Recent content by akselj

Your project has a lot of problems. 1: Your generator is too small, 6500W, propably much less if it is converted to run on wood-gas. 2: Different voltages, can be overcome, but at great cost. 3: Too low power, you must have at least 20 KW. 4: AC motor is not suited to car operation, low starting...

Is 7.5 Hp enough for the car, as far as i remember the weakest Civic was 55Hp. In my opinion you are wasting time and money on the project.

There is no good reason whatever to use 1 phase 220V motors if you have acces to 3 phase 380 V. The 3 phase motors are cheaper and more reliable, many small motors running 1 phase is really 3 phase motors with a capacitor to provide the turning field, these motors have a much lower torque than...

You should consider an external cooling fanfor the motor.

I worked as an electromecanics in the -70s, and then it was common practice to use european 380V 50 Hz motors for machines built for export to USA running on the 440V 6o Hz. Of course the speed will be 20% higher, but that is no problem for the motor.

Before you start any messurements on live wiring you must know the voltage, and the needed insulation and safety distances. I understand from your question that you are unfamiliar with electric safety, if that is correct, my best advice is to find somebody who has the skills and tools for the...

I agree with the writers that suggest the transformer solution, but only because of the high number of motors. If it was a single or a few, I would scrap them and install new motors with the correct data, rewinding is much too costly, at lesst in high wage countries. Greetings Aksel.

You can not use a transformer between the VFD and the motor as the output is not a sinus wave, the losses in the trafo will be very high. Aksel

I have built several multi pump controllers using Danfoss VFC with cascade option. One pump is always frequency controlled, and the rest can be single or variable speed, the VFC is controlled by a pressure gauge keeping the pressure constant. In simple setups the main pump, frequency...

I would suggest that you activate the mecanical brake at each stop, when the hoist is nearly stopped by the electrical brake. If you only use it as a last safety it is very likely that it is stuck in rust or dirt. Elevator safety brakes for cable operated systems are not overspeed brakes, they...

I guess that the resistance is so low that a normal multimeter reads 0. Greetings Aksel

itsmoked Danish house installations are normally 3 Phase 400 V +N +Gnd. European standard voltage. Light and outlets are 230V (Phase +N) divided into 1 phase 13 A groups. Stoves and many washing mashines (mainly older types) are 3 phase (1 phase for motor, 2 for heating) often 16 A groups The...

I dont understand American standards, in Europe nobody would think of installing 1 phase 1200 Amp. In Denmark almost every house has at least 3x400 V 20 Amp supply. Greetings Aksel

The resistance of the cold filament is very low and your powersupply is probably not able to give the staring current, the advice from IRstuff might work. Why do you want to run it on DC, any 10A transformer will do the job. Greetings Aksel

Say! just how do clocks run on 50Hz anyway? Best Regards Pennpoint If you bring your mains controlled clock you will get a short workday, but clocks are built for 50 or 60 Hz. Greetings Aksel, Denmark