0 - 99 years
SEFL - Single-End Fault Locator for 22 kV line
Fault location accuracy ±150 m | Faults detected Line-to-ground faults, line-to-line faults, three-phase faults | Network grounding system: any type | Lines supervised: overhead lines and cable lines (less than 20% of the total length) | Fault location method : travelling wave-based method, single-end installation
VOLTAGE TRANSDUCERS : Rated voltage: indoor installation up to 24 kV, outdoor installation up to 38 kV | Secondary voltage, Upn 5 V | Nominal frequency DC, 50 Hz or 60 Hz | 3 dB Bandwidth 20 Hz – 4.5 Hz | Signal cable length 33 m | Creepage distance : indoor installation 375 mm, outdoor installation 740 mm | Weight Indoor installation 1.6 kg, outdoor installation 3.0 kg | Power supply 230 V
DATA ACQUISITION SYSTEM : Sampling rate 20 MHz | Signal to Noise Ratio SNR 68 dB | ADC resolution 14 bits | Power supply 230 V | Dimensions : Indoor installation: 4U of 19’’ rack, outdoor installation (climate controlled) : 12 U of 19’’ rack
SERVER : Power supply 230 V | Dimensions : Indoor installation: 1U - 42.8 mm (1.68”) x 482 mm (18.98”) x 589.1 mm (23.19”) without Bezel | CPU Processor Intel Xeon E-2186G, hexa-core HT, 8 MB cache, 3,8 GHz, 4,7 GHz Turbo | OS Windows 10 Pro for Workstations - 4 core Plus | Memory 16 GB Memory DDR4 at 2.666 MHz; 2x 1TB hard disk (7200 rpm) | Maximum number of fault recorded 24 390 faults | Network connection : LAN
SOFTWARE : The user can have easy access to the user interface of SEFL software, both in situ and remotely. Monitoring of the three-phase voltages measured by sensors in real-time Visualization of the last fault measured by the system. Access to time-reversed and filtered signals under analysis to visualize the results of the simulations (graph ‘Energies’) All faults data are stored on hard drive both in .bin and .txt files.
INNOVATION AND SOLUTION ORIENTED
Streamer is a specialist for innovative solutions which improve the reliability of medium and high voltage electrical networks. Streamer invests more than 10% of its turnover every year in three different R&D centers:
• St. Petersburg, Russia - in cooperation with the State Polytechnical University of St. Petersburg;
• Moscow, Russia - for the development of electronic products;
• Chur, Switzerland - in cooperation with University of Applied Sciences Rapperswil
Lightning protection from 6 to 123kV A unique lightning protection solution for overhead line: Line Lightning Protection Devices (LLPDs) with EasyQuench (EQ) technology that has been invented and patented by Streamer. More than 1 million of LLPDs have been installed worldwide (Russia, China, Indonesia, Malaysia, Thailand, Brazil, UAE, Iran, Vietnam, Switzerland, Germany etc.).
Transformer drying solution
TRANSEC is an online drying solution for oil insulated transformer of all sizes. It can be installed, operated and regenerated while the Transformer is running and operational. It pumps the transformer oil continuously through its cylinders and thereby extract the moisture smoothly from the paper. Due to the robust design and it`s operation principle, TRANSEC is the most cost-efficient drying solution for Transformer!