CDF8200A Capacitance and Dissipation Factor (Tan Delta) Tester

CDF8200A Tester Overview and Applications

The CDF8200A is designed for capacitance and dissipation factor testing on electrical equipment and insulating oil. These measurements can be applied when checking transformers, instrument transformers, transformer bushings, and capacitors, as well as when testing insulating oil. This range of applications makes the tester relevant to electrical inspection and maintenance work where the condition of insulation is an important consideration.

Capacitance and tan delta results offer complementary information for an assessment: the instrument measures both properties so users can review them as part of their testing process. The CDF8200A supports measurements using internal or external high-voltage arrangements, with connection options for grounded and ungrounded test objects. The specified ranges and test configurations are listed below to help users match the instrument’s capabilities to the equipment and test setup required for an application.

Measurement Features and Operating Workflow

FEATURES：

The CDF8200A uses a variable frequency method and digital filtering technology to eliminate power frequency interference, supporting accurate dissipation factor and capacitance measurement. Its built-in high-voltage standard capacitor and high-voltage frequency converter provide integrated components for the stated test functions. For different test-object grounding arrangements, two cable connection methods are available, covering grounded and ungrounded objects.

The tester can also use an external high-voltage power supply and standard capacitor for testing. In its automatic sequence, it completes boosting, measurement, step-down, and calculation work. Voltage output monitoring helps keep the output voltage stable during testing. This integrated workflow can make test operation more straightforward by bringing the required sequence and result calculation together within the instrument.

For documenting and handling results, the internal memory stores up to 100 test results. A USB flash disk can be used to transfer data and update software, while the built-in thermal printer can print test results. A built-in Bluetooth connection supports connection to a tablet PC, allowing operation of the tester via wireless internet and improving security. Together, these functions support result retention, transfer, and review as part of routine test work.

• Variable frequency measurement and digital filtering to eliminate power frequency interference.
• Internal high-voltage standard capacitor and high-voltage frequency converter.
• Two cable connection methods for grounded or ungrounded test objects, with external high-voltage supply and standard capacitor testing also supported.
• Automatic boosting, measurement, step-down, and calculation, with output voltage monitoring.
• Internal storage for 100 test results, USB data transfer and software updates, a thermal printer, and Bluetooth connection to a tablet PC.

Technical Specifications

Review the output, measurement, and operating specifications below when selecting test settings and planning a measurement. The capacitance ranges vary according to whether the internal or external arrangement is used and whether the stated voltage is 10KV or 500V. The listed accuracy and resolution values describe the specified measurement performance.

SPECIFICATIONS:

Voltage output range： 100 - 10000V AC
Max current output： 0 - 200mA AC
Accuracy of voltage output：±1%U
Output frequency: 45 – 65Hz
tgδ range：0 - 0.1
tgδ accuracy：±1% rdg ±0.0004
tgδ resolution：0.0001
Capacitance range：
When Internal 10KV：3pF - 60000pF
When internal 500V：60pF - 1.2μF
When external 10KV：3pF - 1.5μF
When external 500V：60pF - 30μF
Capacitance accuracy：± 1% rdg ± 1pF
Capacitance resolution：0.1pF
Testing current range：10μA - 5A AC
CVT measurement output: 3 – 50V AC, 3- 30A AC
Power supply： 198 - 264V AC， 47- 63Hz
Working environment: -20°C to 50°C
Humidity ≤90%RH Non-condensing
Dimensions: 558×357×300mm Weight: 29kg

Practical Testing and Maintenance Value

For maintenance teams and electrical testing personnel, the CDF8200A brings measurement, calculation, result storage, and printing functions into a single instrument. The choice of cable connections and internal or external test arrangements helps accommodate different test setups, while the stated output and measurement ranges provide reference points for planning work. Users should select the appropriate connection and operating method for the equipment being tested and follow the relevant testing procedures.

Stored results can help maintain a record for later review, and USB transfer provides a way to move test data for further handling. Printed results offer a direct record at the test location, while tablet connectivity allows wireless operation as specified. These functions can be useful in inspection workflows that require measurements to be recorded and referenced during equipment maintenance. The CDF8200A is therefore suited to applications where capacitance and dissipation factor measurements are required across the listed electrical equipment and insulating oil.