Dual power automatic transfer switch inductive loads affect us all know the motor load is a typical inductive load, the following example to illustrate an electric motor. Practical engineering common to such a situation, a large electric motor powered off, and then restore power within a very short period of time, and the motor is not likely to occur simultaneously in both cases. While the motor is also an initiative of the load, it can be stored magnetic energy. For an operation of the motor suddenly lost power, electric power supply unit dual cutting magnetic field lines can be regarded as a generator, producing a voltage - self-excitation voltage. Gradually slowed down as the rotor rotates, the self-excited voltage drops initial value (380v) when 37% of the time taken to become a time constant. The time constant large motors generally 4-5s PC-class dual power supply units, five times the time constant is the same as when the power converter. Since the motor resistance is not going to change, when the voltage rises to 2 times the rated voltage, the current will rise to 2 times the rated current. Because the flow is 6-8 times the operating current, so the moment of contact ATSE contacts conversion, plus the motor current is 12-16 times the rated current, and withstand 10-12 times the starting current Wenzhou dual power supply unit, you can not withstand the impact of motor power conversion brought about 12 times higher than the rated current. If an increase in the starting current of the motor which is often caused by severe mechanical damage Why power conversion. There are many practical engineering motor load must also be powered by a dual power supply, such as: fire pumps, life pumps, air conditioning, elevators, ventilation fans. And since you can consider two methods: ATSE First use with delay conversion function. Delay conversion meant here: ATSE moving contact all the way to leave power, when stopped in the middle of a position (at least after a time constant), then the power is turned the other way. This is a negative approach, contrary to the introduction of standby power is to make the load as much as possible without power purposes. And different motors, two-way power supply delay time is not easy to determine. ATSE to solve this problem arising, must be able to adjust the delay time. Another solution is the same phase switching. Our dual power automatic transfer switch on the switch and the market time to compare STQ4 series dual power automatic transfer switch is my factory developed its own new high performance automatic transfer switching equipment CB-level dual power supply units, given by two GM Series Plastic insulation voltage 690V and below, AC 50Hz dual power emergency power supply system can be used to complete the automatic conversion between power and standby power off power to the load. Mechanical switch currently used on the market, generally divided into two kinds of electromagnetic drive and motor drive, electromagnetic drive conversion faster, like a general is 2-4s. Therefore, according to the load off time permitted to choose ATSE forms and types. Here emphasize that: A fast conversion speed again, and you can not omit the UPS. ATSE, UPS is the emergency power supply system from the different interactions can not be replaced electrical equipment. Select ATSE conversion time, to distinguish it from time to determine whether or not to convert. To clear whether the conversion of judgment, one should first look at the power load on the power supply requirements, primarily power supply voltage and frequency, so ATSE also monitors the input voltage and frequency of the power supply. Most load above; frequency of more than 95% of the rated frequency. In some special cases, power requirements may be higher. The delay occurs when the system is in the selection so we, the grid is often affected by outside interference and voltage fluctuations (frequency fluctuations are relatively rare), then the low voltage to a value other than the choice often), taking into account the conversion time of ATSE seconds level, this set the delay time for the second level can be. When setting the conversion of delay as the consumer, to determine a clear understanding of ATSE conversion time delay difference between mechanical conversion time. PC-class dual power system, dual power supply units, only Thai Thai Industrial Co., Ltd. Yueqing by Shanghai Branch only offer. Shanghai only Thai Industrial Co., Ltd. Yueqing Branch (www.cnats.cc) strong, credible, in Wenzhou, Zhejiang switch industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead only Thai Industries and you hand into the brilliant, for a better future!