Each electronic system carries voltage. This is also known as the load. Within an electronic system are different components that are designed to transmit distinctive electronic loads. The loads transmitted from the power source are then output for different productive purposes. Testing of the system is needed to ensure its reliability and continuous operation. This testing is done with a Load Bank.
A Load Bank, is a self-contained, systematic, testing device that takes an electrical load, applies it to a system, and then dissipates the resultant power output of the source. It's purpose is to imitate the operational load that a power source will actually possess. Where the "real" load is unpredictable and random, conversely, the Load Bank is fully controllable.
Because of this, Load Banks are useful when testing newly assembled units, measuring the stability and endurance of existing equipment with no interruption in operation, testing periodically used generators to ensure that they will operate as intended when a power outage actually occurs, serving as a ballast load during normal operations, and demonstrating to buyers that the components meet performance specifications as outlined in a purchase contract.
How can you use a Load Bank?
Marine:
New ships are moving toward the Advanced Electrical Power System (AEPS) model. This means that virtually all shipboard systems will be converted to electric power. With this evolving shift, power is critical. Load Banks can be used with your ships related power systems to commission and test the quality and consistency of loads.
Oil & Gas:
Load Banks can be installed in a diesel powered generator set to apply the additional load required to ensure the engine fully consumes the fuel in the combustion process and help you avoid "wet stacking". Ultimately this will improve engine performance and alleviate problems that can lead to equipment failure.
Facility Managers:
Facility managers are hard pressed to cut costs. With a Load Bank, you can test and find out how to maximize your power systems, so that you aren't wasting energy or money. Improving your energy use can also help you comply with new "green" initiatives. And a Load Bank can also help you be proactive in avoiding emergencies caused by power outages.
Data Centers:
When critical data center systems with elaborate fault-tolerant designs and the highest level of reliability and up-time fail, the results can be devastating. So back-up generators or UPS (Uninterruptible Power Supply) systems are put in place. But what happens when the back-up power doesn't fire up as intended? Regular Load Bank testing of your back-up power can verify system operation and ensure that all electrical, cooling, and power problems are identified and addressed prior to an emergency.
Testing at Depco:
We take the critical testing step of our process very seriously. Our testing center is equipped with two load banks, 750kW and 2MW, to test generator sets and a dyno facility to evaluate all engines.
Our generators are put through rigorous load tests, during which we assess:
- Unit pulls at full load
- Cooling system function
- Lube oil pressure
- No oil, fuel, coolant leaks
- Base pressure
- Voltage fluctuation
- Responsiveness to load changes
- Turbo boost
- Fuel pressure
- Oil temperature
- AC voltage
- AC current
- AC frequency
All of our tests are performed at full capacity for a minimum of one hour. Each unit must function according to the manufacturer's specifications. If the testing process indicates further necessary repairs, the unit is sent back to the service center for additional work and then re-tested if necessary.
