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RWH-15 General Protection Device used manual
Operating Instruction · Rw Energy

RWH-15 General Protection Device used manual

Widely used for protection, measurement and monitoring of 10kV~15kV feeders, distribution transformers, capacitor banks and small power generation access points in urban and rural power grids, industrial parks and mining power systems. It can quickly iden

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Updated2026.09
LanguageEnglish
FilePDF · 4 MB
General Protection DeviceUsed manual
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Document description

RW ENERGY RWH-15 General Protection Device: Complies with IEC/GB standards, multiple protections & comms, precise control, easy installation/maintenance to ensure power grid reliability.

ROCKWILL RWH-15 General Protection Device is a versatile intelligent relay protection unit designed for medium voltage distribution systems, covering feeder, transformer and capacitor set protection applications. It integrates multi-type protection functions, measurement, event recording and local/remote communication functions. The device adopts high-precision sampling circuit and reliable anti-interference hardware design, supporting flexible setting of protection parameters to meet diverse grid protection requirements. The product complies with IEC 60255-1:2018, IEC 60255-26:2020 standards. Relevant documents include Type Test Certificate No. TT-2025-04182, Witness Test Report No. WT-2025-09115, 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. With compact panel-mounted structure and wide operating temperature range, this protection device can work steadily in indoor switchgear and other harsh on-site environments.

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Frequently asked questions

The RWH-15 General Protection Device integrates phase overcurrent, earth fault, overload, overvoltage and undervoltage protection functions. Protection logic can be activated or deactivated according to actual project needs to realize comprehensive monitoring and protection of distribution equipment.
The RWH-15 General Protection Device is designed and tested in accordance with IEC 60255-1:2018 and IEC 60255-26:2020 standards. It is supported by complete Type Test Certificate No. TT-2025-04182, Witness Test Report No. WT-2025-09115, factory test reports and material certificates for project review and acceptance.
The RWH-15 General Protection Device is equipped with RS485 and Ethernet communication ports, supporting Modbus-RTU, Modbus-TCP and IEC 60870-5-104 protocols. It
The RWH-15 General Protection Device is fitted with a local LCD HMI panel. Field technicians can view measured values, adjust protection setting values and check historical event records directly on the device without extra configuration software.
The RWH-15 General Protection Device can store event logs and fault waveform records. All recorded data will be retained after power failure, which can be exported and analysed to locate fault causes after power system accidents.
During routine maintenance, check the tightness of secondary wiring terminals and the working status of power supply. Keep the panel clean and dry, inspect communication status periodically, and verify protection setting values after grid modification to guarantee reliable operation.
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