• RWB-400Z Series digital microcomputer protection device
RWB-400Z Series digital microcomputer protection device
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RWB-400Z
Basic info
Brand ROCKWILL
Model NO. RWB-400Z Series digital microcomputer protection device
Rated voltage 230V ±20%
Rated frequency 50(Hz)
Electric energy consumption ≤10W
Rated current in 5A or 1A
Series RWB
Product Detail

Description :

RWB-200 Series digital microcomputer protection device is suitable for low current/small resistance grounding system of 35kV and below, which integrates functions of protection、control、communication and monitor. The device uses component programmable design ideas to reduce maintenance workload and spare parts. It can flexibly meet the needs of a variety of applications, and is the ideal replacement production for traditional electromagnetic relay protection. 

Main function introduction:

  • Main protection relay functions: three stages phase-current protection, zero-sequence current protection, Negative sequence current protection, inverse-time protection, overload component, reclosing, frequency protection, undervoltage/overvoltage protection, zero sequence phase overvoltage protection, Motor start fast break protection, Negative sequence overcurrent, overheat protection.

  • Control functions: Lockout, circuit-breaker control.

  • Communication functions: Using the RS485 interface of the device passing Modbus RTU Communication protocol link to ‌SCADA system; realizable Events\Faults and Measurands viewing, executing remote command, Time synchronizing, Viewing and Changing Settings

  • Data Storage functions: Event Records, Fault Records, Measurands.

  • Remote signaling remote measuring, remote controlling function can be customized address.

Technology parameters:

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Device structure:

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Device terminal definition diagram:

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Installation Diagram:

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