Results 201 to 210 of about 634 (239)

Flagellin nebulization enhances respiratory immune responses in the porcine model. [PDF]

open access: yesiScience
Baldry M   +13 more
europepmc   +1 more source

Development and Application of a Programmable Partial Discharge Calibrator

open access: yesIEEE Transactions on Instrumentation and Measurement, 2009
A programmable partial discharge (PD) calibrator composed of an arbitrary waveform generator that is series connected to a capacitor is described. The voltage waveform supplied by the generator is software controlled. The characteristics and capabilities of the calibrator are presented, and the procedures used for its characterization are discussed ...
Mario Chiampi, Gabriella Crotti
exaly   +4 more sources

Study on the calibration of partial discharge calibrator

open access: yes2008 Conference on Precision Electromagnetic Measurements Digest, 2008
The calibration of apparent charge, which can be traced to AC voltage and capacitance, for partial discharge(PD) calibrator is discussed. The methods of fast sampling measurement of peak-to-peak amplitude for step voltage by digital multimeter and the arithmetic in the automatic measurement of apparent charge by digital oscilloscope are focused on ...
null Liu Na   +2 more
exaly   +3 more sources

Application of a Programmable Partial Discharge Calibrator

Applied Mechanics and Materials, 2014
This paper presents the application of a programmable partial discharge calibrator, which used to test the performance of four partial discharge measuring systems by injecting a program controlled known charge sequence into the device under test. Performance of linearity, response to opposite polarity pulses, pulse resolution time and response to ...
Wei Dong Zhang, Zhang Wei Dong
exaly   +2 more sources

Miniature partial discharge calibrator synchronized by capacitive coupling

IEEE Transactions on Electrical Insulation, 1992
A new partial discharge calibrator is described. The device, suitable to operate in a floating position, generates synchronized pulses at the mains frequency. Synchronization is achieved by capacitive coupling to the mains with a cable wound around the power leads.
exaly   +2 more sources

Design of wireless partial discharge digital calibrator based on LoRa

2022 41st Chinese Control Conference (CCC), 2022
Daokai Wu, Xiaojun Wang, Chuxuan Huang
exaly   +2 more sources

Laboratory Calibration of HFCT Partial Discharge Detection Systems

2021 IEEE 4th International Electrical and Energy Conference (CIEEC), 2021
With the advantages of high sensitivity and non-intrusiveness, HFCT PD detection systems are implemented in order to monitor incipient faults of power cables. This paper introduces a laboratory calibration method for HFCT PD detection systems based on a Gauss pulse signal.
Yifan Wang   +5 more
openaire   +1 more source

A method for calibration of partial discharge calibrators

1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254), 1999
A method for calibration of partial discharge calibrators has been developed based on passive integration of the induced charge. The voltage over a known capacitor is measured by a calibrated digital sampling voltmeter and the charge is calculated as the voltage multiplied by the capacitance.
Ove Gunnarsson   +2 more
openaire   +1 more source

Performance Comparison of Various Partial Discharge Calibrators

2024 4th International Conference on Electronic and Electrical Engineering and Intelligent System (ICE3IS)
Umar Khayam
exaly   +2 more sources

Inverted diagram of calibration for partial discharge measuring

2008 International Conference on Condition Monitoring and Diagnosis, 2008
PD measurement is well-known method for inspection of high voltage equipment. However, its on-site application has some difficulties. This paper is dedicated to the calibration of PD measurement by electrical method; it is more precise, to the method of the introduction of charge into the tested object.
A. Ovsyannikov, S. Zhivodernikov
openaire   +1 more source

Home - About - Disclaimer - Privacy