Fully Digital PD Test Sets

MOEORW-WPD-1S Fully digital PD test sets

The MOEORW-WPD-1S Fully Digital Partial Discharge Tester sets is a digital testing device equipped with a 10.1-inch touchscreen, a 32-bit microcontroller architecture, and supports one-click self-calibration and data upload, making it easy to operate.

The instrument has high detection sensitivity, strong anti-interference capabilities, and a rich combination of frequency bands, making it suitable for partial discharge detection and insulation assessment of various types of medium and high voltage electrical equipment.

The MOEORW-WPD-1S partial discharge (PD) test set is a new type of digital partial discharge test instrument developed by our company. It retains the advantages of the product while reducing its size and further optimizing its performance. It adopts a 10.1- inch touch screen to replace the traditional operation method of oscilloscope tube and physical knob, making its functions more complete, easier to use, and more reliable.

Partial discharge tester employs a 32- bit high-performance microcontroller circuit combined with touchscreen operation, which not only extends the instrument's lifespan but also provides the following functions: one-button automatic calibration; adjustable high-voltage test voltage division ratio; and serial communication for uploading test data. The instrument features high detection sensitivity, a wide range of applicable test samples, a large dynamic range of the amplification system , multiple frequency band combinations (nine types), and strong anti-interference capabilities. When used in conjunction with a calibration pulse generator and input unit, this instrument is a practical partial discharge testing instrument widely used by power departments, manufacturers, and research institutes.

1.The equivalent capacitance range of the testable samples is 6pF to 250µF.

2.Measurement range: 0.1 pC - 10000 nC

3. Number of channels: Single channel

4. Detection sensitivity and allowable current (see Table 1)

Table 1. Detection Sensitivity and Allowable Current Value of Input Unit

5. Elliptical Scan Time Base

(1) Frequency 50/60, 100, 150, 200, 400Hz

(2) Rotation: In increments of 30°, it can rotate up to 120°.

(3) Working method: Ellipse - Sine wave - Straight line

6. Display Unit

It uses a 10.1-inch capacitive touchscreen.

7. Amplifier

(1) 3dB low-frequency end frequency fL _: 10, 20, 40kHz (selectable)

(2) 3dB high-frequency end frequency fH _: 80, 200, 300kHz selectable

(3) Gain adjustment: coarse adjustment with 6 levels and a gain difference of 20±1dB between levels; fine adjustment range >20dB.

(4) Asymmetry of positive and negative impulse response <1dB

8. Time window

(1) Window width: Adjustable, 5°～170° at 50Hz

(2) Window position: Each window can be rotated from 0° to 170°.

(3) The two time windows can be opened separately or simultaneously.

9. Pulse peak display

Touchscreen display: shows 1 decimal place (greater than or equal to 10 pC) or 2 decimal places (less than 10 pC), with an error of ±3% (full scale).

10. Test voltage display

(1) Range 150kV

(2) Input impedance: >1MΩ

(3) Display: Touch screen display, displaying to 1 decimal place.

(4) Error: ±1%

11. Test frequency display

Error: less than ±1%

12. Zero-standard system

The zero mark is consistent with all elliptical scan frequencies.

13. Structure

(1) Dimensions: 370mm (width), 460mm (depth), 215mm (height)

(2) Weight: Approximately 12.5 kg