Smart Navigator 2.0

Intelligent fault detection in medium voltage networks

Intelligent fault detection

The proven overcurrent detection alogrithm detects fault currents reliably under a wide range of network situations. Individual parameter settings tailor the Smart Navigator 2.0 perfectly for all locations in your overhead line network, eliminating false tripping.

Whenever a fault is detected, besides the fault information, also all monitoring data is signalled to the control room – this gives full visibility into the network condition before and after the fault occurred.

Fault messages containing information about fault direction, voltage interruption, current drop and increase in conductor temperature support the problem detection and root cause identification. Every fault is signalled to the control room within 1 minute.

 

Power supply

The Smart Navigator 2.0 harvests the energy for its power supply from the overhead line current. Thanks to dynamic adaptation of its operation to load conditions, a load current of 5 Amps suffices.

 

Remote signalling and monitoring

Thanks to remote signalling, the complex, high-quality and diverse sensor technology enables clear monitoring and thus direct insight into your overhead line network. Sections containing decentralized feed-in points are clearly identified by the remotely reported load flow direction.

Remote maintenance such as software updates or configuration adjustments can be performed via the GSM / LTE connection.

The overhead line conductor temperature is measured and remotely reported, enabling optimal load control by the control room.

 

Clamp

Thanks to the innovative clamping mechanism, unintentional detaching from the overhead line due to environmental influences is impossible.

With a hot stick, the Smart Navigator 2.0 can be mounted on an overhead line up to 12 meters high, even under live conditions. Likewise, it also can be uninstalled again without any problems.

  • Intelligent fault detection – reduces outage times
  • Overhead line monitoring – data for the evaluation of the network condition
  • Energy Harvesting – simply clipped onto a phase conductor of the overhead line
  • Innovative installation - on live conductors and from the ground
  • Remote maintenance – configuration and updates from the control room

Technical specifications

Short-circuit trip current

Max. 1,200 A

Response delay short-circuit -
Accuracy -
Self-adjustment -
Trip factor -
Adjustment delay -
Peak load memory -
Indication (short-circuit/earth fault)

Ultra bright LEDs

Visibility -
Flash rate -
Manual reset

With magnet

Automatic time reset

4 h

Remote reset

Via iHost

Reset on current restoration

>3 A load current

Reset on voltage restoration

≥5 kV line voltage

Current measurement accuracy

±2 A (0 – 10 A)

3 % (10 – 600 A)

5 % (>600 A)

Tripping

Different algorithms for fault detection

Power supply

Energy harvesting

Battery check -
Max. permissible voltage

≤69 kV (L-L)

Withstand current

800 A (@ ≤50 °C)

600 A (@ ≥50 °C)

25 kA/3 s

40 kA/1 s

Event reporting -
Remote monitoring

Fault detection

Fault current magnitude and duration

Loss of current or voltage

Data monitoring

Communication

DNP3, HTTP, HTTPs, FTP

Private APN , public APN

TLS1.1, TLS1.2

Cellular (WAN)

2G/4G (GSM/LTE)

Server

iHost Cloud for quick system integration

Direct connection to the control room

Individual server solution

Remote maintenance

Software updates

Configuration settings

Functionality monitoring

Installation

Hot stick

(installation on live conductors)

Pairing

With two Smart Navigator 2.0 Satellites

Housing

UV resistant polycarbonate, IP65

Temperature range -40 to +85 °C (-20 to +60 °C for devices with oder no. 44-10xx-xxx)
Cable diameter

Up to 33 mm

  1. Current sensor with energy harvesting
  2. Integrated modem for remote signalling
  3. Bright LEDs
  4. Easily accessible battery compartment
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