Features
- Support fiber optic sensor.
- Fast localization of the arc fault.
- Robust sensor design. Degree of protection IP68.
- Programmable operation logic.
- Support for the ROV function.
- Two modes of operation with MTZ:
- operating mode with current confirmation.
operating mode without current confirmation.
Self-diagnosis function. - Two-line alphanumeric display.
- Event log.
Applications
- Reduce the harm of arc light to human body;
- Reduce damage to equipment caused by arc short-circuit faults;
- Avoid transformer damage caused by bus failure;
- Protect the dc system in the station;
- Ensure the stable operation of power substations;
- Thermal power plant electrical section switchgear;
- Wind farm and photovoltaic station switchgear;
- Large municipal engineering project;
Specification
- Sensitivity to arc fault, lux: no more than 10,000
- Device response time without current control, ms, no more than 12
- Device readiness time for protection operation after power-on, s, no more than 0.4
- Overall dimensions： 144 x 144 x 182mm
- DC / AC voltage：220 or 110V
- Permissible voltage deviations：+10/-20%
- Total cable length： no more than 300 m
- Characteristics of MTZ input ports Number： 35
- Signal value (DC/AC)：110/220V
- Current： no more than 5mA
- Switching voltage： 12V
- Output load capacity： not more than 0.1A
- Technical resource： not less than 125,000h
- Service life： not less than 25years
