Siemens 1PQ Series AC Motor

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Q:Difference between energy consumption braking of DC motor and AC motor
Energy consumption braking is a form of braking.It is divided into DC motor energy consumption braking and AC motor energy consumption braking.
Q:How can I change the alternating current welding machine into a DC welder?
At the output end of AC welding machine ~ ~ two terminals, one rated welding output voltage is greater than 2 times the no-load voltage, rated output welding current is greater than 2 times the output current of the rectifier.
Q:What are the advantages of AC motors?
AC motor has become the most common motor because of the great development of AC power system.
Q:AC motor: use gear variable or frequency conversion?
Each has its advantages and disadvantages.The gear case, can only be very variable, only a few or dozens of fixed speed, cost, is not very high, but when the gear there is the problem of the transmission gear must be stopped, otherwise it will damage the gear structure. But one of the great advantages of gear reduction is that the power is small and the value is very small. Only mechanical structural friction losses. That is, great torque can be gained after slowing down.
Q:How to distinguish between DC motor and AC motor?
As communication is easier to obtain and easier to carry, so most of the electric machines we use today are driven by AC motors.
Q:What's the difference between DC motor carbon brush and AC motor carbon brush?
DC motor carbon brush and AC motor carbon brush is the same, so there are AC and DC dual series motor.
Q:AC motor control chip
With two relays (or IGBT what) do isolation, change any of the two lines after the state of the line on the line. For example, when the A-C-B is turned on, the A-B-C is switched on, and if it is reversed, the drive relay (or IGBT) becomes a reverse.
Q:Can any 220V AC motors be reversible?
Many single-phase motors now have only three lines. This motor is the factory, when the factory, will start winding and main winding, an end directly connected to the internal. If the motor is not modified, it can not be reversed by external means.
Q:Can the welding line of AC welding machine be dead?
In fact, if we discuss the electric shock of the two wire from the wider range, the harm to the human body is varied. The human body in the welding process in contact with the two line, the current acting on the human body in the contact area will produce electricity burns, electric brand or the central nervous reflex and strong muscle contraction caused tissue fracture and fracture mechanical injury; arc welding process, the industry protection is not the time, can make it happen an eye disease or make the metal particles penetrate the skin causing skin metallization; in addition, there is a more severe shock.
Q:Why are electric hair dryers divided into direct current motors and alternating current motors? What are their differences?
DC motor: fast speed, light weight, simple structure, easy to damage, big sound making

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