Megger Tan delta attachment VLF SINE SYSTEM ACCESSORY

The tan delta test attachment enables a precise determination of the condition of the cable. Integral aging effects, such as the degree of humidity and “water treeing” can be simply recognized and quantified, making the tan delta test attachment the ideal instrument for monitoring the condition of the cable.

The tan delta test attachment can be used as a stand-alone system with the portable VLF sine systems or in combination with the integrated VLF sine test systems in vehicles.

The system achieves very accurate measurements because it measures at the high voltage potential and the measuring head can be placed very close to the test object.

Features of the Megger Tan Delta Test Attachment

The Tan Delta Test Attachment provides a comprehensive method for evaluating the condition of electrical cables. By measuring the loss factor ‘δ’ at high voltage potential, this system offers a level of precision that is crucial for accurate diagnostics. Its ability to place the measuring head very close to the test object enhances this accuracy, making it possible to detect even slight anomalies in the insulation.

One of the standout features of the Tan Delta Test Attachment is its real-time graphical display of the voltage, current, and loss factor. This immediate feedback allows for on-the-spot assessments of cable condition, enabling technicians to identify critical cables that may require immediate attention. This functionality not only improves the efficiency of the testing process but also helps in prioritizing maintenance tasks based on cable condition.

During testing, the system ensures that the voltage load on the cable is kept to a minimum. This approach not only protects the cable from potential damage during testing but also contributes to a safer testing environment. By minimizing the voltage load, the system extends the lifespan of the cable and reduces the risk of failure during the test.

Megger Tan delta attachment VLF SINE SYSTEM ACCESSORY specifications:

• Tan δ measuring range
• Measuring range:1 x 10-4 … 1 x 100
• Measuring accuracy:1 x 10-4
• Resolution:1 x 10-5
• Frequency:0.01 Hz … 10 Hz
• Testable cable capacitance:2 nF … 3 μF
• Measuring range current
• Test unit (MDU):1 μA … 25 mA
• Diverter box (TCU):1 μA … 1 mA
• Measuring range insulation resistance
• Measuring range:1 MΩ … 10 TΩ
• Power supply
• Test unit / diverter box:battery operated
• Charger:90 V … 240 V, 50/60 Hz AC (via power cable) or 12 V DC
• Operating time
• Test unit (MDU):16 hours (with TCU)32 hours (without TCU)
• Diverter box (TCU):24 hours
• Charging time:3.5 hours
• Operating temperature:- 25 °C … + 55 °C
• Storagetemperature: – 40 °C … + 70 °C