lab testing equipment ac high voltage tester hv inductance resonant test machine for generators I. Product description With the development of power system, the capacity of the power operating equipment becomes larger and larger, and the voltage level ...
A peak PETCO2o20.50 mm Hg during exercise had a high sensitivity of 91.7% and specificity of 77.8% in male patients. Peak O2 pulse o6.25 ml per beat in female patients had a sensitivity of 57.1% and high specificity of 93.3% to predict event-free survival. Kaplan–Meier event-free ...
Some hypothesized sociodemographic factors for increased exposure and severity of COVID-19 include living in a long-term care facility or being institutionalized, age (older), gender (mixed findings), having comorbidities (including high blood pressure, diabetes, obesity, immunocompromised status, ...
III.AC Resonant High Voltage Test Instrument Parameter - Rated Capacity: 108kVA; - Output Voltage: 0-108KV - Output frequency: 30-300Hz; - Input Power: 220V/380V ±10 %single phase, 50Hz - Waveform distortion rate: output voltage distortion ≤ 1%; ...
testing the condition of the vacuum chamber (13) of an electric vacuum switch or circuit breaker is based on the measurement (32) of the emission current or x-ray radiation (35, 34) between the fixed and moving contacts when partially separated and subjected to a DC or AC test voltage (...
high velocity of the air at the exit of the leak. However, the air volume velocity q(t) is not constant, but a function of the sound pressure pbox(t) in the enclosure and the voice coil displacement x(t). The flow diagram on the right-hand side describes the generation by using a...
第 20 页共 147 页 ISO/IEC 17025 认可证书 № Instrument Measurand Calibration Method Range Expanded Uncertainty (k=2) Air:(40～ 7500)m3/h,DN50～ DN300 Urel=0.30%(Highpressureloop) (0.001～0.1) L/min,DN2~DN15(gas) U=1.1%FS(SoapFilmmethod) (0.1～12) L/min,DN2~DN15 (gas) U=...
... mode: imported AC servo motor and driver;testingoftorqueand torsion angle: high-precision symmetricaltorquetransducer fortorquetestingand ... universal testing machinePTX series torsiontorquecomputer-controlled universal testing machine PTX series ...
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