Make your own simple generator from a can of film
The simplest generator is to wind a coil and let the magnet spin inside, which becomes a brushless alternator. In this article, a film box is used as a frame for winding the reel. You can also use medicine bottles, plastic water pipes, etc. In short, you must adapt to local conditions. The aim of our small technological production is to. use all the materials around us...
Tools/raw materials?
Enameled wire (diameter 0.213 mm)
10 cm bicycle spokes long as rotating shaft
2 high strength magnets (glue used in the center of rotating shaft)
Light emitting diode
Film box
< p> 2 sections of plastic straw (to avoid friction between the rotating shaft and the spool)Steps/Method?
1 Drill two small holes dinto the film box and insert the rotating shaft. There must be a gap on one side, otherwise the tree will not fit. ?
Reading the steps .2 Insert two small pieces of straw into the small holes in the film can so that the rotating shaft can rotate freely inside the straw.
Reading the steps .3 Wind the enameled wire 700 times on it. Do you now know the function of these two sections of straw? Without them, the rotating shaft would be tangled in the enameled wire and unable to move.
Reading the steps.4 Use a knife to scrape the insulating paint off the enameled wires at both ends of the coil and wrap them around the two pins of the light-emitting diode.
Reading the steps.4 Use a knife to scrape the insulating paint on the enameled wires at both ends of the coil and wrap them around the two pins of the light-emitting diode.
p> Reading in steps. 5 Turn the shaft. The magnet rotates in the coil and the magnetic flux in the coil changes, producing an electric current.
The power of the impact drill is 800 W, but the generator has only 1500 W and cannot be started. What is the best way to get started?
To reduce tension, the cross section of the cable must be increased.
To increase the voltage, the insulation level of the cable must be increased
The use of 690V must be from an economic point of view
Voltage 110V 450V 690V 1100V level
>690/1.732=398.4
It depends on the nature of the equipment 690V If it is a three-phase asynchronous motor connected in Y, change it directly to Δ. Shaped connection and connect it to a 380V three-phase asynchronous motor. It can be used as long as it looks good.
In the past, 660V household power supply was only used in mines. Add 5% of the tension, which corresponds to 690 V.
In the European low voltage distribution network, 400 V is the recommended value. Most commonly used voltage, "Electricity Supply and Consumption" (2003---3) published an article by two European authors, believing that using a voltage level of 690 V is often more flexible and practical. They analyzed and calculated a combined cycle syngasification plant (180 MW load) as an example. The results show that changing the motor from 6000 V to 690 V can significantly reduce costs. The upper limit capacity of a 690 V motor is estimated to be 630 to 800 kW. After taking into account factors such as cables, switches, transformers, distribution cabinets and network losses, the cost can be further reduced by 8%. The author believes that when enterprises need a large number of motors from 200 to 630 kW, the voltage level of 690 V is worth choosing; In the near future, the voltage level of 690 V will be widely used in European industrial systems.
I wonder if the actual maximum power of your generator can reach 1500W? If yes, then the 800W electric drill starting problem is caused by the starting problem. It is recommended to connect a 1000W electric oven wire in series every time you start the electric drill, and then short circuit the electric oven wire after starting. the electric drill starts. Of course, it's more troublesome.