CRX200S Handheld Optical Digital Test Set

1. What is the CRX200S mainly used for?

The CRX200S is a handheld digital protection relay test set designed for on-site commissioning in intelligent substations. It integrates testing, communication diagnostics, SCD analysis, and network packet inspection in one device.

2. What functions does it combine?

It includes:

• Digital relay protection testing

• Network packet analysis

• Fault record analysis

• Polarity testing

• MMS service testing

• Clock signal testing
  All in a single handheld unit.

3. How portable is the device?

It is compact, handheld, and only 0.78 kg. Charge once supports over 10 hours of continuous battery operation, making it ideal for field engineers who need mobility.

4. What type of display does it use?

The CRX200S is equipped with a 4.3-inch high-resolution capacitive LCD touchscreen, offering clear visuals and responsive touch control.

5. Why are four optical ports important?

The four-optical-port design provides strong versatility, allowing the device to support testing in:

• Transformer protection

• Busbar protection

• ATS (Automatic Transfer Switch) systems

• Other IEC 61850 digital applications
  This ensures wide coverage for different commissioning scenarios.

6. What protection testing modules are included?

It supports a full suite of protection functions:

• Manual test

• The state sequence test

• Group test

• Distance protection

• Overcurrent protection

• Zero-sequence protection

• Differential protection

• Harmonic protection

• Directional protection

7. Can it handle SCD/CID files?

Yes. It offers advanced SCD/CID processing, including:

• Direct SCD import and parsing

• Graphical IED connection visualization

• One-click CIDSCD consistency verification

• Automatic generation of secondary operation tickets

8. Does it support IEC 61850 communication testing?

Absolutely. The CRX200S covers:

• MMS service testing for automatic relay verification

• SV/GOOSE consistency checks

• GOOSE delay testing

• Real-time SV anomaly monitoring
  These features significantly enhance commissioning efficiency and system reliability.

9. What operating system does it use?

It runs on an embedded Linux operating system, offering stability, smooth performance, and robust reliability for field environments.

10. Is this device suitable for digital substation commissioning?

Yes. It is specifically designed to meet full on-site commissioning requirements for IEC 61850-based intelligent substations.

11. Does it support fault analysis?

Yes. It includes fault record analysis and packet inspection, helping engineers quickly identify communication or protection issues.

12. How does it improve workflow efficiency?

Features like automatic MMS verification, one-click CID/SCD checks, graphical IED mapping, and automatic report/ticket generation help engineers complete commissioning tasks faster with fewer errors.