Services
Power Quality Recording to find power grid problems on machines and systems
We carry out power quality recording using the latest measurement technology up to 170 kHz worldwide.
The recorded measurement results are clearly presented in a measurement report.
The resulting findings form the basis for taking measures to ensure a trouble-free power supply.
Thanks to our many years of experience in analysis and problem solving with our own PQ systems, we offer complete concepts for a trouble-free power supply.
Optimale Stromqualität ist die Grundlage für einen störungsfreien, verschleißarmen und energieeffizienten Betrieb elektrischer Anlagen und Geräte.
Resonance through reactive power compensation system (PFC)
Power Factor recording elevator high-rise Jakarta / Indonesia
Power grid problems are very diverse and cause a wide variety of problems such as:
- Failure of systems
- Malfunction of control and regulation technology
- Failure of devices (PCs, UPS systems, air conditioning systems, etc.)
- Strong heating of busbars and cables (including neutral conductors)
- Flickering of light
- Overloading of transformers
- Failure of frequency converters
- Defective or unsuitable reactive power compensation systems
- High transmission losses
Power grid analysis to demonstrate compatibility with standards
In order to provide evidence of compatibility and compliance with the respective valid national or international standards, we can provide proof of this as required.
- Acceptance of new systems and energy supply networks
- Evidence for authorities and customers with documentation
- Evidence in legal disputes
(warranty exclusion in the event of failures due to exceeding network parameters)
Expert report
A publicly appointed and sworn expert for power quality (PQ) can prepare an expert report that can be used as evidence.
Measurement technology Power Quality
We work with the PQ-Box 300, a powerful power grid analyzer of the latest generation
Frequency analysis DC up to 170 kHz
The mobile Power Quality power network analyzer, power meter and transient recorder enables permanent frequency analysis DC up to 170 kHz. The Class A device was developed for measurements in low, medium and high voltage networks and is ideally designed for mobile measurement operations in harsh environments and in very confined spaces. The device also enables an assessment of the voltage quality for public and industrial networks. The device is therefore an indispensable support for analyses in high frequency ranges.
Assessment of voltage quality is possible according to the following standards:
- EN50160 (2015)
- IEC61000-2-2
- IEC61000-2-12
- IEC61000-2-4 (Class1; 2; 3)
- NRS048
- IEEE519
- VDE N-4105
- IEC61000-4-30 Ed. 3 Class A
- IEC61000-4-7
- IEC61000-4-15
- IEC62586-2 Ed. 2
- IEC62586-1
Measured variables:
- Automatic standard evaluation and event recording after:
- Recording free interval 1sec to 30min (>3,900 measurement parameters permanently in parallel):
- Voltage: average, min., max. value
- Current, average, max. value
- Power: P, Q, S, PF, cos phi, sin phi
- Distortion; fundamental, asymmetry and modulation reactive power
- Energy: P, Q, P+, P-, Q+, Q-
- Flicker (Pst, Plt, Pinst)
- Asymmetry current and voltage; Negative system, mean system, zero system
- Voltage harmonics according to IEC61000-4-30 Class A up to 50.
- Voltage harmonics up to 9kHz (200Hz frequency bands) 2kHz to 9kHz
- Supraharmonic up to 170kHz (200Hz/2kHz frequency bands)
- as average and 200ms min. and maximum values
- 8kHz to 170kHz
- Current harmonics up to 50.
- Current harmonics (200Hz frequency bands) 2kHz to 9kHz
- Phase angle of the voltage harmonics and current harmonics up to 50.
- THD U and I; PWHD U and I; PHC
- FFT calculation for voltages and currents DC up to 20kHz
- Ripple control signal 100 Hz to 3 kHz
- Frequency, 10sec, mean-min-max values
- 10/15/30 min interval power values P, Q, S, D, cos phi, sin phi
- Online mode:
- Oscilloscope image
- 3D power triangle for active, reactive, apparent power and distortion reactive power
- Voltage and current harmonics (5Hz frequency bands) DC up to 20kHz
- Supraharmonic voltage up to 170kHz (200Hz bands) 8kHz to 170kHz
- Direction of harmonics and phase angle current harmonics
- Trigger functions (Rec A / Rec B)
- Manual trigger via button
- RMS trigger undershoot and overshoot (U, I)
- RMS trigger jump (U, I)
- Phase shift trigger
- Envelope trigger
- Automatic trigger
- Trigger on binary input (0 – 250V AC/DC; threshold 10V)
Seminars and training courses
Seminars and training courses on power quality, as well as the use of measurement technology, active filters and reactive power compensation systems
Especially for these industries:
- Energy suppliers
- Industry
- Switchgear construction
- Engineering offices / planning
- Plant construction / drive technology
- Technical universities
The aim is to enable participants to monitor power quality, diagnose problems and take appropriate actions to improve energy efficiency and reliability.
- Measurement methods and equipment:
Training in the use of power quality analyzers and other measurement devices to collect and analyze power quality data. - Fault management:
Strategies for identifying and correcting faults that may affect power quality. - Active filters and their functions:
Harmonics compensation, power grid symmetry, superfast reactive power compensation inductive / capacitive - Practical applications:
Case studies and practical exercises to apply the learned knowledge in real-life scenarios.
The main topics can be adapted thematically and subject-specifically depending on the needs of the participants.
Lecturers with the highest professional qualifications are available for highly complex topics in power quality.
Among others:
- Grid interference caused by charging stations for electric vehicles and PV inverters in public grids.
- Probabilistic modelling of harmonic emissions in the low voltage network.
Expert Seminar PQ for Energy Suppliers / Vietnam
Expert Seminar for Active Filter / Indonesia
Presentation with a mobile Active Filter
To demonstrate the performance and functionality of our active filters to our customers, a mobile active filter system was set up (a module 3 phases +N, 60 A with Rogowski coils). This makes it possible to present the functionality quickly, realistically and live on site.
Filter out of order
Filter in operation
Commissioning
We commission our systems worldwide.
We provide our customers with technical and measurement support to ensure quick and trouble-free commissioning.
Commissioning of Active Filter / France
Commissioning of active filters in hydrogen electrolysis plant, (New Zealand)