BQS-37A Insulating Paper Power Frequency Dielectric Loss Tester
Introduction: The insulating paper power frequency dielectric loss tester complies with GB1409, GB5654 and GB/T1693, ASTM D150-1998(2004) Test method for AC loss characteristics and dielectric constant of solid electrical insulating materials. It adopts the classic circuit of Xilin bridge. Attached 0-2500 digital high-voltage power supply and 100PF standard capacitors, and can be expanded to install external standard capacitor lines according to user requirements. BQS-37a high-voltage bridge is a new generation of high-voltage bridge launched by our company, which is mainly used to measure the dielectric loss (tgδ) and dielectric constant (ε) of industrial insulating materials. Features: 1. The bridge body is equipped with a potential tracker and a zero-pointing instrument, and the peripheral wiring is minimal. 2. The bridge adopts a decade switch with small contact resistance and long mechanical life to ensure the stability of measurement 3. The instrument has double shielding, which can effectively prevent the interference of external electromagnetic fields. 4. The internal resistance and capacitance elements of the instrument are treated with special aging, so that the technical performance of the instrument is stable and reliable. 5. The built-in high-voltage power supply has an accuracy of 3% 6. Internal standard capacitor loss < 0.00005, nominal value 100pF Technical parameter: Measurement range and error When the ambient temperature of this bridge is 20±5℃ and the relative humidity is 30%-80%, it should meet the technical instructions in the following table. At Cn=100 pF R4=3183.2 (Ω) Measurement item Measurement range Measurement error Capacitance Cx 40pF—20000pF ±0.5% Cx±2pF Dielectric loss tgδ 0-1 ±1.5% tgδx±0.0001 The altitude of capacitor installation and operation should not exceed 1000 meters, and the relative humidity of the ambient air temperature should not exceed 70%. The working frequency of the capacitor is 50Hz. The error of the measured value of the capacitor is not more than ±0.05% and the error of the nominal value is not more than ±3% Capacitor temperature coefficient ≤ 3×10-5 /℃ Capacitor pressure coefficient ≤ 3×10-3Mpa The loss tangent value of the capacitor is not more than 1×10-5 , 2×10-5 , 5×10-5 third gear.
Introduction: The insulating paper power frequency dielectric loss tester complies with GB1409, GB5654 and GB/T1693, ASTM D150-1998(2004) Test method for AC loss characteristics and dielectric constant of solid electrical insulating materials. It adopts the classic circuit of Xilin bridge. Attached 0-2500 digital high-voltage power supply and 100PF standard capacitors, and can be expanded to install external standard capacitor lines according to user requirements. BQS-37a high-voltage bridge is a new generation of high-voltage bridge launched by our company, which is mainly used to measure the dielectric loss (tgδ) and dielectric constant (ε) of industrial insulating materials.
