Machine Test CASSY, 1.0

7732900

The Machine Test CASSY is part of the machine test system for the analysis of electrical drives and the simulation of machine loads. Its compact size allows it to be used in an experiment frame or as a table top unit.

In addition to the control unit for the Electrical Dynamometer (7732 990), it has a powerful measurement and analysis system with four isolated and potential-free measurement channels, each for simultaneous measurement of current and voltage, comparable to the Power Analyser CASSY (727 100).

The speed measurement is carried out via an optical sensor and gives an angular resolution of 0.1 °.

The torque is measured up to ±33 Nm with a resolution of 1x10^-2 Nm. This can then also be calibrated with a reference weight of 2 kg.

The Machine Test CASSY can be used for the following experiments, among others:

Analysis of machines as a motor and as a generator
Behaviour to different load cases, e.g. flywheel mass, blower etc.
Behaviour of time variable load cases
Study of frequency converter with asynchronous machine, IMP machines
Starting with star-delta circuit, soft starter and frequency converter
Parametrisation of control units for soft starting or heavy starting with slip-ring rotor

Machine selection:

It is possible to comprehensively parametrise all available machines. This parametrisation is supported by intelligent menu guidance. Due to integrated recognition of machine types of new design this selection is eased.

Furthermore, machines from the existing inventory can also be integrated and individually parametrised. A switch-over of the safety loop between LD machines and e.g. machines of the brand "ELWE Technik" is easily possible.

The menu "Freely parametrisable" additionally allows the manual input of parameters of older machines, third-party machines or special machines e.g. for research purposes. Please contact our technical consultants.

Operating modes:

Testing of motors

The control during the testing of motors is either done by the measured speed or with the help of the measured torque.

Speed control: Manual, Automatic, Run-up characteristic, Load characteristic
Torque control: Manual, automatic dynamic unloading, automatic dynamic loading, automatic static according to IEC DIN VDE 60034-2-1 in 6 steps and additionally in 16 steps from 0% to 150%

Testing of generators

Electrical machines can be tested, monitored and analysed by the system as a generator in isolated operation - but also in mains operation.

Load simulation

Depending on the speed for start-up and operating behaviour

Load characteristic: T(n) (extruder)
Load characteristic: T(n²) (turbo machine e.g. fan)
Load characteristic: T_L = const. (elevator, crane)
Load characteristic: P const. (lathe, milling machine spindle)
Load characteristic: T(α) flywheel mass
Free characteristic: specified via external software, e.g. CASSY Lab 2 for drives and power systems 524 222, LabView or MATLAB

Time-dependent load behaviour

Sine function
Trapezoid function
Triangle function:
Free functions, specified via external software, e.g: CASSY Lab 2 for drives and power systems 524 222, LabView or MATLAB

Generator control

Isolated operation

Power control
Voltage droop
Freq. droop

Mains operation

Power control
Voltage droop
Freq. droop
Superimposed cosine phi controller
Parallel operation of generators

Mechanical analyses on machines

Moment of inertia

Determination of moment of inertia
During braking processes
During acceleration

Measurements in the range of the machine test system:

Speed: n_M ±2000.0 rpm, ±3500.0 rpm, ±5000.0 rpm, 34.00 s^-1, 64.00 s^-1, 84.00 s^-1,
Torque: T_M ±33.000 Nm
Angular acceleration: ω_M 400°/s², 4000°/s², 40000°/s²
Mechanical power: P_mec ±600.0 W, ±1200 W, ±2400 W, ±3600 W, ±6000 W
Electrical power: P_el ±600.0 W, ±1200 W, ±2400 W, ±3600 W, ±6000 W
Machine voltage: U_M mean terminal voltage
DC ±36 V, ±150 V, ±360 V, ±700 V, AC 25 V, 100 V, 250 V, 490 V
Machine current: I_M mean line current
DC ±1 A, ±2.4 A, ±10.0 A, ±24.0 A, AC 0.7 A, 1.6 A, 7 A, 16 A
Power factor: cosφ_M
Mains frequency: f_M
Excitation voltage: U_E DC ±36 V, ±150 V, ±360 V, AC 25 V, 100 V, 250 V
Excitation current: I_E DC ±1 A, ±2.4 A, ±10.0 A, ±24.0 A, AC 0.7 A, 1.6 A, 7 A, 16 A
Excitation power: P_E ±400.0 W
Apparent power: S_M ±1200 VA, ±2400 VA, ±3600 VA, ±6000 VA, ±12000 VA
Reactive power: Q_M ±600.0 var, ±1200 var, ±2400 var, ±3600 var
Efficiency: η_M 200.00%
Slip: s_M

Integrated didactic measuring system:

Inputs: 4 isolated measurement channels CAT III 300 each with I and U measurement (max. 8 can be used simultaneously)
Input A-D: U and I connection via 4 mm safety sockets
Measuring ranges U: 25/70/250/700 V AC, ±36 /±100/±360/±1000 V DC
Measuring ranges I: 0.7/1.6/7/16 A AC, ±1/±2.5/±10/±16 A DC
Simultaneous measurement of U, I, φu, φ, f and P each in 4 channels as well as current
Sampling rate max. 1,000,000 values/s per channel for U, max. 500,000 values/s for I
Instantaneous and averaged values U, I and P
RMS values (AC+DC / AC) U and I
Individually switchable fundamental wave filter for current and voltage
Analogue output: capable of controlling external relays or voltage regulators.
Temperature monitoring for dynamometer and DUT
Monitoring of wave covering: System shut-down with restart protection
Four-quadrant display with LEDs to indicate the operating point
Adjustable speed and torque limits
Highest safety standard: leakage current < 5 mA

Integrated operating and display unit

Display on 9 cm colour screen (QVGA 3.5")
Display of up to 24 measured values simultaneously
Display of all values for each channel
Display of all values in tabular form
Display and evaluation of the measured values in different diagrams
Display of a vector diagram
Display of all parameters for control and configuration - also for operation without computer
Pushbutton and incremental encoder with pushbutton
Further functions and interfaces

USB type C interface with PC or laptop to use with external software, e.g. CASSY Lab 2 for Drives and Power Systems 524 222, LabView or MATLAB or as USB drive for transferring measurement data and for parametrisation.

Wireless network (WiFi) for use with LabDoc, CASSY Lab 2 for Drives and Power Systems 524 222 or as interface to Matlab and LabView

Additional information:

Mains voltage: 230 V 50–60 Hz
Power rating: 3.6 kVA
Temperature-controlled active ventilation
Dimensions: 500 mm x 300 mm x 180 mm
Weight: 12 kg

Machine Test CASSY
1 USB C / A cable
Cold device cable EU / GB
7-pin conductor with round plugs

ZIP	Mobile Config, Mobile Edit and Machine Test CASSY Firmware (V1.08) Utilities and firmware update without CASSY Lab 2
MSI	CASSY Lab 2 for Drives and Power Systems (en, V2.27) Free demo version, full version requires a licence code of CASSY Lab 2 for Drives and Power Systems
MSI	CASSY Lab 2 for Drives and Power Systems (fr, V2.27) Free demo version, full version requires a licence code of CASSY Lab 2 for Drives and Power Systems
MSI	CASSY Lab 2 for Drives and Power Systems (es, V2.27) Free demo version, full version requires a licence code of CASSY Lab 2 for Drives and Power Systems
MSI	CASSY Lab 2 for Drives and Power Systems (pt, V2.27) Free demo version, full version requires a licence code of CASSY Lab 2 for Drives and Power Systems
MSI	CASSY Lab 2 for Drives and Power Systems (it, V2.27) Free demo version, full version requires a licence code of CASSY Lab 2 for Drives and Power Systems
MSI	CASSY Lab 2 for Drives and Power Systems (nl, V2.27) Free demo version, full version requires a licence code of CASSY Lab 2 for Drives and Power Systems
MSI	CASSY Lab 2 for Drives and Power Systems (ru, V2.27) Free demo version, full version requires a licence code of CASSY Lab 2 for Drives and Power Systems
MSI	CASSY Lab 2 for Drives and Power Systems (zh, V2.27) Free demo version, full version requires a licence code of CASSY Lab 2 for Drives and Power Systems
Manual	CASSY Lab 2 Manual (en)
Manual	CASSY Lab 2 Manual (fr)
Manual	CASSY Lab 2 Manual (es)
Web Link	CASSY Lab 2 Web Help (en)
Web Link	CASSY Lab 2 Web Help (fr)
Web Link	CASSY Lab 2 Web Help (es)
ZIP	CASSY SDK for own software development (Windows/Linux)
ZIP	LabVIEW driver for LabVIEW 2017 or higher (Windows)
ZIP	MATLAB driver with examples (Windows)

Machine Test CASSY, 1.0

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