Sonel MPU-1 Leakage Current Alarm Signaler

The Sonel MPU-1 is a dedicated safety monitor designed to measure the leakage current in Overhead Lines AC Low Voltage and Medium Voltage power networks. It is designed to make measurements of a networks leakage current to define the safety condition. The device enables the engineer to set limits for a maximum safe value of flowing leakage current and values above this limit activate a visual and audible alarm to give a warning.

The MPU-1 provides a constant monitoring of any current flowing to earth by using a single or double clamps on 50Hz or 60Hz voltage networks.

FEATURES

Constant controlling of current flowing on earthing,
Measurement with the use of single clamp or two clamps simultaneously. In case of using two clamps, current value is summed up, which allows for checking twin pylons (rotational), with independent clamp for each component pylon,
Work mode LED indicator,
Visual and sound alarm (speaker built in cover) in case of higher value of leakage current than defined limit (factory default set to 1A),
No DC current measurement,
Measurement with flexible clamps (Rogowski coil) – Sonel F series,
Measurement in 50 Hz or 60 Hz frequency low and medium voltage networks,
Auto ranging,
Battery level monitoring,
Ergonomic handling.
MPU-1 for operation requires F1, F-2 or F-3 clamp (additional accessories).