Product Introduction:
Professional Manufacturer of Portable Partial Discharge Testeris based on the advanced theories in the field of partial discharge instruments both domestically and internationally, adopting advanced technology and circuits, and has been continuously improved through extensive trial use by users in various regions. While retaining the advantages and functions of previous generations, it is more refined in design, more convenient in use, and more reliable in performance.
Technical Specifications:
1. Host Parameters
1. Testable capacitance range: 6pF~250µF
2. Detection sensitivity and allowable current (see Table 1)
3. Elliptical scanning time base
(1) Frequency: 50 (internal), 100, 150, 200, 400Hz
(2) Rotation: adjustable in 30° steps, rotatable 360°
(3) Working modes: Ellipse — Expanded — Straight line
(4) High-frequency time base ellipse can be adjusted to normal size according to input voltage (10～250V), with power consumption <1 VA and automatic overload protection
4. Display unit
Uses a 124×104mm2 rectangular oscilloscope tube with brightness and focus adjustment knobs
5. Amplifier
(1) 3dB low-frequency cutoff fL: 10, 20, 40kHz selectable
(2) 3dB high-frequency cutoff fH: 80, 200, 300kHz selectable
(3) Gain adjustment: coarse adjustment in 6 steps with 20±1dB difference between steps, fine adjustment range >20dB
(4) Asymmetry of positive and negative pulse response <1dB
6. Time window
(1) Window width: adjustable, 15°～ 150° at 50Hz
(2) Window position: each window can be rotated 0°～ 170°
(3) Two time windows can be opened separately or simultaneously
7. Pulse peak meter
(1) Linear scale pointer meter 0—100 error ±5% (based on full scale)
(2) Logarithmic scale pointer meter 0—10—100 error ±5% (based on full scale)
(3) Digital meter: 3.5-digit LED digital display 0—100 error: ±3% (based on full scale)
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
