Complete training system for DC Industrial Drives

Complete training system for DC Industrial Drives Complete training system for study of DC Industrial Drives with minimally the following characteristics: Objectives Protective measures and electrical safety Setting up variable speed DC drives and putting them into operation Assessment of control response Topics Automatic control of multi-quadrant drive Introduction to the requirements Analysis of controlled systems Analysis of actuating static converters Optimisation of the current control loop Recording of armature circuit constants Adaptation of current controller Adjustment of current limiting Optimisation of speed control loop Putting thyristor speed control in the first quadrant into operation Setting of DC chopper and inverter stability limits Recording of static converter control characteristic Determination of armature circuit constants Recording of the transient function of the controlled variable, armature current Recording of the transient function of the controlled variable, armature current, with and without adaptive controller Switchover of static converters Setting current limiting Determination of the integral-action coefficient for the drive Determination of the transient of the controlled variable, speed Recording a switching diagram Each system is composed minimally by the following components: 1x Thyristor Speed Control Unit Compact static converter for setting, and performing open and closed loop control of DC voltage and current. In addition to making a multitude of experiments possible, can also be used to control the speed of a shunt wound machine with 0.1 kW to 2.6 kW with cascade current control in 4-quadrant operation. In detail the unit contains: Mains switch and delayed response main contactor for armature and exciter voltages Separate fuses, which can be serviced externally, for excitation, the electronic components and three-phase current -Exciter voltage output: 220 V, 1 A -Thyristor power circuit with two fully controlled B6 bridges for circulating- current-free 4-quadrant operation, Nominal data (UL1N = 90 V): 0...230 V, 12 A, Indication of the active static converter via 2 LEDs Complete electric isolation between power circuit and control and regulating unit -Extensive fault monitoring with signalling and switch-off. Activates for phase-failure, rotating field fault, machine or equipment overheating and time limit Control and regulating electronics with extensive indication, setting and measuring possibilities Open- and closed-loop control: Potentiometer for setpoint potentiometer with changeover switch for single quadrant and four quadrant operation Run-up integrator with potentiometer for the run-up time: 0.1...100 V/s Speed controller with summing point: 2 inverting and 1 non-inverting inputs -variable gain VN = 1...10 for actual speed value Coarse and fine adjustment of the proportional coefficient: KPN = 0.5...5/5...50 Coarse and fine adjustment of the reset time: TNN = 0.1 s...1 s/1 s...10 s -I controller can be switched off Overdrive indication with LED Both converters I and II have a potentiometer for current limitation Imax I = 0...12 A; Imax II = 0...12 A -Instantaneous comparator with adjustable hysteresis Absolute-value generator with measurement socket for control signal INVert -Adaptive current controller with summing point: 2 inverting and 1 non-inverting inputs -recognition of intermittent current with LED display and measurement socket for the control signal STL (intermittent current) -reduction of the reset time to 1/10, when intermittent current is present, can be switched off Coarse and fine adjustment of the proportional coefficient: KPI = 0.05...0.5/0.25...2.5 Coarse and fine adjustment of the reset time: TNI = 10 ms...100 ms/100 ms...1 s I controller can be switched off Overdrive indication with LED Trigger point limiter with possible settings for: Rectifier stability limit 0°...80° Inverter stability limit 180°...100° Switching logic with measurement sockets for the control signals and with a control input STOP 4-quadrant indication with 4 LEDs Current measurement with current converters -The control set provides six double-pulse trains which are switched through to the thyristors of the rectifiers I or II via 12 gate pulse transformers: Supply voltage: Control unit: 230 V, 50 Hz with mains connection cable and earthing pin plugs Power circuit: via external three-phase transformer 3 x 45/90 V, 50 Hz 1x Tacho Generator 0.1/0.3 For registering the speed of electrical machines of the 0.1 and 0.3 kW series. Output voltage: ± 1 V / 1000 min-1 1x DC Compound Machine 0.3 DC compound machine for motor and generator operation is isolated• built on an aluminium base. The machine can be used as shunt, series, or compound wound machine, series winding with tap for compounding and shunt winding. The machine is protected by a built-in stator winding temperature switch against overload. Machine with one shaft end is insulated built on an aluminium base with glides. The machine is to be operated on the machine bench. All connections are brought out on the overhead connection box separated on 4 mm safety plugs. The nominal ratings are mounted on three rating plates on the connection box. In addition to the protective conductor connection attachment for potential equalization line via M6 thread on the connection box is also Ratings: Electrical ratings: Ratings for operation as Shunt machine As motor: Power: 0,3 kW Voltage: 220 V Current: 1,8 A Excitation voltage: 220 V Excitation current: 0,26 A Speed: 2000 rpm As generator: Power: 0,22 kW Voltage: 220 V Current: 1 A Excitation voltage: 220 V Excitation current: 0,26 A Speed: 2500 rpm Ratings for operation as Series machine As motor: Power: 0,3 kW Voltage: 220 V Current: 1,74 A Speed: 2050 rpm As generator: Generator mode not specified Ratings for operation as Compound machine As motor: Power: 0,3 kW Voltage: 220 V Current: 1,83 A Excitation voltage: 220 V Excitation current: 0,26 A Speed: 1645 rpm As generator: Power: 0,22 kW Voltage: 220 V Current: 1 A Excitation voltage: 220 V Excitation current: 0,26 A Speed: 2400 rpm Mechanical data‟s: Type of construction: B3 Shaft end: 1 Base: Alumium Connection box: Top Temperature class: B (120°) Degree of protection (IP): IP20 Temperature detectors: Bimetal switches 110° NC (normally closed) Efficiency class: IE1 1x Machine Base Bench 120 cm 2x Coupling and schaft end guard 0.3 transparent Plug-on cover as contact protection for rotating parts of electrical machines of the 0.3 kW series and for shaft monitoring by the machine test system. Installed on an aluminum base with slider. The shaft cover can be converted to the shaft end cover by using of an acrylic glass end plate. Scope of delivery: Hexagon socket wrench 2,5 mm; acrylic glass end plate with screw 1x Coupling 0.3 Rubber coupling sleeve for mechanical connection of two electrical machines of the 0.1 or 0.3 kW series. 1x Three phase high power measurement device with WIFI, display, tablet app and PC software. The Three phase high power measurement device is a combination of isolated and differential oscilloscope, multimeter, wattmeter, energy analyzer and recorder. It was designed in its concept for demonstration and laboratory experiments. The Three phase high power measurement device has been optimized for the following applications: Energy grids: Voltage and frequency stability Load behavior of networks Effect of harmonics Electrical machines: Inrush current of transformers and machines Ratio of transformers Efficiency of machines Power Electronics: Rectifier DC / DC converter DC / AC converter frequency converter filter Three phase high power measurement device in detail: Simultaneous measurement of U, I, ju, j, f and P in 4 channels Instantaneous values U, I and P Averaged values U, I and P RMS values (AC + DC) U and I RMS values (AC) U and I Fundamental wave filters Delta connection adjustment universal connection options Via USB-Type C connection with PC or laptop Via the WLAN option with the school network or setting up your own access point automatic or manual range selection Electrical power calculation S, P, QC and QL Electrical work WS, W and WQ Resistance calculation R, Z, XC, XL, G, Y BC and BL positive sequence component, negative sequence component and zero sequence component in 3-phase systems Derivative with respect to time, integral over time, FFT analysis, mean value, histogram, and model Drivers allow you to evaluate the data with LabVIEW and MATLAB Possibility of manual operation directly on the device by means of a rotary selector with cursor keys Direct reading in 9 cm, backlit display Display of up to 24 measured values in one display Display of all values for each channel Display of all values in tabular form Display of measured values in diagram Display of a vector diagram Wireless connection to the tablet app via WLAN for experimenting with tablet and smartphone (iOS, Android and Windows) Measuring instrument category CATIII 300: allows the use of the measuring instrument from tests with safety extra-low voltage (SELV) via 3-phase systems with or without neutral conductor up to testing in power electronics, eg. B. DC link voltage of 700 V DC FPGA-based real-time processing in the device enables comprehensive network analysis in the three-phase networks, which are displayed directly on the device in the vector diagram Technical specifications: DISPLAY & OPERATION Graphic display: 9 cm (3.5 "), QVGA, colored, light (adjustable up to 400 cd / m²) Operation: Pushbutton and incremental encoder with pushbutton INPUTS & OUTPUTS Inputs: 4 isolated measuring channels CAT III 300, each with I and U measurement (max. 8 can be used at the same time) Input A -D: U and I connection via 4 mm safety sockets Measuring ranges U: 25/70/250/700 VAC ± 36 / ± 100 / ± 360 / ± 1000 VDC Measuring ranges I: 0.7 / 1.6 / 7/16 / AAC ± 1 / ± 2.5 / ± 10 / ± 16 ADC Sampling rate: max. 1,000,000 values / s per channel at U and I max. 500,000 values / s General Loudspeaker: Error message when exceeding the measuring ranges Data storage: 100,000 readings for each measurement series, built-in Micro SD card (4 GB) for over a thousand measurement files and screenshots WLAN: 802.11 b / g / n as access point or client (WPA / WPA2) VNC server: integrated USB ports: Connect a USB Type C Main’s voltage: 230 V 50 - 60 Hz (conversion to 115 V possible) Connected load: 50 W Dimensions: 300 mm x 300 mm x 180 mm Weight: 3.7 kg Scope of Delivery: Power cord USB A / C cord Includes software with the following characteristics: Software for recording and evaluating measurement data acquired via Three phase high power measurement device, with comprehensive integrated help Functionality and many operable experiment examples. Including measurement server for the distribution of live measurements, table and diagram as well as measurement files on tablets or smartphones. School license for use on any number of PCs in a school or institute Supports up to 8 measurement devices, via USB-ports Supports Joule and Wattmeter and Universal Measuring Instrument Supports sensor boxes Additionally supports numerous devices via the serial interface (e.g. VideoCamera IRPD, balance) Connection to the integrated measurement server in the local network via QR code "Plug and play" enabled for easy use: the software automatically detects the connected devices and sensor boxes and displays these graphically, inputs and outputs are activated simply by pointing and clicking and typical experiment parameters are automatically loaded (depending on the connected sensor box) Measurement data can be displayed in the form of analog/digital instruments, tables and/or diagrams (also simultaneously, with user-definable axis assignment) Measured values can be recorded manually (at keystroke) or automatically (choice of time interval, measured time, lead time, trigger or additional measurement condition) Powerful evaluation functions including various fits (straight line, parabola, hyperbola, exponential function, free fitting), integrals, diagram labeling, calculation of user-definable formulas, differentiation, integration, Fourier transforms Experiment files in XML-data format Convenient exporting of measurement data and diagrams via the clipboard "Logbook" function lets you briefly document other experiment information in the experiment file Complete with more than 150 experiment examples from physics, chemistry and biology with detailed descriptions - Graphical display, sensor box and connector allocation when the experiment file is loaded Free updates and demo version available through our internet homepage Transformer 45/90, 3 N Power supply and experiment unit for the area of power electronics, equipped with: Mains switch: cam switch, 3-pole Mains voltage: 3 x 400 V, ± 10 %, 50...60 Hz Outputs: 3 x 90 V/1.5 A AC with 3 center taps 45 V 1 x 230 V/1 A DC motor protection switch 0.63....1 A (prim.) Output: via eighteen 4-mm safety sockets Connecting cable and Cekon plug 16 A Function generator 200 kHz Microprocessor controlled signal generator for experiments on training panels Function: Sine/triangle/square/DC Square-wave signal: duty cycle 10%...90%, adjustable in steps of 5% Frequency range: 100 mHz...200 kHz Resolution: 1 mHz...100 mHz, depending on frequency Output voltage: 0...20 Vpp continuous DC offset: ±10 V Display: four-digit 7-segment display for signal parameters and functions Attenuation: 0 dB, -20 dB, -40 dB Output impedance: 50 Ω Trigger output: TTL level Outputs: 4-mm safety sockets Power supply: +/-15 V DC or alternatively plug-in adapter, 12 V Plug-in power supply 12 V AC Primary: 230 V AC, 50/60 Hz Secondary: 12 V AC, 20 VA Connection: female LIT: Power Electronics and Drive Technology (in English) Compact static converter-fed d.c. machines. Basic theoretical information’s, equipment descriptions, experiment instructions. DIN A4, in English Blank panel, 100 mm, CPS For mounting in any empty spaces in experiment assemblies to ensure a uniform appearance of the entire assembly. The plates are not equipped with any mounting hardware. Dimensions: Height: 297 mm Width: 100 mm Mobile Experiment Stand Mobile experiment stand with tray, 4 castors, 2 of them can be locked. With aluminium profile 120 x 40 mm, surface powder-coated, colour dark grey DB 703 size: 1970 x 1294 x 700 mm prepared for assembling a panel frame, three level Assembly set for installation on site. Mobile cable holder For the organized, space-saving and mobile suspension of experiment cables. Two additional side receptacles for thicker cables (e.g. power cable, PC connecting cable, ...) Material: rectangular steel, powder coated in DB gray; four light-weight casters; cable troughs in light gray Cable troughs: 58 Dimensions (Width x Depth x Height): 550 x 404 x 1322 mm 1x Power Supply – Transformer 90/45V Power supply and experiment unit for the area of power electronics, equipped with: Mains switch: cam switch, 3-pole Mains voltage: 3 x 400 V, ± 10 %, 50...60 Hz Outputs: 3 x 90 V/1.5 A AC with 3 center taps 45 V 1 x 230 V/1 A DC motor protection switch 0.63....1 A (prim.) Output: via eighteen 4-mm safety sockets Connecting cable and Cekon plug 16 A 1x Function Generator 200kHz Microprocessor controlled signal generator for experiments on training panels. Function: Sine/triangle/square/DC Square-wave signal: duty cycle 10%...90%, adjustable in steps of 5% Frequency range: 100 mHz...200 kHz Resolution: 1 mHz...100 mHz, depending on frequency Output voltage: 0...20 Vpp continuous DC offset: ±10 V Display: four-digit 7-segment display for signal parameters and functions Attenuation: 0 dB, -20 dB, -40 dB Output impedance: 50 Ω Trigger output: TTL level Outputs: 4-mm safety sockets Power supply: +/-15 V DC or alternatively plug-in adapter, 12 V AC (included: Universal plug-in power supply, e.g. for CASSY, counter S, counter P, electrometer amplifier etc. Primary: 230 V AC, 50/60 Hz, secondary: 12 V AC, 20 VA Connection: co-axial power connector 1x Panel Frame two-level, T-base, without channel. Height: 73,0 cm Width: 124 cm Depth: 30 cm 1x Safety Bridging Plugs with Tap, black, set of 10 ten 4-mm safety bridging plugs with 19 mm spacing, color black, with 2 4-mm taps max. current rating: 32 A. 1x Safety connecting leads, 32 A Red/Black/Blue set of 32 4-mm safety connecting leads with 2.5 mm2 cable, current rating 32 A, consisting of: 2 each safety connecting lead, red 100 cm 2 each safety connecting lead, blue 100 cm 2 each safety connecting lead, red 50 cm 2 each safety connecting lead, blue 50 cm 2 each safety connecting lead, red 25 cm 2 each safety connecting lead, blue 25 cm 4 each safety connecting lead, black 100 cm 6 each safety connecting lead, black 50 cm 6 each safety connecting lead, black 25 cm 4 each safety connecting lead, black 10 cm 1x Safety Connecting Leads Yellow / Green 4-mm safety connecting leads with 2.5 mm2 cable, current rating 32 A, consisting of: 4 each safety connecting lead,yel/grn 100 cm 4 each safety connecting lead,yel/grn 50 cm 2 each safety connecting lead,yel/grn 25 cm 2x Adapter sockets set of 2 for conversion of equipment with 4-mm sockets for safe use in the low-tension range, with Allen wrench for fast and easy installation.

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