1. Innovative technology
addressing power line
insulator string contamination
on T&D Networks
Innovative technology addressing power line
insulator string contamination that acts as a Partial
Discharge (PD) monitoring system for transmission
companies who wants to:
¤ Monitor their PD activity
¤ Improve the efficiency of their washing
operations while reducing costs
¤ Avoid power interruption due to vandalism
¤ Monitor the need for replacing composite
insulator based transmission lines

2. MetrySense-4000 unique added value:
utilities now have an overall vision of
contamination levels
Metrycom Communication Limited
6 Maskit Street Herzelia, 4673306, Israel
Tel: +972 9 779 2050 | Fax: +972 9 779 2065
Website: www.metrycom.com
Email: info@metrycom.com
Metrycom Communications Ltd. all right reserved, patent
pending, all specifications are subject to change without notice.
Unique visibility. Improved results.
Power quality is increasingly important to both power utilities and
industry regulators. This increased awareness is attributed to the
ongoing deregulation process, the aging electricity transmission
systems and increased environmental awareness. Consequently,
power utilities invest hundreds of millions of dollars in the
maintenance of their T&D infrastructures. Metrycom offers a
proven solution to utility companies who seek new technologies to
reduce costs, improve power quality, and enable enhanced grid
control.
Contamination of power line insulator strings is a major source of
power quality impairment, which often causes flashovers resulting
in shortcuts and wide-area power sags. The industry as a whole is
significantly impacted by quality impairment, causing enormous
yearly losses.
MS4000 monitoring and
transmission unit
The MS4000 is a wireless sensor solution for monitoring the
efficiency of T&D power lines. MS4000 employs unique partial
discharge sensors to detect contamination over power line insulator
stings. The system provides real-time information to maintenance
teams, helping them reduce operational costs and improve the
quality of the grid. Its wireless sensor units feature extremely low
power utilization, and can employ either power harvesting or a
primary battery (up to 20 years lifespan). Its highly reliable wireless
communications capabilities are based on frequency hopping and
IPv6 routing technologies.
Features
Unique Sensors: A single sensor covers 2km of power line.
Extremely Low power consumption
State-of-the-art IP wireless communication standards: supports
6LoWPAN (IPv6 over wireless – “the internet of things”).
Reliable Connectivity: for environments suffering radio interference/fading.
Long Range: point-to-point wireless connection (LOS) up to 5km, with
network coverage of up to hundreds of kilometers.
Flexible frequencies: 240MHz to 920MHz
IP Network IPv6 Communications over mesh radio network:
automatically create a wireless IP mesh radio network.
Supports large-scale mesh networks
Scalable and easy to deploy
Designed to operate in harsh conditions: temperature range of -40ºC to
85ºC, water and weather proof (IP67), resistant to electromagnetic
interferences and surges.
MS4000 sensor
Benefits
¤ Provides online grid visibility.
¤ Introduces real time high-voltage grid visibility of partial
discharges along the lines and in base sub-stations.
¤ Predicts flashovers
¤ Reduces interruptions and outages.
¤ Reduces maintenance costs by washing insulators at
the required segments of the power line and at the
optimal time.
¤ Provides feedback on the quality of insulator washing
operations.
¤ Provides infrastructure for additional sensor solutions
by including generic interfaces to many sensors types.
Metrycom enables a transition from
periodic to predictive maintenance
Currently, power utilities are spending hundreds of millions of
dollars every year in order to wash insulator strings, generally with
helicopters and trucks. The limitation that these methods impose
on maintenance crews is that they cannot get an overall view of the
contamination level in the power transmission and distribution
system. They are working blind and selecting the sections that
need to be washed mainly based on experience, not on fact. This is
proving extremely costly to the industry as a whole.
MetryView Server with MetrySense-4000 analytics module
MetryView server collects data from Sensors and DAQs via the
gateways and uses MetrySense-4000 analytics software module in
order to analyze and present the information.