Product Description
The IEC 62067 Cable Thermal Cycling Test System is designed for extra-high-voltage cable systems and long-duration thermal cycling applications.
For EHV cable prequalification testing, the thermal cycling system needs to operate reliably for extended periods while maintaining stable current and temperature conditions.
IEC 62067-related prequalification programs can involve long-duration heating-cycle voltage testing, with industry sources describing an 8,760-hour regime for applicable EHV cable systems.
Key Functions
- EHV cable thermal cycling
- Long-duration heating cycle
- Automatic conductor temperature control
- Continuous current regulation
- Temperature monitoring
- Automatic cycle management
- Long-term data logging
- Alarm monitoring
- Over-temperature protection
- Over-current protection
- Emergency shutdown
- Remote monitoring options
Typical Applications
- 220 kV cable systems
- 330 kV cable systems
- 400 kV cable systems
- 500 kV cable systems
- EHV XLPE cables
- Submarine EHV cables
- Offshore wind transmission cables
- EHV cable joints and terminations
- Cable prequalification laboratories
Key Buyer Concerns
Long-Term Reliability
For long-duration testing, customers need confidence that the heating system, transformer, control system, sensors, and cooling equipment can operate continuously.
Temperature Stability
Even small temperature deviations can affect test repeatability. Therefore, temperature monitoring and automatic control are important parts of the system.
Data Security
Long tests generate a large amount of test data. Automatic data logging and backup help prevent data loss.
Safety
Long-duration unattended testing requires multiple levels of protection, including over-current, over-temperature, emergency stop, and abnormal-condition alarms.
FAQ
How long can the system operate continuously?
The system can be engineered for long-duration operation according to the customer's test program.
Can it support 8,760-hour testing?
A system can be specifically engineered for long-duration prequalification applications. The final configuration should be confirmed according to the cable system, test standard, site conditions, and required operating profile.
Can the system record data continuously?
Yes. Continuous monitoring and data logging can be incorporated into the control system.
