Overview
Shahig ComPass Series are smart short-circuit and earth fault indicators for medium-voltage distribution networks. The range supports monitoring and fault location with high-precision measurement data transmitted to the control center.
Core Functions
- Short-circuit & earth-fault detection
- Load current monitoring and network analysis
- On-site fault display via high-contrast OLED
- Remote reporting via industrial communication (model dependent)
Typical Applications
- MV cable networks (RMU/switchgear)
- Utilities seeking faster fault location and restoration
- Networks requiring predictive maintenance through monitoring
What it’s best for
- Directional fault indication + high-precision monitoring
- Integrated control function for motor control of load break and grounding switches via dedicated contacts
- Optimized for utilities requiring both fault location and switchgear control support
Technical Data
- Trip range: I>> 10–2,000 A (self-adjustment); response delay 20 ms–60 s
- Earth fault methods: IES> 10–1,000 A; IEP> 1–200 A; IEQ> 1–200 A; IET> 10–500 A; VNE> 1–100%; ΔIE> 1–200 A; response delay 40 ms–60 s
- Voltage coupling: capacitive and resistive
- Communication: RS485 / Modbus RTU + USB service port
- Relay contacts: 4 (dedicated for remote signaling/control)
- Power supply: long-life lithium cell; external auxiliary supply 24–230V AC/DC
Integrated Components
- Indicator unit with OLED display
- Voltage coupling interface (capacitive/resistive)
- RS485 Modbus RTU communication
- 4 relay contacts for signaling and control outputs
Compliance & Standards
- Utility-grade design for MV switchgear integration
- Country-of-origin: Germany
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