The California Instruments 3091LD AC electronic load is designed to provide precisely controlled, non-linear loads for testing AC power generation equipment such as UPS's and AC sources. In addition, any active or passive current carrying devices such as switches, circuit breakers, fuses, connectors and power semiconductors can be tested.
The 3091LD can be deployed in ATE test stations using either IEEE-488 or RS232C remote control. The industry's Standard Commands for Programmable Instrumentation (SCPI) is used and instrument drivers are available to ease test software development. The built-in metering functions of the 3091LD can be used to eliminate the need for additional test equipment such as meters, power analyzers and oscilloscopes. This and the reduced size of the 3091LD compared to massive load banks, represents savings in both cost and rack space.
The 3091LD can simulate high crest factor and variable power factor load conditions.This provides an effective method of testing AC products against real-world conditions and can significantly increase product reliability. The operating modes include: constant power, constant resistance, constant current, constant voltage, and short circuit.
