Automatic sectionalizer for overhead medium-voltage distribution networks up to 36 kV. It coordinates with an upstream recloser or circuit breaker to isolate a faulted line section during a de-energized interval.
An automatic sectionalizer helps selectively isolate a faulted section of an overhead distribution network. It is not intended to interrupt fault current by itself.
The device counts fault-current passages or upstream opening operations. When the preset count is reached, it opens during the de-energized interval created by the upstream recloser or breaker.
Megates supplies sectionalizers as partner products on a project basis. Control unit, communication, motor mechanism, sensors and accessories are defined by the project specification.
| Rated Voltage | 36 kV |
| Rated Current | 630 A |
| Short-Circuit Class | 12.5 kA — duty and duration per manufacturer datasheet |
| System | Three-phase automatic line sectionalizer |
| Application | Overhead medium-voltage distribution |
| Operating Principle | Fault counting coordinated with upstream recloser / breaker |
| Control | Electronic control unit |
| Communication | Optional — protocol / interface by project |
| Reference | IEEE C37.63-2024 |
Technical drawings and project documents are prepared according to the selected configuration and project requirements. You can request the following documents during the quotation process.
Network voltage, rated current, short-circuit level, upstream recloser/breaker data, fault-count setting, control and communication requirements are needed for selection.
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No. A recloser interrupts fault current and can reclose. A sectionalizer follows upstream opening cycles and opens during a de-energized interval.
Yes. The shown partner product is in the 36 kV, 630 A and 12.5 kA class; final ratings are confirmed by the manufacturer datasheet.
Control and communication functions may be available depending on the selected control unit and project specification.