ComPass AX12

Overview

Shahig ComPass AX12 is a compact remote monitoring solution for MV applications. It combines short-circuit and earth-fault indication with an integrated RTU to transmit alarms and measured values to the control center/SCADA for faster fault location and improved network reliability.

Key Features

• Short-circuit and earth-fault indication using only 3 single-phase current sensors
• Continuous phase-selective current monitoring
• Integrated RTU with cellular communication (GSM/GPRS)
• Retrofittable: easy and quick installation in existing MV stations
• System includes concentrator + mini‑SCADA for centralized monitoring (configuration dependent)
• Utility protocol readiness: IEC‑104 and DNP3 ready (project dependent)
• Web-hosted remote monitoring with optional e‑mail / SMS notifications

Technical Data

• Applicable neutral earthing: solidly grounded / low impedance
• Short-circuit trip current (I>>): 10–2,000 A
• Short-circuit response delay: 40 ms – 60 s
• Earth fault trip current (IE>): 20–1,000 A
• Earth fault response delay: 40 ms – 60 s
• Measured values: phase currents (L1/L2/L3), IE with phase angles
• Accuracy: 3% (0–630 A, resolution 1 A); 5% (630–1,500 A); 10% (1,500–2,000 A)
• Event history: local event log + unlimited via web-hosted application (configuration dependent)

Communication & Remote Monitoring

• GSM/GPRS communication (SIM card provided by customer) or centralized data concentrator (project dependent)
• Status monitoring: signal strength, communication status, station status
• Data export and web access (configuration dependent)

Web Application Functions (Configuration Dependent)

• Network overview/dashboard (mimic)
• GIS / mapping and GPS location support
• Warnings and alarms display
• E‑mail and SMS notification management
• Threshold settings for analog data
• Trend graphs and downloadable data tables

Power Supply & Housing

• Mains supply: 115 or 230 VAC (±10%), 50/60 Hz (selectable)
• Back-up battery: >48 hours
• Housing: fiberglass reinforced polyester
• Ingress protection: IP66
• Dimensions: 400 × 300 × 200 mm
• Split-core cable-type current sensors: conductor Ø 15–60 mm
• Temperature range: −25 to +85 °C

Integrated Components

• Remote monitoring unit with OLED indication
• Integrated RTU for remote reporting
• 3 × split-core current sensors (single-phase)
• Optional: data concentrator / mini‑SCADA and web-hosted platform access

Compliance & Standards

• Utility-grade MV monitoring and fault indication solution
• Protocol readiness: IEC‑104 / DNP3 (project dependent)
• Ingress protection: IP66