New lightning protection technologies in Tenaga Nasional Berhad (Malaysia) 33 kV transmission line
03.06.2018The line is located in the open, without natural protection, exposed to frequent lightning impacts, and is characterized by high frequency of non-steady lightning outages.The line was built in an area characterized by high lightning density, absence of natural shielding and high soil resistivity. Not surprising, that it was exposed to outages resulted by lightning impacts. The lightning protection means previously deployed in power lines were II class metal oxide arresters (MOA). MOAs are effective with low earthing resistance.Their application with high earthing resistance (>15Ω) entails premature aging, high maintenance costs and reduced reliability of all power grid.
Poles are located in high soil resistivity area (top/middle layer > 200 Ωm) with earthing resistance > 15 Ω.
In June 2016, 33 kV distribution line was equipped with SAdM35z LLPDs and fault indicators under Lodestar brand (designed by A-TREE Research & Development Company Ltd.). For 10 months of line performance monitoring, from June 2016 to March 2017, the faults number was compared with the data on storm activity in the vicinity of the considered distribution line.
According to the line lightning performance analysis, prior to SAd35z installation, from January 2015 to May 2016 the line have been tripped 22 times. After SAd35z installation, from June 2016 to March 2017, there were only 3 outages. Therefore, SAd35z installation resulted in 86% reduction of lightning outages.
Cost of replacing prematurely-aged components of MOV arresters installed in areas with high soil resistivity decreased more than 10 times after SAdM35z application.
TNB recognized the results of the pilot project as positive and is planning large-scale SAd35z installation in distribution grids located in open areas and territories with high soil resistivity.
Why protecting the line against lightning with a CLG? or LLPD?
CIGRE 2022 finished last week
Streamer met with its old friends over the world - it was a nice and warm event, the first big one after the Covid times. CIGRE was also very useful in setting up new cooperation opportunities, mostly in the European region.
First LLPD installation for E-Distribuzione near Oderzo, Veneto, Italy
In 2019, the University of Napoli contacted Streamer Electric AG in order the find a lightning protection solution for medium voltage lines. Prof. Amedeo Andreotti was looking for medium voltage line protection devices for E-Distribuzione, the Distribution utility of Italy, part of the ENEL group owner of the electrical network in Italy but also many other electrical networks around the world. E- Distribuzione is actively looking to improve the lightning outage rate on their overhead line network and particularly in the northern part of Italy.
FIREX International Exhibition 2022 finished
The new LLPD Catalog 2022 is available for downloads
Some significant improvements implemented inside the document will help the user to better understand Streamer product portfolio and especially topics related to EasyQuench system and Line Lightning Protection Device product range, its operation principles and added values.
The international exhibition Intersec Expo finished this week
At the end of September, Streamer's topics have been presented at ICLP-SIPDA
The ICLP-SIPDA 2021 is a conference organized by the scientific committees of the International Conference on Lightning Protection (ICLP) and the International Symposium on lightning Protection (SIPDA). Conference took place from 20th to 26th September 2021. One of the two representatives from Streamer, Alexander Chusov, shared information about this conference and his thoughts about it
Ivan Zhitenev took part in the 50th St. Gallen symposium
The St. Gallen Symposium is a student initiative aimed at fostering an intergenerational dialogue and bringing world leaders and experts together.
Line Lightning Protection with LLPDd69z for NGCP in Pampanga, Philippines.
First TRANSEC installation Nicaragua
Frequently Asked Questions on Line Lightning Protection Devices (LLPD) are now aired on the Streamer webpage.
Malaysia On-Site Training for LLPD dM35z
LLPD project in Inner Mongolia, China
First installation of TRANSEC units in Ecuador
Vietnam Ha Giang Power Company will test Streamer innovative devices of lightning protection.
Ha Giang is a mountainous province with a complex topography and experiences extremely high lightning density during the thunderstorm season. 110 kV lines in the province mostly pass through mountainous terrain, many rivers, and streams, so breaks of the line wires due to lightning, are not uncommon. Most of the problem areas are concentrated in areas such as the Nam Ngan hydroelectric power plant and the city of Viet Kuang. Installation of innovative lightning protection devices to provide the region with uninterrupted power supply was necessary.
Supply of the dM35z LLPDs to Malaysia
A simple solution for the prevention of COVID-19
The first Transec unit has been installed in Kazakhstan and Central Asia by Streamer
In mid-March 2020, the first installation of the Transec unit has been completed in Kazakhstan.
Streamer JSC at the World Economic Forum in Davos
The 50th Anniversary World Economic Forum was held in Davos, Switzerland, from January 20 to 24, 2020. As part of the event various thematic meetings and discussions were organized and they were also attended by representatives of JSC Streamer - Ivan Zhitenev and Dmitry Terekhin.
FISE exhibition in Columbia
