AQS 9110a

Wide Band Quadripole System for Partial Discharge Measurements

The AQS 9110a series of quadripole (measuring impedance) is a fully passive measurement system optimized for use with the DDX series of partial discharge detectors. 

It is designed for simultaneous measurement of high-frequency discharge pulses as well as the HV test voltage.
The AQS 9110a is equipped with a user selectable three positions internal voltage divider and it is retro-compatible with Haefely older DDX series 

as e.g. DDX 9101 or DDX 7000/8003 (requires max. 7 VAC voltage signal output).  

* Features

 · Passive coupling impedance

 · Due to the three voltage ranges switch unit can be tuned to work with up to three different coupling capacitors or three different output voltages ranges

 · High input current 

 · Built in overvoltage protection