Chroma Announces Programmable AC Electronic Load
Chroma Systems Solutions announced its new 63800 series ac electronic loads, which are designed for testing uninterruptible power supplies(UPS), off-grid Inverters, ac sources and other power devices such as switches, circuit breakers, fuses and connectors. Key features include a power rating of 1800 and 4500W, and a voltage range of 50 – 350Vrms.
The Chroma 63800 loads can simulate load conditions under high crest factor and varying power factors with real time compensation even when the voltage waveform is distorted. This special feature is said to provide real world simulation capability and prevents overstressing thereby giving reliable and unbiased test results.
The 63800’s design uses DSP technology to simulate non-linear rectified loads in a unique RLC operation mode. This mode is said to improve stability by detecting the impedance of the UUT and dynamically adjusting the load’s control bandwidth to ensure system stability.
Equipped with unique timing measurement functions, the 63800 loads allow users to measure critical timing parameters such as battery discharge time, the trip time for fuse and breaker testing and UPS transfer time.
Comprehensive measurements allow users to monitor the output performance of UUT. Additionally, voltage & current signals can be routed to an oscilloscope through analog outputs. The instrument’s GPIB/RS232C interface options provide remote control & monitor for system integration. In addition, built-in digital outputs may be used to control external relays for short circuit (crowbar) testing.
Chroma’s 63800 loads also feature fan speed control ensuring low acoustic noise. The diagnosis/protection functions include self-diagnosis routines and protection against overpower, over-current, over-voltage and over-temperature.
