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Can a DC series motor with speed control be connected on AC supply?
Wiki User
∙ 12y ago
A dc series motor with speed control can be connected on ac supply because dc machines are totally reversible.
Wiki User
∙ 12y ago
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When the dc motor is connected across an AC supply then?
It depends on the construction of the motor. If the field winding is connected in series with the armaturewinding, the motor is like a universal motor and will probably operate normally. If the field winding is connected in parallel with the armature, the motor will not run, but will draw current, make noise and get hot.
How do you determine which windings are field on a series DC motor?
Both the supply wires that enter a series motor is the field windings the field is split in two and is connected at the split to the brushes that is connected to the commentator of the armature, so the current pass thru the first half of the field then thru the armature and then thru the other half of the field. With a parallel DC motor the two fields is in series and the two wires is connected to the brushes so is the supply.
Basic principle of commutator motor meter?
It is based dynamometer principle with ironless motor with a wound armature having a commutator. The two coils are connected in series with supply and armature coil is connected in parallel to it.
Why it is dangerous to supply power to an unloaded series connected DC motor?
Starting torque becomes very high due to which motor can attain very high speed and can damage its body and connected equipments.
Why is dangerous to supply power to an unloaded series connected dc motor?
Starting torque becomes very high due to which motor can attain very high speed and can damage its body and connected equipments.
When ac motor is connected with DC supply?
Basically AC motors would not work on DC supply but there's however an exception for a Universal motor also known as a series motor. This is the only motor as far as I know that work on both AC and DC.
What happens if load of DC series motor is disconnected?
In D.C Shunt motor, the field winding is connected parallel with the armature winding.. If you remove the supply to armature winding, the motor will stop after some time.
Why is it dangerous yo supply power to an unloaded series connected dc motor?
Starting torque becomes very high due to which motor can attain very high speed and can damage its body and connected equipments.Read more: Why_it_is_dangerous_to_supply_power_to_an_unloaded_series_connected_DC_motor
What is a DC shunt motor?
A DC shunt motor is a motor using DC supply with the the inductor connected parallel to the armature.
Is universal motor type of inductin motor?
No,look at the connection diagram for Universal motor. The Field and the armature windings are connected in series. But, in induction motor, the rotor end terminals are sorted by a kind of rings.That is rotor is apart from the supply.
Will a 3 phase motor work on grounded B phase?
If the motor is connected to an ungrounded delta supply service there will be no effect on the operation of the motor. If the motor is connected to a wye system supply service and the B phase grounds out, the motor's overload protection would take the motor off line from the electrical supply.
What is the operating principle of thyromat control system for cranes?
The THYROMAT is connected in series with the stator supply voltage. The control unit varies the stator voltage of the slip-ring motor by adjusting the firing angle of the inversely connected (parallel) thyristors in each of the three phases. The motor torque is proportional to the square of the stator voltage (T a V2 - where T is the motor torque and V is the stator voltage). The speed of the motor is measured by the frequency of the rotor. Reversing the direction of motor rotation is achieved by switching externally mounted reversing contactors at zero current.
