Power Quality Measurement
Power quality measuring systems with integrated fault recorder functionality for continuously and automatically power quality monitoring electrical grids at all voltage levels. The power analyzer of the EPPE series continuously and precisely record all the electrical parameters of the power grid. They deliver detailed quality evaluations which reveal even the smallest of deviations and contribute to identifying the cause of disturbances. EPPE enables not only the power quality monitoring, but also the analysis of consumption and the identification of potential savings.
Stationary power quality monitoring system for panel mounting
Our EPPE CX is the ideal choice for fully automatic, permanent Power Quality and grid monitoring. Additionally, 16 digital inputs capture all reactions of the protection and switching devices involved, allowing grid faults and their entire chain of effects to be analyzed in a single recording. Live measurements and trends can be conveniently accessed in numerical or graphical form via the 5” touchscreen display. With its integrated alarm system, it informs you immediately in the event of irregularities
The portable power quality solution in a carrying case
For users who require mobility, our EPPE PX offers the perfect solution. The robust case can withstand harsh environmental conditions. With additional sensor inputs, direct current inputs and full galvanically isolated analog inputs, it offers maximum flexibility for mobile measurements and system monitoring.
Compact power quality meter and fault recorder for DIN rail mounting
Our EPPE RX is a high-precision power quality and power measurement analyzer for DIN rail mounting. With 8 channels, it measures 4 voltages and 4 currents at a sampling rate of 200 kHz. Compliant with VDE-AR-N-4110 and VDE-AR-N-4120, it is ideal for monitoring EEG systems in the medium and high-voltage grid
Blog contributions with interesting and practical background information about EPPE Energy Quality Measurement. Here you will also find answers to practical questions about specific topics about measuring and testing technology and its applications.
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EPPE Blog Posts
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Analizatory jakości zasilania EPPE
Niezależnie od tego, jakie procesy zachodzą obecnie w systemie elektroenergetycznym, analizatory jakości zasilania z serii EPPE zarejestrują nawet niewielkie zakłócenia lub zmiany. Szczegółowe oceny jakości ujawniają nawet najmniejsze odchylenia i pomagają zidentyfikować przyczynę zakłóceń.
Systemy EPPE w sposób ciągły rejestrują wszystkie parametry systemu zasilania w celu analizy i dokumentacji jakości zasilania zgodnie ze standardami określonymi przez międzynarodowe normy, takie jak EN 50160 lub IEC 61000-4-30. Duża pojemność pamięci i skuteczne metody kompresji danych umożliwiają dokonywanie długoterminowych zapisów w okresach do kilku lat.
Oprócz ciągłego rejestrowania wszystkich wielkości istotnych dla jakości zasilania, zintegrowany moduł rejestratora błędów umożliwia wyzwalane zdarzeniami przechwytywanie procesów przejściowych z częstotliwością próbkowania do 30 kHz.
Obszary zastosowań:
Przykłady zastosowań:
Self-sufficient measuring point operation thanks to large and fail-safe measurement data memory
The device's internal 32 GB data memory is organized as a ring memory (FIFO) and holds 1000 fault recordings and power quality data for up to one year.
This allows the device to operate autonomously and can also be used without a permanent data connection to a central database or a higher-level archiving and evaluation system.
Reliable data storage and local access
Even in the event of failures or interruptions, operation of the EPPE remains stable and secure thanks to its fail-safe memory. If required, the measurement data and recordings can be read out locally, enabling flexible and independent data analysis.
Protection against power failures thanks to internal UPS
Thanks to the device's internal and maintenance-free supercap technology, EPPE bridges supply voltage interruptions of up to 60 seconds. This ensures that grid faults are reliably recorded under all circumstances and stored in the device's internal data memory for later analysis.
High operational safety thanks to aluminum housing and overload-proof measuring inputs
The EPPE aluminum housing provides effective shielding against strong electric fields and radio frequency interferences (EMI) that can occur in electrical power generation systems.
The housing offers decisive advantages in terms of mechanical protection, corrosion resistance and heat dissipation, which maximizes the performance and longevity of the meter and ensures operational safety.
The measuring inputs of the EPPE are extremely robust and can be permanently overloaded with up to 1000 V (L-N) and 100 A without being damaged. This load capacity ensures that the device works reliably even under extreme conditions and represents a long-term investment.
Examples of applications:
Fields of application:
Compact precision for grid analysis and fault recording
The EPPE system from KoCoS offers high-precision power quality and power measurement analysis with integrated fault recorder functions. EPPE is designed for the comprehensive monitoring of one bay. Ideal for municipal utilities and medium-sized installations, it combines power quality analysis and transient recording in one compact device. With sampling rates of up to 200 kHz, 32 GB memory and conformity to VDE-AR-N-4110/4120, EPPE is the perfect solution for detailed power quality analyses and fast fault localization in medium-voltage grids and EEG systems.
| Mechanical design | Panel and Rail mounting |
| Analog inputs | 4 voltage, 4 current |
| Measurement range | 600 V, 10A |
| Accuracy | +- 0,05% |
| Sampling rate | 200 kHz |
Comprehensive grid monitoring for large systems
SHERLOG is the multifunctional measurement and analysis system from KoCoS for the comprehensive monitoring of energy supply systems. With up to 32 analog inputs and 128 binary inputs per device, it is ideal for power plants and large grid infrastructures. SHERLOG combines functions such as high-resolution fault recording, power quality analysis and grid stability monitoring in one modular system.
| Mechanical design | 19” cabinet installation 3U/84 TE |
| Analog inputs | Up to 32, free configurable |
| Measurement range | 300 V, 40 A, 100 A, 200 A, 200 mV, 700 mV, 20 mA, 100mA |
| Accuracy | +- 0,05% |
| Sampling rate | 200 kHz |
With just a few clicks of the mouse, you can get started right away - totally easy!
Super quality, robust and reliable - that's exactly what we need!
The KoCoS units impress with their performance and reliability!
Convincing price-performance ratio!
The best operating and analysis software we have ever seen - powerful and self-explanatory. It is fun to work with!
100% Made in Germany!
The measurement functions go far beyond the requirements of the energy quality standards!
Finally, a device with which both standard-compliant and individual special measurement tasks can be carried out at a time.
Power Quality refers to the stability and purity of electrical energy in a power supply network. It includes parameters such as voltage level, frequency, harmonics, imbalance, flicker and voltage sags, surges and interruptions. High Power Quality is essential for the reliable operation of electrical devices and systems.
Improving power quality involves reducing disturbances and maintaining stable voltage and frequency levels. Key methods include:
Power quality can be improved through various measures, including
By implementing these solutions, businesses and industries can enhance the reliability and efficiency of their electrical systems.
Most power quality problems are caused by non-linear loads, sudden load changes and mains feedback from electrical devices. These include, for example, electronic loads such as frequency converters, switching power supplies and large machines, which can cause harmonics and voltage drops.
If you are still unsure whether the power quality products are right for you, we offer various options to provide you with the best possible support:
Feel free to contact us - we will help you find the best solution for you!
ContactIf you are still unsure whether the power quality products are right for you, we offer various options to provide you with the best possible support:
Technical Papers
Technical Paper
EPPE CX - Reducing the risk of blackouts with systematic data acquisition
2 MB
Technical paper
EPPE CX - Requirements to be met by a measuring system for efficiently monitoring supply systems and technical
4 MB
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