The SDRM201 is an accessory for the EGIL. The EGIL must be equipped with the SDRM option and CABA Win version R03A or higher is needed.
The SDRM201 is intended to use for both static and dynamic resistance measurements (SRM and DRM) on high voltage circuit breakers or other low resistive devices. Used together with the EGIL, the current and also the voltage-drop across the circuit breaker contacts are measured. The measuring unit can thus calculate the resistance as a function of time.
A system consists of an SDRM201 unit with current cables and an SDRM Cable. The SDRM Cable is a small box with integrated cables for connection to the SDRM201 and to the EGIL.