Terasaki ANU-1 OCR Checker

Portable OCR Checker for field-testing overcurrent relays

The Terasaki ANU-1 OCR Checker allows easy checking of the long time-delay trip, short time-delay trip, instantaneous trip, ground fault trip functions and the pre-trip alarm function of the OCR in the field.

Ratings and Specifications

Power supply:AC100–110V, 50/60Hz or AC100–240V, 50/60Hz with type C plug; 4~AA alkaline cells
Power consumption: 7VA

Measurement output

Long time delay trip pickup current
Long time delay trip pickup time
Short time delay trip pickup current
Short time delay trip pickup time
Instantaneous trip pickup current
MCR trip pickup current
Ground fault trip pickup current
Ground fault trip pickup time
N-phase protection trip pickup current
N-phase protection trip pickup time
Pre-trip alarm pickup current
Pre-trip alarm pickup time.