Can a DC series motor operate at no load condition?
Armature current of any DC motor depends upon load. Hence if load increases armature current (Ia) also increases and vice versa. At no load condition, load on the motor is zero hence armature current (Ia) is also zero. From equation (i) (If=Ia) hence field current (If) will also=0 at no load condition.
How are the windings of a DC motor different?
DC motors are usually classified on the basis of their excitation configuration, as follows -. Separately excited (field winding is fed by external source) Self-excited -. Series wound (field winding is connected in series with the armature) Shunt wound (field winding is connected in parallel with the armature)
Can a DC generator be used as a motor?
The same DC machine can be used as a motor or generator. Therefore, theoretically, construction of a DC motor is same as that of a DC generator. An electric motor is an electrical machine which converts electrical energy into mechanical energy.
How does the commutator in a DC motor work?
Commutator is made segmented to achieve unidirectional torque. Otherwise, the direction of force would have reversed every time when the direction of movement of conductor is reversed in the magnetic field. This is how a DC motor works!
Can a DC engine be run on a regular DC engine?
Yes you can run “some” DCC engines on regular DC if it has a dual mode decoder. Dual mode means that it can be run on DC as well as DCC. Most dual mode sound decoders can still use a lot of the sounds but you will have to have the paperwork to figure all of the sound activation’s.
Can a DCC decoder work on a DC engine?
Normally DCC decoders are designed to also work on DC power. I can’t think of any engines that come DCC-equipped from the factory that don’t use a ‘dual-mode’ decoder, or any decoders that aren’t OK with running on DC. However, if it’s a sound-equipped engine, it will most likely have a much higher current draw than his DC engines.
Can a DCC engine be run on a regular train?
If it is, you’re running trains. Yes you can run “some” DCC engines on regular DC if it has a dual mode decoder. Dual mode means that it can be run on DC as well as DCC. Most dual mode sound decoders can still use a lot of the sounds but you will have to have the paperwork to figure all of the sound activation’s.
Can a DC switch be removed from a DC Loco?
But if not, and if you have sufficient electrical knowledge, it would be possible to fit a DC / DCC change-over switch underneath or inside, taking power direct to the motor, bypassing the DCC circuitry. If it was originally a “DCC Ready” DC loco, that then had the DCC chip plugged in, the chip could be removed and replaced by a DC plug-in PCB.
