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RWK-55 Feeder Automatic Unit electrical drawing

Matched with pole-mounted medium voltage switching equipment on overhead distribution networks in urban, suburban and rural areas. Widely used in long radial feeders, distributed power grid connection lines and rural grid reconstruction projects. The elec

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Updated2026.09

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Feeder Automatic Unitelectrical drawing

Document description

This is an electricaldrawing for the RWK-55 series feeder automatic unit.

ROCKWILL RWK-55 Feeder Automatic Unit is an outdoor intelligent feeder automation control unit designed for matching pole-mounted medium voltage switching devices on overhead distribution feeders. The electrical drawing defines the complete internal wiring, voltage/current signal input loop, auxiliary power circuit, backup battery circuit, switch actuation output and communication terminal layout of the unit. It integrates high-precision signal sampling, fault detection, fault counting, local HMI parameter configuration, event recording and remote data transmission functions. The product complies with IEC 60255-1:2018, IEC 60255-26:2020 and IEC 62271-111:2019 standards. Relevant documents include Type Test Certificate No. TT-2025-04200, Witness Test Report No. WT-2025-09133, Routine Factory Test Report No. FT-2025 series, Raw Material Mill Certificates, all issued by CNAS accredited independent test laboratory and available for tender submission, utility review and project site acceptance. Adopting stainless steel IP65 tropicalised anti-corrosion and UV resistant enclosure, it supports dual power supply with external auxiliary power and built-in backup battery, suitable for long-term pole-mounted outdoor operation.

Frequently asked questions

What is the core function of the RWK-55 Feeder Automatic Unit?

The RWK-55 Feeder Automatic Unit is used for overhead feeder fault detection and sectionalizing. It collects line voltage and current signals, counts fault events and cooperates with upstream protection to isolate permanent fault segments automatically.

What international standards and certification does the RWK-55 Feeder Automatic Unit comply with?

The RWK-55 Feeder Automatic Unit is designed and tested in accordance with IEC 60255-1:2018, IEC 60255-26:2020 and IEC 62271-111:2019 standards. It is supported by complete Type Test Certificate No. TT-2025-04200, Witness Test Report No. WT-2025-09133, factory test reports and material certificates for project review and acceptance.

What power supply configuration does the RWK-55 Feeder Automatic Unit adopt?

The RWK-55 Feeder Automatic Unit adopts dual power supply design, which can be powered by external auxiliary power and equipped with built-in backup battery with anti-over-discharge protection. It can complete switching operations and maintain all control functions even when external auxiliary power fails.

What communication interfaces and protocols does the RWK-55 Feeder Automatic Unit support?

The RWK-55 Feeder Automatic Unit is equipped with RS485 and Ethernet communication ports, supporting Modbus, DNP3 and IEC 60870-5-104 protocols. It can upload real-time electrical parameters, fault records and equipment operating status to the SCADA system for remote monitoring and control.

What wiring requirements are specified in the electrical drawing for the RWK-55 Feeder Automatic Unit?

Strictly follow the terminal definition marked on the electrical drawing for the RWK-55 Feeder Automatic Unit, separate strong-current actuation wiring from weak-current signal wiring, ensure reliable protective earthing, and verify wiring continuity and insulation resistance before power-on commissioning to prevent device damage.

RW Energy

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100-500 2013 China

Zhejiang Rockwell Energy Technology Co., Ltd. is an international enterprise specializing in the research, development and manufacturing of recloser controllers, power quality management, power monitoring systems and other high-end power equipment. In today's critical period of global energy transition and power system upgrading, the company has gathered a group of top talents in the fields of power engineering, automation control, software development, etc., who carry the enthusiasm and persistence for the power business, and are committed to overcoming the complex problems in the power system, and promoting the intelligent development of the power industry with innovative technology. Mission: To make global electricity smarter, more reliable and more efficient with innovative technology. Vision: To be the leader in global power intelligence.

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RWK-55 Feeder Automatic Unit electrical drawing

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