Considerations When Running Generators In Parallel In Cold Weather?

Cold Temperature Effects on Generator Oil

Running generators in parallel in cold weather requires careful consideration of the effects of cold temperatures on fuel oil viscosity. As temperatures drop, fuel oil viscosity increases, reducing the generators’ ability to draw fuel and resulting in decreased power output. This can be mitigated by using a generator oil with a lower viscosity rating for cold-weather operation, such as 5W-30 or 10W-30.

Load Sharing and Battery Performance

In cold weather, battery performance can be significantly reduced, leading to uneven load sharing and potentially causing one generator to work harder than the other. To address this, consider using a generator parallel kit with a built-in load-sharing feature, such as the Reliance Controls GLD30. This can help ensure that the load is evenly distributed between the generators and prevent one from working too hard. Additionally, consider using a battery warmer or placing the batteries in a warm location to maintain optimal performance.

Electrical Load Considerations

When running generators in parallel in cold weather, it’s essential to consider the electrical load requirements of the system. A sudden increase in load can cause the generators to work harder, potentially leading to reduced efficiency and increased wear. To mitigate this, consider using a load bank or a large capacitor to help stabilize the electrical load and prevent sudden spikes. This can help ensure that the generators operate within their optimal efficiency range and reduce the risk of downtime.