WIB1 CT Powered Time Overcurrent and Earth Current Relay

Product detail

Product code:
WIB1
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Product Information

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Documentation (Brochures & Manuals)

  • WIB1 – ANSI 50, 51

The WIB1 is a self/ct powered protection relay. No aux. voltage needed. Designed for harsh environment from -40°C up to +85°C. 20 years maintenance free.

Connection WIB1

Available Variants of the WIB1

WIB12PE

Self/ct powered Time Overcurrent and Earth Current protection relay, i. e. no aux. voltage needed.

Designed for harsh environment from −40°C up to +85°C. 20 years maintenance-free.

Plug-in screw terminals, with connectors for test winding.

WIB12PEB

Self/ct powered Time Overcurrent and Earth Current protection relay, i. e. no aux. voltage needed.

Designed for harsh environment from −40°C up to +85°C. 20 years maintenance-free.

Plug-in screw terminals, with connectors for test winding.

With blocking funktion.

WIB12FE

Self/ct powered Time Overcurrent and Earth Current protection relay, i. e. no aux. voltage needed.

Designed for harsh environment from −40°C up to +85°C. 20 years maintenance-free.

Fixed screw terminal.

WIC1+WIB1+WIP1 Accessory: Flag Indicators

WI1 SZ4, see separate page

Flag indicator, for a mechanical trip signaling independent of external (auxiliary) voltages.

WI1 SZ5, see separate page

Flag indicator, for a mechanical trip signaling independent of external (auxiliary) voltages, including a bistable signal contact 230 V AC, 3 A.

Benefits and Key Features

  • CT/Self-powered – No auxiliary supply voltage needed

  • Designed for harsh environment

  • Compact form factor


Application

  • The WI Line devices are self-powered – The protection relay does not need supply voltages for Ring Main Units (RMUs).

  • The primary application of WI Line devices is Feeder Protection (also as backup) that does not need supply voltage.

Inputs and Outputs
Binary inputs 1
Current transformer inputs 3
Protection ANSI
Time overcurrent protection 50/51
Earth fault protection 50N/51N
Additional Features
Fault recorder (none volatile)
Parameter sets 1
Mounting Type
Housing suitable for mounting plate

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