The Experts below are selected from a list of 31287 Experts worldwide ranked by ideXlab platform
Tai Qingyu - One of the best experts on this subject based on the ideXlab platform.
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circuit breaker air chamber and have two feeder cabinets of keeping apart of this circuit breaker air chamber
2015Co-Authors: Wang Junwei, Wang Bangtian, Sun Pengcheng, Li Haifeng, Wang Qizhong, Li Yanguang, Li Shukun, Zhang Zhibin, Li Zhongxia, Tai QingyuAbstract:The utility model relates to a circuit breaker air chamber and have two feeder cabinets of keeping apart of this circuit breaker air chamber, the upper and lower orientation in inferior officer's direct action type isolator edge sets up in the solid right side of sealing utmost point post in the box of circuit breaker air chamber, three -station isolation switch include the conductor, with the electrically conductive static contact of being connected of the generating line of every row of socket, moving contact and with moving contact fixed Connection in order realizing that the major loop switches on, the screw mechanism of three kinds of functions of isolation and Ground Connection, this three -station isolation switch plays couple isolation with setting up generating line three -station isolation switch on the generating line jointly, lie in isolator gu seal an utmost point post to right -hand projection, arrange isolator like this, effectively utilized the solid high space of sealing utmost point post and bottom socket, and need not be in prior art will reserve out the space of installing isolator on the direction of height of box inside to reduce the height of circuit breaker air chamber, and realized the possibility at line side installation isolator.
Osvaldo Miguel Micheloudvernackt - One of the best experts on this subject based on the ideXlab platform.
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mitigation of leakage Ground currents in transformerless grid tied inverters via virtual Ground Connection
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020Co-Authors: G Escobar, P R Martinezrodriguez, Samuel Iturriagamedina, Jonathan C Mayomaldonado, Jorge Lopezsarabia, Osvaldo Miguel MicheloudvernacktAbstract:This article studies the benefits of the virtual-Ground (VG) Connection for single-phase transformerless grid-tied inverters, which is used to mitigate the leakage-Ground currents (LGCs) issue. This article also proposes common-mode and differential-mode models of single-phase inverters connected to the grid through an $LCL$ output filter, which are used as a theoretical support. It is shown that LGCs are simply common-mode currents (CMCs) circulating through the Ground path, which represents a contribution in the development of an approach to find solutions in general scenarios. In most of the cases, these currents are produced by the existence of common-mode voltages (CMVs), which find a way through the Ground path established after the stray capacitances in the terminals of, for instance, photovoltaic (PV) panels. To prove the advantages of the proposed interConnection and for analysis, the single-phase full-bridge version of a two-level conventional inverter, as well as a neutral-point-clamped (NPC) inverter, is considered for model derivation and experimental validation.
Lin Lizhen - One of the best experts on this subject based on the ideXlab platform.
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high voltage load switch switch fuse combination electrical equipment
2017Co-Authors: Xue Baogen, Lin Dan, Peng Kaiken, Lin LizhenAbstract:The utility model discloses a high voltage load switch switch -fuse combination electrical equipment, including frame and combination electrical assembly, the both sides of frame are the fixed mounting panel that is equipped with respectively, and operating device installs on the mounting panel of frame one side, is equipped with the interlocking device who keeps apart axle, load shaft and Ground Connection axle on the mounting panel of frame opposite side, interlocking device includes first interlocking arm, second interlocking arm, third interlocking arm, fourth interlocking arm and balance, and third interlocking arm and balance pivot are established in the frame, the setting of third interlocking arm is between second interlocking arm and fourth interlocking arm, and second interlocking arm passes through the blocking lever linkage with third interlocking arm to be connected, and the balance setting is equipped with the constant head tank respectively on first interlocking arm, second interlocking arm, third interlocking arm and the fourth interlocking arm neighboring between third interlocking arm and fourth interlocking arm. The utility model discloses a set up interlocking device and realize keeping apart the mechanical interlocking of axle, load shaft and Ground Connection axle, guarantee electrical equipment's safe operation, safe and reliable.
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vertical paper back edition formula high voltage load switch switch fuse combination electrical equipment
2017Co-Authors: Xue Baogen, Lin Dan, Peng Kaiken, Lin LizhenAbstract:The utility model discloses a vertical paper -back edition formula high voltage load switch switch -fuse combination electrical equipment, which comprises a frame, the disconnecto, load switch, earthing switch and fuse, the pivot is equipped with and keeps apart the axle in the frame, load shaft and Ground Connection axle, the top of frame is equipped with the installation frame, the mounting hole has on the installation frame, load switch has three epoxy utmost point post, three epoxy utmost point post is respectively to its flange of protrusion formation all around, flange common formation and installation mounts hole matched with insulating barrier together side by side on the three epoxy utmost point post, be equipped with vacuum interrupter in every epoxy utmost point post, vacuum interrupter's upper end and isolator are connected, vacuum interrupter's lower extreme is connected with the upper end of fuse, the lower extreme and the earthing switch of fuse are connected. The utility model discloses the combined electrical apparatus adopts vertical paper -back edition mode, and the installation of being convenient for can improve the stable good of whole equipment, after accomplishing the paper -back edition of combined electrical apparatus, do not need to make alone again bus -bar room and switch gear room, make efficiently.
Frede Blaabjerg - One of the best experts on this subject based on the ideXlab platform.
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high efficiency high step up dc dc converter with dual coupled inductors for grid connected photovoltaic systems
IEEE Transactions on Power Electronics, 2018Co-Authors: Mojtaba Forouzesh, Yanfeng Shen, Keyvan Yari, Yam P Siwakoti, Frede BlaabjergAbstract:This paper introduces a non-isolated high step-up dc–dc converter with dual coupled inductors suitable for distributed generation applications. By implementing an input parallel Connection, the proposed dc–dc structure inherits shared input current with low ripple, which also requires small capacitive filter at its input. Moreover, this topology can reach high voltage gain by using dual coupled inductors in series Connection at the output stage. The proposed converter uses active clamp circuits with a shared clamp capacitor for the main switches. In addition to the active clamp circuit, the leakage energy is recycled to the output by using an integrated regenerative snubber. Indeed, these circuits allow soft-switching conditions, i.e., zero voltage switching and zero current switching for active and passive switching devices, respectively. The mentioned features along with a common Ground Connection of the input and output make the proposed topology a proper candidate for transformer-less grid-connected photovoltaic systems. The operating performance, analysis and mathematical derivations of the proposed dc–dc converter have been demonstrated in the paper. Moreover, the main features of the proposed converter have been verified through experimental results of a 1-kW laboratory prototype.
Wang Junwei - One of the best experts on this subject based on the ideXlab platform.
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circuit breaker air chamber and have two feeder cabinets of keeping apart of this circuit breaker air chamber
2015Co-Authors: Wang Junwei, Wang Bangtian, Sun Pengcheng, Li Haifeng, Wang Qizhong, Li Yanguang, Li Shukun, Zhang Zhibin, Li Zhongxia, Tai QingyuAbstract:The utility model relates to a circuit breaker air chamber and have two feeder cabinets of keeping apart of this circuit breaker air chamber, the upper and lower orientation in inferior officer's direct action type isolator edge sets up in the solid right side of sealing utmost point post in the box of circuit breaker air chamber, three -station isolation switch include the conductor, with the electrically conductive static contact of being connected of the generating line of every row of socket, moving contact and with moving contact fixed Connection in order realizing that the major loop switches on, the screw mechanism of three kinds of functions of isolation and Ground Connection, this three -station isolation switch plays couple isolation with setting up generating line three -station isolation switch on the generating line jointly, lie in isolator gu seal an utmost point post to right -hand projection, arrange isolator like this, effectively utilized the solid high space of sealing utmost point post and bottom socket, and need not be in prior art will reserve out the space of installing isolator on the direction of height of box inside to reduce the height of circuit breaker air chamber, and realized the possibility at line side installation isolator.
