ANU-1 OCR Checker

The ANU-1 OCR checker is an indispensable tool for field-testing overcurrent relays (OCRs). This compact, portable device can verify the operational integrity of OCRs by simulating fault conditions. It tests various functionalities, including long and short time-delay, instantaneous trips, ground fault trips and pre-trip alarms. Its user-friendly interface allows for quick and precise adjustments of current settings, ensuring comprehensive relay testing. Ideal for utility and industrial applications, the ANU-1 enhances maintenance efficiency by accurately assessing the performance of protective relays — contributing to the overall safety and reliability of electrical systems.

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
• Instantaneous trip operation
• N-phase protection trip pickup current
• Pre-trip alarm pickup current *2
• Operation: Via front of tester
• Weight: 1kg

• Long and short time delay trip measurement capability
• Instantaneous and ground fault trip measurement
• Pre-trip alarm functionality
• OCR measurement without requiring control power
• Single connector for simplified OCR connection
• Clear LCD display for function, output phase and trip signal indicators
• Push-button switches for effortless operation

• Utility substations — In utility substations, the ANU-1 OCR checker is vital for ensuring the proper functioning of overcurrent relays, which protect against faults and overloads in the power distribution network. Regular testing with the ANU-1 helps maintain system reliability and prevents power outages.
• Industrial facilities —Industrial facilities rely on the ANU-1 for testing protective relays in their electrical systems. This ensures that machinery and processes are safeguarded against electrical faults, minimising downtime and maintaining operational efficiency.
• Renewable energy plants — At renewable energy sites like solar or wind farms, the ANU-1 plays a crucial role in testing and maintaining overcurrent relays, which are critical for the stable integration of renewable energy into the power grid.
• Electrical maintenance and repair services — The ANU-1 is a go-to tool for electrical maintenance professionals. It is used for on-site testing of overcurrent protection systems in various settings, ensuring these critical components function correctly and safely.

Rent the ANU-1 OCR checker today from Brandis Hire

Brandis Hire, Australia’s most trusted technical equipment hire company, is dedicated to simplifying the equipment rental process. We provide streamlined services, including hassle-free freight to and from customer locations, so you get the right equipment when needed.

Our focus on exceptional customer service is evidenced by our 4-hour free technical support with every hire, accessible 24/7. Rent the ANU-1 OCR checker now by submitting a booking request. Alternatively, you can contact us directly for personalised assistance.