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Causes of excessive motor current ⑶Power supply phase loss When one phase of the power line is disconnected or the contactor contact is burnt, causing one phase to be blocked, it will cause the three-phase motor to run without phase, causing the running two-phase winding to overheat through large current and even burn out. ⑷Three-phase power supply is unbalanced When the three-phase power supply is unbalanced, the three-phase current of the motor will be unbalanced, causing the windings to overheat.
Causes of excessive motor current ⑶Power supply phase loss When one phase of the power line is disconnected or the contactor contact is burnt, causing one phase to be blocked, it will cause the three-phase motor to run without phase, causing the running two-phase winding to overheat through large current and even burn out. ⑷Three-phase power supply is unbalanced When the three-phase power supply is unbalanced, the three-phase current of the motor will be unbalanced, causing the windings to overheat.
In condition, Electricity distribution system should be healthy and stable. Because of sensitive E equipments which operating response. For example, Earth Leakage trip Breaker. Mostly Distribution Transformer are Delta/star which means star(Y) connection will be Low voltage side(400v×3ph),so Neutral will be star Point. 3phase Load(current) is not equal or not in limit,there , Neutral Current will be increased which becomes Losses. So all Distribution Transformes must be checked and maintained 3phase Load current balancing.
Causes of excessive motor current ⑶Power supply phase loss When one phase of the power line is disconnected or the contactor contact is burnt, causing one phase to be blocked, it will cause the three-phase motor to run without phase, causing the running two-phase winding to overheat through large current and even burn out. ⑷Three-phase power supply is unbalanced When the three-phase power supply is unbalanced, the three-phase current of the motor will be unbalanced, causing the windings to overheat.
Sintered NdFeB magnets with high magnetic properties are widely used in Wind Power Generators and Hydropower Generators. High Hcb can help to avoid non-magnetism at high operating temperature. ??????The two types of generators need to work in harsh environment. They must withstand high temperature, coldness, sand, humidity and even salt spray test. Consequently the surface treatment of these magnets are very important.
Bundled conductors are an essential component in high voltage transmission. By bundling multiple conductors together, heat dissipation increases, allowing for higher current carrying capacity and reduced line losses. This method also helps mitigate the effects of corona discharge and electromagnetic interference. The overall result is increased efficiency and capacity, which are crucial elements in the energy sector.
Research aimed to characterize and understand recurrent cable joint failures under heavy environmental and electrical stresses in order to master the phenomena behind the threat, to assess vulnerability of the MV cable network and its components and to identify corrective measures to increase resilience of the power system against recurring extreme situations. Listen to lecture by Michel de Nigris #inmr #inmrworldcongress #electricalengineering #highvoltage #powersystems #energy https://lnkd.in/gUXJspPA
Causes of excessive motor current ⑶Power supply phase loss When one phase of the power line is disconnected or the contactor contact is burnt, causing one phase to be blocked, it will cause the three-phase motor to run without phase, causing the running two-phase winding to overheat through large current and even burn out. ⑷Three-phase power supply is unbalanced When the three-phase power supply is unbalanced, the three-phase current of the motor will be unbalanced, causing the windings to overheat.
