خازن فشار قوی ویشای High Voltage Power Vishay ESTA

شرکت ایده و فرآیند آریو: ۰۲۱۸۸۳۲۰۹۲۹ - ۰۲۱۸۸۳۲۰۹۲۸

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