With the continuous advancement of society,Generator RentalThe frequency is increasing. Many generator rental companies put a lot of effort into cooling down the generators during maintenance. So, what are some more important considerations when renting a generator?

What to pay attention to when renting a generator

Firstly, pay attention to selecting the diesel generator rental manufacturer.

Firstly, we can compare the three to see if the prices are at the average level of the same industry.

2. It's the company size; a factory with a certain scale is more reliable in terms of quality.

3. After-sales Service.

4. Supply of accessories and consumables. If it's an import entity, it's essential to check if the manufacturer has sufficient imported accessories and consumables.

Section 2: Points to Consider When Selecting Diesel Generator Sets

1. Unit Purpose. Diesel generator sets come in three operating modes: normal, standby, and emergency. Thus, different applications require different specifications for diesel generator sets.

2. Load Capacity. Select load capacity and load variation range based on different applications, and determine the single-unit capacity and standby diesel generator capacity.

3. Aircraft Operating Environment Conditions (primarily referring to altitude and climatic conditions)

4. Selection of diesel generators, choice of generator and excitation methods, and selection of automatic features for diesel generators.

What is the cooling method of the generator?

Closed-loop air-cooled

For steam turbines with an output of 50,000 kW or less, most use a closed-loop air-cooling system, utilizing the internal fan of the motor to sweep and cool the heated components.

2. Hydrogen Cooling

Hydrogen cooling is widely used in generators with capacities ranging from 500,000 to 600,000 kilowatts. The heat dissipation performance of hydrogen (purity 99%) is superior to that of air, significantly reducing the ventilation friction loss of the motor and improving the generator's efficiency. Hydrogen cooling requires explosion-proof and leakage prevention measures, which makes the motor structure more complex and increases the consumption and cost of electrode materials.

3. Liquid Medium Cooling

The relative cooling capacity of water is 50 times that of air, requiring much less water flow to dissipate the same amount of heat. Therefore, by using some hollow conductors in the coil and implementing water cooling within the conductors, the temperature rise of the motor can be significantly reduced, delaying insulation aging, and extending the motor's service life.