Basler Electric BE1-87B, High Impedance Bus Differential Relay

BE1-87B, High Impedance Bus Differential Relay

Provides economical high-speed protection in a conventional package for high-impedance differential applications.

Proven high-impedance differential provides optimum speed and selectivity.

Space and cost-saving configurations available featuring a single-phase S1 case, a three-phase M1 case, and a three-phase 19″ rack-mount case.

Easily verify external wiring and prevent misoperation with the CT Circuit Diagnostic function and Steady-State Unbalance alarm.

Two timing options are available. Each includes a jumper-selectable instantaneous or intentional time delay.

Timing Option A1: The instantaneous jumper position provides fastest tripping. The 20 millisecond intentional delay jumper position prevents tripping for short duration faults within the zone of protection that is protected by a high speed fuse.

Timing Option A2: The instantaneous jumper position provides fastest tripping. The 2 millisecond intentional delay jumper position prevents nuisance tripping for very short duration faults such as nearby lightning strikes.

Reduced battery load with low burden power supply.

Easily perform in-case system and device tests using test paddles.

Available as a plug-n-play retrofit for GE PVD21B or PVD21D differential voltage relays. Fits into an existing M1 GE PVD case. Request Basler part number 9282300111.