A load bank from PPPI can be used to comply with the requirements of the National Fire Protection Association (NFPA) for the testing of emergency stand-by power systems. A majority of the requirements deal with periodic partial or full load testing of emergency stand-by power systems.

PPPI produces a wide variety of load banks custom designed to meet your requirements, along with the supplemental equipment essential to manage them and other load generating applications.

A load bank is a device designed to develop a contained, structured, and fully controllable electrical load. That load is used for the testing of electrical power sources, such as engine generator sets, Uninterruptible Power Supply (UPS) systems, battery systems, and other load generating systems.

Load banks are designed to be used as a substitute for the operational load that a power source will see in service. When that load is applied it brings the diesel generator set up to an acceptable operating temperature. Diesel engines that are too lightly loaded or idle for long periods fail to reach their optimal operating temperature. This leads to a condition called “wet-stacking” which is “wet” unburned fuel building up in the engine “stack”, due to the under-loading of the generator. A load bank provides the additional load required to make sure that the engine runs at its optimal operating temperature to burn-off these harmful carbon deposits. In addition, a Load Bank can be used to check the power source’s ability to provide a stable voltage and frequency over a sustained length of time.


We provide the following load bank product series:

Permanent Resistive      PowerMaster Series      PowerStorm Series      PowerTrans Series Resistive/Reactive      PowerDuo Series Radiator Mounted      PowerFlow Series

Portable      PowerGlide Series      Direct Current       -PowerLine Series Trailer Mounted      PowerRide Series