| Usage | Remote monitoring and advanced analysis of power grids and surge arresters above 1 kV |
| Arrester measurement | Resistive component, 0 … 3 mA (± 10%) |
| Standard for basic measurement | IEC 60099-5 (measurement of the resistive component of surge arresters leakage current) |
| Other measurements | Fault, surge counter, device and ambient temperature, inclination, location |
| Frequency | 48 Hz … 62 Hz |
| Temperature range | -40 °C … + 85 °C |
| Ingress protection IP | IP 67 |
| User interface | Web, app, e-mail |
| Measuring cycle | 1 hour |
| Communication cycle | – All significant faults – immediate (fire, destruction of the arrester, exceeding the recommended measurements) – UDP package for all other measurements – once a day (with default settings) – MQTT package for all other measurements – once per week (with default settings |
| Communication | 4G/5G (NB-IoT or LTE-M required), LoRaWAN or Bluetooth |
| Battery Autonomy | Up to 20 years |
| Housing material | Thermoplastic V-0 (UL 94), stainless steel A2 ili A4 |
| Instalation | On the earthing side of surge arrester or on the upper third of the transmission line pole |
| Maintenance | Without maintenance, without mobile communication costs |
BEFORE DELIVERY
Before ordering please check:
1. 4G and 5G networks:
• Signal on installation point,
• Signal configuration on installation point.
Installed e-sim allows use of RAM-1 device in the following countries: List of countries.pdf
2. LoRaWAN network:
• Fill out questionnaire (Questionnaire.pdf), which will be attached to quotation.
Please fill out the questionnaire and send it to us prior to order.
INSTALLATION GUIDE
It can be found on the back side of the packaging (Installation guide.pdf). The RAM-1 device must be installed on the grounding side of the surge arrester. There must not be a direct connection between the grounding side of the surge arrester and the RAM-1 device without and intermediate grounding. The metal plate of the RAM-1 device must be turned towards the grounding point. If the device is installed incorrectly it will not work properly. The installation guide for the installation on poles/towers are not necessary. The device must be installed in the top third of the pole/tower.