Power - Generation Automatic Controller (STQ2F) STQ2F for grid - automatically switch between two power generators. When the grid voltage is less than 85% of the rated voltage or power outage, SGQ2F generation command issued a request for power generation. When the power voltage reaches 85% of rated voltage dual power switch manufacturers, starting with the power line disconnect the load circuit, automatically switch to generator power. When the grid voltage returns to normal, then they automatically return to the power grid, and the power to issue instructions to request a power outage. SGQ2F belong to vote since the complex type. Power delay by potentiometer on the front panel to the right of the regulator (the factory setting for 5-10s), return to the delay by the potentiometer on the front panel to the left to adjust (the factory setting for 5-10s) STQ2 and STQ2F dual power switch means for comparing a Manual operation device Advantages: simple structure, small size (installed in a standard XGN cabinet), switching reliable. Disadvantages: can not achieve automatic control. 2. electric operating device 3. Advantages: electric operation can be realized in situ and remote automatic switching control. When all the way into the line loss of power, it can automatically switch to another feed line. Operation can be manually switched as needed. Disadvantages: slightly larger investment and requires the use of two XGN cabinet (width 800mm) 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 OEM dual power switch, 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 dual power switch controller, can be regarded as a generator dual power switch, resulting in 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 of contact ATSE contacts conversion, added to the current motor rated current of 12-16 times, and withstand 10-12 times starting current, unsustainable due to motor power conversion brought about 12 times higher than the impact of 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. ATSE dual power switch, dual power switch, just stop by the Shanghai-Thai Thai Industrial Co., Ltd. Yueqing Branch provided. 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!