Partial Discharge Measruement Device

Three Channel Partial Discharge Tester

type:ZC-254B
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  • Product Introduction

ZC-254B Three channel partial discharge detector is a new digital liquid crystal display partial discharge detector developed by our company to solve the problems of low brightness and short service life of the oscilloscope tube of the traditional partial discharge instrument.

The instrument has the advantages of high detection sensitivity of mature products, large sample capacitance coverage, wide range of applicable samples, complete input units (detection impedance) and multiple frequency band combinations (nine kinds). The operation, structure and installation form are fully compatible with previous models, which is convenient for the upgrading of existing system equipment.


  • Product Parameters
Capacitance range of testable products6 PF -- 250 μF
Detection sensitivity
range of the tuning capacitorSensitivity(PC)(unbalanced circuit)effective values of Permissible current

unbalanced circuit

balanced circuit
0~25~100PF0.0230mA0.25A
25~100~400PF0.0450mA0.5A
100~400~1500PF0.06120mA1A
400~1500~6000PF0.10.25A2A
1500~6000~25000PF0.20.5A4A
0.006~0.025~0.1μF0.31A8A
0.025~0.1~0.4μF0.52A15A
0.1~0.4~1.5μF14A30A
0.4~1.5~6.0μF1.58A60A
1.5~6.0~25μF2.515A120A
6.0~25~60μF525A200A
25~60~250μF1050A300A
Amplifier bandLow end10kHz, 20kHz, 40KHz optional
High end80kHz, 200kHz, 300kHz optional
Amplifier gain adjustmentRoughly adjust the sixth gear, and the inter gear gain is 20 ± 1 db
Fine tuning range > 20dB

Time windowWindow width: adjustable range: 15°- 150°
Window position: each window can rotate 0°- 170°
 The two time windows can be opened separately or simultaneously
Discharge meterDigital meter: 3 ½ LED digital meter displays 0-100.0, error < ± 5% (based on full scale)
Elliptical time baseFrequency: 50Hz, 100Hz, 150Hz, 200Hz, 400Hz
Elliptical rotation: with 30 ° as the first gear, 120 ° rotation can be made
Display mode: ellipse - straight line - sine
Test voltmeterRange: 100kV (expandable)
Display: 3 ½ Digital voltmeter indication
Accuracy: better than ± 5% (based on full scale)
Dimension500 * 500 * 210 mm (W * D * H)
Net Weight16kg


  • Product Features

1、After the partial discharge signal is digitized, the liquid crystal display is used to replace the traditional oscilloscope display.

2、 The operation is exactly the same as the traditional analog partial discharge test instrument, which is simple and easy to learn.

3、Freely select ellipse, straight line and sine display mode

4、Digital windowing technology can avoid the influence of interference on measurement.

5、Any phase windowing, single window or double window optional, and the ellipse rotates 150 degrees.

6、It can freeze the current discharge map, and observe and analyze the static partial discharge pulse.

7、The current discharge spectrum can be saved to realize the traceability of test results.


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