Product — Partial discharge tester - pulse current method — PD-2101 Partial discharge tester
Product name:PD-2101 Partial discharge tester
Executive standard:IEC60270、GB7354 Partial discharge measurement and relevant standards of various products
Other name:Partial discharge instrument, partial discharge detector, pulse current partial discharge detector, off-line partial discharge tester
Component:Partial discharge instrument, correction pulse generator and detection impedance < br >
Note: high voltage test power supply shall be equipped for use
Purpose & brief description |
● PD-2101Partial discharge tester is mainly used to test the insulation level of various insulating materials, insulating structures, electricians, power products and other power frequency voltage withstand and partial discharge level. ● Applications: power product manufacturers, power operation departments, scientific research institutions and colleges and universities. ● Application products: all kinds of insulating parts, medium voltage switchgear, GIS high voltage switch, cable and cable accessories, transformer, power transformer, high voltage circuit breaker, capacitor bushing, motor, lightning arrester, photovoltaic products and other high voltage electrical components and insulating materials. |
Test purpose |
● The purpose of partial discharge test is to find the defects of equipment structure and manufacturing process. For example, the local electric field intensity inside the insulation is too high; Metal parts have sharp corners; The insulation is mixed with impurities or partially defective, and the electrical connection between metal grounding parts and conductors in the product is poor, so as to eliminate these defects and prevent damage to the insulation caused by partial discharge. ● Partial discharge refers to the non penetrating discharge between the electrodes of the insulating medium in high-voltage electrical appliances under the action of high electric field strength, so the function of partial discharge test can detect the insulation hidden danger of power equipment. |
Technical parameter |
● Capacitance range of testable object: 6pf~250μf ● Detection sensitivity: <0.02pc(When the capacitance is 50pf) ● Amplifier:Low frequencyfL20、30、50、80kHz Optional High frequencyfH 200、300、400、500kHz Optional Gain adjustment range > 120db, inter gear gain difference20±1db Asymmetry of positive and negative impulse response<1db ● Time window: the window width is 1°~360°, and the window position can be rotated arbitrarily ● Test voltmeter: voltage error < 3% F.S ● Partial discharge detection channel: 1, 2, 4 and 6 channels are optional |
Technical features |
● With the unique anti-interference mode in China, it can greatly attenuate the spatial interference of field test. ● Strong resistance to penetration and impact. ● The precision of partial discharge instrument is high, which is level 5. ● High speed and large capacity data acquisition card is adopted, which can continuously collect partial discharge data, with good data reproducibility and high accuracy. ● Test, analysis (multi parameter analysis, two-dimensional atlas analysis, three-dimensional atlas analysis) and data saving. Report generation and printing ● It can display partial discharge waveform (ellipse) at the same time. Sine wave. Straight line (three ways). Partial discharge and test voltage. ● In the process of calibration and test, the gain is automatically adjusted without human intervention, and the operation is simple. ● It can adapt to power frequency (50Hz), triple frequency (150Hz) and variable frequency power supply up to 400Hz, and automatically track the frequency phase of the test power supply according to the test voltage frequency. ● Door opening and window opening can be set arbitrarily, with a minimum of 1 degree. |
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