Power Supply; Keyboard And Display - GE GEK 106168E Instructions Manual

Digital breaker failure protection

Table of Contents

5. HARDWARE DESCRIPTION

5.2.3 POWER SUPPLY

The DBF power supply can be 48-125 VDC or 110-250 VDC rated. The operating margin of the power supply is +

20%, and is galvanically isolated from the rest of the relay's circuits. The power supply provides

12 VDC to the

analog circuitry and the output relays, and

5 VDC for the digital circuits.

The DBF display at the front of the relay is liquid crystal type and consists of two rows of 16 characters each. The

display has background light with variable lightness adjustable by a potentiometer located on the rear of the front

cover plate.

DBF Breaker Failure Protection

GEK-106168E

Table of Contents

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