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.
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
The interim results of the work of the new TRANSEC are ready
The equipment at the Pavlovskaya HPP and Zatonskaya Power House of the Bashkir power-producing company was installed in May 2021 and has been actively operating for 3 months
Installation of TRANSEC at Shaturskaya CTTPP in Russia
The power plant was built over a hundred years ago and is one of the oldest in Russia
The first of the lightning protection devices, developed to be supplied to SGCC sites, was sent to carry out operational testing in Guangxi province.
The lightning protection device has successfully passed certification tests at CEPRI (Wuhan) owned by SGCC.
During the development, new design and process solutions were found and applied, resulting in improvements of technical characteristics and reducing the cost of a multi-chamber system – the main functional element of a lightning protection device whose design is protected by patents of the Russian Federation and PRC.
The TRANSEC power transformer insulation restoration system was installed in Novocherkassk, Russia
TRANSEC will dry oil and paper insulation on the TCNP 25000/10 transformer
On June 2, the Streamer leaders met with the Minister of Economy of Guatemala and the Ambassador of Guatemala to Russia
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.
Installation of a new TRANSEC at the Elizavetinskaya compressor station of Gazprom in Russia
The compressor station pumps Russian gas to Europe via the Nord Stream gas pipeline.
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
The TRANSEC pilot module was installed for the Petrostal Metallurgical Plant in Russia
The equipment is being tested on the TDR 12500/10 transformer.
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.
Streamer in Summer Biathlon Championship in Sosnoviy Bor, Russia
The Summer Open Biathlon Championship (formerly the Tournament for the Prizes of Dmitriy Malyshko) took place on September 26-27, 2020 in Sosnoviy Bor, Leningrad region, Russia.
Supply of the dM35z LLPDs to Malaysia
A simple solution for the prevention of COVID-19
