Megger VLF Sine Wave 62 kV- Test And Diagnostic System

The Megger VLF Sine Wave 62 kV Test and Diagnostic System is a state-of-the-art solution for the testing and analysis of medium voltage cables. This system is designed to offer not only robustness and portability but also high performance with its integrated tan delta diagnostic feature. The compact design makes it ideal for use in various field conditions, ensuring reliability and ease of transport.

The multifunctionality of the 62 kV tester is one of its standout features. It supports both Very Low Frequency (VLF) and Direct Current (DC) testing methodologies. Moreover, this system is equipped to handle sheath testing and fault pinpointing effectively when paired with the step voltage probe ESG NT/NT2. This capability is particularly valuable for locating faults in cable sheaths, which is critical for maintaining the integrity and functionality of underground cables.

An optional internal tan delta feature further enhances the tester’s utility by allowing it to evaluate both the integrity and condition of the cables. This is crucial for preventative maintenance and ensuring the longevity of cable infrastructure. The smart VLF system is designed to automatically adjust the test frequency according to the cable length, which facilitates reliable testing of cables up to 25 km in length, even for those rated at 35 kV.

One of the key advantages of the VLF Sine Wave 62 kV system is its independence from external computers for field operations. It comes equipped with intuitive operating software and substantial internal memory, which allows for the automatic evaluation and storage of all test data. This feature simplifies the testing process and enhances productivity on-site.

Data transfer and report generation are streamlined with the system’s connectivity options. Whether through a USB port or an upcoming wireless connection to mobile devices, transferring datasets is straightforward. The included PC software, MeggerBook Lite, assists in processing these datasets into comprehensive reports. Additionally, the device itself provides options for reviewing all measurements either immediately after testing or at a later time, offering flexibility in data management and analysis.

MEGGER VLF Specifications:

• VLF sine wave :0 … 44 kVRMS / 0 … 62 kVp
• DC voltage: ± 0 … 62 kV
• VLF rectangular voltage: 0 … 62 kV
• Accuracy :± 1 %
• Resolution:0.1 kV
• Source output current :0 … 40 mA
• Accuracy :± 1 %
• Resolution:10 μA
• Frequency range:0.01 Hz … 0.1 Hz autom. frequency adjustment
• Output load: 1 μF @ 0,1 Hz at 44 kVRMS 10 μF maximum test capacity
• Measuring frequency: 0.01 … 0.1Hz
• Measuring range: 10-4…100
• Accuracy: 10-4
• Resolution:10-5
• Sheath testing :0 … 5 kV, 0 … 10 kV, 0 … 20 kV DC 0 … 5 kV, 0 … 10 kV, 0 … 20 kV DC
• Sheath fault pinpointing:Pulse rate 0.5:1, 1:2, 1:3, 1:4 and 1.5:0.5
• Safety: autom. discharging of the test object
• Input voltage:100 V … 264 V, 50/60 Hz, 2000 VA
• Duty cycle: continuous
• Internal memory: For at least 1000 measurements
• Dimensions (W x H x D): 544 x 520 x 416 mm
• Weight: 59 kg
• Protection class:IP 21
• Operating temperature: – 20 °C … + 55 °C
• Storage temperature: – 20 °C … + 70 °C