خازن فشار قوی ویشای High Voltage Power Vishay ESTA
خازن های ولتاژ بالا به نوعی خازن اطلاق می شود که از یک بوش سرامیکی، یک گروه عنصر خازن و یک پوشش تشکیل شده است. خازن های ولتاژ بالا دارای ویژگی های کم افت و وزن سبک هستند. Individual Power Factor Correction The power factor correction capacitor is connected directly to the terminals of the consumer and will be switched together with it. The advantages of this method are: Relief of the conductor s and switches, no capacitor switches or discharge resistors are needed, and the installation is simple and cheap. The individual compensation is the best solution for large consumers (e.g. motors), particularly if they are in continuous operation. Individual Power Factor Correction of 3-Phase Motors The motor and the capacitor are connected in parallel. They are both switched in and out by means of one and the same switchgear and also monitored by a common protective device. A discharge device is not required, because discharging takes place through the motor windings. The switchgear must be rated to be capable of withstanding the inrush current of the capacitor and the connection s must be capable of withstanding the full load current of the motor. The capacitor, in this case, has to be installed in close proximity to the motor. Individual Power Factor Correction of Power Transformers The direct connection of the capacitor to a power transformer, which is jointly switched in and out, is feasible and permissible both at the H.V. side and the L.V. side. In cases where harmonics exist in the , the should be checked to determine whether the capacitors and the power transformer are connected in series and create a resonance. Care should be taken not to overcompensate the power transformer during low load operation in order to avoid an unacceptable rise in voltage. Individual Power Factor Correction of Welding Machines The output of capacitors for welding transformers and resistance welding machines only needs to be in the range of 30% to 50% of the nominal transformer capacity. For welding rectifi ers, a capacitor output of about 10% of the nominal capacity of the transformer/rectifi er is suffi cient. Group Power Factor Correction The power factor correction capacitor is connected to the secondary distribution system which feeds a number of individual motors, operating either continuously or at intervals. The motors and the capacitors are each switched in and out separately and are monitored by separate protective devices. The cap
خازن های ولتاژ بالا خازن فشار قوی ویشای High Voltage Power Vishay ESTA High Voltage Vishay ESTA
شرکت ایده و فرآیند آریو
تهران > تهران
تلفن ۱: ۰۲۱۸۸۳۲۰۹۲۹
تلفن ۲: ۰۲۱۸۸۳۲۰۹۲۸
آدرس: سهروردی جنوبی، خیابان نوبخت، پلاک 2، واحد 7