CRA650Si Protection Relay Test Set

1. What applications is the CRA650Si designed for?

The CRA650Si is ideal for on-site commissioning, maintenance, troubleshooting, and secondary device verification in substations, power plants, and distribution networks. It supports both conventional and hybrid protection systems.

2. How portable is the device?

The tester weighs 4.5 kg, making it only one-third the size and weight of comparable relay test sets. It is designed for handheld, portable field use.

3. What are the output capabilities?

• Current: 6020 A or 3040 A

• Voltage: 60130 V
  It includes dynamic error correction and supports 0.05% high accuracy, ensuring precise test results.

4. What relay protection tests can it perform?

The CRA650Si includes a comprehensive test suite:

• Manual and sequence tests

• Harmonic and full-set tests

• Load shedding

• Distance protection

• Zero-sequence & overcurrent

• Differential protection

• Harmonic blocking
  It supports both analog and hybrid output modes.

5. Does it support IEC 61850 digital substations?

Yes. It supports:

• IEC 61850 SV & GOOSE message output and analysis

• SCD/CID file handling (if included in software)

• IEC 60870-5-104 communication protocol
  This makes it suitable for both traditional and digital substation environments.

6. What communication and connectivity options are available?

The device supports:

• WiFi

• Bluetooth

• 4G

• GPS/Beidou for multi-unit synchronization (ideal for distributed tests)

7. What display does it use?

It is equipped with a 9-inch HD capacitive touchscreen for intuitive operation and clear test visualization.

8. How long can the CRA650Si operate on battery power?

• Standby time: 8+ hours

• 3-phase 5A continuous output: >1 hour
  Its high-capacity lithium battery ensures strong performance for field testing.

9. Does it support remote or cloud-based testing?

Yes. With built-in wireless connectivity, it supports cloud-enabled remote testing, allowing engineers to run or monitor tests off-site.

10. What is multi-unit synchronization used for?

With GPS/Beidou, multiple CRA650Si units can synchronize time signals for applications like:

• Distributed protection testing

• Wide-area measurement verification

• Simultaneous multi-point data capture

11. Does it include SV/GOOSE analysis?

Yes. It supports real-time:

• SV packet decoding

• GOOSE message analysis

• Communication anomaly detection

12. What optional features are available?

Two optional modules can be added:

1. 8-channel low-signal analog output used for IED/relay analog low-level testing

2. RoLa wireless transmission provides wireless secondary current phase checking and cable-free data transmission

13. What operating system does it run on?

The tester runs on a Linux OS, ensuring stable operation and fast response for complex testing tasks.

14. What makes the CRA650Si different from similar testers?

• Much smaller and lighter than typical six-phase relay testers

• Supports analog + digital + hybrid outputs

• Integrates IEC 61850 + 104 protocol testing in a handheld form

• Offers wireless phase check (RoLa) as an optional function

• Strong remote testing and synchronization capabilities