Essential Considerations for Starting Load Current Calculations
An important calculation when designing generator rooms or preparing a facility with backup generators is the load current calculation. According to Control Engineering, “this calculation ensures that the generator is capable of starting all loads while staying within the required voltage and frequency requirements of the energized loads.” In order to ensure that your generator is able to handle the load for the tasks you need to keep running, it is vital to carefully complete load current calculations prior to installation.
It’s important to be careful and precise in all planning aspects of generator setups. In case of an emergency, backup generators can be the last resort to keep mission-critical operations running like normal. If you have any questions when it comes to load current calculation, Woodstock’s team can walk you through the process and offer advice on all kinds of power generation topics.
Factors to Consider When Completing Load Current Calculation
Since load current calculations are so important to the success of backup generators, it’s a good idea to focus on many different aspects while making calculations. Taking multiple aspects of generator load current into account will help to keep emergency generators kicking in and running efficiently. Keep in mind the following factors when completing load current calculations:
- Avoid 100% Block Loading: The use of an automatic transfer switch or a control board can be helpful in breaking loads into several load steps.
- Don’t Be Overly Conservative With Voltage-Dip Requirements: When calculating, if the load is able to withstand a 30% voltage dip, allow that to happen.
- Start Large Motor Loads First
- Use Reduced-Voltage Starting: Reduced-voltage or variable frequency drives should be used whenever possible.
- Use the “Walk-In” Feature of Uninterruptible Power Supply Systems: Slowly transfer load from battery to generator using this feature.
By completing thorough and well-thought-out load current calculations, you can help to ensure all of your power needs are met and able to be sustained during emergencies.
Contact Information:
Phone: 610-658-3242
Email: sales@woodstockpower.com