Transformers
KTM-120 Training module
Didactic single-phase transformer kit
A kit for assembling and studying different types of single phase transformers. It enables you to analyse the principles of electromagnetism: the functioning of a relay, of a bell, …
It consists of a triple unit for a assembly base and a briefcase which contains the various construction elements such as:
- A U nucleus
- An I nucleus with an air gap variation control
- 2 x 500-spire coils
- 2 x 250-spire coils
- 2 x 100-spire pendulum coils
- Pendulum sheet (relay, bell, etc.)
- Bell ringer
- 2 frames (relay contact)
- Pendulum arm (Foucault)
- Magnets
- Various parts (pieces of iron, aluminium, etc.)
Standard accessories included:
- User manual.
TRI-120 Training module
Three-phase transformer 230/400-22/38V
This is a three-phase transformer which, depending on the model (TRI-122 or TRI-123), has a transformation ratio of either 220V to 22/38V or 380V to 22V-38V, with an apparent power of 300 VA.
The output voltage is 22V between phases (12.7V neutral phase) and 4 Amperes or 38V between phases (22V neutral phase) and 3.75 Amperes which can be selected by means of a commutator on the front template.
The output is by both 4mm and 2mm bushes and they are protected against overcurrent and shortcircuit with a light indicator per phase. They are thermally insulated with resetting being produced automatically after the protective elements have been cold for a period of time.
The frontal light display shows the order of phases (L1-L2-L3 or L1-L3-L2).
The transformer primary is protected by 2A fuses with a light indication if any should blow (pilot light out).
Standard accessories included:
- User manual.
AUT-120 Training module
Single-phase autotransformer
Single-phase autotransformer with 230 V / 50-60 Hz input voltage and variable output adjusted by a potentiometer control.
- Maximum output voltage: 250 V
- Maximum output load: 1 A
- Protection: 1 A fuse
- Safety bushings
Standard accessories included:
- User manual
ETT-120 Training module
Three-phase transformer study
Equipment for analysing the different types of connections on three-phase transformers.
It is composed of an ETT-120 three-phase transformer multitemplate unit and a set of 12 templates.
The unit incorporates three single phase transformers, each of which has two secondaries of an identical transformation ratio (0.5/1). The nominal voltage for the primary windings is 22v and 11V for the secondary ones.
By means of the templates (12), and connectors (never more than 9), the following three-phase transformer confi gurations may be obtained:
- T-E-1 Template: Triangle-Startime phase difference 1
- T-E-5 Template: Triangle-Startime phase difference 5
- T-E-11 Template: Triangle-Startime phase difference 11
- T-2E Template: Triangle-Double Star
- T-T-0 Template: Triangle-Triangle-time phase difference 0
- T-Z-0 Template: Triangle-Zig/Zag-time phase difference 0
- E-E-0 Template: Star-Star- time phase difference 0
- E-E-6 Template: Star-Star- time phase difference 6
- E-T-5 Template: Star-Triangletime phase difference 5
- E-T-11 Template: Star- Triangletime phase difference 11
- E-Z-5 Template: Star-Zig-Zagtime phase difference 5
- E-Z-11 Template: Star-Zig-Zagtime phase difference 11
The input/output terminals are printed on all the labels. Each one of the six secondary windings is fi tted with a thermal protection circuit with a light indicator, set at 0.65 A.
Required accessories:
- TRI-120 three phase transformer didactic module.