Product Details

   3-Channel PD Testeris a new instrument developed by our company。This instrument features high sensitivity, wide amplifier dynamic range, broad test specimen applicability, and easy operation. It employs advanced anti-interference components and a unique gate display circuit, delivering strong anti-interference capability with four high-frequency elliptical scanning modes. It is suitable for HV product type testing, factory testing, new product development testing, and quantitative PD testing of motors, instrument transformers, cables, bushings, capacitors, transformers, surge arresters, switchgear and other HV electrical equipment. Suitable for field use by manufacturers, research institutions, and power utilities.

Main Technical Specifications

1．Test sample capacitance range6PF--250μF

2. Detection sensitivity (see Table 1)

Table 1

3. Amplifier frequency band:

Low: 10kHz, 20kHz, 40kHz selectable

High: 80kHz, 200kHz, 300kHz selectable

4. Amplifier gain adjustment:

Coarse: 6 steps, inter-step gain 20±1  db; fine adjustment range≥20db.

5. Time window:

①Window width: adjustable range15°～150°;

②Window position: each window rotatable0°～170°；

Two windows can be opened independently or simultaneously.

6. Discharge meter:

Digital meter: displayed as 3½LED digital value

       0-100.0Error<±5%(at full scale)

7. Elliptical time base:

Frequency: 50, 100, 150, 200, 400Hz.

②Ellipse rotation: 30° per step, rotatable up to 150°rotation.

③Display mode: Ellipse— Line－ Sinusoidal.

8. Test voltmeter:

Range: 100kV (extendable)

② Display: 3½digital voltmeter indication

①      Accuracy: better than ±5%（at full scale）

9. Zero marking function for PD identification.

10. A, B, C three-channel test interface for convenience.

Note: The above information and Technical Parameters are compiled and published by Yangzhou Darui Electric Co., Ltd.