Results 31 to 40 of about 2,008 (171)
Investigation on the Performance of Metal Oxide Varistors in Energy meter [PDF]
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
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]
: 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]
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
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]
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
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
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
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
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

