The Intepro PAS-F Grid Simulator employs the most advanced PWM rectification (active rectification) technology with four-quadrant operation capability. It is able to provide excellent sinusoidal voltage output and achieve very high output voltage and frequency stability. All necessary protection mechanisms are implemented in the electronic circuitry to quickly detect, execute proper actions immediately and active necessary alarms.

The PAS-F grid simulator offers embedded Low-Voltage-Ride-Through test windows that allow for simple programming used in compliance routines. The PAS-F offers independent phase control to meet requirements such as IEEE1547 where muti-phase inverters must be tested on an individual basis and all phases simultaneously. The PAS-F Grid Simulator is a reference AC source for use in UL1741, IEEE1547, BDEW and CEI0-16 type compliance testing.

The Test Engineers dilemma when testing dispersed energy products such as PV inverters, Energy Storage systems and wind turbines is that the traditional test set up requires a load in parallel with the EUT and AC source. As a result energy from the EUT is burned into the load creating lost energy in the form of heat. The heat often means building infrastructure like HVAC systems must be updated to cool the laboratory or production floor. The PAS-F grid simulator does not require the parallel load and instead full EUT current is sunk into the AC source and 92% of the power is regenerated back to the utility grid. The PAS-F lowers the total cost of ownership and costly infrastructure upgrades.