Everything about Inrush current
Maximal instantaneous input current drawn by an electrical device when first turned on
Inrush current, input surge current, or switch-on surge is the maximal instantaneous input current drawn by an electrical device when first turned on. Alternating-current electric motors and transformers may draw several times their normal full-load current when first energized, for a few cycles of the input waveform. Power converters also often have inrush currents much higher than their steady-state currents, due to the charging current of the input capacitance. The selection of over-current-protection devices such as fuses and circuit breakers is made more complicated when high inrush currents must be tolerated. The over-current protection must react quickly to overload or short-circuit faults but must not interrupt the circuit when the inrush current flows. Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: Inrush currentA 5-minute orientation
- Skim a recent paper: Transformer Inrush Current Mitigation Techniques for Grid-Forming Inverters Dominated GridsInfluential work since 2022
- Pick up a classic book: Transformer magnetising inrush currentThe most-reprinted book on the subject
- Read the landmark paper: Computation of inrush current forces on transformer windingsCited 78 times
- Go sideways: Inrush current limiterA closely related topic
- Go sideways: Electronic componentA closely related topic
📖 Definitions
No dictionary entry for this exact phrase.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
Computation of inrush current forces on transformer windings
Estimation of Transformer Saturation Characteristics From Inrush Current Waveforms
Single-Phase Transformer Inrush Current Reduction Using Prefluxing
Analysis of Overvoltages Caused by Transformer Magnetizing Inrush Current
DC reactor type transformer inrush current limiter
Analytical Formula to Estimate the Maximum Inrush Current
Voltage compensation-type inrush current limiter for reducing power transformer inrush current
Distribution Transformer Magnetizing Inrush Current
🆕 Influential since 2022
Transformer Inrush Current Mitigation Techniques for Grid-Forming Inverters Dominated Grids
An Inrush Current Limiting Strategy for Virtual-Oscillator-Controlled Grid-Forming Inverters
ZVS and Inrush Charging Current Suppression Design for Switched-Capacitor Multilevel Inverters
Quasi-Z-Source-Fed Switched-Capacitor Multilevel Inverters Without Inrush Charging Current
Identifying Inrush Current for Large-Scale Wind Parks Transformers Based on Difference Function of Differential Current
📚 Books worth reading
- 📕Transformer magnetising inrush currentA. A. Hudson · 1966
- 📕Elimination of transient inrush currents when energizing unloaded power transformersJohn H. Brunke · 1998
- 📕Power transformer differential relay protection as affected by magnetization inrush currentDale Lloyd McLeod · 1952
- 📕Solid state techniques in electrical power systemsHosny Hassanein Salem · 1977
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
🔗 Related topics
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