Project title: FAULT CURRENT LIMITING CIRCUIT BREAKER

Company name : ARCOLINE LTD.

TECHNOLOGICAL FIELD
Electro-mechanical, Power
Electronics

KEY WORDS
Fault Current Limiting
Circuit Breaker and Load Switch, Electricity Distribution Grid
Protection

PROJECT SUMMARY
The company is developing an electro-mechanical three-phase
24KV/2500A new fast Fault Current Limiting Circuit Breaker
(FCL-CB) commissioned by the Israel Electric Company. The
first prototype will enable to replace old 50MVA transformers by
new 75MVA ones. The system's upper limits are 35KV/3000A for
fault current up to 40KA. The limiting time is less than 1msec.

The FCL-CB will automatically self test the grid 0.3sec after the
first disconnection to determine a final open or closed position
according to the grid short circuit status. This system offers
unprecedented protection for power systems, for expensive
strategic equipment and for electrical networks.
The innovation enable to eliminate actual grid protection
elements consuming power permanently and to save up to 2-3% of
the energy transferred via distribution power lines. Each 1% of
energy saving represent an ROI of less than a year and prevention
of green-house gas emissions of thousands of tons per a year
associated to each replaced transformer mentioned above.

APPLICATIONS
& TARGET MARKET
The Arcoline product is an improved system to be used for
protection of distribution grid equipment. It enables to prevent
or at least defer upgrading of switchboards to meet increase in
electricy demand, and it also enable the use of lower rating
electrical equipment, which renders possible considerable
savings. The target markets are utility companies
and industries that require protection for their electrical
equipment.

FEATURES & BENEFITS
* Stop fault current rise within just 1mSec
* 50 fault current disconnections before maintenance, or
* 10,000 synchronic load switching operations before maintenance
* Enable energy saving and help in preventing cascade failures
* Mechanical built-in switch for maintenance
* Dual-purpose (FCL + Circuit Breaker), cost-effective
* Can be connected in both bus-tie or feeder position
* Very silent disconnection
* More reliable power continuity
* Shorter outages

ENTREPRENEURS
Dr. Yuriy Onufriyenko - Ph.D. Electrotechnics. 87
inventions and 3 articles.
Mr. Eduard Ulanovsky - Electro-mechanical
engineer. 11 inventions.
Mr. Dov Yeger - CEO

PROJECT STATUS
The project has completed its two-year incubator period.

COOPERATION REQUIRED
Strategic partners. Financial Investment.
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TEL: 972-8-6758532; 972-50-5402765 FAX: 972-8-6751113 E-MAIL:
dov@arcoline.co.il

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