Description

DC Multifunction Machine

Technical Specification  : 

Features:
This trainer should be designed to meet the operation training of various
DC electric machines, covering DC series motor, DC shunt motor, DC
compound generator and related testing panels
All motors and generator should come with standard aluminium profile

mounting base, coupling and foot pad for easy experimental combination
via universal shaft couplings of same height

The frame should adopt standard aluminum profile with modular experiment
panel design, thus, making it easy to build different experiment

combination on the flexible two-layer structure
All the upper parts should be removable including the experiment
module, power supply module and frame support
All terminals should led out on printed composite panel with 4mm safety
socket and connected by full sealing sheathed pluggable connector
The complete unit should be movable with lockable truckles on bottom
Training Content:
Acknowledge of motor / instrument / rheostat
Cold resistance measurement of DC motor/generator armature winding
Starting / speed regulation / direction control of DC separately excited motor
DC generator no-load / external / regulating characteristics
DC shunt generator self-excitation and external characteristics
DC compound generator distinction and external characteristics
DC shunt motor operating / mechanical / regulation characteristics and
dynamic braking
DC series motor operating / mechanical / regulation characteristics
Mechanical characteristics of separately excited DC motor under
different running states
– Mechanical characteristics under electric running and regenerative braking state
– Mechanical characteristics under electric running and reverse braking state
– Mechanical characteristics under dynamic braking state

Technical Specifications:
Mobile aluminium experiment stand:
– High compressed chipboard tabletop & baseplate
– Solid impact-resistant protective edging
– 6 extruded aluminium profiles with 8 grooves
– 3 H-shaped profiles for panel organization
– 4 swiveling casters, 2 of which should have brakes
– Table & upper frame part should be separable for easy delivery
– Cable holder should be attached to side column for at least 48 cable pcs
Single phase power supply:
– Circuit breaker
– Momentary pushbutton with lamp, green / red
– Key switch, 1 NO/NC
– Voltmeter 0…250VAC
– Output 4mm safety socket
– Standard size suitable for frame insertion
Armature & Field power supply:
– Independent on/off switch x2
– Digital voltmeter & selector
– Variable DC40…220V, 3A output
– Fixed DC220V, 0.5A output
– Standard size suitable for frame insertion
DC Voltmeter & DC Ammeter:
– Voltmeter digital DC0…300V x2
– Ammeter digital DC0…5A x4
– With all terminal led to colorized 4mm safety socket
– Standard size suitable for frame insertion
Selective switching unit:
– Selective switch: 9-pin with three positions x3
– With all terminal led to colorized 4mm safety socket

– Standard size suitable for frame insertion
Resistive load 1:
– Double-linked resistor x3
– Each with variable range 0…900Ω, 0.41A
– Fuse protector x6
Resistive load 2:
– Double-linked resistor x3
– Each with variable range 0…90Ω, 1.2A
– Fuse protector x6
Resistive load 3:
– Armature and Field resistance
– Wound motor starting resistance
Speed & Torque measuring system:
– DC calibrated machine: 220V, 1500r/min, 2.2A, 355W
– Digital Tachometer module: 0…9999rpm measuring range and
aluminium frame with printed panel
– Optical encoder with coupler: Power 5…24VDC, shaft dia. 6mm
– Universal aluminium profile mounting base complete with two
carrying handles
Accessories:
– Foot pad x4 for each mounting base plate
– Shaft couplings for each motor
– Safety whole sealing cable: Conductor cross section 16AWG,
tinned copper wire, 3kV, 20A, with axial socket
– Experiment guidebook and wiring instruction
Experiment Motors:
DC Series Motor:
– Type: DC motor
– Voltage: 220V
– Current: 0.8A
– Power: 120W
– Speed: 1400 r/min
DC Shunt Motor:
– Type: DC motor
– Voltage: 220V
– Current: 1.2A
– Power: 185W
– Speed: 1600 r/min
DC Compound Generator:
– Type: DC generator
– Voltage: 220V
– Current: 0.5A
– Power: 100W
– Speed: 1600 r/min
Licensed Pneumatic Simulation Software to be used for conducting
below experiments –
Reversing loop of push button valve controlled single acting cylinder
Speed control loop of single acting cylinder
Manual controlled reversing loop of hand directional valve
Pneumatic controlled reversing loop of hand directional valve
Speed control loop of double acting cylinder
Speed control loop of throttle valve
Sequential loop of two cylinders
Reversing loop of OR gate valve controlled single acting cylinder
Remote controlled unloading loop

Push button valve controlled double acting cylinder loop
Reducing valve controlled pressure-relief loop
Two hands controlled single acting cylinder reversing loop
Licensed Hydraulics Simulation Software to be used for conducting
below experiments –
Single stage pressure regulation loop of overflow valve
One level pressure-relief loop of reducing valve
Oil in speed regulation loop of flow control valve
Oil return speed regulating loop of flow control valve
Side oil line throttle governing loop of flow control valve
Reversing loop of hand directional valve
Series speed regulating loop of flow control valve and throttle valve
Parallel speed regulating loop of flow control valve and throttle valve
Oil in and oil return speed regulating and throttling loop

Accessories

Power cord: 1 set
Connecting Wire
User Manual

Others :

Parts Origin: China, Taiwan, Japan
Manufacturing: Assemble in Bangladesh
Installation, Training