Three phase Alternator

The three-phase generator - also known as "alternator" - is an induction machine operated as a generator that produces a speed-dependent three-phase alternating current using an electrical field. Since the electrical system is designed as a DC power system, this three-phase voltage must still be rectified. The control technology also comes into play: the voltage level should remain constant independently of the engine speed – the hybrid multifunction controller handles this.

In this educational system, a three-phase electric motor drives the compact alternator. The generator itself has power diodes on 4 mm safety sockets for measurement and interruption that are just as accessible as the three-phase winding.

The excitation current and the voltage can be captured on the connection plate, and connections are available

• to the battery monitoring (sensing)
• the load and error detection, and
• to the rotation speed detection.

The generator's output voltage can be led as a function of temperature or by the engine control unit.

In connection with lighting components, special high-current loads and a vehicle battery, the complete electrical system can be assembled!

COMPONENTS OF EQUIPMENT SETS:

1	738 711	Compact alternator
1	738 631	** Motor f. Generator Experiments, 1.0 kW
1	738 632	Belt drive for vehicle 1:3
1	738 963	TDI Control Relay for Preheating System
1	738 90	Parallel Glow System
1	738 10	Ignition switch
1	738 18	Auxiliary headlamp
1	738 76	Field Regulator, Generator

Measuring equipment

1	524 013SKFZ	** Sensor-CASSY 2 Starter, Automotive
1	524 013	** Sensor-CASSY 2
1	524 0033	* WiFi adapter for Sensor-CASSY
1	738 985	** Automotive meter
1	524 076	** AUTO-BOX i
1	738 9991	** DC/AC clamp-on current probe

Accessories

2	732 56	Coupling 1.0
2	732 58	Coupling guard 1.0
1	726 10	Panel frame T150, two-level
1	738 03	Battery connection unit
1	738 04	Car battery 12V
1	738 043	Vehicle battery connecting kit
2	738 05	Connection leads I, set
2	500 59	Safety bridging plugs, black, set of 10
1	500 592	Safety bridging plugs with tap, black, set of 10
1	738 9821	Safety experiment cables, set of 51
1	501 46	Connecting leads, 19 A, 100 cm, red/blue, pair
1	775 011DE	LIT: A2.1.1.2 Threephase alternator
1	775 011EN	LIT: A2.1.1.2 Threephase alternator

Supplementary equipment

1	738 01	Cable and plug box
1	500 593	Fault simulation plugs, black, set of 10
1	738 021	Battery charger, automatic

Articles marked with ** are additionally required.

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

Materials and equipment for teaching Physics labs, advanced science experiment apparatus, Leybold