Determination of inrush current characteristics of lighting products

2020 ◽  
Keyword(s):  
Inrush Current ◽  
Current Characteristics

Analysis of zero-mode inrush current characteristics of converter transformers

2021 ◽  
Author(s):  
Zhichang Liu ◽  
Xin Yin ◽  
Yuanlin Pan ◽  
Wei Xi ◽  
Xianggen Yin ◽  
...  
Keyword(s):  
Zero Mode ◽  
Inrush Current ◽  
Current Characteristics

Spectroscopic and electrical studies of all- trans β-carotene crystals

1967 ◽  
Vol 301 (1465) ◽  
pp. 173-193 ◽  
Keyword(s):  
Electronic Absorption Spectra ◽  
Dark Conductivity ◽  
Electrical Measurements ◽  
Absorption Bands ◽  
A Value ◽  
Polarization Behaviour ◽  
Current Characteristics ◽  
Β Carotene ◽  
Weak Peak

Single crystals of all- trans β -carotene have been grown and spectroscopic, optical and electrical properties measured. Electronic absorption spectra have been measured at liquid nitrogen and room temperature, and the polarization of the absorption bands in the mono-clinic form determined. The polarization behaviour is briefly discussed. The electrical measurements include a determination of the dark conductivity, giving a value for the electrical activation energy of 1·45 eV. Some crystals were observed to give unusual voltage current characteristics and to give rise to current pulses at a steady applied voltage. Photoconductivity measurements show a weak peak at 25000 cm -1 in the region where maximum light absorption occurs, and a much stronger peak at 13300 cm -1 . The various processes which could be responsible for this and for the origin of the latter peak are discussed.

Electrical Stress Analysis of Switching Transients in 115 kV High Voltage Substation

2015 ◽  
Vol 781 ◽  
pp. 333-336
Author(s):  
Ratana Kem ◽  
Warunee Srisongkram ◽  
Phanupong Fuangpian ◽  
Thanapong Suwanasri
Keyword(s):  
Stress Analysis ◽  
Capacitor Bank ◽  
Circuit Breaker ◽  
Inrush Current ◽  
Circuit Breakers ◽  
Power Circuit ◽  
Electrical Stress ◽  
Transient Recovery Voltage ◽  
Recovery Voltage

This paper presents electrical stress analysis from capacitor bank switching in a 115 kV substation. The actual data of all equipment in substation are used in the simulated circuit by using ATP/EMTP program. The cases study focused on the determination of proper value of series reactor, effect of circuit breaker pole discrepancy on inrush current, line model selection and load variation. Electrical stress from energizing inrush current as well as transient recovery voltage and rate of rise of recovery voltage imposed on power circuit breaker during capacitor bank has been analyzed. The obtained results are used as guidelines for analysis of the electric stresses on substation equipment while capacitor banks are energized. Moreover, those results can be used to select the proper rating of circuit breakers to withstand the electric stresses in the transmission network.

scholarly journals A new scheme of zero-sequence overcurrent protection of converter transformer based on zero-mode inrush current characteristics in station area

2022 ◽  
Vol 8 ◽  
pp. 1257-1263
Author(s):  
Yuanlin Pan ◽  
Zhichang Liu ◽  
Xin Yin ◽  
Wei Xi ◽  
Xianggen Yin ◽  
...  
Keyword(s):  
Zero Mode ◽  
Inrush Current ◽  
Overcurrent Protection ◽  
Zero Sequence ◽  
Current Characteristics

Determination of Magnetization Characteristics of a Three-Phase Transformer Using Inrush Current Waveform

2020 ◽  
Author(s):  
Dohitha B. Yapa ◽  
Danuka Yasuranda Bentharavithana ◽  
Nirod Rathnaweera ◽  
Thushari Wimalarathna ◽  
Joseph Rohan Lucas ◽  
...  
Keyword(s):  
Inrush Current ◽  
Current Waveform ◽  
Three Phase
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