation resistance, the insulation resistance of each independent electrical circuit to ground and between circuits should be greater than 2MΩ.

Each independent electrical circuit should be able to withstand the AC test voltage to ground and between circuits for 1 minute without breakdown or flickering.

2. Phase sequence requirements:

The phase sequence of the control panel terminals should be arranged from left to right or top to bottom when viewed from the front of the control panel.

3. Startup and shutdown testing:

The automatic startup success rate is no less than 99%.

After receiving the starting command from automatic control or remote control, the diesel generator should be able to start automatically.

The first loading amount should not be less than 50% of the calibrated load.

The standby generator set used in conjunction with the mains power grid should be able to automatically switch or stop automatically after the power grid returns to normal.

4. No-load voltage setting range:

Not less than 95%-105% of the calibrated voltage.

3. Inspection of safety protection devices

1. Automatic protection function:

It should have protection against phase loss, short circuit (not more than 250KW), overcurrent (not more than 250KW), overspeed, high water temperature cylinder temperature, low oil pressure, etc.

2. Effectiveness of safety protection devices:

Safety protection devices such as overload protection, short circuit protection, and leakage protection should be intact and effective.

4. Environmental adaptability test

1. Environmental adaptability:

Conduct working tests on diesel generators under high temperature, low temperature, humidity and other conditions to ensure that they can work normally under various environmental conditions.

5. Other matters needing attention

Random accessories:

The accessories that come with the equipment should be complete, such as instruction manuals, warranty cards, accessories, etc.

1. Installation and grounding inspection:

The installation should comply with the specified technical requirements, including site, foundation, grounding, etc.

Grounding must comply with relevant national standards to ensure electrical safety.

2. Trial operation:

During the trial operation, operations must be carried out in accordance with prescribed procedures to ensure the safe operation of the equipment.

3. Acceptance report:

Fill out the acceptance report carefully and record the working status, performance indicators, existing problems, etc. of the equipment for subsequent maintenance and management.

The above acceptance standards cover the main aspects of diesel generator sets to ensure that the equipment meets the specified performance and safety requirements before being put into use.