نتایج جستجو برای: air gap length

تعداد نتایج: 639352  

Journal: :Energies 2021

There is a necessity to design three-phase squirrel cage induction motor (SCIM) for high-speed applications with larger air gap length in order limit the distortion of flux density, thermal expansion stator and rotor teeth, centrifugal forces, magnetic pull. To that effect, lowers power factor, efficiency, torque density SCIM. This should inform engineers take special care during process SCIM b...

2015
Jianlin Hu Xingliang Jiang Fanghui Yin Zhijin Zhang

DC flashover performance of ice-covered composite insulators with a parallel air gap (CI/PAG) is an important technical consideration when such insulators are used to isolate ground wires for the purpose of DC ice-melting. Tests on tension and suspension types of CI/PAG were thus carried out in the artificial climate chamber to investigate their DC icing flashover performance. The influences of...

Journal: :The journal of international advanced otology 2017
Ömer Faruk Birkent Turgut Karlıdağ Figen Başar Şinasi Yalçın İrfan Kaygusuz Erol Keleş Abdulvahap Akyiğit

OBJECTIVE The aim of this study was to determine the air-bone gaps in adults with mixed-type hearing loss using air-conduction auditory brainstem response (ABR) latencies. MATERIALS AND METHODS Thirty adults with mixed-type hearing loss (study group) and 30 adults with normal hearing (control group) were included in this study. Before performing ABR measurements, ear, nose, and throat examina...

Journal: :international journal of electrical and electronics engineering 0
mansour ojaghi زنجان - خ صفا -کوچه شهید علوی - سمت راست - پ 7 mahdi sabouri

multiple coupled circuit modeling of squirrel-cage induction motors, or winding function approach is the most detailed and complete analytical model used to analyze the performance of the faulty induction motors. this paper extends the above-mentioned model to a saturable model including variable degrees of the saturation effects using an appropriate air gap function and novel techniques for lo...

Journal: :Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 2001
S Iurato G Marioni M Onofri

OBJECTIVE To compare hearing results in patients who underwent ossiculoplasty for Austin-Kartush group A impairments (incus erosion, malleus handle present, stapes superstructure present) with the results in patients with an intact ossicular chain who required only myringoplasty. The literature on hearing results of ossiculoplasty with different types of prostheses and different techniques is r...

2017
De Z. Li Wilson Wang Fathy Ismail

Induction motors (IMs) are commonly used in various industrial applications. To improve energy consumption efficiency, a reliable IM health condition monitoring system is very useful to detect IM fault at its earliest stage to prevent operation degradation, and malfunction of IMs. An intelligent harmonic synthesis technique is proposed in this work to conduct incipient air-gap eccentricity faul...

Journal: :energy equipment and systems 0
mehrdad makki department of electrical engineering, kermanshah university of technology, kermanshah, iran siroos hemmati department of electrical engineering, kermanshah university of technology, kermanshah, iran

in the permanent magnet linear synchronous motor (pmlsm), force ripple is harmful, useless and disturbing. the force ripple is basically composed of two components: detent force and mutual force ripple. this force is influenced by the geometric parameters of the permanent magnet (pm) motors; such as width, thickness and length of the magnet poles, length and thickness of the rotor and stator, a...

2012
Jinliang He Shunchao Wang Rong Zeng

A subgridding formulation of Agrawal coupling equations of transmission line with branch and distributed electromagnetic excitation is proposed. This algorithm enables us to solve the transmission line system using different temporal and spatial step on different branches. The method is used to calculate the lightning induced over-voltage on the transmission line installed with air gap componen...

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