NR6200 series partial discharge detector
Partial discharge test is the main test item for the insulation of power equipment, and parameters such as the amount of partial discharge are important indicators for evaluating the quality of power equipment. The NR6200 series partial discharge detector (referred to as the NR6200 system in the following description) developed by our company based on the latest international and domestic technological progress has the characteristics of the current era. It integrates computer (program-controlled amplification, filtering technology) control, data acquisition, display and printing technology in one. Display all kinds of partial discharge information with brand-new two-dimensional and three-dimensional graphics, and have printing and storage functions. The various laws of partial discharge information are fully revealed. The NR6200 system can be single-channel or dual-channel input signals. The dual-channel input mode makes it have the functions of balanced loop detection and pulse polarity discrimination detection, which lays a solid foundation for solving the most confusing interference problems in partial discharge detection.
NR6200 system fully complies with GB7354 and IEC-270 "Partial Discharge Measurement" standard requirements in terms of its detection methods, measurement circuits, and technical performance parameters.
◆ Pure program-controlled working mode, more convenient for partial discharge measurement and analysis;
◆ Complete all-Chinese software, Chinese character prompt operation, easy to learn;
◆ Unique digital windowing technology can avoid the influence of interference on the measurement;
◆ Two-channel measurement and digital differential technology can flexibly form a pulse polarity discrimination or balance measurement loop, effectively suppressing interference pulse signals;
◆ It also measures the partial discharge signals of two samples or two measuring points of one sample at the same time, which can easily analyze the source of the partial discharge signals. It is convenient to establish measurement and positioning database.
◆ The capacitance range of the testable product is 6PF~250µF
◆ Ellipse scanning time base:
Frequency 50 (inner), 100, 150, 200, 400HZ
Rotation: With 30° as one gear, it can be rotated 360°
Working method: ellipse-extension-straight line
◆ The high-frequency time base ellipse can be adjusted to the normal size according to the input voltage (10～250V), its intake power is less than 1 volt ampere, and there is an automatic overload protection device. The display unit uses a 124×104mm2 rectangular oscilloscope with brightness and focus adjustment knobs.
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