What kinds of information will you require to help ensure a successful load testing project?
Following are several key areas for consideration that we will discuss before we can help you solve your load bank testing challenges.
- kW/KVA rating
- Resistive or reactive
- Power factor; leading or lagging
- Load step resolution
- Length of cable required
- Connection type
- Delivery date and duration of project
- Project location
- What is being tested
- Indoor or outdoor application
- Application description/purpose
- Do they require setup and tear down
- Do they require operation
- Previous experience with load banks
Have you proven out your relaying and protection scheme under reactive load conditions?
If Yes – What protection or relay settings had to be adjusted after the test?
If No – Most factory settings do not account for reactive loads when programing the relays and protection. Site specific coordination programming must be implemented to ensure performance. Our testing provides you that ability.
Has your team quantified the amount of reactive load present in your facility when you are operating at full load?
If Yes – What was the total VAR in your facility at peak usage? What was it at minimal usage?
If No – Due to pump and lighting loads your facility is most likely running at a lagging Power Factor. If your system switches to back up power are you positive the system can perform with the reactive load present?
How many generators are in parallel at this facility? Have you tested the generator paralleling capability under reactive load conditions?
If Yes – How did the Gens share VAR’s?
If No – Generator AVR’s are designed to share VAR evenly between generators. This should be tested at Start-up.