The Dynamic Motor Analyzer combines precision and convenience: the measurement module and analysis software are compactly built-in into a robust measuring case built-in ready for use directly on your electric motor.

It often happens that electric motors become overloaded during operation or fail for unexplained reasons. This can be due to the power supply, electric motor , or its load. The cause of the fault can be electrical or mechanical.

The cause of the fault is often difficult to find, as the electric motor is electric motor part of a complex machine or installed in a system that is difficult to access. However, the electric motor supply line in the electric motor control cabinet is usually easier to access. Here, the six electrical variables (3 x U and 3 x I) can be measured directly. The Dynamic Motor Analyzer uses various analysis methods to determine the "health status" of your electric motor.

The Dynamic Motor Analyzer offers automatic phase correction. If you connect a phase with the wrong polarity or in reverse, you measurement lead need to disconnect and reconnect the measurement lead . The Dynamic Motor Analyzer checks the Connection adjusts itself accordingly.

The Dynamic Motor Analyzer has additional analog and digital inputs. These can be quickly and easily configured for a wide variety of measurement signals using software. In addition to electrical variables, electric motor temperatures, vibrations, flow rates, or pressures at pumps can also be easily measured and evaluated. The aim is to provide the operator as complete operator overview of the machine as possible.

Dynamic electric motor analysis and its possibilities

The electric motor supplied with three-phase current by the power supplier or a frequency converter. The three phase voltages must meet certain conditions so that the electric motor can operate electric motor and within its specifications. Significant deviations will result in the electric motor operating incorrectly, which usually leads to overheating.

The electric motor electricity depending on the power grid, its quality, and the load conditions. The electricity contains a wealth of information that the Dynamic Motor Analyzer evaluates. This makes it possible to determine the speed or investigate rotor problems.

voltage current together determine the powerMotor theMotor . This may sound trivial, but this measurement must also produce accurate results in conjunction with frequency converters. To meet these requirements precisely, the Dynamic Motor Analyzer can increase its sampling rate to up to 2.5 million measurements per second.

The Dynamic MotorAnalyzer provides you with an easy-to-use measurement tool for detecting complex problems in machine systems. Before replacing a defective electric motor, the cause of the failure should always be clarified. Otherwise, a replaced electric motor may also fail electric motor the same cause of failure, resulting in renewed downtime and repair costs.

Test bench for electric motors

With the Dynamic Motor Analyzer, the operator can run operator on a load test bench. This allows torque/speed characteristics to be recorded. The Dynamic Motor Analyzer provides additional measurement inputs for this purpose.

The inputs can be used to measure the torque signal, the speed signal, and also the temperature from a torque measuring shaft. Together with the electrical input variables, the system provides precise information about the electric motor.

Depending on the configuration of your test bench, the Dynamic Motor Analyzer can take over control and regulation tasks for the test bench. This makes the Dynamic Motor Analyzer ideal for retrofitting existing test benches.

The fast, intelligent measurement technology and the user-friendly, intuitive analysis software are perfectly coordinated. Just a few clicks and selections are all it takes to electric motor and start the test for the connected electric motor .

Only when the collected results are to be saved after measurement is it necessary to enter the type plate data and any other general conditions, as these will memory later for searching in the memory .

The comprehensive evaluations produce clear and comprehensible results. No special detailed knowledge is required to operate the evaluation software. The software calculates all other electrical and mechanical variables from the 6 electrical variables (3 x voltage 3 x current).

No other comparable testing device offers as many analyses in combination with the EncoderAnalyzer functionality as the Dynamic MotorAnalyzer. The variety of evaluations is immense, yet easy to understand. The modern user interface is clear and not overloaded with Windows® windows. This is what distinguishes modern measurement technology.

Analysis of network coverage

The power quality – from the energy supplier or the frequency converter – has a decisive influence on the operating behavior of the electric motor. Whether under- or overvoltage, asymmetry between phases, or excessive harmonic components, all of these factors electric motor negative electric motor on the electric motor and lead to reduced power output. For this reason, the following measurements and analyses of the mains supply are carried out on phases L1, L2, and L3:

• Minimum, maximum, and average values of the effective voltage values
• Minimum and maximum voltage peak value
• Minimum, maximum, and average values of the mains frequency
• Minimum, maximum, and average values of the phase angles between the phases
• Minimum, maximum, and average values of voltage imbalance between phases
• Harmonic analysis up to the 50th harmonic, including graphical representation
• Crest factor, total harmonic distortion (THD), power reduction factor (HVF), and more
• NEMA reduction factors
• Symmetrical components
• Graphical voltage displays during grid or frequency converter operation
• Graphical representations of the voltage of the fundamental wave and the harmonics during frequency converter operation

Analysis of electric motor current consumption

The electric motor current and the relationship between voltage electric motor current contain almost all the information about the electric motor status and load conditions. These are filtered out of the measured values by the software, analyzed, and presented operator even for operator are not technically experienced. The following measurements and analyses of the electric motor current are performed in phases L1, L2, and L3:

• Minimum, maximum, and average values of the effective current values
• Minimum and maximum current peak value
• Minimum, maximum, and average values of current imbalance between phases
• Current in relation to the rated current
• Harmonic analysis up to the 50th harmonic, including graphicalrepresentation
• Total harmonic distortion (THD) and power reduction factor (HVF)
• Symmetry of impedances
• Vectorial sum current
• Eccentricity in the air gap
• Determining the rotational speed from the current
• Inspection of the cage runner for broken rotor bars
• Graphical power representations for grid and converter operation
• start-up current analysis

Analysis of load and running conditions

Further operating parameters are determined from the supply voltage and the electric motor current. These are:

• Minimum, maximum, and average values of Cosand PFinthe phases
• Electrical power, active power, reactive power
• Torque estimation and torque ripple
• torque spectrum
• overload peak detection
• Capacity utilization or % over- or % underload
• efficiency
• Torque measurement with measuring shaft
• Speed measurement with non-contact tachometer
• electric motor temperature
• electric motor types of mechanical problems with electric motor
• Vibration measurement in the X, Y, and Z directions on bothsides of the electric motorsimultaneously with voltage and current measurement
• Start-up or electric motor start measurement 
• Determination of energy costs
• Determination of profitability costs with improved efficiency

short-term measurement

The measurement can run similarly to a multimeter run is often short in duration. The measurement time can range from a few minutes to several hours.

If required, the measurements can be stored directly in the electric motor database together with all the analyses performed. A comprehensive log printout is also possible.

Transient analysis | Frequency converter operation

Transients are unusual measured values such as voltage, current, and torque peaks. Transients can electric motor problems in electric motor or indicate problems with electric motors. The Dynamic Motor Analyzer is set to measure continuously and examine the measured values for transients. As soon as it detects a transient, it begins to record the measured values and display them graphically. A typical transient measurement is, for example, the start of an electric motor.

The software is capable of displaying both the measured individual values of the vibrations and their effective values.

Whether voltages from the mains or from the frequency converter – the Dynamic Motor Analyzer is suitable for both types of electric motor supply. This means that faults in the converter, such as defective power semiconductors or incorrect V/f settings, can also be detected.

Whether voltages from the mains or from the frequency converter – the Dynamic Motor Analyzer is suitable for both types of electric motor supply. This also allows youto detect malfunctions in converters, such as defective power semiconductors or incorrect V/f settings.

long-term measurement

To monitor the condition of the electric motor over a long period of time, measurements can run over several days. Long-term measurements can run continuously or triggered on the basis of adjustable events. Special events can be, for example, current or voltage peaks, torques, etc. When an event occurs, the long-term measurement is started and automatically stopped after the event has subsided. In this way, the measurement recording is limited to exceptional machine conditions.

Stored long-term measurements can be reloaded and analyzed directly, as if the measurement were currently taking place live.

• Power Quality Analysis
• Electric motor analysis –Motor Analysis
• Load analysis –Motor analysis

• Professional motor analysis without requiring prior knowledge on the part of the user
• Ideal for troubleshooting on the grid or frequency converters
• Ideal for troubleshooting electric motor
• Ideal for troubleshooting mechanical loads
• Ideal for preventive maintenance
• Determination of mechanical performance parameters and torque
• Trend analysis, forecast
• long-term analysis
• Electric motor start-up analysis
• efficiency analysis
• Capacity utilization analysis
• energy cost analysis

• Continuous real-time measurement, measured values are displayed permanently
• Direct voltage measurement up to 700_Veff
• Indirect voltage measurement via PTs up to 50 kV
• Current clamp measuring ranges from 5 to 5,000_Aeff
• Current measurement via CTs up to 10_kAeff

• Integrated oscilloscope function for evaluating voltages, currents, and power ...
• switch-over country-specific units such as Nm, lb-ft, HP, kW, etc.
• memory storing the results
• Comprehensive, self-configurable print log
• battery operation
• Worldwide power supply 90–250 V / 47–63 Hz