Bangladesh BREB rural electrification 33kV overhead distribution feeders, rural power grid expansion & upgrade projects, small solar farm outgoing lines, sectionalizing protection on long overhead circuits, reducing outage time for rural residential and a
This document applies to the technical requirements for the design, testing, supply, installation, and related supporting equipment (sensors, controllers, cables, etc.) of automatic reclosing on 33kV columns in Bangladesh Rural Electrification Board (BREB) 33kV 50Hz medium voltage distribution network.
ROCKWILL 33kV Automatic Circuit Recloser is three-phase pole-mounted vacuum recloser designed to satisfy BREB 33kV Automatic Circuit Reclose Specification Submission Sheet for Bangladesh rural overhead distribution network. Nominal system voltage 33kV, highest equipment rated voltage 38kV, rated continuous current 630A /1250A, rated short circuit breaking current 16kA, 20kA for 3 seconds. Vacuum interrupter with solid dielectric insulation, SF₆-free. Controller supports up to 4 programmable auto-reclose sequences with lockout on permanent fault. Control cabinet IP65, tropicalised design for high temperature, heavy humidity and monsoon environment. Local manual operation and SCADA remote communication supported. Product shall pass full IEC type test and BREB witness test as required in submission sheet, widely deployed for Bangladesh rural 33kV overhead feeders.
Outdoor pole‑mounted automatic circuit recloser with controller for 33kV lines, enabling intelligent fault isolation and grid self‑healing.
25.8kV-38kV Outdoor Auto Circuit Vacuum Distribution Recloser. Direct manufacturer supply for IEC/IEEE compliant distribution automation and feeder protection solutions.
BREB 33kV Automatic Circuit Reclose Specification Submission Sheet is the official tender document template of Bangladesh Rural Electrification Board. It requires suppliers to fill in all technical parameters, test records and drawings of 33kV pole-mounted automatic recloser for technical evaluation, to verify whether the recloser meets BREB rural overhead network requirements.
BREB 33kV Automatic Circuit Reclose Specification Submission Sheet requires the equipment rated voltage 38kV for nominal 33kV system. It shall withstand 70kV rms power frequency voltage for 1 minute and 170kV peak lightning impulse voltage (1.2/50μs). Insulation system shall remain stable under Bangladesh tropical monsoon climate.
BREB 33kV Automatic Circuit Reclose Specification Submission Sheet requires the recloser to provide up to four programmable auto-reclose operations and lock out when permanent fault occurs. This function restores power supply automatically for transient overhead faults which are common on Bangladesh rural long feeders.
BREB 33kV Automatic Circuit Reclose Specification Submission Sheet requires control cabinet IP65 protection class. The whole equipment shall be tropicalised, anti-UV, anti-corrosion and resistant to high humidity, heavy rainfall and salt mist to adapt to Bangladesh monsoon and coastal environment.
BREB 33kV Automatic Circuit Reclose Specification Submission Sheet requires complete IEC type test reports. BREB witness test can be arranged upon request. The vacuum recloser automatically detects and isolates faults, restores power for transient faults, reduces manual patrol workload and improves power supply reliability for Bangladesh rural agricultural and residential consumers.
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