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Set Of Modular Electric Machines Teaching Equipment Electrical Laboratory Equipment

Item No.: KMEC-1
KMEC-1 Set Of Modular Electric Machines Teaching Equipment Electrical Laboratory Equipment
Description
KMEC-1 Set Of Modular Electric Machines Teaching Equipment Electrical Laboratory Equipment

This set of modular machines is proposed as ”first approach” in a Laboratory of Electric Machines; it has been designed to assembly and test a large number of electrical machine (motors and generators) using few base components.
TRAINING PROGRAM
This set enables to expound the following training program on the machines of the table included in this leaflet:
• Measurement of the resistance of windings and correction for temperature
• Mechanical assembly of the various machines of the list with the proper care for alignments and the respect of the air gap
• Electrical connections of the machines of the list. In detail, as regards DC machines, the connections with separate, shunt, series, additive compound and subtractive compound
excitation will be examined
• Influence of the position of brushes on DC motors
• For all the motors, when the brake is provided, detection of electromechanical characteristics: Torque, RPM and efficiency of motors
• Detection and measurement of the characteristics of DC generators and calculation of the output power
• The same for the three-phase alternators, with R-L-C load. Measurement of power factor. The “Prime Mover” unit is recommended to drive the generators

TECHNICAL SPECIFICATIONS:
POWER SUPPLY UNIT WITH DIGITAL INSTRUMENTS MOD. KMEC-PS
This unit is universal for all the KMEC machines and it can output all the necessary AC and DC voltages. Moreover it is provided with the necessary electric instruments for the measurements of the parameters of the machines: a multifunction instrument for AC (V, I, W, VAr, VA, Frequency, Power Factor, THD% etc..., per phase, and equivalent for the three phases) – 20 A max., and 2 instruments for DC (V, I, W) – 20 A max. Output voltages:
- 0-48 VAC/10 A
- 0-48 VDC/10 A
- 24/42 VAC - 16/10 A
- 21-0-21 VDC/10 A
Protections with TMCB + overall ELCB and fuses on the very low voltage outputs, Safety terminals of 4 mm; with 3 singlephase universal sockets of 230 V – 10/16 A and a 3ph universal socket of 3x400 V/N/PE - 16 A 
Supply voltage: 3 x 400 V-50/60 Hz
LOAD / STARTER MOD. KMEC-LS
This unit is the variable R-L-C load for the generators. This separate unit enables the step variation of the load. Capacitors for single-phase motors are included. It also includes a three-phase rheostat for starting DC motors, the wound-rotor motor and for the start with stator resistance. 
Resistive load: 7 steps with max. 260 W (possibility of star, delta and AC/DC single-phase connections)
Inductive load: 7 steps with max. 260 VA at 50 Hz (possibility of star, delta and single-phase connections)
Capacitive load: 7 steps with max. 260 VA at 50 Hz (possibility of star, delta and single-phase connections). 22-45-68-90-113- 136-160 μF (per phase) can be applied to single-phase motors,with possibility of doubling and tripling these values by the parallel connection of 2 or 3 phases.
Starting rheostat: three-phase rheostat 0...30 Ω / 3...1 A per phase.
BASE WITH PROTECTIONS MOD. KMEC
Over this base, common to all set, it is possible to place up to two machines with the related mechanical protections. This base of anodized aluminium is provided with slides to simplify the assembly of the components, the coupling between the machines and the application of the protections for the couplings.
Dimensions: 800 x 200 x 320 (h) mm
Supply with 
THEORETICAL – EXPERIMENTAL HANDBOOK