Precautions for Purchasing 500KW Second Hand Generator Set Equipment

There are some tools or units that cannot afford a power outage. However, due to various reasons, the mains power may fail. In such cases, temporary emergency power generation equipment is needed. But the budget might be limited. Currently, some medium - sized and small companies are looking to purchase second - hand generator sets because they can still function properly and save customers a significant amount of money. If one intends to buy large or medium - sized generator equipment, purchasing the decommissioned equipment from state - owned units or large enterprises is a good option. So, what should one pay attention to when buying a second - hand 500KW generator? Let's take a look at the precautions for second - hand generator equipment transactions.

What should be noted when purchasing a 500KW second - hand generator set?

Appearance requirements for the 500KW generator set:

The boundary dimensions, installation dimensions, and connection dimensions of the second - hand generator shall conform to the product drawings approved through the prescribed procedures.

The welding of the unit shall be firm, and the welds shall be uniform, free of defects such as burn - through, undercut, slag inclusion, and porosity. The welding slag shall be cleaned up. The paint film shall be uniform, without obvious cracks or peeling. The plating layer shall be smooth, without unplated spots or rust. The fasteners of the unit shall not be loose.

The electrical installation of the second - hand generator shall comply with the circuit diagram, and there shall be obvious and non - detachable marks at the connection points of each wire of the unit.

There shall be a well - grounded terminal for the second - hand generator in the transaction.

The nameplate of the second - hand generator shall contain complete information.

Insulation resistance and insulation strength:

Insulation resistance: The insulation resistance between each independent electrical circuit and the ground and between circuits shall be greater than 2MΩ.

Insulation strength: Each independent electrical circuit of the unit to the ground and between circuits shall be able to withstand the AC test voltage for 1 minute without breakdown or flashing.

Test voltage for the circuit voltage

Requirements for the second - hand generator to maintain a ready - to - run state: The unit shall be equipped with a heating device to ensure that the oil temperature and cooling medium temperature are not lower than 15°C during emergency start - up and rapid loading.

Reliability check for automatic start - up, power supply, and automatic shutdown:

After receiving the start - up command from the automatic control or remote control system, the diesel generator shall be able to start automatically.

When the unit fails to start automatically for the third time, a start - up failure signal shall be issued. If there is a standby unit, the program start - up system shall be able to automatically transmit the start - up command to the other standby unit.

The time from the issuance of the automatic start - up command to the power supply to the load shall not exceed 3 minutes.

When choosing a second - hand generator set, the brand and reputation are the simplest criteria. When choosing an unknown brand, we cannot be sure whether there is any corner - cutting. A trustworthy manufacturer can provide better products and better services. High - quality equipment will also reduce our future capital investment and make maintenance work easier. Guangxi Dingbo Power mainly deals in diesel generator sets from 30KW to 3000KW, including Yuchai, Cummins, Volvo, Perkins, etc. It can design and install standard generator sets, automatic parallel operation of two or more units, automated, trailer - mounted, and low - noise multi - functional generator sets. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to [email protected].