Electrical equipment tramcars. (1986)

Chronicle of 1899.

The view from the horse-drawn carriage to the horses.

The movement of the tram through the city.

Chronicle of 1920.

Electric trams and cars on the street.

Traffic jam from trams on the street.

Tram on the street of a modern city.

A cartoon explaining the rotation of the frame in a magnetic field.

The design principle of electric machines.

The design of traction engines of tram cars.

Electric motor of tram car T3.

Traction engine.

Components of the traction engine.

Cartoon explaining the operation of the traction engine.

Engine generator.

The location of the engine in the car.

Fan, cooling engine.

Components of the generator engine.

A cartoon explaining the operation of DC motors.

The low-voltage voltage of the 24V generators is necessary to power the control circuits, charge the battery, for the door drive motor, the electric motor of the accelerator rotating the crosspiece, the fan motor of the cabin heater, windscreen wipers, electric bell.

Low-voltage voltage is also necessary for powering internal and external lighting equipment.

Switching devices of the power circuit.

A cartoon explaining the main electrical devices of the T3 car.

Multi-position switch (accelerator).

Components of the accelerator.

A cartoon explaining the principle of operation of inductive shunts.

Electromagnetic contactors.

The composition and work of contactees.

Pedals of electric switches of controllers.

The small pedal is for braking.

A cartoon explaining the composition and operation of the power circuit of a tram car.

In parallel, the work of the mechanisms is shown.

The current collector of the car.

The control lever.

The safety pedal is pressed, the brake pedal lock is removed, the starting pedal is pressed.

The passage of current through the electrical circuit of the car.

The accelerator crosspiece is set in motion, with the help of which the current in the traction motor circuit is constantly maintained and the car rides.

The location of the accelerator in the car.

A cartoon explaining the operation of the accelerator.

The speed of the car depends on the accelerator.

The principle of operation of the accelerator.

After the acceleration of the car, the driver releases the starting pedal and the car continues to move by inertia.

When the starting pedal is released, the control controller shaft is set to its original position.

Cartoon explaining the gradual reduction of current in the traction motor circuit.

Operation of an electric circuit when moving by inertia.

Pressing the brake pedal.

There comes an electric braking of the car.

Braking of the car at the stop.

Operation of the power circuit during braking, cartoon.

The electric energy released by the motors is absorbed by the accelerator rheostats, resulting in a braking force.

When the current is reduced to 140A, the mechanical brake interlock relay is switched off and the car stops.

The tram is moving through the city.