Results 31 to 40 of about 2,008 (171)

Investigation on the Performance of Metal Oxide Varistors in Energy meter [PDF]

open access: yes, 2015
An Energy meter includes current and voltage input, a surge protection section, a measurement device. The measurement device will generate power consumption measurements based on current input and voltage input.
, Srinath kv, Dr. Andhe Pallavi
core   +2 more sources

Two basic ways to realise DC circuit breakers

open access: yesThe Journal of Engineering, 2019
As a key element of the DC grid, the technology of DC circuit breakers (DCCBs) still have difficulty to be widely used due to its large cost and volume. This paper studies the basic principle and its realisation methods for DCCBs.
Zheng Xu   +3 more
doaj   +1 more source

Effect of electro-thermally induced degradation on the capacitance of metal oxide varistors [PDF]

open access: yes, 2017
: In this study, changes in the capacitance of MOV-based arresters resulting from thermal stresses are analysed. Low-voltage MOV samples are artificially degraded at different thermal stresses, while the simultaneously applied ac field was kept constant.
Bokoro, P., Muremi, L.
core   +2 more sources

Flexural performance of textile fine grained mortar containing risk husk ash as a partial cement replacement in reinforced concrete beams [PDF]

open access: yes, 2018
External strengthening of RC beam become a popular method to reduce deterioration. Due to highest demanding on external strengthening, a new innovation was introduced called as textile fine grained mortar (TFGM).
Mohammad, Noor Shuhada
core  

Three‐Level NF‐TDN Controller for AGC in Thermal‐Hydro‐Gas Power Systems Integrated With TCPS Under Nonlinear Conditions

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
Automatic generation control (AGC) is vital for preserving frequency and power balance in modern interconnected power systems (IPSs), which are increasingly challenged by nonlinear dynamics, parameter uncertainties, and unpredictable load variations.
Getaneh Mesfin Meseret, Mohammad Ghiasi
wiley   +1 more source

Measuring the energy handling capability of metal oxide varistors [PDF]

open access: yes, 2001
Metal oxide varistors are widely used in many power electronics circuits to protect against transient over voltages. Certain applications are very demanding on the energy handling capability of the varistors.
Ahmed, M. M. R.   +3 more
core   +1 more source

Condition monitoring and deterioration analysis of metal oxide varistor

open access: yesJournal of Electrical Engineering, 2018
With the growing demand for application of metal-oxide varistor (MOV) in low-voltage electronic circuits for overvoltage protection, it is necessary to ensure its performance to avoid the short-circuit and the line-to-ground fault during operation.
Guoming Wang   +3 more
semanticscholar   +1 more source

Control strategy of novel hybrid commutated converter based on reverse blocking integrated gate commutated thyristor for commutation failure mitigation

open access: yesHigh Voltage, Volume 10, Issue 3, Page 546-554, June 2025.
Abstract Commutation failure (CF) is an inherent problem faced by line commutated converter high voltage direct current (LCC‐HVDC) technology. To completely solve the problem of CF, we have proposed a novel hybrid commutated converter (HCC) technology based on reverse blocking integrated gate commutated thyristor, which can utilise two methods for ...
Zongze Wang   +7 more
wiley   +1 more source

Mechanism and suppression of breaking overvoltage of DC circuit breakers

open access: yesHigh Voltage, Volume 10, Issue 1, Page 32-46, February 2025.
Abstract The occurrence of breaking overvoltage in a DC circuit breaker (DCCB) poses a potential threat to the safe operation of a DC grid. Based on the structure of the ±10 kV three‐terminal DC distribution network, this paper sets up the medium‐voltage DCCB and formulates a fault protection strategy.
Lu Qu   +7 more
wiley   +1 more source

Comparison of Surge Voltage Reduction and Economic Efficiency of DC SSCBs According to MOV and RCD Snubber Combination

open access: yesIEEE Open Journal of the Industrial Electronics Society
Metal oxide varistor (MOV) is a nonlinear resistive element whose resistance decreases rapidly when the applied voltage exceeds a threshold value. A dc solid-state circuit breaker (SSCB) uses MOVs or MOV with resistor-capacitor-diode (RCD) snubber ...
Seong Jin Lim   +3 more
doaj   +1 more source

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