Apparatus is designed primarily for demonstration of the basic principles of transformers.
It consists of a laminated U-core with laminated I-core, both with 32 x 25 mm cross section to form a closed core of size 102 x 127 mm.
Heavy aluminium alloy stand with removable clamping rods, 2 pole pieces, each 65 x 30 x 25 mm with one end cone shaped, to accept support rod and shading ring.
Poles also have a hole drilled through lengthwise to take a light beam. 300 turns 600 turns 1200 turns 3600 turns 12000 turns
Enables students to investigate nature and properties of electricity by using simple circuits which are easily constructed on a base board.
The connector system uses P.C.B. strips with cut-out sections whose ends can easily be inserted in spring terminals, ensuring low contact resistance and ease of connection.
The kit consists of :
1. Baseboard, plastic, with spring terminals and three battery holders. (1)
2. Batteries. (3)
3. Lamps 1.25 V MES. (10)
4. Lamp holders mounted on PCB connectors. (6)
5. Plain connector PCBs. (10)
6. Wire wound potentiometer with crocodile clip connections. (1)
7. Silicon diode. (1)
8. Resistor 3.9 ohm 2.5 W (1)
9. Pair Leads, red, with crocodile clip at each end. (1)
10. Pair Leads, black, with crocodile clip at each end (1)
11. Pair Leads, yellow, with crocodile clips at each end. (1)
12. Switches mounted on PCB. connectors (2)
13. PVC rod 15 cm long (1)
14. Soft iron nails, 5 cm long (2)
15. Bare copper wire, swg 20 (2 m)
16. Bare eureka wire, swg 34 (2 m)
17. Plastic covered copper wire (2 m)
18. Electrode support (1)
19. Pencil lead electrodes (10)
20. Sheet copper foil, 150 mm square (1)
21. Pack Steel wool (1)
22. Instruction manual in English. (1)
For Westminster Electromagnetic Kit giving 1 V full wave rectified DC and 1 V / 2 V AC outputs at 8 A max.
The circuit diagram is printed on the top panel which also carries mains switch, light indicator and output sockets for DC and AC With 1.5 meter mains detachable cable.
This heavy duty demountable transformer can be used for the study of transformertheory and many other alternating current phenomena.
This kit consists of:
1. A magnetic circuit made of highly permeable U shape metal sheet, which can be closed using two clamps with tightening screws.
2. Section: 40 x 40 mm with 150 mm length and 170 mm height.
3. One coil of 6000 turns with maximum current of 0.2 A. Intermediary coil of 2000 turns output.
4. One coil of 600 turns with maximum current of 2.5 A, which is mainly used to create the primary of transformer.
5. One coil of 1200 turns with maximum current of 1.25 A, fitted with intermediary 400 and 800 turns outputs.
6. One coil of 72 turns with maximum current of 12 A, fitted with intermediary 6, 30, 54 and 66 turns outputs.
7. Power supply cable.
The motor consists of a two pole armature mounted between the ends of two bar magnets.
The armature has a two section commutator and a pair of slip-rings on its shaft and is so constructed that the wire cannot slip off the iron core.
The upper bearing and brushes for the commutator are mounted on a strong upright.
Separate brushes are provided for the commutator and for slip rings and each are connected to a terminal.
The magnets are held in position by thumb screws.
Students can explore how a simple electric motor works by doing a series of investigations.
This St. Louis motor can be adjusted so students can study the effect of voltage and position of the brushes on the commutator.
The motor consists of a two pole DC armature. The brush holder, with two heavy binding post terminals, can be rotated for experiments.
The permanent bar magnets, supported by clamps, can be adjusted to the desired location.
This apparatus requires 4 D cell batteries with holder (not included) or a power supply and two connecting leads (not included).
With driving wheel, to generate current, mounted on polished wood base with driving wheel in vertical position, a lamp holder and a lamp.
Output DC Current
Output both DC and AC current
With this simple electric motor model students can investigate the relationship between voltage supplied to rotor and polarity / position of magnets.
On applying 6V DC to 4mm sockets, the rotor will begin to rotate across its vertical axis.
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