Later when the mains and generator power conversion, we should first consider the special nature of the generator, make sure the mains power failure, the generator automatically starts the generator power until the index has reached a stable value to output dual power equipment suppliers, and has interconnected devices. Conversion time by selecting and using ATS dual power automatic transfer switch 1. In accordance with the relevant national and industry specifications, dual power conversion for fire-fighting equipment, the conversion time is the sooner the better, but considering the current supply of technical conditions specified in the 30s within. When the fire-fighting equipment is in operation period, if a sudden power failure, will inevitably lead to power dual power conversion device for a long time due to the conversion will stop the operation and impact of fire-fighting equipment to use, it is necessary to increase the secondary control links continue to work to ensure that fire-fighting equipment, so ATS should be chosen in preference products fast conversion time. 2. For emergency lighting, according to the time of the design of the current practice, the general power grid of the city as emergency lighting power supply. In order to meet the needs and conducive to safe, allowing the use of the city grid. 3. When using a generator to power as an emergency lighting, the whole time the generator start and conversion should not exceed 15s. Quadrupole ATS Selection and use of ⑴ According IEC465.1.5 stipulates normal switch between power supply and standby generator application quadrupole-type switch. Leakage protection with dual power switch should be used quadrupole-type switch. According to the requirements of dual power equipment manufacturer specializing in the selection of ATS dual power automatic transfer switch shall be specific functions and requirements to determine whether the use of quadrupole ATS. With leakage protection ATS ATS choice whether you want to install leakage protection, depending on the nature of the use and characteristics of the load, in order to prevent electric shock and to ensure personal safety, the need to install leakage protection, but when the fire load in order to ensure the continuity of supply and reliability, do not want to install leakage protection, both of which contradict each other, it is recommended for use in non-fire ATS supply side and load side of the total leakage protection should be installed. 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 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, 5 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 dual power conversion device wholesalers contact ATSE contacts, plus the current motor rated current of 12-16 times, and withstand 10-12 times starting current, Unable to 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. Buying dual power unit, double-Electric (certified), dual power device consists only of Thai Industries Limited Shanghai Branch Yueqing provided. Shanghai only Thai Industrial Co., Ltd. Yueqing Branch (www.cnats.cc) is Wenzhou, Zhejiang Province, switch leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. 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